Unit 5 The power of plants
（Developing ideas）
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. Rice, wheat and corn are the world's top three f______ plants, providing food for people
around the globe.
2. In East Asia, people often make rice n______ with rice, which is a popular food.
3. Corn silk (玉米须) is not useless; it can be used to make t______ drinks that are good for
health.
4. Using corn h______, people can create traditional crafts (手工艺品) to decorate their
homes.
5. Bamboo is a versatile (多功能的) plant. We can use it to make chairs, tables and other
f______.
6. Cotton is widely used in the fashion industry because it can be made into c______ like T-
shirts and dresses.
7. Roses are not only beautiful but also useful—their petals (花瓣) can be used to make
p______ tea.
8. When asking for permission politely, we usually use sentences like "M______ I borrow
your book about plants "
9. In Europe, bread made from w______ is a staple food (主食) for many families.
10. The vlog talked about a famous Mexican dish made from corn—t______, which is loved
by many people.
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。
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11. Which of the following is NOT one of the world's top three food plants （ ）
A. Rice B. Wheat C. Corn D. Cotton
12. How do people in East Asia usually eat rice according to the passage （ ）
A. They make it into bread B. They make it into rice noodles
C. They make it into tacos D. They make it into cakes
13. What is corn silk used for （ ）
A. Making toys B. Making food like tacos
C. Making drinks that are good for health D. Making clothes
14. Which sound does the underlined letter "a" make in the word "amazing" （ ）
A. /e / B. /a / C. / / D. / /
15. When asking for permission politely, which sentence is NOT proper （ ）
A. May I use your dictionary to look up plant names
B. Could I ask you about the uses of bamboo
C. Can I borrow your notebook about corn
D. I want to take your book—give it to me.
16. What can we make with corn husks （ ）
A. Traditional crafts B. Rice noodles C. Cotton clothes D. Rose tea
17. What is the main idea of the opening of the vlog mentioned in the passage （ ）
A. It explains the importance of corn in Mexico B. It compares corn in different countries
C. It describes a famous Mexican corn dish D. It talks about the history of corn
18. Which plant can be used to make chairs and tables （ ）
A. Rose B. Bamboo C. Cotton D. Wheat
19. When someone asks "May I use your pen to write about plant uses ", what is a polite
reply （ ）
A. No, you can't B. Certainly C. I don't know D. Hurry up
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20. What is cotton used to make in the fashion industry （ ）
A. Drinks B. Crafts C. Clothes D. Food
三、完成句子
根据句意及提示，补全句子，使句意完整通顺。
21. 大米、小麦和玉米是世界三大粮食作物。
Rice, wheat and corn are ______ ______ ______ ______ food plants in the world.
22. 在美洲，人们通常用玉米制作墨西哥卷饼。
In the Americas, people usually ______ corn ______ ______.
23. 玉米须可以用来制作对健康有益的饮品。
Corn silk can ______ ______ ______ ______ that are good for health.
24. 当请求许可时，我们可以说 “我能向你请教竹子的用途吗？”
When asking for permission, we can say "______ ______ ______ you about the uses of
bamboo "
25. 玫瑰不仅可以观赏，还能用来泡茶。
Roses can ______ ______ ______ for decoration, and they can also ______ ______ ______
make tea.
26. 用玉米壳，我们可以制作传统手工艺品。
______ ______ ______, we can make traditional crafts.
27. 欧洲人常吃用小麦做的面包。
People in Europe often eat bread ______ ______ ______.
28. 你能告诉我棉花有哪些用途吗？
______ ______ ______ me the uses of cotton
29. 这个视频博客介绍了一道著名的墨西哥玉米菜肴。
The vlog ______ ______ ______ ______ Mexican corn dish.
30. 竹子是一种有用的植物，我们可以用它制作很多东西。
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Bamboo is a useful plant, and we ______ ______ ______ ______ many things.
31. ——做完所有那些艰苦的工作，你一定很累了。
——是的，我要好好休息一下。
—You must be very tired after finishing all of those hard jobs.
—Yes. I’ll ______ ______ ______ ______.
32. 互联网对快速查找信息很有用。
The Internet ______ ______ ______ finding information quickly.
33. 除了水，世界上最受欢迎的饮料是什么？
What is ______ ______ ______ ______ in the world after water
34. 如果你觉得很疲惫，你可以停下工作休息一下。
If you feel very tired, you can stop working to ______ ______ ______.
35. 将来会有更少的污染。
______ ______ ______ less pollution in the future.
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
Plants are more useful than we think. They provide us with food, drinks and even materials
for making things. The world's top three food plants are rice, wheat and corn. People in
different countries eat them in 36. ______ ways. For example, in East Asia, rice is made into
rice noodles. In Europe, wheat is used to make bread. In the Americas, corn is a key
ingredient (原料) for tacos.
But plants are not just for food. Corn has many other uses. Corn silk can be made into drinks
that are good for our 37. ______. Corn husks are also useful—people use them to make
traditional crafts. Bamboo is another versatile plant. It can be made into furniture like chairs
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and tables. Cotton is loved by the fashion industry because it can be turned into comfortable
clothes.
When we want to learn more about plant uses, we can ask others for help politely. We can
say, "May I borrow your book about plants " or "Could you tell me how to use roses " Most
people will reply "38. ______" or "Sure" to show they agree. Learning about plant uses not
only helps us know more about nature but also teaches us to be polite when asking for help.
36. A. same B. different C. difficult D. easy （ ）
37. A. health B. work C. study D. play （ ）
38. A. No B. Never C. Certainly D. Maybe （ ）
Passage 2
A vlog about Mexican food is very popular online. The opening of the vlog 39. ______ a
famous Mexican dish—tacos. Tacos are made from corn, which is an important food in
Mexico. The vlog also mentions other uses of corn. For example, corn silk can be used to
make drinks, and corn husks can be used to make crafts.
After watching the vlog, Lisa wants to know more about corn. She goes to her teacher and
says, "40. ______ I ask you some questions about corn " The teacher smiles and replies, "Of
course. Go ahead." Lisa asks, "What else can corn be used for " The teacher answers, "Corn
can also be made into popcorn (爆米花), which is a popular snack."
Lisa learns a lot from the teacher. She realizes that plants have many amazing uses. Next time,
when she wants to borrow a book about plants from her classmate, she will say, "41. ______
you lend me your book about plants " She knows being polite is important when asking for
permission.
39. A. describes B. sells C. buys D. hides （ ）
40. A. Must B. Should C. May D. Will （ ）
41. A. Need B. Could C. Must D. Should （ ）
Passage 3
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Do you know that plants are super (超级) cool They can grow from small 42. ______into
big trees or beautiful flowers. 43. ______are all around us and we can see them here and
there.
My favorite plants are roses and bamboo. Roses 44. ______many kinds of colors like red,
pink, white and so on. They 45. ______wonderful and make me feel happy. You must know
that the rose is the symbol (象征) of 46. ______. Bamboo is tall and strong. It can live for a
long time. No matter (无论) in warm spring or cold 47. ______, it is always green and
straight.
Plants don't just look nice. They also give us air to 48. ______and food to eat. Fruit,
vegetables, rice, 49. ______and noodles all come from plants. Some other plants can be used
for 50. ______care (治疗), such as radix isatidis (板蓝根) and ginseng (人参). So we can't
live 51. ______ plants. We are lucky to have such wonderful plants on our earth.
42. A. seeds B. leaves C. flowers D. grass （ ）
43. A. Animals B. Trees C. People D. Plants （ ）
44. A. take B. give C. have D. hold （ ）
45. A. taste B. smell C. feel D. sound （ ）
46. A. love B. laughter C. smile D. joy （ ）
47. A. spring B. summer C. autumn D. winter （ ）
48. A. drink B. breathe C. exercise D. dance （ ）
49. A. tea B. coffee C. bread D. water （ ）
50. A. careful B. electric C. peaceful D. medical （ ）
51. A. with B. without C. on D. from （ ）
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
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The Many Uses of Common Plants
Plants are an important part of our daily lives. They give us food, drinks and materials to
make different things. Let's look at some common plants and their uses.
First, let's talk about the world's top three food plants: rice, wheat and corn. In East Asia,
people love rice noodles made from rice. These noodles are often served with vegetables and
meat. In Europe, wheat is the main ingredient for bread. Families eat bread for breakfast,
lunch and even dinner. In the Americas, corn is used to make tacos. Tacos are a famous dish
with corn shells filled with meat, cheese and vegetables.
But these plants are not just for eating. Corn has more uses. Corn silk, the thin threads on
corn, can be boiled to make a drink. Many people say this drink is good for health. Corn
husks, the outer covering of corn, are used to make traditional crafts like small baskets.
Other plants are useful too. Bamboo is strong and can be made into furniture such as chairs
and tables. Cotton is soft and is turned into clothes like T-shirts and jeans. Roses are beautiful,
but they can also be used to make tea. The petals of roses are dried and then brewed (冲泡)
with hot water.
When we want to learn more about plant uses, we should ask for help politely. We can use
questions like "May I borrow your plant book " or "Could you tell me about bamboo uses "
People will be happy to help if we are polite.
52. What are the world's top three food plants （ ）
A. Rice, wheat and cotton B. Rice, wheat and corn
C. Rice, corn and bambooD. Wheat, corn and rose
53. How do people in East Asia use rice （ ）
A. They make it into bread B. They make it into tacos
C. They make it into rice noodles D. They make it into popcorn
54. What is corn silk used for （ ）
A. Making small baskets B. Making a healthy drink
C. Making T-shirts D. Making tea
55. Which plant is used to make furniture like chairs （ ）
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A. Bamboo B. Cotton C. Rose D. Wheat
56. What should we do when asking for help about plant uses （ ）
A. Shout loudly B. Be polite C. Ask quickly D. Do nothing
Passage 2
The Vlog About Corn
Last week, I watched a vlog about corn. It was very interesting and taught me a lot about this
common plant.
The opening of the vlog talked about a famous Mexican dish—tacos. The vlogger showed
how to make tacos with corn shells. She said corn is very important in Mexico because many
traditional dishes use corn. I didn't know that before!
Then the vlog mentioned other uses of corn. I was surprised to learn that corn silk can be
used to make drinks. The vlogger said the drink is good for our bodies. She also showed
crafts made from corn husks, like small dolls and baskets. They looked very beautiful.
After watching the vlog, I wanted to know more about corn. I went to my mom and said,
"May I ask you some questions about corn " Mom said, "Certainly! What do you want to
know " I asked, "Can corn be used to make other foods " Mom told me corn can also be
made into corn chips and popcorn. I love popcorn, so that was exciting to hear.
I also learned that asking for permission politely is important. The vlog reminded viewers to
use "May I..." or "Could I..." when asking for help. Now, when I want to borrow my friend's
book about plants, I say, "Could I borrow your plant book " My friend is always happy to
lend it to me.
This vlog was great. It taught me about the uses of corn and how to be polite. I want to watch
more vlogs about plants!
57. What did the opening of the vlog talk about （ ）
A. How to grow corn B. A famous Mexican corn dish—tacos
C. The history of corn in Europe D. How to make corn silk drinks
58. Why is corn important in Mexico （ ）
A. Because it can be made into popcorn
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B. Because many traditional dishes use corn
C. Because it is used to make clothes
D. Because it is the only food in Mexico
59. What did the vlogger show that was made from corn husks （ ）
A. Small dolls and baskets B. T-shirts and jeans
C. Rice noodles and bread D. Tea and coffee
60. What did the writer's mom say corn can be made into （ ）
A. Furniture and crafts B. Corn chips and popcorn
C. Drinks and dolls D. Shells and tea
61. What did the writer learn about asking for permission （ ）
A. To shout when asking B. To use "May I..." or "Could I..."
C. To ask without saying anything D. To ask only once
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答案及解析
一、单词拼写
1. 答案：food
解析：大米、小麦和玉米是世界三大 “粮食（food）”作物，修饰 “plants”用名词作定
语。
2. 答案：noodles
解析：在东亚，人们常用大米做 “面条（noodles）”，常用复数形式。
3. 答案：traditional
解析：玉米须可用来制作 “传统的（traditional）”饮品，修饰 “drinks”用形容词。
4. 答案：husks
解析：用玉米 “壳（husks）”可制作传统手工艺品，“husk”是可数名词，用复数表泛
指。
5. 答案：furniture
解析：竹子可用来制作椅子、桌子等 “家具（furniture）”，“furniture”是不可数名词。
6. 答案：clothes
解析：棉花可制成 “衣服（clothes）”，如 T恤和连衣裙，常用复数形式。
7. 答案：perfumed
解析：玫瑰花瓣可用来制作 “芳香的（perfumed）”茶，修饰 “tea”用形容词。
8. 答案：May
解析：请求许可时常用 “May I... ”，句首首字母大写。
9. 答案：wheat
解析：欧洲的面包常用 “小麦（wheat）”制成，“wheat”是不可数名词。
10. 答案：tacos
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解析：视频博客提到了墨西哥的 “墨西哥卷饼（tacos）”，常用复数形式。
二、单项选择
11. 答案：D
解析：文中明确提到世界三大粮食作物是大米、小麦和玉米，棉花（Cotton）不是，A.
大米；B.小麦；C.玉米，均是三大粮食作物，故选 D。
12. 答案：B
解析：根据 “For example, rice noodles in East Asia”可知，东亚人用大米做米粉，A.做
成面包；C.做成墨西哥卷饼；D.做成蛋糕，均不符合，故选 B。
13. 答案：C
解析：文中提到 “Corn silk is used to make... It is good for your”，结合常识可知玉米须用
于制作有益健康的饮品，A.做玩具；B.做墨西哥卷饼等食物；D.做衣服，均不符
合，故选 C。
14. 答案：A
解析：“amazing”中 “a”的发音是 /e /，对应文中 “/e /amazing play”，B. /a /（如
“size”）；C. / /（如 “toy”）；D. / /（如 “cat”），均不符合，故选 A。
15. 答案：D
解析：D选项 “我想要你的书，给我”语气不礼貌，不符合请求许可的礼貌表达，A、
B、C均是礼貌的请求句式，故选 D。
16. 答案：A
解析：根据 “Using corn husks, we can make traditionals”可知，玉米壳用于制作传统手
工艺品，B.米粉；C.棉衣服；D.玫瑰茶，均不符合，故选 A。
17. 答案：C
解析：文中提到 “Listen to the opening of the vlog and choose the main idea... c It describes
a famous Mexican corn dish”，可知视频开头介绍墨西哥玉米菜肴，A.解释玉米在墨西
哥的重要性；B.比较不同国家的玉米；D.谈论玉米历史，均不符合，故选 C。
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18. 答案：B
解析：竹子（Bamboo）可用于制作桌椅，A.玫瑰；C.棉花；D.小麦，均不符合，故
选 B。
19. 答案：B
解析：“May I... ”的礼貌回应是 “Certainly”（当然可以），A.不，你不能（不礼
貌）；C.我不知道；D.快点，均不符合，故选 B。
20. 答案：C
解析：根据 “Cotton... can be made into clothes like T-shirts and dresses”可知，棉花用于
做衣服，A.做饮品；B.做手工艺品；D.做食物，均不符合，故选 C。
三、完成句子
21. 答案：the world's top three
解析：“世界三大”对应固定表达 “the world's top three”，其中 “world's”是名词所有
格，修饰 “top three”，整体作定语修饰 “food plants”，符合句子 “大米、小麦和玉米是
世界三大粮食作物”的语义。
22. 答案：make; into tacos
解析：“把……制成……”用固定搭配 “make... into...”，句子主语 “people”是复数，且
描述客观事实用一般现在时，故 “make”用原形；“墨西哥卷饼”是 “taco”，常用复数形
式 “tacos”表泛指，符合 “用玉米制作墨西哥卷饼”的语境。
23. 答案：be used to make drinks
解析：“被用来制作”用被动语态 “be used to make”，情态动词 “can”后接动词原形，故
“be”用原形；“饮品”是 “drink”，此处表泛指用复数 “drinks”，与 “that are good for
health”的复数定语从句呼应，符合 “玉米须制作有益健康的饮品”的语义。
24. 答案：Could I ask
解析：请求许可的礼貌表达常用 “Could I... ”，“向某人请教”是 “ask sb. about...”，
“Could I ask you about...”符合 “我能向你请教竹子的用途吗？”的礼貌语气和语义，比
“May I...”更委婉，适合日常请求场景。
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25. 答案：not only be used; be used to
解析：“不仅……还……”用 “not only... but also...”，前半句 “被用于观赏”是被动语态
“be used for decoration”，“not only”后接情态动词 “can”的原形 “be”；后半句 “被用来
泡茶”用 “be used to make tea”，“be used to do sth.”表示 “被用来做某事”，与前半句结
构呼应，符合句子语义。
26. 答案：Using corn husks
解析：“用玉米壳”在句中作方式状语，用现在分词短语 “Using corn husks”，“use”与
逻辑主语 “we”是主动关系，故用现在分词；“玉米壳”是 “corn husk”，表泛指用复数
“husks”，符合 “用玉米壳制作传统手工艺品”的语境。
27. 答案：made from wheat
解析：“用小麦做的”作后置定语修饰 “bread”，“面包由小麦制成（能看出原材料）”
用 “made from wheat”，过去分词短语 “made from...”表被动，“wheat”是不可数名词，
符合 “欧洲人吃小麦做的面包”的语义。
28. 答案：Could you tell
解析：请求对方告知信息的礼貌表达是 “Could you tell me... ”，“Could you tell”后接宾
语 “me”，符合 “你能告诉我棉花的用途吗？”的委婉语气，比 “Can you tell”更礼貌，
适合日常交流场景。
29. 答案：introduces a famous
解析：“介绍”用动词 “introduce”，主语 “The vlog”是第三人称单数，描述客观事实用
一般现在时，故 “introduce”用 “introduces”；“一道著名的”是 “a famous”，修饰可数名
词单数 “Mexican corn dish”，符合 “视频博客介绍著名墨西哥玉米菜肴”的语义。
30. 答案：can use it to make
解析：“可以用它制作”用 “can use it to make”，情态动词 “can”后接动词原形 “use”，
“use sth. to make sth.”是固定搭配，“it”指代 “bamboo”，符合 “用竹子制作很多东西”
的语境，语法结构正确。
31. 答案：have a good rest
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解析：“好好休息一下”的固定表达是 “have a good rest”，“will”后接动词原形，所以填
“have a good rest”。
32. 答案：is useful for
解析：“对……有用”的固定搭配是 “be useful for”，主语 “The Internet”是第三人称单
数，一般现在时中 “be”动词用 “is”，所以填 “is useful for”。
33. 答案：the most popular drink
解析：“最受欢迎的饮料”用 “the most popular drink”，“popular”是多音节形容词，最高
级形式为 “most popular”，前面加 “the”，所以填 “the most popular drink”。
34. 答案：have a rest
解析：“休息一下”的固定表达是 “have a rest”，“to”后接动词原形（不定式作目的状
语），所以填 “have a rest”。
35. 答案：There will be
解析：“将来会有”用 “there be”句型的一般将来时 “there will be”，句首首字母大写，
所以填 “There will be”。
四、完形填空
Passage 1
36. 答案：B
解析：根据后文 “East Asia（做米粉）、Europe（做面包）、Americas（做墨西哥卷
饼）”可知，不同国家的人用 “不同的（different）”方式吃三大粮食作物，A.相同
的；C.困难的；D.容易的，均不符合语境，故选 B。
37. 答案：A
解析：文中提到 “Corn silk can be made into drinks that are good for our...”，结合常识可
知玉米须饮品对 “健康（health）”有益，B.工作；C.学习；D.玩耍，均不符合语义，
故选 A。
38. 答案：C
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解析：前文提到礼貌请求帮助，此处 “Most people will reply... or 'Sure'”，“Certainly
（当然可以）”与 “Sure”语义相近，表同意，A.不；B.从不；D.可能，均不符合 “同
意请求”的语境，故选 C。
Passage 2
39. 答案：A
解析：根据 “The opening of the vlog... a famous Mexican dish—tacos”可知，视频开头
“描述（describes）”墨西哥卷饼这道菜，B.售卖；C.购买；D.隐藏，均不符合 “视频
内容介绍”的语境，故选 A。
40. 答案：C
解析：请求许可的礼貌表达用 “May I... ”，“May I ask you some questions”表示 “我能
问你一些问题吗？”，A.必须；B.应该；D.将要，均不符合 “请求许可”的语气，故选
C。
41. 答案：B
解析：借东西的礼貌表达用 “Could you lend me... ”，“Could”表委婉请求，A.需要；C.
必须；D.应该，均不符合 “请求借东西”的语境，故选 B。
Passage 3
42. 答案：A
解析：植物是从 “种子（seeds）”生长成大树或花朵的，B.树叶；C.花朵；D.草，均
不符合植物生长的逻辑，故选 A。
43. 答案：D
解析：文章主题是 “植物（Plants）”，它们遍布我们周围，A.动物；B.树木；C.人
类，均不符合语境，故选 D。
44. 答案：C
解析：玫瑰 “有（have）”多种颜色，A.拿走；B.给予；D.握住，均不符合 “颜色种
类”的语义，故选 C。
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45. 答案：B
解析：玫瑰 “闻起来（smell）”很香，让人心情愉悦，A.尝起来；C.感觉；D.听起
来，均不符合玫瑰的特性，故选 B。
46. 答案：A
解析：玫瑰是 “爱（love）”的象征，这是常识，B.笑声；C.微笑；D.欢乐，均不符
合玫瑰的象征意义，故选 A。
47. 答案：D
解析：与 “warm spring”对应的是 “cold winter（寒冷的冬天）”，A.春天；B.夏天；C.
秋天，均不符合 “冷暖对比”的语境，故选 D。
48. 答案：B
解析：植物提供我们 “呼吸（breathe）”的空气，A.喝；C.锻炼；D.跳舞，均不符合
“空气”的用途，故选 B。
49. 答案：C
解析：面包（bread）由小麦制成，属于植物产物，A.茶（植物但此处与 “rice,
noodles”的主食类衔接更弱）；B.咖啡（非植物主食）；D.水（非植物），均不符
合，故选 C。
50. 答案：D
解析：板蓝根、人参用于 “医疗（medical）”治疗，A.仔细的；B.电的；C.和平的，
均不符合 “治疗”的语义，故选 D。
51. 答案：B
解析：我们 “没有（without）”植物就无法生存，A.有；C.在……上；D.来自，均不
符合逻辑，故选 B。
五、阅读理解
Passage 1
52. 答案：B
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解析：根据 “First, let's talk about the world's top three food plants: rice, wheat and corn”可
知，世界三大粮食作物是大米、小麦和玉米，A.棉花；C.竹子；D.玫瑰，均不属于
三大粮食作物，故选 B。
53. 答案：C
解析：根据 “In East Asia, people love rice noodles made from rice”可知，东亚人用大米
做 “米粉（rice noodles）”，A.做面包（欧洲用小麦）；B.做墨西哥卷饼（美洲用玉
米）；D.做爆米花（文中未提东亚），均不符合，故选 C。
54. 答案：B
解析：根据 “Corn silk... can be boiled to make a drink. Many people say this drink is good
for health”可知，玉米须用于制作 “有益健康的饮品（a healthy drink）”，A.做篮子
（玉米壳）；C.做 T恤（棉花）；D.做茶（玫瑰），均不符合，故选 B。
55. 答案：A
解析：根据 “Bamboo is strong and can be made into furniture such as chairs and tables”可
知，“竹子（Bamboo）”用于制作桌椅，B.棉花（做衣服）；C.玫瑰（做茶 /观
赏）；D.小麦（做面包），均不符合，故选 A。
56. 答案：B
解析：根据 “When we want to learn more about plant uses, we should ask for help politely”
可知，请教植物用途时要 “礼貌（Be polite）”，A.大声喊；C.快速问；D.不做任何
事，均不符合，故选 B。
Passage 2
57. 答案：B
解析：根据 “The opening of the vlog talked about a famous Mexican dish—tacos”可知，
视频开头谈论 “墨西哥著名玉米菜肴——墨西哥卷饼（tacos）”，A.种玉米；C.欧洲
玉米历史；D.做玉米须饮品，均不符合，故选 B。
58. 答案：B
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解析：根据 “corn is very important in Mexico because many traditional dishes use corn”可
知，玉米在墨西哥重要是因为 “很多传统菜肴用玉米”，A.做爆米花；C.做衣服；D.
唯一食物（文中未提 “唯一”），均不符合，故选 B。
59. 答案：A
解析：根据 “She also showed crafts made from corn husks, like small dolls and baskets”可
知，玉米壳制作 “小玩偶和篮子（small dolls and baskets）”，B. T恤牛仔裤（棉花）；
C.米粉面包（大米、小麦）；D.茶和咖啡（玫瑰、咖啡豆），均不符合，故选 A。
60. 答案：B
解析：根据 “Mom told me corn can also be made into corn chips and popcorn”可知，妈妈
说玉米能做 “玉米片和爆米花（corn chips and popcorn）”，A.家具手工艺品（竹子、
玉米壳）；C.饮品玩偶（玉米须、玉米壳）；D.壳和茶（玉米壳、玫瑰），均不符
合，故选 B。
61. 答案：B
解析：根据 “The vlog reminded viewers to use 'May I...' or 'Could I...' when asking for
help”可知，作者学会请求许可时用 “May I...或 Could I...”，A.大声喊；C.不说话；D.
只问一次，均不符合，故选 B。
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21 世纪教育网()
Unit 5 The power of plants
（Developing ideas）
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。
Rice, wheat and corn are the world's top three f______ plants, providing food for people around the globe.
In East Asia, people often make rice n______ with rice, which is a popular food.
Corn silk (玉米须) is not useless; it can be used to make t______ drinks that are good for health.
Using corn h______, people can create traditional crafts (手工艺品) to decorate their homes.
Bamboo is a versatile (多功能的) plant. We can use it to make chairs, tables and other f______.
Cotton is widely used in the fashion industry because it can be made into c______ like T-shirts and dresses.
Roses are not only beautiful but also useful—their petals (花瓣) can be used to make p______ tea.
When asking for permission politely, we usually use sentences like "M______ I borrow your book about plants "
In Europe, bread made from w______ is a staple food (主食) for many families.
The vlog talked about a famous Mexican dish made from corn—t______, which is loved by many people.
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。
Which of the following is NOT one of the world's top three food plants （ ）
A. Rice B. Wheat C. Corn D. Cotton
How do people in East Asia usually eat rice according to the passage （ ）
A. They make it into bread B. They make it into rice noodles
C. They make it into tacos D. They make it into cakes
What is corn silk used for （ ）
A. Making toys B. Making food like tacos
C. Making drinks that are good for health D. Making clothes
Which sound does the underlined letter "a" make in the word "amazing" （ ）
A. /e / B. /a / C. / / D. / /
When asking for permission politely, which sentence is NOT proper （ ）
A. May I use your dictionary to look up plant names
B. Could I ask you about the uses of bamboo
C. Can I borrow your notebook about corn
D. I want to take your book—give it to me.
What can we make with corn husks （ ）
A. Traditional crafts B. Rice noodles C. Cotton clothes D. Rose tea
What is the main idea of the opening of the vlog mentioned in the passage （ ）
A. It explains the importance of corn in Mexico B. It compares corn in different countries
C. It describes a famous Mexican corn dish D. It talks about the history of corn
Which plant can be used to make chairs and tables （ ）
A. Rose B. Bamboo C. Cotton D. Wheat
When someone asks "May I use your pen to write about plant uses ", what is a polite reply （ ）
A. No, you can't B. Certainly C. I don't know D. Hurry up
What is cotton used to make in the fashion industry （ ）
A. Drinks B. Crafts C. Clothes D. Food
三、完成句子
根据句意及提示，补全句子，使句意完整通顺。
大米、小麦和玉米是世界三大粮食作物。
Rice, wheat and corn are ______ ______ ______ ______ food plants in the world.
在美洲，人们通常用玉米制作墨西哥卷饼。
In the Americas, people usually ______ corn ______ ______.
玉米须可以用来制作对健康有益的饮品。
Corn silk can ______ ______ ______ ______ that are good for health.
当请求许可时，我们可以说 “我能向你请教竹子的用途吗？”
When asking for permission, we can say "______ ______ ______ you about the uses of bamboo "
玫瑰不仅可以观赏，还能用来泡茶。
Roses can ______ ______ ______ for decoration, and they can also ______ ______ ______ make tea.
用玉米壳，我们可以制作传统手工艺品。
______ ______ ______, we can make traditional crafts.
欧洲人常吃用小麦做的面包。
People in Europe often eat bread ______ ______ ______.
你能告诉我棉花有哪些用途吗？
______ ______ ______ me the uses of cotton
这个视频博客介绍了一道著名的墨西哥玉米菜肴。
The vlog ______ ______ ______ ______ Mexican corn dish.
竹子是一种有用的植物，我们可以用它制作很多东西。
Bamboo is a useful plant, and we ______ ______ ______ ______ many things.
—— 做完所有那些艰苦的工作，你一定很累了。
—— 是的，我要好好休息一下。
—You must be very tired after finishing all of those hard jobs.
—Yes. I’ll ______ ______ ______ ______.
互联网对快速查找信息很有用。
The Internet ______ ______ ______ finding information quickly.
除了水，世界上最受欢迎的饮料是什么？
What is ______ ______ ______ ______ in the world after water
如果你觉得很疲惫，你可以停下工作休息一下。
If you feel very tired, you can stop working to ______ ______ ______.
将来会有更少的污染。
______ ______ ______ less pollution in the future.
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
Plants are more useful than we think. They provide us with food, drinks and even materials for making things. The world's top three food plants are rice, wheat and corn. People in different countries eat them in 36. ______ ways. For example, in East Asia, rice is made into rice noodles. In Europe, wheat is used to make bread. In the Americas, corn is a key ingredient (原料) for tacos.
But plants are not just for food. Corn has many other uses. Corn silk can be made into drinks that are good for our 37. ______. Corn husks are also useful—people use them to make traditional crafts. Bamboo is another versatile plant. It can be made into furniture like chairs and tables. Cotton is loved by the fashion industry because it can be turned into comfortable clothes.
When we want to learn more about plant uses, we can ask others for help politely. We can say, "May I borrow your book about plants " or "Could you tell me how to use roses " Most people will reply "38. ______" or "Sure" to show they agree. Learning about plant uses not only helps us know more about nature but also teaches us to be polite when asking for help.
A. same B. different C. difficult D. easy （ ）
A. health B. work C. study D. play （ ）
A. No B. Never C. Certainly D. Maybe （ ）
Passage 2
A vlog about Mexican food is very popular online. The opening of the vlog 39. ______ a famous Mexican dish—tacos. Tacos are made from corn, which is an important food in Mexico. The vlog also mentions other uses of corn. For example, corn silk can be used to make drinks, and corn husks can be used to make crafts.
After watching the vlog, Lisa wants to know more about corn. She goes to her teacher and says, "40. ______ I ask you some questions about corn " The teacher smiles and replies, "Of course. Go ahead." Lisa asks, "What else can corn be used for " The teacher answers, "Corn can also be made into popcorn (爆米花), which is a popular snack."
Lisa learns a lot from the teacher. She realizes that plants have many amazing uses. Next time, when she wants to borrow a book about plants from her classmate, she will say, "41. ______ you lend me your book about plants " She knows being polite is important when asking for permission.
A. describes B. sells C. buys D. hides （ ）
A. Must B. Should C. May D. Will （ ）
A. Need B. Could C. Must D. Should （ ）
Passage 3
Do you know that plants are super (超级) cool They can grow from small 42. ______into big trees or beautiful flowers. 43. ______are all around us and we can see them here and there.
My favorite plants are roses and bamboo. Roses 44. ______many kinds of colors like red, pink, white and so on. They 45. ______wonderful and make me feel happy. You must know that the rose is the symbol (象征) of 46. ______. Bamboo is tall and strong. It can live for a long time. No matter (无论) in warm spring or cold 47. ______, it is always green and straight.
Plants don't just look nice. They also give us air to 48. ______and food to eat. Fruit, vegetables, rice, 49. ______and noodles all come from plants. Some other plants can be used for 50. ______care (治疗), such as radix isatidis (板蓝根) and ginseng (人参). So we can't live 51. ______ plants. We are lucky to have such wonderful plants on our earth.
A. seeds　　 B. leaves　　 C. flowers　　 D. grass （ ）
A. Animals　 B. Trees　　 C. People　　 D. Plants （ ）
A. take　　　 B. give　　 C. have　　　 D. hold （ ）
A. taste　　　 B. smell　　 C. feel　　　 D. sound （ ）
A. love　　　 B. laughter　 C. smile　　 D. joy （ ）
A. spring　　 B. summer　　 C. autumn　　 D. winter （ ）
A. drink　　　 B. breathe　 C. exercise　 D. dance （ ）
A. tea　　　 B. coffee　　 C. bread　　 D. water （ ）
A. careful　　 B. electric　 C. peaceful　 D. medical （ ）
A. with　　　 B. without　 C. on　　　 D. from （ ）
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 Many Uses of Common Plants
Plants are an important part of our daily lives. They give us food, drinks and materials to make different things. Let's look at some common plants and their uses.
First, let's talk about the world's top three food plants: rice, wheat and corn. In East Asia, people love rice noodles made from rice. These noodles are often served with vegetables and meat. In Europe, wheat is the main ingredient for bread. Families eat bread for breakfast, lunch and even dinner. In the Americas, corn is used to make tacos. Tacos are a famous dish with corn shells filled with meat, cheese and vegetables.
But these plants are not just for eating. Corn has more uses. Corn silk, the thin threads on corn, can be boiled to make a drink. Many people say this drink is good for health. Corn husks, the outer covering of corn, are used to make traditional crafts like small baskets.
Other plants are useful too. Bamboo is strong and can be made into furniture such as chairs and tables. Cotton is soft and is turned into clothes like T-shirts and jeans. Roses are beautiful, but they can also be used to make tea. The petals of roses are dried and then brewed (冲泡) with hot water.
When we want to learn more about plant uses, we should ask for help politely. We can use questions like "May I borrow your plant book " or "Could you tell me about bamboo uses " People will be happy to help if we are polite.
What are the world's top three food plants （ ）
A. Rice, wheat and cotton B. Rice, wheat and corn
C. Rice, corn and bamboo D. Wheat, corn and rose
How do people in East Asia use rice （ ）
A. They make it into bread B. They make it into tacos
C. They make it into rice noodles D. They make it into popcorn
What is corn silk used for （ ）
A. Making small baskets B. Making a healthy drink
C. Making T-shirts D. Making tea
Which plant is used to make furniture like chairs （ ）
A. Bamboo B. Cotton C. Rose D. Wheat
What should we do when asking for help about plant uses （ ）
A. Shout loudly B. Be polite C. Ask quickly D. Do nothing
Passage 2
The Vlog About Corn
Last week, I watched a vlog about corn. It was very interesting and taught me a lot about this common plant.
The opening of the vlog talked about a famous Mexican dish—tacos. The vlogger showed how to make tacos with corn shells. She said corn is very important in Mexico because many traditional dishes use corn. I didn't know that before!
Then the vlog mentioned other uses of corn. I was surprised to learn that corn silk can be used to make drinks. The vlogger said the drink is good for our bodies. She also showed crafts made from corn husks, like small dolls and baskets. They looked very beautiful.
After watching the vlog, I wanted to know more about corn. I went to my mom and said, "May I ask you some questions about corn " Mom said, "Certainly! What do you want to know " I asked, "Can corn be used to make other foods " Mom told me corn can also be made into corn chips and popcorn. I love popcorn, so that was exciting to hear.
I also learned that asking for permission politely is important. The vlog reminded viewers to use "May I..." or "Could I..." when asking for help. Now, when I want to borrow my friend's book about plants, I say, "Could I borrow your plant book " My friend is always happy to lend it to me.
This vlog was great. It taught me about the uses of corn and how to be polite. I want to watch more vlogs about plants!
What did the opening of the vlog talk about （ ）
A. How to grow corn B. A famous Mexican corn dish—tacos
C. The history of corn in Europe D. How to make corn silk drinks
Why is corn important in Mexico （ ）
A. Because it can be made into popcorn
B. Because many traditional dishes use corn
C. Because it is used to make clothes
D. Because it is the only food in Mexico
What did the vlogger show that was made from corn husks （ ）
A. Small dolls and baskets B. T-shirts and jeans
C. Rice noodles and bread D. Tea and coffee
What did the writer's mom say corn can be made into （ ）
A. Furniture and crafts B. Corn chips and popcorn
C. Drinks and dolls D. Shells and tea
What did the writer learn about asking for permission （ ）
A. To shout when asking B. To use "May I..." or "Could I..."
C. To ask without saying anything D. To ask only once
答案及解析
一、单词拼写
答案：food
解析：大米、小麦和玉米是世界三大 “粮食（food）” 作物，修饰 “plants” 用名词作定语。
答案：noodles
解析：在东亚，人们常用大米做 “面条（noodles）”，常用复数形式。
答案：traditional
解析：玉米须可用来制作 “传统的（traditional）” 饮品，修饰 “drinks” 用形容词。
答案：husks
解析：用玉米 “壳（husks）” 可制作传统手工艺品，“husk” 是可数名词，用复数表泛指。
答案：furniture
解析：竹子可用来制作椅子、桌子等 “家具（furniture）”，“furniture” 是不可数名词。
答案：clothes
解析：棉花可制成 “衣服（clothes）”，如 T 恤和连衣裙，常用复数形式。
答案：perfumed
解析：玫瑰花瓣可用来制作 “芳香的（perfumed）” 茶，修饰 “tea” 用形容词。
答案：May
解析：请求许可时常用 “May I... ”，句首首字母大写。
答案：wheat
解析：欧洲的面包常用 “小麦（wheat）” 制成，“wheat” 是不可数名词。
答案：tacos
解析：视频博客提到了墨西哥的 “墨西哥卷饼（tacos）”，常用复数形式。
二、单项选择
答案：D
解析：文中明确提到世界三大粮食作物是大米、小麦和玉米，棉花（Cotton）不是，A. 大米；B. 小麦；C. 玉米，均是三大粮食作物，故选 D。
答案：B
解析：根据 “For example, rice noodles in East Asia” 可知，东亚人用大米做米粉，A. 做成面包；C. 做成墨西哥卷饼；D. 做成蛋糕，均不符合，故选 B。
答案：C
解析：文中提到 “Corn silk is used to make... It is good for your”，结合常识可知玉米须用于制作有益健康的饮品，A. 做玩具；B. 做墨西哥卷饼等食物；D. 做衣服，均不符合，故选 C。
答案：A
解析：“amazing” 中 “a” 的发音是 /e /，对应文中 “/e /amazing play”，B. /a /（如 “size”）；C. / /（如 “toy”）；D. / /（如 “cat”），均不符合，故选 A。
答案：D
解析：D 选项 “我想要你的书，给我” 语气不礼貌，不符合请求许可的礼貌表达，A、B、C 均是礼貌的请求句式，故选 D。
答案：A
解析：根据 “Using corn husks, we can make traditionals” 可知，玉米壳用于制作传统手工艺品，B. 米粉；C. 棉衣服；D. 玫瑰茶，均不符合，故选 A。
答案：C
解析：文中提到 “Listen to the opening of the vlog and choose the main idea... c It describes a famous Mexican corn dish”，可知视频开头介绍墨西哥玉米菜肴，A. 解释玉米在墨西哥的重要性；B. 比较不同国家的玉米；D. 谈论玉米历史，均不符合，故选 C。
答案：B
解析：竹子（Bamboo）可用于制作桌椅，A. 玫瑰；C. 棉花；D. 小麦，均不符合，故选 B。
答案：B
解析：“May I... ” 的礼貌回应是 “Certainly”（当然可以），A. 不，你不能（不礼貌）；C. 我不知道；D. 快点，均不符合，故选 B。
答案：C
解析：根据 “Cotton... can be made into clothes like T-shirts and dresses” 可知，棉花用于做衣服，A. 做饮品；B. 做手工艺品；D. 做食物，均不符合，故选 C。
三、完成句子
答案：the world's top three
解析：“世界三大” 对应固定表达 “the world's top three”，其中 “world's” 是名词所有格，修饰 “top three”，整体作定语修饰 “food plants”，符合句子 “大米、小麦和玉米是世界三大粮食作物” 的语义。
答案：make; into tacos
解析：“把…… 制成……” 用固定搭配 “make... into...”，句子主语 “people” 是复数，且描述客观事实用一般现在时，故 “make” 用原形；“墨西哥卷饼” 是 “taco”，常用复数形式 “tacos” 表泛指，符合 “用玉米制作墨西哥卷饼” 的语境。
答案：be used to make drinks
解析：“被用来制作” 用被动语态 “be used to make”，情态动词 “can” 后接动词原形，故 “be” 用原形；“饮品” 是 “drink”，此处表泛指用复数 “drinks”，与 “that are good for health” 的复数定语从句呼应，符合 “玉米须制作有益健康的饮品” 的语义。
答案：Could I ask
解析：请求许可的礼貌表达常用 “Could I... ”，“向某人请教” 是 “ask sb. about...”，“Could I ask you about...” 符合 “我能向你请教竹子的用途吗？” 的礼貌语气和语义，比 “May I...” 更委婉，适合日常请求场景。
答案：not only be used; be used to
解析：“不仅…… 还……” 用 “not only... but also...”，前半句 “被用于观赏” 是被动语态 “be used for decoration”，“not only” 后接情态动词 “can” 的原形 “be”；后半句 “被用来泡茶” 用 “be used to make tea”，“be used to do sth.” 表示 “被用来做某事”，与前半句结构呼应，符合句子语义。
答案：Using corn husks
解析：“用玉米壳” 在句中作方式状语，用现在分词短语 “Using corn husks”，“use” 与逻辑主语 “we” 是主动关系，故用现在分词；“玉米壳” 是 “corn husk”，表泛指用复数 “husks”，符合 “用玉米壳制作传统手工艺品” 的语境。
答案：made from wheat
解析：“用小麦做的” 作后置定语修饰 “bread”，“面包由小麦制成（能看出原材料）” 用 “made from wheat”，过去分词短语 “made from...” 表被动，“wheat” 是不可数名词，符合 “欧洲人吃小麦做的面包” 的语义。
答案：Could you tell
解析：请求对方告知信息的礼貌表达是 “Could you tell me... ”，“Could you tell” 后接宾语 “me”，符合 “你能告诉我棉花的用途吗？” 的委婉语气，比 “Can you tell” 更礼貌，适合日常交流场景。
答案：introduces a famous
解析：“介绍” 用动词 “introduce”，主语 “The vlog” 是第三人称单数，描述客观事实用一般现在时，故 “introduce” 用 “introduces”；“一道著名的” 是 “a famous”，修饰可数名词单数 “Mexican corn dish”，符合 “视频博客介绍著名墨西哥玉米菜肴” 的语义。
答案：can use it to make
解析：“可以用它制作” 用 “can use it to make”，情态动词 “can” 后接动词原形 “use”，“use sth. to make sth.” 是固定搭配，“it” 指代 “bamboo”，符合 “用竹子制作很多东西” 的语境，语法结构正确。
答案：have a good rest
解析：“好好休息一下” 的固定表达是 “have a good rest”，“will” 后接动词原形，所以填 “have a good rest”。
答案：is useful for
解析：“对…… 有用” 的固定搭配是 “be useful for”，主语 “The Internet” 是第三人称单数，一般现在时中 “be” 动词用 “is”，所以填 “is useful for”。
答案：the most popular drink
解析：“最受欢迎的饮料” 用 “the most popular drink”，“popular” 是多音节形容词，最高级形式为 “most popular”，前面加 “the”，所以填 “the most popular drink”。
答案：have a rest
解析：“休息一下” 的固定表达是 “have a rest”，“to” 后接动词原形（不定式作目的状语），所以填 “have a rest”。
答案：There will be
解析：“将来会有” 用 “there be” 句型的一般将来时 “there will be”，句首首字母大写，所以填 “There will be”。
四、完形填空
Passage 1
答案：B
解析：根据后文 “East Asia（做米粉）、Europe（做面包）、Americas（做墨西哥卷饼）” 可知，不同国家的人用 “不同的（different）” 方式吃三大粮食作物，A. 相同的；C. 困难的；D. 容易的，均不符合语境，故选 B。
答案：A
解析：文中提到 “Corn silk can be made into drinks that are good for our...”，结合常识可知玉米须饮品对 “健康（health）” 有益，B. 工作；C. 学习；D. 玩耍，均不符合语义，故选 A。
答案：C
解析：前文提到礼貌请求帮助，此处 “Most people will reply... or 'Sure'”，“Certainly（当然可以）” 与 “Sure” 语义相近，表同意，A. 不；B. 从不；D. 可能，均不符合 “同意请求” 的语境，故选 C。
Passage 2
答案：A
解析：根据 “The opening of the vlog... a famous Mexican dish—tacos” 可知，视频开头 “描述（describes）” 墨西哥卷饼这道菜，B. 售卖；C. 购买；D. 隐藏，均不符合 “视频内容介绍” 的语境，故选 A。
答案：C
解析：请求许可的礼貌表达用 “May I... ”，“May I ask you some questions” 表示 “我能问你一些问题吗？”，A. 必须；B. 应该；D. 将要，均不符合 “请求许可” 的语气，故选 C。
答案：B
解析：借东西的礼貌表达用 “Could you lend me... ”，“Could” 表委婉请求，A. 需要；C. 必须；D. 应该，均不符合 “请求借东西” 的语境，故选 B。
Passage 3
答案：A
解析：植物是从 “种子（seeds）” 生长成大树或花朵的，B. 树叶；C. 花朵；D. 草，均不符合植物生长的逻辑，故选 A。
答案：D
解析：文章主题是 “植物（Plants）”，它们遍布我们周围，A. 动物；B. 树木；C. 人类，均不符合语境，故选 D。
答案：C
解析：玫瑰 “有（have）” 多种颜色，A. 拿走；B. 给予；D. 握住，均不符合 “颜色种类” 的语义，故选 C。
答案：B
解析：玫瑰 “闻起来（smell）” 很香，让人心情愉悦，A. 尝起来；C. 感觉；D. 听起来，均不符合玫瑰的特性，故选 B。
答案：A
解析：玫瑰是 “爱（love）” 的象征，这是常识，B. 笑声；C. 微笑；D. 欢乐，均不符合玫瑰的象征意义，故选 A。
答案：D
解析：与 “warm spring” 对应的是 “cold winter（寒冷的冬天）”，A. 春天；B. 夏天；C. 秋天，均不符合 “冷暖对比” 的语境，故选 D。
答案：B
解析：植物提供我们 “呼吸（breathe）” 的空气，A. 喝；C. 锻炼；D. 跳舞，均不符合 “空气” 的用途，故选 B。
答案：C
解析：面包（bread）由小麦制成，属于植物产物，A. 茶（植物但此处与 “rice, noodles” 的主食类衔接更弱）；B. 咖啡（非植物主食）；D. 水（非植物），均不符合，故选 C。
答案：D
解析：板蓝根、人参用于 “医疗（medical）” 治疗，A. 仔细的；B. 电的；C. 和平的，均不符合 “治疗” 的语义，故选 D。
答案：B
解析：我们 “没有（without）” 植物就无法生存，A. 有；C. 在…… 上；D. 来自，均不符合逻辑，故选 B。
五、阅读理解
Passage 1
答案：B
解析：根据 “First, let's talk about the world's top three food plants: rice, wheat and corn” 可知，世界三大粮食作物是大米、小麦和玉米，A. 棉花；C. 竹子；D. 玫瑰，均不属于三大粮食作物，故选 B。
答案：C
解析：根据 “In East Asia, people love rice noodles made from rice” 可知，东亚人用大米做 “米粉（rice noodles）”，A. 做面包（欧洲用小麦）；B. 做墨西哥卷饼（美洲用玉米）；D. 做爆米花（文中未提东亚），均不符合，故选 C。
答案：B
解析：根据 “Corn silk... can be boiled to make a drink. Many people say this drink is good for health” 可知，玉米须用于制作 “有益健康的饮品（a healthy drink）”，A. 做篮子（玉米壳）；C. 做 T 恤（棉花）；D. 做茶（玫瑰），均不符合，故选 B。
答案：A
解析：根据 “Bamboo is strong and can be made into furniture such as chairs and tables” 可知，“竹子（Bamboo）” 用于制作桌椅，B. 棉花（做衣服）；C. 玫瑰（做茶 / 观赏）；D. 小麦（做面包），均不符合，故选 A。
答案：B
解析：根据 “When we want to learn more about plant uses, we should ask for help politely” 可知，请教植物用途时要 “礼貌（Be polite）”，A. 大声喊；C. 快速问；D. 不做任何事，均不符合，故选 B。
Passage 2
答案：B
解析：根据 “The opening of the vlog talked about a famous Mexican dish—tacos” 可知，视频开头谈论 “墨西哥著名玉米菜肴 —— 墨西哥卷饼（tacos）”，A. 种玉米；C. 欧洲玉米历史；D. 做玉米须饮品，均不符合，故选 B。
答案：B
解析：根据 “corn is very important in Mexico because many traditional dishes use corn” 可知，玉米在墨西哥重要是因为 “很多传统菜肴用玉米”，A. 做爆米花；C. 做衣服；D. 唯一食物（文中未提 “唯一”），均不符合，故选 B。
答案：A
解析：根据 “She also showed crafts made from corn husks, like small dolls and baskets” 可知，玉米壳制作 “小玩偶和篮子（small dolls and baskets）”，B. T 恤牛仔裤（棉花）；C. 米粉面包（大米、小麦）；D. 茶和咖啡（玫瑰、咖啡豆），均不符合，故选 A。
答案：B
解析：根据 “Mom told me corn can also be made into corn chips and popcorn” 可知，妈妈说玉米能做 “玉米片和爆米花（corn chips and popcorn）”，A. 家具手工艺品（竹子、玉米壳）；C. 饮品玩偶（玉米须、玉米壳）；D. 壳和茶（玉米壳、玫瑰），均不符合，故选 B。
答案：B
解析：根据 “The vlog reminded viewers to use 'May I...' or 'Could I...' when asking for help” 可知，作者学会请求许可时用 “May I... 或 Could I...”，A. 大声喊；C. 不说话；D. 只问一次，均不符合，故选 B。
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