内容正文:
Unit 5 The power of plants 单元测试卷
(不含听力,满分:120 分 考试时间:90 分钟)
班级:________ 姓名:________ 得分:__________
一、完形填空(共 10 小题,每小题 2 分,满分 20 分)
Last term, our school started a "Green Club" for students who love plants. I 1 ______ it at once because I’ve always wanted to learn how to grow my own vegetables.
Every Friday afternoon, we met in the school garden. Our teacher first 2 ______ us about different plants and their needs. Then we started to grow tomato seeds. We put the seeds in small pots with rich soil (土壤) and 3 ______ them every day.
After two weeks, small green shoots (芽) came out. We were so excited! When the plants grew a little taller, we 4 ______ them into bigger pots. Our teacher told us that plants need enough sunlight, so we put the pots 5 ______ the window in the classroom.
One month later, flowers appeared on the tomato plants. We learned that bees help plants make fruit. Soon, small green tomatoes started to grow. We kept 6 ______ the plants and removing the dry leaves.
At the end of the term, we picked our first red tomatoes. They were small but very sweet. We shared them with our classmates. I 7 ______ a lot about how plants grow and why they are important to us. Now I grow some herbs (香草) on my balcony at home. I hope to 8 ______ more plants next year.
Plants give us food, oxygen and beauty. It’s 9 ______ to watch them grow day by day. I believe everyone should try to grow 10 ______small. It’s a fun and meaningful experience.
1.A.joined B.left C.refused D.forgot
2.A.asked B.taught C.answered D.warned
3.A.fed B.cut C.watered D.pulled
4.A.moved B.threw C.turned D.knocked
5.A.under B.beside C.behind D.above
6.A.talking B.watching C.touching D.testing
7.A.missed B.remembered C.learned D.heard
8.A.buy B.sell C.find D.grow
9.A.boring B.funny C.exciting D.difficult
10.A.everything B.something C.anything D.nothing
二、单项填空(共 10 小题;每小题 2 分,满分 20 分)
从每小题所给的 A、B、C、D 四个选项中选出一个可以填入空白处的最佳选项。
1. Plants ______ oxygen for us to breathe every day.
A. produce B. protect C. provide D. prepare
2. ______ are the parts of a plant that grow under the ground and take in water.
A. Leaves B. Stems C. Roots D. Flowers
3. There ______ a lot of trees and flowers in our school garden.
A. is B. are C. was D. were
4. —Look at this big tree! It ______ be over 100 years old.
—Wow, it’s really old and strong.
A. can’t B. might C. must D. need
5. My little sister enjoys ______ flowers in her free time.
A. grow B. grows C. growing D. to grow
6. The leaves of this plant are ______ than those ones. They look much greener.
A. beautiful B. more beautiful C. most beautiful D. the most beautiful
7. —Do you know ______ plants help clean the air?
—Yes, they take in harmful gases and release oxygen.
A. why B. how C. where D. when
8. I planted some sunflower seeds last week, but ______ has come out yet.
A. something B. anything C. nothing D. everything
9. —Let’s go to the botanical garden (植物园) this weekend.
—______ I really want to see the rare plants there.
A. No problem! B. Not really. C. I don’t think so. D. It’s up to you.
10. Plants need sunlight, water ______ soil to grow well.
A. but B. so C. and D. or
三、阅读理解(共 15 小题,每小题 2 分,满分 30 分)
阅读以下三篇短文,从每小题所给的四个选项中,选出一个与短文内容相符的最佳选项。
(A)
Plants are very important to our planet and our lives. Here are five key things they do for us:
1. Produce oxygen: Plants take in carbon dioxide and release oxygen through photosynthesis (光合作用). Without plants, we couldn’t breathe fresh air.
2. Provide food: Almost all the food we eat comes from plants, either directly (like fruits and vegetables) or indirectly (like meat from animals that eat plants).
3. Make medicine: Many medicines are made from plants. For example, aspirin comes from the bark of willow trees.
4. Build homes: Wood from trees is used to make houses, furniture and paper.
5. Keep the environment healthy: Plants help stop soil erosion (水土流失) and keep rivers clean. They also make our cities more beautiful and cool down the air in summer.
We should protect plants and grow more of them to keep our planet healthy.
1. What do plants take in through photosynthesis?
A. Oxygen. B. Carbon dioxide. C. Water. D. Sunlight.
2. Which of the following food comes indirectly from plants?
A. Apples. B. Carrots. C. Beef. D. Rice.
3. Where does aspirin come from?
A. The leaves of apple trees. B. The bark of willow trees.
C. The roots of tomato plants. D. The flowers of sunflowers.
4. How do plants help keep the environment healthy?
A. They stop soil erosion. B. They cool down the air in summer.
C. They keep rivers clean. D. All of the above.
5. What is the main idea of the passage?
A. How plants grow. B. Different kinds of plants.
C. Why plants are important. D. How to grow plants.
(B)
Last summer, I decided to grow carrots with my mom. We bought some carrot seeds and a big pot. First, we filled the pot with good soil. Then we made small holes in the soil and put two seeds in each hole. We covered the seeds with a little soil and watered them gently.
Every day after school, I watered the pot and checked if anything was growing. After about ten days, I saw small green shoots come out. I was so happy! As the plants grew, I removed the weaker ones so that the stronger ones could get more sunlight and water.
Three months later, my mom told me it was time to pick the carrots. We pulled them out of the soil. Some were small, but some were big and orange. We washed them and cooked them for dinner. They tasted so sweet! It was my first time growing vegetables, and I felt very proud. Now I grow lettuce and tomatoes on my balcony too.
1. What did the writer grow with her mom last summer?
A. Tomatoes. B. Lettuce. C. Carrots. D. Sunflowers.
2. How many seeds did they put in each hole?
A. One. B. Two. C. Three. D. Four.
3. When did the small green shoots come out?
A. After about ten days. B. After about one month.
C. After about two months. D. After about three months.
4. Why did the writer remove the weaker plants?
A. Because they looked ugly. B. Because they took up too much space.
C. Because the stronger ones needed more sunlight and water. D. Because they were dead.
5. How did the writer feel about growing vegetables?
A. Bored. B. Proud. C. Tired. D. Worried.
(C)
The rainforest is home to thousands of kinds of plants. Some of them are very special.
Pitcher plants (猪笼草) are one of them. They have special leaves that look like small pitchers (罐子). Inside the pitchers, there is sweet liquid (液体). When insects smell the liquid, they fly into the pitchers. Then they can’t get out, and the plants eat them. Pitcher plants do this because the soil in the rainforest doesn’t have enough nutrients (营养).
Another special plant is the Rafflesia (大王花). It is the biggest flower in the world. It can grow up to one meter wide and weigh over 10 kilograms. But it doesn’t have any leaves or stems. It grows on other plants and gets nutrients from them. The Rafflesia smells like rotten meat to attract insects to help it reproduce (繁殖).
1. Where do pitcher plants get nutrients from?
A. The soil. B. Insects. C. Other plants. D. Sunlight.
2. What does the Rafflesia look like?
A. It has small leaves and stems. B. It is the biggest flower in the world.
C. It looks like a small pitcher. D. It is as light as a feather.
3. Why does the Rafflesia smell like rotten meat?
A. To attract insects. B. To keep animals away.
C. To make itself grow faster. D. To help other plants grow.
4. Which of the following is TRUE about the two plants?
A. Both of them have stems. B. Both of them grow in the desert.
C. Both of them need special ways to get nutrients.
D. Both of them smell sweet.
5. What is the passage mainly about?
A. Rainforest animals. B. Special rainforest plants.
C. How rainforest plants grow. D. Why rainforests are important.
四、阅读还原(共 5 小题,每小题 2 分,满分 10 分)
Plants are amazing living things that help our planet in many ways. 1 ______
First, plants clean the air. They take in harmful gases like carbon dioxide and release oxygen. 2 ______This is why it’s good to have plants in our homes and cities.
Second, plants help keep the soil in place. Their roots grow deep into the ground and hold the soil together. 3 ______ Without plants, rain would wash away the soil and cause floods.
Third, plants provide food and homes for animals. Many animals eat plants, and some animals live in trees or under plants. 4 ______Finally, plants make our planet look beautiful. Flowers and trees add color and life to our world. 5 ______
We should always remember to protect plants and grow more of them.
A. This stops soil erosion.
B. Here are some of the ways they help.
C. We need oxygen to breathe.
D. Without plants, many animals would have no food or homes.
E. They also make our parks and gardens look nice.
五、阅读短文,从方框中选择适当的词并用其正确的形式填空(每词限用一次),(共 10 小题,每小题 1 分,满分 10 分)
arrive, visit, so, what, by, interesting, something, friendly, we, take
Last weekend, my class went to the City Botanical Garden 1 ______bus. We were all excited when we 2 ______ at the garden. A guide met us and was very 3 ______ to us.
First, she showed us a greenhouse with many tropical plants (热带植物). We saw some plants with big leaves and colorful flowers. They were 4 ______ that we took a lot of photos. Then we walked to a vegetable garden. We learned about how different vegetables grow. We even got to pick 5 ______ small and sweet strawberries.
In the afternoon, we 6 ______ a workshop about growing plants. The teacher taught us how to plant sunflower seeds in small pots. We each took a pot home. On the way back to school, we talked about 7 ______we learned. Everyone said it was a(n) 8 ______day.
9 ______ a great experience it was! We all learned a lot about plants and had fun at the same time. I can’t wait to 10 ______ my sunflower grow at home.
六、短文填空(共 10 小题,每小题 1.5 分,满分 15 分)
The world is full of amazing plants. My favorite plant is mint (薄荷). I grow it on my balcony.
Mint is a kind of herb. It has small, green 1 ______(leaf) and it smells very fresh. It grows best in a warm and sunny 2 ______ (place). I water it every day and put it near the window so it can get enough sunlight.
I started growing mint last month. First, I bought a small mint plant from a shop. Then I 3 ______ (put) it in a big pot with rich soil. Every day, I 4 ______ (look) at it and watched it grow. Now it has grown a lot, and I can pick its leaves to make tea.
Mint tea is very 5 ______(health). It can help me relax after a busy day. I often make it for my family too. They all like it.
I love mint because it’s easy 6 ______(grow) and useful. It teaches me that even small plants can bring us 7 ______ (happy). I want to grow more herbs like basil (罗勒) and lavender (薰衣草) next year.
Last week, my friend Lily came to my home. She was 8 ______ (surprise) to see my mint plant. She asked me to teach her how 9 ______ (grow) it. I was happy to share my knowledge with her. Growing plants is a fun hobby, and I hope more people will enjoy 10 ______ (it).
七、书面表达(共 1 题,满分 15 分)
请你根据以下提示,写一篇短文介绍你最喜欢的植物。
提示:
1. 你最喜欢的植物是什么;
2. 它的样子和生长环境;
3. 你为什么喜欢它。
要求:1. 可围绕主题适当发挥;2. 80词左右。
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参考答案
一、完形填空
1.A 2.B 3.C 4.A 5.B 6.B 7.C 8.D 9.C 10.B
二、单项填空
1-5 ACBCC 6-10 BACAC
三、阅读理解
(A)
1.B 2.C 3.B 4.D 5.C
(B)
1.C 2.B 3.A 4.C 5.B
(C)
1.B 2.B 3.A 4.C 5.B
四、阅读还原
1.B 2.C 3.A 4.D 5.E
五、选词填空
1.by 2.arrived 3.friendly 4.so 5.something 6.visited 7.what 8.interesting 9.What 10.watch
六、短文填空
1.leaves 2.place 3.put 4.looked 5.healthy 6.to grow 7.happiness 8.surprised 9.to grow 10.it
七、书面表达
My favorite plant is the sunflower. It has a tall, strong stem and big, yellow petals around a brown center. Sunflowers love warm places and need lots of sunlight to grow well.
I like sunflowers because they always face the sun, which makes them look happy and energetic. They can grow very tall, sometimes even taller than me! Their seeds are delicious too—we can roast them and eat them as a snack. Growing sunflowers teaches me to be positive and follow the light.
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