Unit 6 Fantastic friends(Reading for writing)同步练习(pdf版+word版含解析)外研版(2024)七年级上册


Unit 6 Fantastic friends
(Reading for writing)
一、单词拼写
根据句意及首字母提示或汉语意思,补全单词,使句子通顺完整。
The dodo is an e______ animal—you can only see its model in museums now.
Humans h______ dodos for food because the birds were slow and couldn't fly.
People cut down trees, so the dodos' forest h______ was destroyed.
The dodo used to live on an i______ in the Indian Ocean.
As a result of human activities, the dodo s______ died out hundreds of years ago.
We can learn about extinct animals like dodos from books and m______.
The world is full of fantastic a______, and we should protect them.
Pigs, cats and dogs brought by humans ate dodo e______, which made their number drop quickly.
In the past, dodos lived a p______ life with plenty of food and friendly animals around.
It's our duty to stop activities that may make more animals d______ out.
One of my good friends ______ (be) Li Hua.
There ______ (be) a pair of trousers on the bed.
Look, the boy ______ (have) a new watch on his hand.
Mike ______ (not like) reading picture books.
My father often ______ (drive) to work.
—What’s the ______ (weigh) of the vegetables
—About two kilos.
Which animal can see things from the ______ (far) away
Some ______ (mouse) didn’t know how to run away from the big cat.
Jack eats healthy food every day, so he’s very healthy and ______ (强壮的).
My grandpa lives ______ (独自地) in a small city.
These animals are clever. They can ______ (认出) themselves in the mirror.
The scientists are doing some online ______ (研究) on wild animals. They are trying to save them.
There are ______ (几个) shelves at the back of the classroom.
The young writer says that he is ______ (创作) a new novel.
There are eight ______ (elephant) in the picture.
二、单项选择
从每题所给的 A、B、C、D 四个选项中,选出最佳答案。
Where can people see dodos now ( )
In the Indian Ocean B. In forests
C. In museums D. In Alice's Adventures in Wonderland
Why couldn't dodos run away from humans ( )
A. They were too small B. They were slow and couldn't fly
C. They were afraid of humans D. They liked humans
What did humans do to destroy dodos' home ( )
A. They hunted dodos B. They ate dodo eggs
C. They cut down trees D. They brought pigs and dogs
Which of the following is NOT a reason for dodo's extinction ( )
A. Lack of food B. Human hunting
C. Animals eating their eggs D. Destruction of their habitat
What does "die out" mean in the passage ( )
A. 生病 B. 灭绝 C. 逃跑 D. 繁殖
Where did dodos used to live ( )
On a mountain B. In a desert
C. On an island in the Indian Ocean D. In a forest in Europe
What kind of life did dodos live before humans arrived ( )
A. Dangerous B. Peaceful and safe C. Hungry D. Lonely
What can we learn from the dodo's story ( )
A. Humans should protect animals B. All slow animals will die out
C. Animals should live in museums D. We don't need to care about extinct animals
Which animal is mentioned as a character in a book ( )
A. Pig B. Dodo C. Cat D. Dog
What does the writer want to tell us through the dodo's story ( )
A. Museums are good places to keep animal models
B. Humans are more powerful than animals
C. We should try our best to protect living animals
D. It's too late to save extinct animals
三、完成句子
根据句意及提示,补全句子,使句意完整通顺。
渡渡鸟过去生活在印度洋的一个岛上。
Dodos ______ ______ ______ on an island in the Indian Ocean.
人类砍伐树木,破坏了渡渡鸟的家园。
Humans ______ ______ trees and destroyed the dodos' home.
由于人类的活动,渡渡鸟很快就灭绝了。
______ ______ human activities, dodos soon ______ ______.
现在你只能在博物馆里看到渡渡鸟(的模型)。
Now you can only ______ dodos in ______.
请记住渡渡鸟悲伤的故事,尽最大努力帮助其他动物。
Please ______ the dodos' sad story and ______ ______ ______ to help other animals.
渡渡鸟行动缓慢且不会飞,所以很容易被人类捕捉。
Dodos were slow and couldn't fly, so they ______ ______ ______ by humans.
人类带来的猪、猫和狗吃掉了渡渡鸟的蛋。
Pigs, cats and dogs brought by humans ______ ______ ______.
过去,岛上有充足的食物,渡渡鸟过着幸福的生活。
In the past, there was ______ ______ food on the island, and dodos lived a happy life.
世界上充满了奇妙的动物,我们不应该让它们消失。
The world is full of ______ ______, and we shouldn't let them disappear.
渡渡鸟的故事告诉我们,人类的行为会对动物产生巨大影响。
The dodo's story tells us that human behavior can ______ ______ ______ ______ on animals.
四、完形填空
阅读短文,从每题所给的 A、B、C、D 四个选项中,选出最佳答案,使短文通顺完整。
Passage 1
Have you ever heard of the dodo It was a unique bird that once lived on an island in the Indian Ocean. Before humans arrived, dodos lived a 46. ______ life. There was enough fruit for them to eat, and no animals wanted to hurt them. They didn't need to fly, so their wings became weak over time. They were also quite slow, but that didn't bring them any trouble at that time.
However, everything changed when humans came to the island in 1598. The humans 47. ______ down many trees to build houses and farms. This destroyed the dodos' habitat, leaving them with no place to live. What's worse, humans thought dodos were easy to catch and started to 48. ______ them for food. To make things even worse, the pigs, cats and dogs that humans brought with them loved to eat dodo eggs.
With no home, being hunted by humans, and their eggs being eaten, the number of dodos dropped 49. ______. Soon, there were no dodos left in the world. Today, we can only see dodo models in museums. The dodo's story is a sad reminder that human activities can easily make animals 50. ______. We must learn from this and protect the animals around us.
A. difficult B. peaceful C. dangerous D. busy ( )
A. cut B. put C. took D. turned ( )
A. feed B. help C. hunt D. keep ( )
A. slowly B. quickly C. suddenly D. recently ( )
A. live B. grow C. die out D. wake up ( )
Passage 2
Many animals have become extinct because of human activities, and the dodo is one of the most famous ones. Let's learn more about its story.
Dodos were big birds. They had short necks and small wings. They couldn't fly, but they could walk on the ground. They lived on an island where there were no 51. ______ animals. So they felt safe and didn't need to hide from anyone. They ate fruit that fell from trees and drank water from small rivers.
Then humans came. At first, dodos were not afraid of humans because they had never seen them before. But humans didn't treat dodos 52. ______. They killed dodos and ate their meat. They also brought other animals to the island. These animals, like pigs and dogs, loved to eat dodo eggs. Dodos couldn't 53. ______ their eggs from these animals.
Soon, there were fewer and fewer dodos. By the end of the 17th century, the last dodo died. Now, when people talk about extinct animals, they often think of the dodo. We should remember that every animal is important to the Earth. If we don't protect them, more animals will 54. ______ the same way as the dodo. Let's work together to make sure that future generations can see more living animals, not just their models in 55. ______.
A. friendly B. dangerous C. small D. large ( )
A. kindly B. badly C. carefully D. clearly ( )
A. find B. protect C. collect D. carry ( )
A. live B. die C. change D. move ( )
A. schools B. parks C. museums D. zoos ( )
Passage 3
One morning, a tiger is walking in the forest. He is very 56. ______because he has nothing to eat. Suddenly, he sees a 57. ______ and catches her. The tiger opens his mouth, full of long sharp 58. ______, and says to the fox, "Why are you walking in my forest What are you doing here I shall have you for my 49. ______."
The fox is 60. ______, but she has a good idea at once. She 61. ______, "My dear sir, you must not think that you are the king of the animals. Of course, you are very strong. But I am the most powerful from now on. If you don't believe me, you can follow me. I will  62. ______ you how other animals are afraid of me."
So the tiger and the fox walk together. The fox is in front of the tiger and the tiger 63. ______ behind the fox. When the animals see the tiger behind the fox, they all 64. ______  away. Then the fox says, "Now you see it. All the animals are afraid of me, not you. I am the most powerful. I shall have you for my breakfast."
The tiger hears the fox's words and leaves 65. ______.
A. healthy   B. tired   C. hungry   D. sorry ( )
A. bear    B. fox    C. monkey   D. lion ( )
A. feet    B. teeth   C. hands    D. noses ( )
A. lunch    B. afternoon tea  C. breakfast  D. dinner ( )
A. clever    B. happy   C. angry    D. afraid ( )
A. talks    B. tells   C. sings    D. answers ( )
A. show    B. teach   C. watch    D. hear ( )
A. gets    B. goes   C. jumps    D. dances ( )
A. put     B. take   C. give    D. run ( )
A. slowly   B. quickly  C. really    D. happily ( )
五、阅读理解
阅读下列短文,从每题所给的 A、B、C、D 四个选项中,选出最佳答案。
Passage 1
The Sad Story of the Dodo
Are you familiar with the dodo You might have read about it in the book Alice's Adventures in Wonderland, but the dodo was a real bird once. However, you can't see a living dodo now—they died out hundreds of years ago.
Dodos lived on a small island in the Indian Ocean. Before humans arrived, the island was a perfect home for dodos. There was plenty of fruit for them to eat, and there were no dangerous animals. Dodos didn't need to fly because they had no enemies. Over time, their wings became too weak to fly. They walked slowly on the ground and lived a peaceful life.
Everything changed in 1598 when a group of humans landed on the island. The humans wanted to build houses and farms, so they cut down many trees. This destroyed the dodos' habitat. The humans also found that dodos were easy to catch because they were slow and not afraid of people. They hunted dodos for their meat.
What's more, the humans brought pigs, cats and dogs to the island. These animals had never lived on the island before. They ate the dodo eggs whenever they found them. Dodos couldn't protect their eggs from these animals.
As a result of all these things, the number of dodos decreased quickly. By 1681, the last dodo died. Today, we can only see dodo models in museums around the world.
The dodo's story is a warning to us. We must be careful with our actions. Every animal plays an important role in nature. If we keep destroying their habitats or hunting them, more animals will die out. Let's protect animals and make the world a better place for all living things.
What is the main idea of the passage ( )
A. The life of dodos on the island B. How dodos became extinct
C. The appearance of dodos D. Where to see dodo models
Why couldn't dodos fly ( )
A. They didn't like flying B. They had no wings
C. Their wings were too weak D. There was no need to fly and their wings became weak
When did humans first arrive on the dodo's island ( )
In 1598 B. In 1681
C. In the 17th century D. We don't know
Which of the following is NOT a reason for the dodo's extinction ( )
A. Humans cut down trees and destroyed their habitat
B. Humans hunted dodos for meat
C. Dodos didn't like to eat the food on the island
D. Animals brought by humans ate dodo eggs
What can we learn from the dodo's story ( )
A. We should build more museums for extinct animals
B. We should protect animals and their habitats
C. All birds that can't fly will die out
D. Humans need to hunt animals for food
Passage 2
Extinct Animals: Lessons from the Dodo
The dodo is one of the most well-known extinct animals. Its story has taught humans a lot about how our actions affect other living things.
Before humans came to their island home, dodos had no natural enemies. They lived comfortably, eating fruit and walking around slowly. They didn't develop the ability to fly because they didn't need to escape from danger. This made them an easy target for humans later.
When humans arrived, they didn't just hunt dodos. They also changed the island's environment. Cutting down trees meant dodos had fewer places to nest and less food to eat. The animals that humans brought with them, such as pigs and dogs, were another big problem. These animals ate dodo eggs, which meant fewer baby dodos were born.
It took less than 100 years for the entire dodo population to disappear. This shows how quickly a species can become extinct when its environment is destroyed and it is hunted by humans.
The dodo's extinction wasn't just a loss for the bird itself. It also affected the island's ecosystem. For example, some plants on the island depended on dodos to eat their fruits and spread their seeds. Without dodos, these plants also started to disappear.
Today, scientists study the dodo to understand how to protect other animals from becoming extinct. They remind us that every animal is part of a larger system. When one species dies out, it can cause problems for many other species.
We can all learn from the dodo's story. Small actions, like protecting a forest or not hunting wild animals, can make a big difference. We should remember that we share the Earth with many other living things, and it's our responsibility to protect them.
Why didn't dodos develop the ability to fly ( )
A. They were too heavy
B. They had no natural enemies and didn't need to escape
C. They didn't like flying
D. The island had no space for them to fly
How long did it take for the dodo population to disappear after humans arrived ( )
A. Less than 50 years B. Less than 100 years
C. More than 200 years D. About 500 years
What effect did the dodo's extinction have on the island's ecosystem ( )
A. Some plants started to disappear because there were no dodos to spread their seeds
B. The number of pigs and dogs on the island decreased
C. The island became a better place for other birds
D. The island's weather changed
Why do scientists study the dodo ( )
A. To learn how to make dodo models for museums
B. To understand how to protect other animals from extinction
C. To find out what dodos ate in the past
D. To know how to bring dodos back to life
What is the writer's main message in the passage ( )
A. The dodo was a unique bird
B. Humans are the only cause of animal extinction
C. We should protect animals and their ecosystems
D. Scientists are working hard to protect animals
答案及解析
一、单词拼写
答案:extinct
解析:渡渡鸟是一种 “灭绝的(extinct)” 动物,现在只能在博物馆看到它的模型。
答案:hunted
解析:人类 “狩猎(hunt)” 渡渡鸟作为食物,此处用过去式表示过去发生的动作。
答案:habitat
解析:人类砍伐树木,渡渡鸟的森林 “栖息地(habitat)” 被破坏。
答案:island
解析:渡渡鸟过去生活在印度洋的一个 “岛屿(island)” 上。
答案:soon
解析:由于人类活动,渡渡鸟在几百年前 “很快(soon)” 就灭绝了。
答案:museums
解析:我们可以从书籍和 “博物馆(museum)” 中了解渡渡鸟这样的灭绝动物,用复数表泛指。
答案:animals
解析:世界上充满了奇妙的 “动物(animal)”,我们应该保护它们,用复数表泛指。
答案:eggs
解析:人类带来的猪、猫和狗吃掉了渡渡鸟的 “蛋(egg)”,用复数表泛指。
答案:peaceful
解析:过去,渡渡鸟过着 “平静的(peaceful)” 生活,周围有充足的食物和友好的动物。
答案:die
解析:阻止可能导致更多动物 “灭绝(die out)” 的活动是我们的责任。
答案:is
解析:“one of + 复数名词” 作主语时,谓语动词用第三人称单数形式,所以 be 动词用 “is”。
答案:is
解析:“there be” 句型中,be 动词的单复数由 “a pair of trousers” 中的 “pair” 决定,“a pair” 是单数,所以用 “is”。
答案:has
解析:主语 “the boy” 是第三人称单数,一般现在时中动词 “have” 用第三人称单数形式 “has”。
答案:doesn’t like
解析:主语 “Mike” 是第三人称单数,一般现在时的否定形式借助助动词 “doesn’t”,后面动词用原形 “like”。
答案:drives
解析:主语 “My father” 是第三人称单数,一般现在时中动词 “drive” 用第三人称单数形式 “drives”。
答案:weight
解析:“the weight of...” 是固定搭配,意为 “…… 的重量”,“weigh” 的名词形式是 “weight”。
答案:farthest
解析:“from the farthest away” 表示 “从最远的地方”,此处用 “far” 的最高级 “farthest”。
答案:mice
解析:“mouse” 的复数形式是 “mice”,“some” 后接复数名词。
答案:strong
解析:“强壮的” 英文是 “strong”,与 “healthy” 并列作表语。
答案:alone
解析:“独自地” 英文是 “alone”,修饰动词 “lives”。
答案:recognize
解析:“认出” 的英文是 “recognize”,情态动词 “can” 后接动词原形。
答案:research
解析:“研究” 的英文是 “research”,“do research on...” 是固定搭配,意为 “对…… 进行研究”。
答案:several
解析:“几个” 的英文是 “several”,修饰可数名词复数 “shelves”。
答案:creating
解析:“创作” 的英文是 “create”,此处用现在进行时,“is” 后接现在分词 “creating”。
答案:elephants
解析:“eight” 后接可数名词复数,“elephant” 的复数形式是 “elephants”。
二、单项选择
答案:C
解析:根据文章内容,渡渡鸟已灭绝,现在只能在博物馆看到其模型,A. 印度洋;B. 森林;D. 《爱丽丝梦游仙境》(书中是虚构角色),均不符合,故选 C。
答案:B
解析:文中提到渡渡鸟行动缓慢且不会飞,所以无法逃离人类,A. 太小;C. 害怕人类;D. 喜欢人类,均不符合,故选 B。
答案:C
解析:人类砍伐树木破坏了渡渡鸟的家园,A. 狩猎渡渡鸟;B. 吃渡渡鸟蛋;D. 带来猪和狗,均不是破坏家园的行为,故选 C。
答案:A
解析:渡渡鸟灭绝的原因包括人类狩猎、动物吃蛋、栖息地破坏,文中未提及 “缺乏食物”,渡渡鸟过去食物充足,故选 A。
答案:B
解析:结合上下文,渡渡鸟已灭绝,“die out” 意为 “灭绝”,A、C、D 均不符合,故选 B。
答案:C
解析:根据文章,渡渡鸟过去生活在印度洋的一个岛上,A. 山上;B. 沙漠;D. 欧洲森林,均不符合,故选 C。
答案:B
解析:人类到来前渡渡鸟过着平静安全的生活,A. 危险的;C. 饥饿的;D. 孤独的,均不符合,故选 B。
答案:A
解析:渡渡鸟的故事告诉我们人类应保护动物,B. 所有行动缓慢的动物都会灭绝(表述绝对);C. 动物应生活在博物馆;D. 无需关心灭绝动物,均错误,故选 A。
答案:B
解析:文中提到渡渡鸟在《爱丽丝梦游仙境》中是角色,A. 猪;C. 猫;D. 狗,均未提及在书中的角色,故选 B。
答案:C
解析:作者通过渡渡鸟的故事想告诉我们应尽力保护现存动物,A. 博物馆是保存动物模型的好地方;B. 人类比动物强大;D. 拯救灭绝动物太晚了,均不符合主旨,故选 C。
三、完成句子
答案:used to live
解析:“过去生活” 用 “used to live”。
答案:cut down
解析:“砍伐” 用 “cut down”,与 “destroyed” 时态一致,用过去式。
答案:Because of; died out
解析:“由于” 用 “Because of”(后接名词短语);“灭绝” 用 “died out”,结合 “soon” 用过去式。
答案:see; museums
解析:“看到” 用 “see”;“博物馆” 用 “museums”(复数表泛指)。
答案:remember; try your best
解析:“记住” 用 “remember”;“尽最大努力” 用 “try your best”。
答案:were easily caught
解析:“被捕捉” 用被动语态 “were caught”,“容易地” 用 “easily” 修饰。
答案:ate dodo eggs
解析:“吃掉渡渡鸟的蛋” 用 “ate dodo eggs”,用过去式。
答案:plenty of
解析:“充足的” 用 “plenty of”。
答案:amazing animals
解析:“奇妙的动物” 用 “amazing animals”(复数表泛指)。
答案:have a great influence
解析:“对…… 产生巨大影响” 用 “have a great influence on”。
四、完形填空
Passage 1
答案:B
解析:人类到来前渡渡鸟生活 “平静(peaceful)”,A. 困难的;C. 危险的;D. 忙碌的,均不符合,故选 B。
答案:A
解析:“砍伐树木” 用 “cut down”,A. 切割;B. 放置;C. 拿;D. 转变,均不构成此搭配,故选 A。
答案:C
解析:人类 “狩猎(hunt)” 渡渡鸟作为食物,A. 喂养;B. 帮助;D. 保持,均不符合,故选 C。
答案:B
解析:渡渡鸟数量 “快速(quickly)” 减少,A. 缓慢地;C. 突然地;D. 最近地,均不符合,故选 B。
答案:C
解析:人类活动使动物 “灭绝(die out)”,A. 生活;B. 成长;D. 醒来,均不符合,故选 C。
Passage 2
答案:B
解析:岛上没有 “危险的(dangerous)” 动物,渡渡鸟才感到安全,A. 友好的;C. 小的;D. 大的,均不符合,故选 B。
答案:A
解析:人类对渡渡鸟不 “友好(kindly)”,A. 友好地;B. 糟糕地;C. 仔细地;D. 清楚地,结合 “killed dodos” 选 A。
答案:B
解析:渡渡鸟无法 “保护(protect)” 自己的蛋,A. 找到;C. 收集;D. 携带,均不符合,故选 B。
答案:B
解析:更多动物会像渡渡鸟一样 “死亡(die)”,A. 生活;C. 改变;D. 移动,均不符合,故选 B。
答案:C
解析:灭绝动物的模型在 “博物馆(museums)”,A. 学校;B. 公园;D. 动物园,均不符合,故选 C。
Passage 3
答案:C
解析:根据 “because he has nothing to eat” 可知,老虎很 “饿(hungry)”,A. 健康的;B. 疲倦的;D. 抱歉的,均不符合语境,故选 C。
答案:B
解析:根据后文对话可知,老虎抓住的是 “狐狸(fox)”,A. 熊;C. 猴子;D. 狮子,均不符合,故选 B。
答案:B
解析:老虎嘴里满是长而锋利的 “牙齿(teeth)”,A. 脚;C. 手;D. 鼻子,均不符合,故选 B。
答案:C
解析:根据故事结尾 “I shall have you for my breakfast” 可知,老虎想把狐狸当 “早餐(breakfast)”,A. 午餐;B. 下午茶;D. 晚餐,均不符合,故选 C。
答案:D
解析:狐狸被老虎抓住,感到 “害怕(afraid)”,A. 聪明的;B. 开心的;C. 生气的,均不符合,故选 D。
答案:D
解析:狐狸 “回答(answers)” 老虎的话,A. 谈论;B. 告诉;C. 唱歌,均不符合,故选 D。
答案:A
解析:狐狸要 “展示(show)” 其他动物如何害怕自己,A. 展示;B. 教;C. 观看;D. 听见,均不符合,故选 A。
答案:B
解析:老虎 “走(goes)” 在狐狸后面,A. 得到;C. 跳;D. 跳舞,均不符合,故选 B。
答案:D
解析:动物们看到老虎,都 “跑(run)” 开了,“run away” 是固定搭配,意为 “逃跑”,A. 放;B. 拿;C. 给,均不构成此搭配,故选 D。
答案:B
解析:老虎听了狐狸的话,“快速地(quickly)” 离开了,A. 缓慢地;C. 真正地;D. 开心地,均不符合,故选 B。
五、阅读理解
Passage 1
答案:B
解析:文章主要讲述渡渡鸟 “如何灭绝(how dodos became extinct)”,A. 渡渡鸟在岛上的生活(细节);C. 渡渡鸟的外貌(未详细描述);D. 在哪里看渡渡鸟模型(细节),均不符合,故选 B。
答案:D
解析:渡渡鸟不需要飞行且翅膀变弱,所以不会飞,A. 不喜欢飞;B. 没有翅膀;C. 翅膀太弱(仅部分原因),均不全面,故选 D。
答案:A
解析:根据 “humans came to the island in 1598” 可知,人类 1598 年到达,B. 1681 年(最后一只渡渡鸟死亡时间);C. 17 世纪;D. 不知道,均不符合,故选 A。
答案:C
解析:文中未提及 “渡渡鸟不喜欢岛上的食物”,A、B、D 均是灭绝原因,故选 C。
答案:B
解析:渡渡鸟的故事告诉我们应 “保护动物和它们的栖息地”,A. 建更多博物馆;C. 所有不会飞的鸟都会灭绝(表述绝对);D. 人类需要狩猎动物为食,均错误,故选 B。
Passage 2
答案:B
解析:渡渡鸟没有天敌,不需要逃跑,所以没发展出飞行能力,A. 太重;C. 不喜欢飞;D. 岛上没空间飞,均不符合,故选 B。
答案:B
解析:根据 “It took less than 100 years for the entire dodo population to disappear” 可知,不到 100 年,A. 不到 50 年;C. 超过 200 年;D. 约 500 年,均不符合,故选 B。
答案:A
解析:渡渡鸟灭绝后,依赖其传播种子的植物也开始消失,B. 猪和狗数量减少;C. 岛屿对其他鸟更友好;D. 岛屿天气变化,均不符合,故选 A。
答案:B
解析:科学家研究渡渡鸟是为了 “了解如何保护其他动物不灭绝”,A. 学习制作博物馆模型;C. 了解渡渡鸟过去的食物;D. 知道如何让渡渡鸟复活,均不符合,故选 B。
答案:C
解析:作者的主要观点是应 “保护动物和它们的生态系统”,A. 渡渡鸟是独特的鸟;B. 人类是动物灭绝的唯一原因(表述绝对);D. 科学家在努力保护动物(细节),均不符合主旨,故选 C。
()
Unit 6 Fantastic friends
(Reading for writing)
一、单词拼写
根据句意及首字母提示或汉语意思,补全单词,使句子通顺完整。
1. The dodo is an e______ animal—you can only see its model in museums now.
2. Humans h______ dodos for food because the birds were slow and couldn't fly.
3. People cut down trees, so the dodos' forest h______ was destroyed.
4. The dodo used to live on an i______ in the Indian Ocean.
5. As a result of human activities, the dodo s______ died out hundreds of years ago.
6. We can learn about extinct animals like dodos from books and m______.
7. The world is full of fantastic a______, and we should protect them.
8. Pigs, cats and dogs brought by humans ate dodo e______, which made their number drop
quickly.
9. In the past, dodos lived a p______ life with plenty of food and friendly animals around.
10. It's our duty to stop activities that may make more animals d______ out.
11. One of my good friends ______ (be) Li Hua.
12. There ______ (be) a pair of trousers on the bed.
13. Look, the boy ______ (have) a new watch on his hand.
14. Mike ______ (not like) reading picture books.
15. My father often ______ (drive) to work.
16. —What’s the ______ (weigh) of the vegetables
—About two kilos.
17. Which animal can see things from the ______ (far) away
18. Some ______ (mouse) didn’t know how to run away from the big cat.
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19. Jack eats healthy food every day, so he’s very healthy and ______ (强壮的).
20. My grandpa lives ______ (独自地) in a small city.
21. These animals are clever. They can ______ (认出) themselves in the mirror.
22. The scientists are doing some online ______ (研究) on wild animals. They are trying to
save them.
23. There are ______ (几个) shelves at the back of the classroom.
24. The young writer says that he is ______ (创作) a new novel.
25. There are eight ______ (elephant) in the picture.
二、单项选择
从每题所给的 A、B、C、D四个选项中,选出最佳答案。
26. Where can people see dodos now ( )
A. In the Indian Ocean B. In forests
C. In museums D. In Alice's Adventures in Wonderland
27. Why couldn't dodos run away from humans ( )
A. They were too small B. They were slow and couldn't fly
C. They were afraid of humans D. They liked humans
28. What did humans do to destroy dodos' home ( )
A. They hunted dodos B. They ate dodo eggs
C. They cut down trees D. They brought pigs and dogs
29. Which of the following is NOT a reason for dodo's extinction ( )
A. Lack of food B. Human hunting
C. Animals eating their eggs D. Destruction of their habitat
30. What does "die out" mean in the passage ( )
A.生病 B.灭绝 C.逃跑 D.繁殖
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31. Where did dodos used to live ( )
A. On a mountain B. In a desert
C. On an island in the Indian Ocean D. In a forest in Europe
32. What kind of life did dodos live before humans arrived ( )
A. Dangerous B. Peaceful and safe C. Hungry D. Lonely
33. What can we learn from the dodo's story ( )
A. Humans should protect animals B. All slow animals will die out
C. Animals should live in museums D. We don't need to care about extinct
animals
34. Which animal is mentioned as a character in a book ( )
A. Pig B. Dodo C. Cat D. Dog
35. What does the writer want to tell us through the dodo's story ( )
A. Museums are good places to keep animal models
B. Humans are more powerful than animals
C. We should try our best to protect living animals
D. It's too late to save extinct animals
三、完成句子
根据句意及提示,补全句子,使句意完整通顺。
36. 渡渡鸟过去生活在印度洋的一个岛上。
Dodos ______ ______ ______ on an island in the Indian Ocean.
37. 人类砍伐树木,破坏了渡渡鸟的家园。
Humans ______ ______ trees and destroyed the dodos' home.
38. 由于人类的活动,渡渡鸟很快就灭绝了。
______ ______ human activities, dodos soon ______ ______.
39. 现在你只能在博物馆里看到渡渡鸟(的模型)。
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Now you can only ______ dodos in ______.
40. 请记住渡渡鸟悲伤的故事,尽最大努力帮助其他动物。
Please ______ the dodos' sad story and ______ ______ ______ to help other animals.
41. 渡渡鸟行动缓慢且不会飞,所以很容易被人类捕捉。
Dodos were slow and couldn't fly, so they ______ ______ ______ by humans.
42. 人类带来的猪、猫和狗吃掉了渡渡鸟的蛋。
Pigs, cats and dogs brought by humans ______ ______ ______.
43. 过去,岛上有充足的食物,渡渡鸟过着幸福的生活。
In the past, there was ______ ______ food on the island, and dodos lived a happy life.
44. 世界上充满了奇妙的动物,我们不应该让它们消失。
The world is full of ______ ______, and we shouldn't let them disappear.
45. 渡渡鸟的故事告诉我们,人类的行为会对动物产生巨大影响。
The dodo's story tells us that human behavior can ______ ______ ______ ______ on animals.
四、完形填空
阅读短文,从每题所给的 A、B、C、D四个选项中,选出最佳答案,使短文通顺完
整。
Passage 1
Have you ever heard of the dodo It was a unique bird that once lived on an island in the
Indian Ocean. Before humans arrived, dodos lived a 46. ______ life. There was enough fruit
for them to eat, and no animals wanted to hurt them. They didn't need to fly, so their wings
became weak over time. They were also quite slow, but that didn't bring them any trouble at
that time.
However, everything changed when humans came to the island in 1598. The humans 47.
______ down many trees to build houses and farms. This destroyed the dodos' habitat,
leaving them with no place to live. What's worse, humans thought dodos were easy to catch
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and started to 48. ______ them for food. To make things even worse, the pigs, cats and dogs
that humans brought with them loved to eat dodo eggs.
With no home, being hunted by humans, and their eggs being eaten, the number of dodos
dropped 49. ______. Soon, there were no dodos left in the world. Today, we can only see
dodo models in museums. The dodo's story is a sad reminder that human activities can easily
make animals 50. ______. We must learn from this and protect the animals around us.
46. A. difficult B. peaceful C. dangerous D. busy ( )
47. A. cut B. put C. took D. turned ( )
48. A. feed B. help C. hunt D. keep ( )
49. A. slowly B. quickly C. suddenly D. recently ( )
50. A. live B. grow C. die out D. wake up ( )
Passage 2
Many animals have become extinct because of human activities, and the dodo is one of the
most famous ones. Let's learn more about its story.
Dodos were big birds. They had short necks and small wings. They couldn't fly, but they
could walk on the ground. They lived on an island where there were no 51. ______ animals.
So they felt safe and didn't need to hide from anyone. They ate fruit that fell from trees and
drank water from small rivers.
Then humans came. At first, dodos were not afraid of humans because they had never seen
them before. But humans didn't treat dodos 52. ______. They killed dodos and ate their meat.
They also brought other animals to the island. These animals, like pigs and dogs, loved to eat
dodo eggs. Dodos couldn't 53. ______ their eggs from these animals.
Soon, there were fewer and fewer dodos. By the end of the 17th century, the last dodo died.
Now, when people talk about extinct animals, they often think of the dodo. We should
remember that every animal is important to the Earth. If we don't protect them, more animals
will 54. ______ the same way as the dodo. Let's work together to make sure that future
generations can see more living animals, not just their models in 55. ______.
51. A. friendly B. dangerous C. small D. large ( )
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52. A. kindly B. badly C. carefully D. clearly ( )
53. A. find B. protect C. collect D. carry ( )
54. A. live B. die C. change D. move ( )
55. A. schools B. parks C. museums D. zoos ( )
Passage 3
One morning, a tiger is walking in the forest. He is very 56. ______because he has nothing to
eat. Suddenly, he sees a 57. ______ and catches her. The tiger opens his mouth, full of long
sharp 58. ______, and says to the fox, "Why are you walking in my forest What are you
doing here I shall have you for my 49. ______."
The fox is 60. ______, but she has a good idea at once. She 61. ______, "My dear sir, you
must not think that you are the king of the animals. Of course, you are very strong. But I am
the most powerful from now on. If you don't believe me, you can follow me. I will 62.
______ you how other animals are afraid of me."
So the tiger and the fox walk together. The fox is in front of the tiger and the tiger 63. ______
behind the fox. When the animals see the tiger behind the fox, they all 64. ______ away.
Then the fox says, "Now you see it. All the animals are afraid of me, not you. I am the most
powerful. I shall have you for my breakfast."
The tiger hears the fox's words and leaves 65. ______.
56. A. healthy B. tired C. hungry D. sorry ( )
57. A. bear B. fox C. monkey D. lion ( )
58. A. feet B. teeth C. hands D. noses ( )
59. A. lunch B. afternoon tea C. breakfast D. dinner ( )
60. A. clever B. happy C. angry D. afraid ( )
61. A. talks B. tells C. sings D. answers ( )
62. A. show B. teach C. watch D. hear ( )
63. A. gets B. goes C. jumps D. dances ( )
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64. A. put B. take C. give D. run ( )
65. A. slowly B. quickly C. really D. happily ( )
五、阅读理解
阅读下列短文,从每题所给的 A、B、C、D四个选项中,选出最佳答案。
Passage 1
The Sad Story of the Dodo
Are you familiar with the dodo You might have read about it in the book Alice's Adventures
in Wonderland, but the dodo was a real bird once. However, you can't see a living dodo
now—they died out hundreds of years ago.
Dodos lived on a small island in the Indian Ocean. Before humans arrived, the island was a
perfect home for dodos. There was plenty of fruit for them to eat, and there were no
dangerous animals. Dodos didn't need to fly because they had no enemies. Over time, their
wings became too weak to fly. They walked slowly on the ground and lived a peaceful life.
Everything changed in 1598 when a group of humans landed on the island. The humans
wanted to build houses and farms, so they cut down many trees. This destroyed the dodos'
habitat. The humans also found that dodos were easy to catch because they were slow and not
afraid of people. They hunted dodos for their meat.
What's more, the humans brought pigs, cats and dogs to the island. These animals had never
lived on the island before. They ate the dodo eggs whenever they found them. Dodos couldn't
protect their eggs from these animals.
As a result of all these things, the number of dodos decreased quickly. By 1681, the last dodo
died. Today, we can only see dodo models in museums around the world.
The dodo's story is a warning to us. We must be careful with our actions. Every animal plays
an important role in nature. If we keep destroying their habitats or hunting them, more
animals will die out. Let's protect animals and make the world a better place for all living
things.
66. What is the main idea of the passage ( )
A. The life of dodos on the island B. How dodos became extinct
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C. The appearance of dodos D. Where to see dodo models
67. Why couldn't dodos fly ( )
A. They didn't like flying B. They had no wings
C. Their wings were too weak D. There was no need to fly and their
wings became weak
68. When did humans first arrive on the dodo's island ( )
A. In 1598 B. In 1681
C. In the 17th century D. We don't know
69. Which of the following is NOT a reason for the dodo's extinction ( )
A. Humans cut down trees and destroyed their habitat
B. Humans hunted dodos for meat
C. Dodos didn't like to eat the food on the island
D. Animals brought by humans ate dodo eggs
70. What can we learn from the dodo's story ( )
A. We should build more museums for extinct animals
B. We should protect animals and their habitats
C. All birds that can't fly will die out
D. Humans need to hunt animals for food
Passage 2
Extinct Animals: Lessons from the Dodo
The dodo is one of the most well-known extinct animals. Its story has taught humans a lot
about how our actions affect other living things.
Before humans came to their island home, dodos had no natural enemies. They lived
comfortably, eating fruit and walking around slowly. They didn't develop the ability to fly
because they didn't need to escape from danger. This made them an easy target for humans
later.
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When humans arrived, they didn't just hunt dodos. They also changed the island's
environment. Cutting down trees meant dodos had fewer places to nest and less food to eat.
The animals that humans brought with them, such as pigs and dogs, were another big
problem. These animals ate dodo eggs, which meant fewer baby dodos were born.
It took less than 100 years for the entire dodo population to disappear. This shows how
quickly a species can become extinct when its environment is destroyed and it is hunted by
humans.
The dodo's extinction wasn't just a loss for the bird itself. It also affected the island's
ecosystem. For example, some plants on the island depended on dodos to eat their fruits and
spread their seeds. Without dodos, these plants also started to disappear.
Today, scientists study the dodo to understand how to protect other animals from becoming
extinct. They remind us that every animal is part of a larger system. When one species dies
out, it can cause problems for many other species.
We can all learn from the dodo's story. Small actions, like protecting a forest or not hunting
wild animals, can make a big difference. We should remember that we share the Earth with
many other living things, and it's our responsibility to protect them.
71. Why didn't dodos develop the ability to fly ( )
A. They were too heavy
B. They had no natural enemies and didn't need to escape
C. They didn't like flying
D. The island had no space for them to fly
72. How long did it take for the dodo population to disappear after humans arrived ( )
A. Less than 50 years B. Less than 100 years
C. More than 200 years D. About 500 years
73. What effect did the dodo's extinction have on the island's ecosystem ( )
A. Some plants started to disappear because there were no dodos to spread their seeds
B. The number of pigs and dogs on the island decreased
C. The island became a better place for other birds
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D. The island's weather changed
74. Why do scientists study the dodo ( )
A. To learn how to make dodo models for museums
B. To understand how to protect other animals from extinction
C. To find out what dodos ate in the past
D. To know how to bring dodos back to life
75. What is the writer's main message in the passage ( )
A. The dodo was a unique bird
B. Humans are the only cause of animal extinction
C. We should protect animals and their ecosystems
D. Scientists are working hard to protect animals
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答案及解析
一、单词拼写
1. 答案:extinct
解析:渡渡鸟是一种 “灭绝的(extinct)”动物,现在只能在博物馆看到它的模型。
2. 答案:hunted
解析:人类 “狩猎(hunt)”渡渡鸟作为食物,此处用过去式表示过去发生的动作。
3. 答案:habitat
解析:人类砍伐树木,渡渡鸟的森林 “栖息地(habitat)”被破坏。
4. 答案:island
解析:渡渡鸟过去生活在印度洋的一个 “岛屿(island)”上。
5. 答案:soon
解析:由于人类活动,渡渡鸟在几百年前 “很快(soon)”就灭绝了。
6. 答案:museums
解析:我们可以从书籍和 “博物馆(museum)”中了解渡渡鸟这样的灭绝动物,用复
数表泛指。
7. 答案:animals
解析:世界上充满了奇妙的 “动物(animal)”,我们应该保护它们,用复数表泛指。
8. 答案:eggs
解析:人类带来的猪、猫和狗吃掉了渡渡鸟的 “蛋(egg)”,用复数表泛指。
9. 答案:peaceful
解析:过去,渡渡鸟过着 “平静的(peaceful)”生活,周围有充足的食物和友好的动
物。
10. 答案:die
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解析:阻止可能导致更多动物 “灭绝(die out)”的活动是我们的责任。
11. 答案:is
解析:“one of +复数名词”作主语时,谓语动词用第三人称单数形式,所以 be动词用
“is”。
12. 答案:is
解析:“there be”句型中,be动词的单复数由 “a pair of trousers”中的 “pair”决定,“a
pair”是单数,所以用 “is”。
13. 答案:has
解析:主语 “the boy”是第三人称单数,一般现在时中动词 “have”用第三人称单数形
式 “has”。
14. 答案:doesn’t like
解析:主语 “Mike”是第三人称单数,一般现在时的否定形式借助助动词 “doesn’t”,后
面动词用原形 “like”。
15. 答案:drives
解析:主语 “My father”是第三人称单数,一般现在时中动词 “drive”用第三人称单数
形式 “drives”。
16. 答案:weight
解析:“the weight of...”是固定搭配,意为 “……的重量”,“weigh”的名词形式是
“weight”。
17. 答案:farthest
解析:“from the farthest away”表示 “从最远的地方”,此处用 “far”的最高级
“farthest”。
18. 答案:mice
解析:“mouse”的复数形式是 “mice”,“some”后接复数名词。
19. 答案:strong
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解析:“强壮的”英文是 “strong”,与 “healthy”并列作表语。
20. 答案:alone
解析:“独自地”英文是 “alone”,修饰动词 “lives”。
21. 答案:recognize
解析:“认出”的英文是 “recognize”,情态动词 “can”后接动词原形。
22. 答案:research
解析:“研究”的英文是 “research”,“do research on...”是固定搭配,意为 “对……进行
研究”。
23. 答案:several
解析:“几个”的英文是 “several”,修饰可数名词复数 “shelves”。
24. 答案:creating
解析:“创作”的英文是 “create”,此处用现在进行时,“is”后接现在分词 “creating”。
25. 答案:elephants
解析:“eight”后接可数名词复数,“elephant”的复数形式是 “elephants”。
二、单项选择
26. 答案:C
解析:根据文章内容,渡渡鸟已灭绝,现在只能在博物馆看到其模型,A.印度洋;B.
森林;D.《爱丽丝梦游仙境》(书中是虚构角色),均不符合,故选 C。
27. 答案:B
解析:文中提到渡渡鸟行动缓慢且不会飞,所以无法逃离人类,A.太小;C.害怕人
类;D.喜欢人类,均不符合,故选 B。
28. 答案:C
解析:人类砍伐树木破坏了渡渡鸟的家园,A.狩猎渡渡鸟;B.吃渡渡鸟蛋;D.带来
猪和狗,均不是破坏家园的行为,故选 C。
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29. 答案:A
解析:渡渡鸟灭绝的原因包括人类狩猎、动物吃蛋、栖息地破坏,文中未提及 “缺乏
食物”,渡渡鸟过去食物充足,故选 A。
30. 答案:B
解析:结合上下文,渡渡鸟已灭绝,“die out”意为 “灭绝”,A、C、D均不符合,故选
B。
31. 答案:C
解析:根据文章,渡渡鸟过去生活在印度洋的一个岛上,A.山上;B.沙漠;D.欧洲
森林,均不符合,故选 C。
32. 答案:B
解析:人类到来前渡渡鸟过着平静安全的生活,A.危险的;C.饥饿的;D.孤独的,
均不符合,故选 B。
33. 答案:A
解析:渡渡鸟的故事告诉我们人类应保护动物,B.所有行动缓慢的动物都会灭绝(表
述绝对);C.动物应生活在博物馆;D.无需关心灭绝动物,均错误,故选 A。
34. 答案:B
解析:文中提到渡渡鸟在《爱丽丝梦游仙境》中是角色,A.猪;C.猫;D.狗,均未
提及在书中的角色,故选 B。
35. 答案:C
解析:作者通过渡渡鸟的故事想告诉我们应尽力保护现存动物,A.博物馆是保存动物
模型的好地方;B.人类比动物强大;D.拯救灭绝动物太晚了,均不符合主旨,故选
C。
三、完成句子
36. 答案:used to live
解析:“过去生活”用 “used to live”。
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37. 答案:cut down
解析:“砍伐”用 “cut down”,与 “destroyed”时态一致,用过去式。
38. 答案:Because of; died out
解析:“由于”用 “Because of”(后接名词短语);“灭绝”用 “died out”,结合 “soon”用
过去式。
39. 答案:see; museums
解析:“看到”用 “see”;“博物馆”用 “museums”(复数表泛指)。
40. 答案:remember; try your best
解析:“记住”用 “remember”;“尽最大努力”用 “try your best”。
41. 答案:were easily caught
解析:“被捕捉”用被动语态 “were caught”,“容易地”用 “easily”修饰。
42. 答案:ate dodo eggs
解析:“吃掉渡渡鸟的蛋”用 “ate dodo eggs”,用过去式。
43. 答案:plenty of
解析:“充足的”用 “plenty of”。
44. 答案:amazing animals
解析:“奇妙的动物”用 “amazing animals”(复数表泛指)。
45. 答案:have a great influence
解析:“对……产生巨大影响”用 “have a great influence on”。
四、完形填空
Passage 1
46. 答案:B
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解析:人类到来前渡渡鸟生活 “平静(peaceful)”,A.困难的;C.危险的;D.忙碌
的,均不符合,故选 B。
47. 答案:A
解析:“砍伐树木”用 “cut down”,A.切割;B.放置;C.拿;D.转变,均不构成此搭
配,故选 A。
48. 答案:C
解析:人类 “狩猎(hunt)”渡渡鸟作为食物,A.喂养;B.帮助;D.保持,均不符
合,故选 C。
49. 答案:B
解析:渡渡鸟数量 “快速(quickly)”减少,A.缓慢地;C.突然地;D.最近地,均不
符合,故选 B。
50. 答案:C
解析:人类活动使动物 “灭绝(die out)”,A.生活;B.成长;D.醒来,均不符合,故
选 C。
Passage 2
51. 答案:B
解析:岛上没有 “危险的(dangerous)”动物,渡渡鸟才感到安全,A.友好的;C.小
的;D.大的,均不符合,故选 B。
52. 答案:A
解析:人类对渡渡鸟不 “友好(kindly)”,A.友好地;B.糟糕地;C.仔细地;D.清楚
地,结合 “killed dodos”选 A。
53. 答案:B
解析:渡渡鸟无法 “保护(protect)”自己的蛋,A.找到;C.收集;D.携带,均不符
合,故选 B。
54. 答案:B
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解析:更多动物会像渡渡鸟一样 “死亡(die)”,A.生活;C.改变;D.移动,均不符
合,故选 B。
55. 答案:C
解析:灭绝动物的模型在 “博物馆(museums)”,A.学校;B.公园;D.动物园,均不
符合,故选 C。
Passage 3
56. 答案:C
解析:根据 “because he has nothing to eat”可知,老虎很 “饿(hungry)”,A.健康的;
B.疲倦的;D.抱歉的,均不符合语境,故选 C。
57. 答案:B
解析:根据后文对话可知,老虎抓住的是 “狐狸(fox)”,A.熊;C.猴子;D.狮子,
均不符合,故选 B。
58. 答案:B
解析:老虎嘴里满是长而锋利的 “牙齿(teeth)”,A.脚;C.手;D.鼻子,均不符
合,故选 B。
59. 答案:C
解析:根据故事结尾 “I shall have you for my breakfast”可知,老虎想把狐狸当 “早餐
(breakfast)”,A.午餐;B.下午茶;D.晚餐,均不符合,故选 C。
60. 答案:D
解析:狐狸被老虎抓住,感到 “害怕(afraid)”,A.聪明的;B.开心的;C.生气的,
均不符合,故选 D。
61. 答案:D
解析:狐狸 “回答(answers)”老虎的话,A.谈论;B.告诉;C.唱歌,均不符合,故
选 D。
62. 答案:A
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解析:狐狸要 “展示(show)”其他动物如何害怕自己,A.展示;B. 教;C.观看;D.
听见,均不符合,故选 A。
63. 答案:B
解析:老虎 “走(goes)”在狐狸后面,A.得到;C.跳;D.跳舞,均不符合,故选
B。
64. 答案:D
解析:动物们看到老虎,都 “跑(run)”开了,“run away”是固定搭配,意为 “逃
跑”,A.放;B.拿;C.给,均不构成此搭配,故选 D。
65. 答案:B
解析:老虎听了狐狸的话,“快速地(quickly)”离开了,A.缓慢地;C.真正地;D.
开心地,均不符合,故选 B。
五、阅读理解
Passage 1
66. 答案:B
解析:文章主要讲述渡渡鸟 “如何灭绝(how dodos became extinct)”,A.渡渡鸟在岛
上的生活(细节);C.渡渡鸟的外貌(未详细描述);D.在哪里看渡渡鸟模型(细
节),均不符合,故选 B。
67. 答案:D
解析:渡渡鸟不需要飞行且翅膀变弱,所以不会飞,A.不喜欢飞;B.没有翅膀;C.翅
膀太弱(仅部分原因),均不全面,故选 D。
68. 答案:A
解析:根据 “humans came to the island in 1598”可知,人类 1598年到达,B. 1681年
(最后一只渡渡鸟死亡时间);C. 17世纪;D.不知道,均不符合,故选 A。
69. 答案:C
解析:文中未提及 “渡渡鸟不喜欢岛上的食物”,A、B、D均是灭绝原因,故选 C。
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70. 答案:B
解析:渡渡鸟的故事告诉我们应 “保护动物和它们的栖息地”,A.建更多博物馆;C.所
有不会飞的鸟都会灭绝(表述绝对);D.人类需要狩猎动物为食,均错误,故选 B。
Passage 2
71. 答案:B
解析:渡渡鸟没有天敌,不需要逃跑,所以没发展出飞行能力,A.太重;C.不喜欢
飞;D.岛上没空间飞,均不符合,故选 B。
72. 答案:B
解析:根据 “It took less than 100 years for the entire dodo population to disappear”可知,
不到 100年,A.不到 50年;C.超过 200年;D.约 500年,均不符合,故选 B。
73. 答案:A
解析:渡渡鸟灭绝后,依赖其传播种子的植物也开始消失,B.猪和狗数量减少;C.岛
屿对其他鸟更友好;D.岛屿天气变化,均不符合,故选 A。
74. 答案:B
解析:科学家研究渡渡鸟是为了 “了解如何保护其他动物不灭绝”,A.学习制作博物馆
模型;C.了解渡渡鸟过去的食物;D.知道如何让渡渡鸟复活,均不符合,故选 B。
75. 答案:C
解析:作者的主要观点是应 “保护动物和它们的生态系统”,A.渡渡鸟是独特的鸟;B.
人类是动物灭绝的唯一原因(表述绝对);D.科学家在努力保护动物(细节),均不
符合主旨,故选 C。
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