Unit 5 The power of plants
（Understanding 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. Plants collect sunlight and CO during the day to produce s______, which is useful for
their growth.
2. Oxygen produced by plants is very important for animals and humans because they need
it to b______.
3. Water from the root of a plant will r______ up to the leaf through the stem.
4. There are millions of p______ on Earth, and they provide food, oxygen and many other
things for living beings.
5. Workers in the plant's "Leaf" workshop m______ water, CO and sunlight to make
necessary products.
6. When it gets dark, the "workers" in the plant will take a r______ after a day of hard work.
7. The Great Bear Rainforest has many tall trees that can l______ for thousands of years.
8. Water from the leaves of trees enters the air and forms c______, which then brings rain
to the forest.
9. Plants i______ the climate, animals and people, playing a key role in the natural world.
10. During Planting Day, we can plant more trees to make our environment better, as trees
are u______ for keeping the air clean.
11. I’m going to ______ (写封电子邮件) to my pen pal soon.
12. When we heard the n______ of the successful launch (成功发射) of the Shenzhou-18
spaceship, we all felt very excited.
13. Many parents think ______ (sunflower) are lucky flowers because they sound like “kui”.
14. He is planting tomatoes in the garden, so he has no time ______ (chat) with you.
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15. —I will ______ (enter) a speaking competition tomorrow.
—Good luck!
16. It’s raining outside. Put on your r______, or you’ll get wet.
17. Tim and his friends are playing ping-pong in the ______ (庭院) now.
18. Excuse me, can you give me some c______ without sugar
19. With the help of hybrid rice (杂交水稻), this area can ______ (出产) more rice.
20. Sora, an AI model, can make videos from words very quickly. It ______ (help) people
make videos more easily in the future.
21. I’m sorry I know nothing about it. It’s a ______ (secret) between them.
22. John likes to feed cows on his uncle’s farm on ______ (weekend).
23. AI is here now and it ______ (influence) us in many ways.
24. —Would you like some coffee
—Yes, and please get me some ______ (糖), too.
25. Tomorrow I’ll visit my grandparents. I ______ (play) Chinese chess with my grandfather.
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. What do plants mainly produce with water, CO and sunlight （ ）
A. Salt B. Sugar C. Oil D. Milk
27. Where do workers in the plant (in the passage) collect sunlight and CO （ ）
A. In the Root B. In the Stem C. In the Leaf D. In the Flower
28. Why is oxygen from plants important to animals and humans （ ）
A. They need it to eat B. They need it to breathe
C. They need it to sleep D. They need it to walk
29. How does water get from the root to the leaf of a plant （ ）
A. Through the Stem B. Through the Flower
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C. Through the Fruit D. Through the Branch
30. What will the "workers" in the plant do when it gets dark （ ）
A. Keep working B. Take a rest
C. Collect more CO D. Produce more sugar
31. What can the trees in the Great Bear Rainforest do to make rain （ ）
A. They can pour water from their leaves
B. Water from their leaves forms clouds, which bring rain
C. They can call for rain with their branches
D. They can store water and pour it when needed
32. How long can the trees in the Great Bear Rainforest live （ ）
A. For hundreds of years B. For thousands of years
C. For tens of years D. For a few years
33. What does "plant" mean in the title "The power of plants" (from the passage) （ ）
A. A factory B. A kind of machine
C. A living thing that grows in soil D. A tool for farming
34. Which of the following is NOT a thing that plants provide for the world （ ）
A. Food B. Oxygen C. Pollution D. Homes for animals
35. What is the main idea of the passage about plants （ ）
A. How to grow plants quickly
B. The different parts of a plant
C. The important roles and functions of plants
D. How to protect plants in the rainforest
三、完成句子
根据句意及提示，补全句子，使句意完整通顺。
36. 植物在白天收集阳光和二氧化碳。
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Plants ______ ______ and ______ during the day.
37. 水分从植物的根部通过茎部上升到叶子。
Water from the plant's root will ______ ______ to the leaf ______ the stem.
38. 植物产生的氧气对人类意义重大，因为人类需要它来呼吸。
Oxygen produced by plants ______ ______ ______ humans because they need it ______
______.
39. 当夜幕降临时，植物里的 “工作者”们会休息。
When it ______ ______, the "workers" in the plant ______ ______ ______ ______.
40. 热带雨林中的树木能为动物提供居住的地方和食物。
Trees in the rainforest can ______ ______ ______ ______ to live and food to eat.
41. 明天我们将学习植物的不同部分。
We ______ ______ ______ different parts of plants tomorrow.
42. 向日葵种子将会长成高大的植物。
The sunflower seeds ______ ______ ______ tall plants.
43. 没有植物，自然界将会大不相同。
______ ______, the natural world ______ ______ very different.
44. 树叶在秋天将会变成不同的颜色。
The leaves ______ ______ ______ different colours in autumn.
45. 我们今天将步行穿过大贝尔雨林，了解那里的植物。
We ______ ______ ______ the Great Bear Rainforest today to learn about the plants there.
46. 众所周知，中医是中国文化的重要组成部分。
______ ______ ______ that traditional Chinese medicine is an important part of Chinese
culture.
47. They are going to take a walk in the park. (对画线部分提问)
______ ______ they going to take a walk
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48. —Will there be heavy rain
—______, ______ ______.（作否定回答）
49. 现在人们把喝茶看作是一种文化而不仅仅是一种习惯。
Now people regard drinking tea as a culture ______ ______ a habit.
50. 我们队输了，可是这也不失为一场好的比赛。
Our team lost. It was ______ ______ ______ ______.
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 amazing living things. They have their own "workshops" to make what they need.
The "Leaf" workshop is one of the most important ones. In this workshop, "workers" 51.
______ sunlight and CO during the day. At the same time, water from the "Root" workshop
is sent up through the "Stem" to the "Leaf".
When water, CO and sunlight meet in the "Leaf", something wonderful happens. They mix
together and produce 52. ______ - the food for the plant's growth. Another product from this
process is oxygen. Plants don't need much oxygen, but it is very important for animals and
humans. We can't live 53. ______ oxygen.
As the day goes on and it gets dark, the "workers" in the plant finish their work and take a
rest. But plants do more than just make food and oxygen. They also provide homes for many
animals and help keep the climate balanced. Without plants, our world 54. ______ be a very
different and difficult place to live in. So we should always remember to protect plants and
plant more trees.
51. A. collect B. waste C. lose D. sell （ ）
52. A. salt B. sugar C. water D. milk （ ）
53. A. with B. without C. for D. about （ ）
54. A. will B. won't C. is D. isn't （ ）
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Passage 2
Welcome to the Great Bear Rainforest! Today we are going to 55. ______ through this
amazing forest and learn about its plants. The trees here are very special. They can live for
thousands of years and even help make rain.
You might wonder how trees make rain. Well, let's look up at the top of the trees. Water from
the leaves goes into the air and forms 56. ______. These clouds then get heavier and heavier,
and finally it rains. This rain is good for other plants and animals in the forest.
The trees also help animals a lot. They 57. ______ animals homes to live in and food to eat.
Many birds build their nests in the trees, and some small animals hide in the tree holes.
Plants in the rainforest are very important for the whole world. They produce oxygen and
take in CO , which helps keep the air clean. They also influence the climate. So we must
protect these plants and make sure they can 58. ______ for many more years.
55. A. fly B. walk C. swim D. jump （ ）
56. A. clouds B. snow C. wind D. fog （ ）
57. A. borrow B. lend C. give D. take （ ）
58. A. live B. die C. work D. play （ ）
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 "Workshops" of a Plant
Have you ever thought of a plant as a factory with different workshops It might sound
strange, but a plant really has its own "workshops" that do different jobs to keep it alive and
growing.
The first "workshop" is the Root. Its job is to get water from the soil. Without water, the plant
can't survive. The water collected by the Root is then sent to another "workshop" - the Stem.
The Stem acts like a road, carrying water and other important things up to the Leaf, which is
the most important "workshop" of all.
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In the Leaf workshop, "workers" are busy during the day. They collect sunlight and CO from
the air. When water (from the Stem), sunlight and CO meet, they mix together. This process
produces two things: sugar and oxygen. Sugar is the food that helps the plant grow, while
oxygen is released into the air. Animals and humans need this oxygen to breathe.
When it gets dark, the "workers" in the Leaf stop working and take a rest. But the plant's
work doesn't end there. Plants also provide homes for animals, help make rain in some forests
and keep the climate balanced. There are millions of plants on Earth, and each one plays an
important role in making our world a better place to live.
59. What is the job of the Root "workshop" （ ）
A. To collect sunlight B. To get water from the soil
C. To produce sugar D. To carry water to the Leaf
60. Which "workshop" carries water to the Leaf （ ）
A. The Root B. The Stem C. The Flower D. The Fruit
61. What do the "workers" in the Leaf collect during the day （ ）
A. Water and sugar B. Sunlight and CO
C. Oxygen and water D. Sugar and CO
62. What is the food for the plant's growth （ ）
A. Water B. CO C. Sugar D. Oxygen
63. Why are plants important to animals and humans （ ）
A. They provide food and oxygen B. They help animals build houses
C. They make rain for humans D. They take in oxygen from the air
Passage 2
Plants in the Great Bear Rainforest
The Great Bear Rainforest is a special place with many amazing plants, especially tall trees.
These trees are not just ordinary trees - they have many special abilities that help the forest
and the whole world.
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One of the most interesting things about these trees is that they can make rain. How do they
do it Water from the leaves of the trees evaporates (蒸发) into the air. As more and more
water goes into the air, it forms clouds at the top of the trees. When the clouds are heavy
enough, they drop rain onto the forest. This rain keeps other plants alive and provides water
for animals.
The trees in the Great Bear Rainforest can live for a very long time - some even live for
thousands of years. They are like old guardians of the forest. They also provide homes for
many animals. Birds build nests in their branches, squirrels store food in their holes, and
some insects live under their bark. Without these trees, many animals would have no place to
live.
These plants also help the environment in other ways. They take in CO from the air and
produce oxygen, which is necessary for all living beings. They also help keep the climate
stable. If there were no these plants, the climate in the rainforest and even in other parts of the
world would change a lot.
So, the plants in the Great Bear Rainforest are not just part of the forest - they are essential
for the survival of many living things. We must protect them and make sure they continue to
grow and thrive.
64. How do the trees in the Great Bear Rainforest make rain （ ）
A. They pour water from their leaves directly
B. Water from their leaves evaporates and forms clouds, which bring rain
C. They absorb rain from the sky and release it later
D. They ask other plants to help make rain
65. How long can some trees in the Great Bear Rainforest live （ ）
A. For a few years B. For hundreds of years
C. For thousands of years D. For tens of thousands of years
66. Which animal is NOT mentioned as living in the trees （ ）
A. Birds B. Squirrels C. Lions D. Insects
67. What do the trees do to help the environment （ ）
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A. They take in oxygen and produce CO
B. They take in CO and produce oxygen
C. They make the climate hotter
D. They destroy the homes of animals
68. What is the main idea of the passage （ ）
A. How to visit the Great Bear Rainforest
B. The special abilities and importance of plants in the Great Bear Rainforest
C. How animals live in the Great Bear Rainforest
D. The different kinds of trees in the Great Bear Rainforest
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答案及解析
一、单词拼写
1. 答案：sugar
解析：植物利用水、二氧化碳和阳光产生 “糖（sugar）”，糖对植物生长很重要。
2. 答案：breathe
解析：植物产生的氧气对人和动物很重要，因为他们需要氧气来 “呼吸（breathe）”，
“to”后接动词原形。
3. 答案：rise
解析：植物根部的水分会通过茎 “上升（rise）”到叶子，“will”后接动词原形。
4. 答案：plants
解析：地球上有几百万的 “植物（plant）”，“millions of”后接可数名词复数，故填
“plants”。
5. 答案：mix
解析：植物 “叶子”车间的 “工作者”会把水、二氧化碳和阳光 “混合（mix）”在一起
制造所需产物，主语是复数，动词用原形。
6. 答案：rest
解析：夜幕降临时，植物里的 “工作者”会 “休息（rest）”，“take a rest”是固定搭配。
7. 答案：live
解析：大贝尔雨林里的许多高大树木能 “存活（live）”数千年，“can”后接动词原形。
8. 答案：clouds
解析：树叶中的水分进入空气中形成 “云（cloud）”，云随后会给森林带来雨水，用复
数 “clouds”表泛指。
9. 答案：influence
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解析：植物 “影响（influence）”气候、动物和人类，在自然界中扮演重要角色，主语
是复数，动词用原形。
10. 答案：useful
解析：树木对保持空气清洁很 “有用（useful）”，“be useful for”是固定搭配。
11. 答案：write an email
解析：“写封电子邮件”用 “write an email”，“be going to”后接动词原形，所以填 “write
an email”。
12. 答案：news
解析：“听到……的消息”用 “hear the news of...”，“news”是不可数名词，所以填
“news”。
13. 答案：sunflowers
解析：“sunflower”是可数名词，根据 “are”可知用复数形式 “sunflowers”，所以填
“sunflowers”。
14. 答案：to chat
解析：“have no time to do sth.”是固定搭配，意为 “没有时间做某事”，所以填 “to
chat”。
15. 答案：enter
解析：“will”是情态动词，后接动词原形，所以填 “enter”。
16. 答案：raincoat
解析：外面下雨，要穿上 “雨衣（raincoat）”，所以填 “raincoat”。
17. 答案：yard
解析：“庭院”的英文是 “yard”，所以填 “yard”。
18. 答案：coffee
解析：根据 “without sugar”及首字母 “c”可知是 “咖啡（coffee）”，“coffee”是不可数
名词，所以填 “coffee”。
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19. 答案：produce
解析：“出产”的英文是 “produce”，“can”后接动词原形，所以填 “produce”。
20. 答案：will help
解析：“in the future”表示将来时间，用一般将来时 “will help”，所以填 “will help”。
21. 答案：secret
解析：“a”后接可数名词单数，“secret”是单数形式，所以填 “secret”。
22. 答案：weekends
解析：“on weekends”是固定搭配，意为 “在周末”，所以填 “weekends”。
23. 答案：influences
解析：主语 “it”是第三人称单数，一般现在时中动词 “influence”用第三人称单数形式
“influences”，所以填 “influences”。
24. 答案：sugar
解析：“糖”的英文是 “sugar”，“sugar”是不可数名词，所以填 “sugar”。
25. 答案：will play
解析：“tomorrow”表示将来时间，用一般将来时 “will play”，所以填 “will play”。
二、单项选择
26. 答案：B
解析：根据文章内容，植物用水分、二氧化碳和阳光主要制造 “糖（sugar）”，A.盐；
C.油；D.牛奶，均不符合，故选 B。
27. 答案：C
解析：文中提到植物的 “Leaf（叶子）”车间的 “工作者”收集阳光和二氧化碳，A.根
部；B.茎部；D.花朵，均不符合，故选 C。
28. 答案：B
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解析：植物产生的氧气对人和动物重要是因为他们需要氧气 “呼吸（breathe）”，A.
吃；C.睡觉；D.走路，均不符合，故选 B。
29. 答案：A
解析：水分从植物根部通过 “茎（Stem）”上升到叶子，B.花朵；C.果实；D.树枝，
均不符合，故选 A。
30. 答案：B
解析：文中提到 “Soon it's going to get dark. They will take a rest.”，夜幕降临时，植物里
的 “工作者”会休息，A.继续工作；C.收集更多二氧化碳；D.制造更多糖，均不符
合，故选 B。
31. 答案：B
解析：大贝尔雨林的树木通过叶子中的水分进入空气形成云，云随后带来雨水，A.从
叶子倒水；C.用树枝求雨；D.储存水分后倾倒，均不符合，故选 B。
32. 答案：B
解析：文中提到 “The trees in a rainforest can live for thousands of years.”，雨林中的树木
能活数千年，A.几百年；C.几十年；D.几年，均不符合，故选 B。
33. 答案：C
解析：标题 “The power of plants”中的 “plant”指 “生长在土壤中的有生命的植物”，A.
工厂；B.机器；D.农具，均不符合，故选 C。
34. 答案：C
解析：植物提供食物、氧气和动物栖息地，不会产生污染，A.食物；B.氧气；D.动
物栖息地，均是植物提供的，故选 C。
35. 答案：C
解析：文章主要讲述植物的重要作用和功能，A.如何快速种植植物；B.植物的不同部
分；D.如何保护雨林中的植物，均不符合主旨，故选 C。
三、完成句子
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36. 答案：collect sunlight; CO
解析：“收集”用动词 “collect”，主语 “Plants”是复数，且句子描述客观事实用一般现
在时，故 “collect”用原形；“阳光”是 “sunlight”（不可数名词），“二氧化碳”是 “CO ”
（常用缩写形式），二者为并列宾语，用 “and”连接。
37. 答案：rise up; through
解析：“上升”用 “rise up”，“will”后接动词原形，故填 “rise up”；“通过（物体内部）”
用介词 “through”，此处表示水分穿过茎部，符合 “through”的用法，而 “across”侧重
“从表面穿过”，不符合语境，故填 “through”。
38. 答案：means a lot to; to breathe
解析：“对……意义重大”是固定搭配 “mean a lot to”，主语 “Oxygen”是不可数名词，
视为单数，句子用一般现在时，故 “mean”用第三人称单数形式 “means”；“需要某物
做某事”是 “need sth. to do sth.”，“呼吸”用动词 “breathe”，故填 “to breathe”。
39. 答案：gets dark; will take a rest
解析：“夜幕降临”用 “get dark”，主语 “it”是第三人称单数，一般现在时中 “get”用
“gets”；“休息”是 “take a rest”，句子描述将来发生的动作，用一般将来时 “will +动词
原形”，故填 “will take a rest”。
40. 答案：provide animals with homes
解析：“为……提供……”是固定搭配 “provide sb. with sth.”，“can”后接动词原形，故
“provide”用原形；“动物”用 “animals”（复数表泛指），“居住的地方”是 “homes”（复
数表泛指），符合 “provide animals with homes”的搭配和语境。
41. 答案：are going to learn
解析：句子中有将来时间状语 “tomorrow”，用 “be going to +动词原形”表将来；主语
“We”是复数，“be”动词用 “are”；“学习”用动词 “learn”，故填 “are going to learn”（也
可填 “will learn”，“will +动词原形”同样表将来，此处 “are going to learn”更侧重 “计
划好的动作”，符合 “学习植物部分”的语境）。
42. 答案：will grow into
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解析：“长成（某种形态 /事物）”是固定搭配 “grow into”，句子描述将来发生的变化
（种子长成植物），用一般将来时 “will +动词原形”，故 “grow”用原形，填 “will
grow into”。
43. 答案：Without plants; will be
解析：“没有”用介词 “Without”，后接名词 “plants”（复数表泛指），注意句首首字母
大写；句子描述 “没有植物”的假设结果，用一般将来时 “will + be动词”，“be
different”是 “不同的”，故填 “will be”。
44. 答案：will turn into
解析：“变成（颜色 /形态）”常用 “turn into”，句子中有将来时间状语 “in autumn”
（此处指 “每年秋天”，也可理解为 “将来的秋天”），用一般将来时 “will +动词原
形”，“turn”用原形，故填 “will turn into”（也可填 “turn into”，一般现在时表客观规
律，此处 “will turn into”更突出 “将来的变化”，符合语境）。
45. 答案：will walk through
解析：“步行穿过（空间 /区域）”是 “walk through”，“穿过森林”用 “walk through the
forest”，符合 “through”“从内部穿过”的用法；句子中有时间状语 “today”（此处指 “今
天将要做的事”），用一般将来时 “will +动词原形”，“walk”用原形，故填 “will walk
through”（也可填 “are going to walk through”，表 “计划好的动作”，与 “了解植物”的目
的呼应，同样符合语境）。
46. 答案：It is known
解析：“众所周知”的固定表达是 “It is known that...”，所以填 “It is known”。
47. 答案：Where are
解析：对地点 “in the park”提问用 “where”，原句是 “be going to”结构，变疑问句时将
“be”动词 “are”提前，所以填 “Where are”。
48. 答案：No; there won’t
解析：“Will there be...”的否定回答是 “No, there won’t.”，所以填 “No; there won’t”。
49. 答案：rather than
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解析：“而不仅仅是”用 “rather than”，表示对比，所以填 “rather than”。
50. 答案：still a good match
解析：“不失为一场好的比赛”可表达为 “still a good match”，所以填 “still a good
match”。
四、完形填空
Passage 1
51. 答案：A
解析：植物的 “叶子车间”需要 “收集（collect）”阳光和二氧化碳来进行光合作用，B.
浪费；C.失去；D.售卖，均不符合语境，故选 A。
52. 答案：B
解析：植物通过光合作用产生 “糖（sugar）”作为自身生长的食物，A.盐；C.水；D.
牛奶，均不符合科学常识，故选 B。
53. 答案：B
解析：人类和动物 “没有（without）”氧气无法生存，A.有；C.为了；D.关于，均不
符合逻辑，故选 B。
54. 答案：A
解析：“Without plants”是虚拟条件，此处表示 “我们的世界将会（will）变成一个非常
不同且难以居住的地方”，B.不会；C.是；D.不是，均不符合虚拟语气的逻辑，故选
A。
Passage 2
55. 答案：B
解析：在雨林中 “步行（walk）”穿行符合语境，A.飞；C.游泳；D.跳跃，均不符合
实际，故选 B。
56. 答案：A
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解析：树叶中的水分蒸发到空中形成 “云（clouds）”，云聚集后形成降雨，B.雪；C.
风；D.雾，均不符合 “造雨”的过程，故选 A。
57. 答案：C
解析：树木 “给予（give）”动物居住的家和食物，A.借；B.借出；D.拿走，均不符
合语境，故选 C。
58. 答案：A
解析：我们要保护植物，确保它们能 “存活（live）”更久，B.死亡；C.工作；D.玩
耍，均不符合语境，故选 A。
五、阅读理解
Passage 1
59. 答案：B
解析：根据 “The first 'workshop' is the Root. Its job is to get water from the soil.”可知，根
部的作用是从土壤中吸收水分，A.收集阳光；C.产生糖；D.把水输送到叶子，均不
符合，故选 B。
60. 答案：B
解析：根据 “The Stem acts like a road, carrying water and other important things up to the
Leaf”可知，茎负责把水输送到叶子，A.根部；C.花朵；D.果实，均不符合，故选
B。
61. 答案：B
解析：根据 “In the Leaf workshop, 'workers' are busy during the day. They collect sunlight
and CO from the air.”可知，叶子车间的 “工作者”收集阳光和二氧化碳，A.水和糖；C.
氧气和水；D.糖和二氧化碳，均不符合，故选 B。
62. 答案：C
解析：根据 “Sugar is the food that helps the plant grow”可知，糖是植物生长的食物，A.
水；B.二氧化碳；D.氧气，均不符合，故选 C。
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63. 答案：A
解析：根据 “Plants... produce two things: sugar and oxygen. Sugar is the food... while
oxygen is released into the air. Animals and humans need this oxygen to breathe.”可知，植
物为动物和人类提供食物和氧气，B.帮助动物建房子；C.为人类造雨；D.从空气中吸
收氧气，均不符合，故选 A。
Passage 2
64. 答案：B
解析：根据 “Water from the leaves of the trees evaporates (蒸发) into the air. As more and
more water goes into the air, it forms clouds... finally it rains.”可知，树木通过叶子水分蒸
发形成云，云再降雨，A.直接从叶子倒水；C.从天空吸收雨水后释放；D.让其他植
物帮忙造雨，均不符合，故选 B。
65. 答案：C
解析：根据 “The trees in the Great Bear Rainforest can live for a very long time - some even
live for thousands of years.”可知，有些树能活数千年，A.几年；B.几百年；D.数万
年，均不符合，故选 C。
66. 答案：C
解析：文中提到 “Birds... squirrels... some insects”，未提及狮子（Lions），A.鸟；B.松
鼠；D.昆虫，均有提及，故选 C。
67. 答案：B
解析：根据 “They take in CO from the air and produce oxygen, which is necessary for all
living beings.”可知，树木吸收二氧化碳并产生氧气，A.吸收氧气并产生二氧化碳；C.
使气候更热；D.破坏动物的家，均不符合，故选 B。
68. 答案：B
解析：文章主要介绍了大贝尔雨林中植物的特殊能力（造雨、存活久等）及其重要
性，A.如何参观大贝尔雨林；C.动物如何在大贝尔雨林生活；D.大贝尔雨林的不同
树种，均不符合主旨，故选 B。
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21 世纪教育网()
Unit 5 The power of plants
（Understanding 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。
Plants collect sunlight and CO during the day to produce s______, which is useful for their growth.
Oxygen produced by plants is very important for animals and humans because they need it to b______.
Water from the root of a plant will r______ up to the leaf through the stem.
There are millions of p______ on Earth, and they provide food, oxygen and many other things for living beings.
Workers in the plant's "Leaf" workshop m______ water, CO and sunlight to make necessary products.
When it gets dark, the "workers" in the plant will take a r______ after a day of hard work.
The Great Bear Rainforest has many tall trees that can l______ for thousands of years.
Water from the leaves of trees enters the air and forms c______, which then brings rain to the forest.
Plants i______ the climate, animals and people, playing a key role in the natural world.
During Planting Day, we can plant more trees to make our environment better, as trees are u______ for keeping the air clean.
I’m going to ______ (写封电子邮件) to my pen pal soon.
When we heard the n______ of the successful launch (成功发射) of the Shenzhou-18 spaceship, we all felt very excited.
Many parents think ______ (sunflower) are lucky flowers because they sound like “kui”.
He is planting tomatoes in the garden, so he has no time ______ (chat) with you.
—I will ______ (enter) a speaking competition tomorrow.
—Good luck!
It’s raining outside. Put on your r______, or you’ll get wet.
Tim and his friends are playing ping-pong in the ______ (庭院) now.
Excuse me, can you give me some c______ without sugar
With the help of hybrid rice (杂交水稻), this area can ______ (出产) more rice.
Sora, an AI model, can make videos from words very quickly. It ______ (help) people make videos more easily in the future.
I’m sorry I know nothing about it. It’s a ______ (secret) between them.
John likes to feed cows on his uncle’s farm on ______ (weekend).
AI is here now and it ______ (influence) us in many ways.
—Would you like some coffee
—Yes, and please get me some ______ (糖), too.
Tomorrow I’ll visit my grandparents. I ______ (play) Chinese chess with my grandfather.
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。
What do plants mainly produce with water, CO and sunlight （ ）
A. Salt B. Sugar C. Oil D. Milk
Where do workers in the plant (in the passage) collect sunlight and CO （ ）
A. In the Root B. In the Stem C. In the Leaf D. In the Flower
Why is oxygen from plants important to animals and humans （ ）
A. They need it to eat B. They need it to breathe
C. They need it to sleep D. They need it to walk
How does water get from the root to the leaf of a plant （ ）
A. Through the Stem B. Through the Flower
C. Through the Fruit D. Through the Branch
What will the "workers" in the plant do when it gets dark （ ）
A. Keep working B. Take a rest
C. Collect more CO D. Produce more sugar
What can the trees in the Great Bear Rainforest do to make rain （ ）
A. They can pour water from their leaves
B. Water from their leaves forms clouds, which bring rain
C. They can call for rain with their branches
D. They can store water and pour it when needed
How long can the trees in the Great Bear Rainforest live （ ）
A. For hundreds of years B. For thousands of years
C. For tens of years D. For a few years
What does "plant" mean in the title "The power of plants" (from the passage) （ ）
A. A factory B. A kind of machine
C. A living thing that grows in soil D. A tool for farming
Which of the following is NOT a thing that plants provide for the world （ ）
A. Food B. Oxygen C. Pollution D. Homes for animals
What is the main idea of the passage about plants （ ）
A. How to grow plants quickly
B. The different parts of a plant
C. The important roles and functions of plants
D. How to protect plants in the rainforest
三、完成句子
根据句意及提示，补全句子，使句意完整通顺。
植物在白天收集阳光和二氧化碳。
Plants ______ ______ and ______ during the day.
水分从植物的根部通过茎部上升到叶子。
Water from the plant's root will ______ ______ to the leaf ______ the stem.
植物产生的氧气对人类意义重大，因为人类需要它来呼吸。
Oxygen produced by plants ______ ______ ______ humans because they need it ______ ______.
当夜幕降临时，植物里的 “工作者” 们会休息。
When it ______ ______, the "workers" in the plant ______ ______ ______ ______.
热带雨林中的树木能为动物提供居住的地方和食物。
Trees in the rainforest can ______ ______ ______ ______ to live and food to eat.
明天我们将学习植物的不同部分。
We ______ ______ ______ different parts of plants tomorrow.
向日葵种子将会长成高大的植物。
The sunflower seeds ______ ______ ______ tall plants.
没有植物，自然界将会大不相同。
______ ______, the natural world ______ ______ very different.
树叶在秋天将会变成不同的颜色。
The leaves ______ ______ ______ different colours in autumn.
我们今天将步行穿过大贝尔雨林，了解那里的植物。
We ______ ______ ______ the Great Bear Rainforest today to learn about the plants there.
众所周知，中医是中国文化的重要组成部分。
______ ______ ______ that traditional Chinese medicine is an important part of Chinese culture.
They are going to take a walk in the park. (对画线部分提问)
______ ______ they going to take a walk
—Will there be heavy rain
—______, ______ ______.（作否定回答）
现在人们把喝茶看作是一种文化而不仅仅是一种习惯。
Now people regard drinking tea as a culture ______ ______ a habit.
我们队输了，可是这也不失为一场好的比赛。
Our team lost. It was ______ ______ ______ ______.
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 amazing living things. They have their own "workshops" to make what they need. The "Leaf" workshop is one of the most important ones. In this workshop, "workers" 51. ______ sunlight and CO during the day. At the same time, water from the "Root" workshop is sent up through the "Stem" to the "Leaf".
When water, CO and sunlight meet in the "Leaf", something wonderful happens. They mix together and produce 52. ______ - the food for the plant's growth. Another product from this process is oxygen. Plants don't need much oxygen, but it is very important for animals and humans. We can't live 53. ______ oxygen.
As the day goes on and it gets dark, the "workers" in the plant finish their work and take a rest. But plants do more than just make food and oxygen. They also provide homes for many animals and help keep the climate balanced. Without plants, our world 54. ______ be a very different and difficult place to live in. So we should always remember to protect plants and plant more trees.
A. collect B. waste C. lose D. sell （ ）
A. salt B. sugar C. water D. milk （ ）
A. with B. without C. for D. about （ ）
A. will B. won't C. is D. isn't （ ）
Passage 2
Welcome to the Great Bear Rainforest! Today we are going to 55. ______ through this amazing forest and learn about its plants. The trees here are very special. They can live for thousands of years and even help make rain.
You might wonder how trees make rain. Well, let's look up at the top of the trees. Water from the leaves goes into the air and forms 56. ______. These clouds then get heavier and heavier, and finally it rains. This rain is good for other plants and animals in the forest.
The trees also help animals a lot. They 57. ______ animals homes to live in and food to eat. Many birds build their nests in the trees, and some small animals hide in the tree holes.
Plants in the rainforest are very important for the whole world. They produce oxygen and take in CO , which helps keep the air clean. They also influence the climate. So we must protect these plants and make sure they can 58. ______ for many more years.
A. fly B. walk C. swim D. jump （ ）
A. clouds B. snow C. wind D. fog （ ）
A. borrow B. lend C. give D. take （ ）
A. live B. die C. work D. play （ ）
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 "Workshops" of a Plant
Have you ever thought of a plant as a factory with different workshops It might sound strange, but a plant really has its own "workshops" that do different jobs to keep it alive and growing.
The first "workshop" is the Root. Its job is to get water from the soil. Without water, the plant can't survive. The water collected by the Root is then sent to another "workshop" - the Stem. The Stem acts like a road, carrying water and other important things up to the Leaf, which is the most important "workshop" of all.
In the Leaf workshop, "workers" are busy during the day. They collect sunlight and CO from the air. When water (from the Stem), sunlight and CO meet, they mix together. This process produces two things: sugar and oxygen. Sugar is the food that helps the plant grow, while oxygen is released into the air. Animals and humans need this oxygen to breathe.
When it gets dark, the "workers" in the Leaf stop working and take a rest. But the plant's work doesn't end there. Plants also provide homes for animals, help make rain in some forests and keep the climate balanced. There are millions of plants on Earth, and each one plays an important role in making our world a better place to live.
What is the job of the Root "workshop" （ ）
A. To collect sunlight B. To get water from the soil
C. To produce sugar D. To carry water to the Leaf
Which "workshop" carries water to the Leaf （ ）
A. The Root B. The Stem C. The Flower D. The Fruit
What do the "workers" in the Leaf collect during the day （ ）
A. Water and sugar B. Sunlight and CO
C. Oxygen and water D. Sugar and CO
What is the food for the plant's growth （ ）
A. Water B. CO C. Sugar D. Oxygen
Why are plants important to animals and humans （ ）
A. They provide food and oxygen B. They help animals build houses
C. They make rain for humans D. They take in oxygen from the air
Passage 2
Plants in the Great Bear Rainforest
The Great Bear Rainforest is a special place with many amazing plants, especially tall trees. These trees are not just ordinary trees - they have many special abilities that help the forest and the whole world.
One of the most interesting things about these trees is that they can make rain. How do they do it Water from the leaves of the trees evaporates (蒸发) into the air. As more and more water goes into the air, it forms clouds at the top of the trees. When the clouds are heavy enough, they drop rain onto the forest. This rain keeps other plants alive and provides water for animals.
The trees in the Great Bear Rainforest can live for a very long time - some even live for thousands of years. They are like old guardians of the forest. They also provide homes for many animals. Birds build nests in their branches, squirrels store food in their holes, and some insects live under their bark. Without these trees, many animals would have no place to live.
These plants also help the environment in other ways. They take in CO from the air and produce oxygen, which is necessary for all living beings. They also help keep the climate stable. If there were no these plants, the climate in the rainforest and even in other parts of the world would change a lot.
So, the plants in the Great Bear Rainforest are not just part of the forest - they are essential for the survival of many living things. We must protect them and make sure they continue to grow and thrive.
How do the trees in the Great Bear Rainforest make rain （ ）
A. They pour water from their leaves directly
B. Water from their leaves evaporates and forms clouds, which bring rain
C. They absorb rain from the sky and release it later
D. They ask other plants to help make rain
How long can some trees in the Great Bear Rainforest live （ ）
A. For a few years B. For hundreds of years
C. For thousands of years D. For tens of thousands of years
Which animal is NOT mentioned as living in the trees （ ）
A. Birds B. Squirrels C. Lions D. Insects
What do the trees do to help the environment （ ）
A. They take in oxygen and produce CO
B. They take in CO and produce oxygen
C. They make the climate hotter
D. They destroy the homes of animals
What is the main idea of the passage （ ）
A. How to visit the Great Bear Rainforest
B. The special abilities and importance of plants in the Great Bear Rainforest
C. How animals live in the Great Bear Rainforest
D. The different kinds of trees in the Great Bear Rainforest
答案及解析
一、单词拼写
答案：sugar
解析：植物利用水、二氧化碳和阳光产生 “糖（sugar）”，糖对植物生长很重要。
答案：breathe
解析：植物产生的氧气对人和动物很重要，因为他们需要氧气来 “呼吸（breathe）”，“to” 后接动词原形。
答案：rise
解析：植物根部的水分会通过茎 “上升（rise）” 到叶子，“will” 后接动词原形。
答案：plants
解析：地球上有几百万的 “植物（plant）”，“millions of” 后接可数名词复数，故填 “plants”。
答案：mix
解析：植物 “叶子” 车间的 “工作者” 会把水、二氧化碳和阳光 “混合（mix）” 在一起制造所需产物，主语是复数，动词用原形。
答案：rest
解析：夜幕降临时，植物里的 “工作者” 会 “休息（rest）”，“take a rest” 是固定搭配。
答案：live
解析：大贝尔雨林里的许多高大树木能 “存活（live）” 数千年，“can” 后接动词原形。
答案：clouds
解析：树叶中的水分进入空气中形成 “云（cloud）”，云随后会给森林带来雨水，用复数 “clouds” 表泛指。
答案：influence
解析：植物 “影响（influence）” 气候、动物和人类，在自然界中扮演重要角色，主语是复数，动词用原形。
答案：useful
解析：树木对保持空气清洁很 “有用（useful）”，“be useful for” 是固定搭配。
答案：write an email
解析：“写封电子邮件” 用 “write an email”，“be going to” 后接动词原形，所以填 “write an email”。
答案：news
解析：“听到…… 的消息” 用 “hear the news of...”，“news” 是不可数名词，所以填 “news”。
答案：sunflowers
解析：“sunflower” 是可数名词，根据 “are” 可知用复数形式 “sunflowers”，所以填 “sunflowers”。
答案：to chat
解析：“have no time to do sth.” 是固定搭配，意为 “没有时间做某事”，所以填 “to chat”。
答案：enter
解析：“will” 是情态动词，后接动词原形，所以填 “enter”。
答案：raincoat
解析：外面下雨，要穿上 “雨衣（raincoat）”，所以填 “raincoat”。
答案：yard
解析：“庭院” 的英文是 “yard”，所以填 “yard”。
答案：coffee
解析：根据 “without sugar” 及首字母 “c” 可知是 “咖啡（coffee）”，“coffee” 是不可数名词，所以填 “coffee”。
答案：produce
解析：“出产” 的英文是 “produce”，“can” 后接动词原形，所以填 “produce”。
答案：will help
解析：“in the future” 表示将来时间，用一般将来时 “will help”，所以填 “will help”。
答案：secret
解析：“a” 后接可数名词单数，“secret” 是单数形式，所以填 “secret”。
答案：weekends
解析：“on weekends” 是固定搭配，意为 “在周末”，所以填 “weekends”。
答案：influences
解析：主语 “it” 是第三人称单数，一般现在时中动词 “influence” 用第三人称单数形式 “influences”，所以填 “influences”。
答案：sugar
解析：“糖” 的英文是 “sugar”，“sugar” 是不可数名词，所以填 “sugar”。
答案：will play
解析：“tomorrow” 表示将来时间，用一般将来时 “will play”，所以填 “will play”。
二、单项选择
答案：B
解析：根据文章内容，植物用水分、二氧化碳和阳光主要制造 “糖（sugar）”，A. 盐；C. 油；D. 牛奶，均不符合，故选 B。
答案：C
解析：文中提到植物的 “Leaf（叶子）” 车间的 “工作者” 收集阳光和二氧化碳，A. 根部；B. 茎部；D. 花朵，均不符合，故选 C。
答案：B
解析：植物产生的氧气对人和动物重要是因为他们需要氧气 “呼吸（breathe）”，A. 吃；C. 睡觉；D. 走路，均不符合，故选 B。
答案：A
解析：水分从植物根部通过 “茎（Stem）” 上升到叶子，B. 花朵；C. 果实；D. 树枝，均不符合，故选 A。
答案：B
解析：文中提到 “Soon it's going to get dark. They will take a rest.”，夜幕降临时，植物里的 “工作者” 会休息，A. 继续工作；C. 收集更多二氧化碳；D. 制造更多糖，均不符合，故选 B。
答案：B
解析：大贝尔雨林的树木通过叶子中的水分进入空气形成云，云随后带来雨水，A. 从叶子倒水；C. 用树枝求雨；D. 储存水分后倾倒，均不符合，故选 B。
答案：B
解析：文中提到 “The trees in a rainforest can live for thousands of years.”，雨林中的树木能活数千年，A. 几百年；C. 几十年；D. 几年，均不符合，故选 B。
答案：C
解析：标题 “The power of plants” 中的 “plant” 指 “生长在土壤中的有生命的植物”，A. 工厂；B. 机器；D. 农具，均不符合，故选 C。
答案：C
解析：植物提供食物、氧气和动物栖息地，不会产生污染，A. 食物；B. 氧气；D. 动物栖息地，均是植物提供的，故选 C。
答案：C
解析：文章主要讲述植物的重要作用和功能，A. 如何快速种植植物；B. 植物的不同部分；D. 如何保护雨林中的植物，均不符合主旨，故选 C。
三、完成句子
答案：collect sunlight; CO
解析：“收集” 用动词 “collect”，主语 “Plants” 是复数，且句子描述客观事实用一般现在时，故 “collect” 用原形；“阳光” 是 “sunlight”（不可数名词），“二氧化碳” 是 “CO ”（常用缩写形式），二者为并列宾语，用 “and” 连接。
答案：rise up; through
解析：“上升” 用 “rise up”，“will” 后接动词原形，故填 “rise up”；“通过（物体内部）” 用介词 “through”，此处表示水分穿过茎部，符合 “through” 的用法，而 “across” 侧重 “从表面穿过”，不符合语境，故填 “through”。
答案：means a lot to; to breathe
解析：“对…… 意义重大” 是固定搭配 “mean a lot to”，主语 “Oxygen” 是不可数名词，视为单数，句子用一般现在时，故 “mean” 用第三人称单数形式 “means”；“需要某物做某事” 是 “need sth. to do sth.”，“呼吸” 用动词 “breathe”，故填 “to breathe”。
答案：gets dark; will take a rest
解析：“夜幕降临” 用 “get dark”，主语 “it” 是第三人称单数，一般现在时中 “get” 用 “gets”；“休息” 是 “take a rest”，句子描述将来发生的动作，用一般将来时 “will + 动词原形”，故填 “will take a rest”。
答案：provide animals with homes
解析：“为…… 提供……” 是固定搭配 “provide sb. with sth.”，“can” 后接动词原形，故 “provide” 用原形；“动物” 用 “animals”（复数表泛指），“居住的地方” 是 “homes”（复数表泛指），符合 “provide animals with homes” 的搭配和语境。
答案：are going to learn
解析：句子中有将来时间状语 “tomorrow”，用 “be going to + 动词原形” 表将来；主语 “We” 是复数，“be” 动词用 “are”；“学习” 用动词 “learn”，故填 “are going to learn”（也可填 “will learn”，“will + 动词原形” 同样表将来，此处 “are going to learn” 更侧重 “计划好的动作”，符合 “学习植物部分” 的语境）。
答案：will grow into
解析：“长成（某种形态 / 事物）” 是固定搭配 “grow into”，句子描述将来发生的变化（种子长成植物），用一般将来时 “will + 动词原形”，故 “grow” 用原形，填 “will grow into”。
答案：Without plants; will be
解析：“没有” 用介词 “Without”，后接名词 “plants”（复数表泛指），注意句首首字母大写；句子描述 “没有植物” 的假设结果，用一般将来时 “will + be 动词”，“be different” 是 “不同的”，故填 “will be”。
答案：will turn into
解析：“变成（颜色 / 形态）” 常用 “turn into”，句子中有将来时间状语 “in autumn”（此处指 “每年秋天”，也可理解为 “将来的秋天”），用一般将来时 “will + 动词原形”，“turn” 用原形，故填 “will turn into”（也可填 “turn into”，一般现在时表客观规律，此处 “will turn into” 更突出 “将来的变化”，符合语境）。
答案：will walk through
解析：“步行穿过（空间 / 区域）” 是 “walk through”，“穿过森林” 用 “walk through the forest”，符合 “through”“从内部穿过” 的用法；句子中有时间状语 “today”（此处指 “今天将要做的事”），用一般将来时 “will + 动词原形”，“walk” 用原形，故填 “will walk through”（也可填 “are going to walk through”，表 “计划好的动作”，与 “了解植物” 的目的呼应，同样符合语境）。
答案：It is known
解析：“众所周知” 的固定表达是 “It is known that...”，所以填 “It is known”。
答案：Where are
解析：对地点 “in the park” 提问用 “where”，原句是 “be going to” 结构，变疑问句时将 “be” 动词 “are” 提前，所以填 “Where are”。
答案：No; there won’t
解析：“Will there be...” 的否定回答是 “No, there won’t.”，所以填 “No; there won’t”。
答案：rather than
解析：“而不仅仅是” 用 “rather than”，表示对比，所以填 “rather than”。
答案：still a good match
解析：“不失为一场好的比赛” 可表达为 “still a good match”，所以填 “still a good match”。
四、完形填空
Passage 1
答案：A
解析：植物的 “叶子车间” 需要 “收集（collect）” 阳光和二氧化碳来进行光合作用，B. 浪费；C. 失去；D. 售卖，均不符合语境，故选 A。
答案：B
解析：植物通过光合作用产生 “糖（sugar）” 作为自身生长的食物，A. 盐；C. 水；D. 牛奶，均不符合科学常识，故选 B。
答案：B
解析：人类和动物 “没有（without）” 氧气无法生存，A. 有；C. 为了；D. 关于，均不符合逻辑，故选 B。
答案：A
解析：“Without plants” 是虚拟条件，此处表示 “我们的世界将会（will）变成一个非常不同且难以居住的地方”，B. 不会；C. 是；D. 不是，均不符合虚拟语气的逻辑，故选 A。
Passage 2
答案：B
解析：在雨林中 “步行（walk）” 穿行符合语境，A. 飞；C. 游泳；D. 跳跃，均不符合实际，故选 B。
答案：A
解析：树叶中的水分蒸发到空中形成 “云（clouds）”，云聚集后形成降雨，B. 雪；C. 风；D. 雾，均不符合 “造雨” 的过程，故选 A。
答案：C
解析：树木 “给予（give）” 动物居住的家和食物，A. 借；B. 借出；D. 拿走，均不符合语境，故选 C。
答案：A
解析：我们要保护植物，确保它们能 “存活（live）” 更久，B. 死亡；C. 工作；D. 玩耍，均不符合语境，故选 A。
五、阅读理解
Passage 1
答案：B
解析：根据 “The first 'workshop' is the Root. Its job is to get water from the soil.” 可知，根部的作用是从土壤中吸收水分，A. 收集阳光；C. 产生糖；D. 把水输送到叶子，均不符合，故选 B。
答案：B
解析：根据 “The Stem acts like a road, carrying water and other important things up to the Leaf” 可知，茎负责把水输送到叶子，A. 根部；C. 花朵；D. 果实，均不符合，故选 B。
答案：B
解析：根据 “In the Leaf workshop, 'workers' are busy during the day. They collect sunlight and CO from the air.” 可知，叶子车间的 “工作者” 收集阳光和二氧化碳，A. 水和糖；C. 氧气和水；D. 糖和二氧化碳，均不符合，故选 B。
答案：C
解析：根据 “Sugar is the food that helps the plant grow” 可知，糖是植物生长的食物，A. 水；B. 二氧化碳；D. 氧气，均不符合，故选 C。
答案：A
解析：根据 “Plants... produce two things: sugar and oxygen. Sugar is the food... while oxygen is released into the air. Animals and humans need this oxygen to breathe.” 可知，植物为动物和人类提供食物和氧气，B. 帮助动物建房子；C. 为人类造雨；D. 从空气中吸收氧气，均不符合，故选 A。
Passage 2
答案：B
解析：根据 “Water from the leaves of the trees evaporates (蒸发) into the air. As more and more water goes into the air, it forms clouds... finally it rains.” 可知，树木通过叶子水分蒸发形成云，云再降雨，A. 直接从叶子倒水；C. 从天空吸收雨水后释放；D. 让其他植物帮忙造雨，均不符合，故选 B。
答案：C
解析：根据 “The trees in the Great Bear Rainforest can live for a very long time - some even live for thousands of years.” 可知，有些树能活数千年，A. 几年；B. 几百年；D. 数万年，均不符合，故选 C。
答案：C
解析：文中提到 “Birds... squirrels... some insects”，未提及狮子（Lions），A. 鸟；B. 松鼠；D. 昆虫，均有提及，故选 C。
答案：B
解析：根据 “They take in CO from the air and produce oxygen, which is necessary for all living beings.” 可知，树木吸收二氧化碳并产生氧气，A. 吸收氧气并产生二氧化碳；C. 使气候更热；D. 破坏动物的家，均不符合，故选 B。
答案：B
解析：文章主要介绍了大贝尔雨林中植物的特殊能力（造雨、存活久等）及其重要性，A. 如何参观大贝尔雨林；C. 动物如何在大贝尔雨林生活；D. 大贝尔雨林的不同树种，均不符合主旨，故选 B。
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