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Unit 5 The power of plants 单元自测（新教材外研版）
学校:___________姓名：___________班级：___________分数：___________
一、单项选择（本大题共15 题，每题1 分，共15 分）
1．—________ you ________ free tomorrow?
—No. I ________ free the day after tomorrow.
A．Are; going to be; will
B．Are; going to; will
C．Are; going to; will be
D．Are; going to be; will be
2．— Why do kids always have lots of questions to ask?
—Well, for kids, it’s________ to be interested in everything around them.
A．special
B．important
C．natural
D．modern
3．We ________ the national flag every Monday morning when the sun ________ in the east.
A．rise; raises
B．raise; rises
C．raise; raises
D．rise; rises
4．It’s ________ to see a large sports field. All the students are ________ at it.
A．amazing; amazing
B．amazing; amazed
C．amazed; amazing
D ．amazed;
amazed
5．—It’s not enough to learn English ________ the classroom.
—Right. The best way of learning a language is through using it in real life.
A．within
B．by
C．without
D．against
6．— What’s your favorite subject, Bob?
— Science. We learn to ________ sunlight with special mirrors (镜子). It feels like magic.
A．count
B．break
C．discover
D．collect
7．There _________ an important (重要的) meeting in the company (公司) tomorrow.
A．is going to have B．will have
C．is going to be
D．are going to be
8．—Grandpa, you look so well. What do you think is the ________ to keeping healthy?
—Keeping a good mood (心情).
A．key
B．answer
C．unit
D．call
9．—I like to drink orange juice in the morning.
—Me too! I usually ________ it with some water to make it less sweet.
A．spread
B．save
C．mix
D．change
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10．—Wow, you have a beautiful garden.
—Thank you. I like planting flowers, and it’s fun to watch them _________ .
A．break
B．fall
C．grow
D．climb
11．I ________ to her party if it ________ tomorrow.
A．don’t go; will rain
B．don’t go; rains
C．won’t go; will rain
D ．won’t go;
rains
12．—Our school is going to have an art show this weekend.
—Wow! That’s really good ________.
A．sugar
B．advice
C．news
D．rain
13．People like chatting and relaxing in the teahouse, so drinking tea is a way of ________.
A．saving
B．connecting
C．researching
D．feeding
14．—Would you like to fly kites with me tomorrow?
—Sorry. I ________ my grandparents tomorrow.
A．visit
B．visited
C．was visiting
D．will visit
15．I’m interested ________ nature and often watch birds, take photos and ________ plants.
A．about; water
B．in; collect
C．with; make
D．for; see
二、完形填空（本大题共10 题，每题1 分，共10 分）
Are you looking at me? Do you know me? I’m a dodo! You may think I’m just a character in Alice’s
Adventures in Wonderland.
16
, there used to be thousands of us-for real. But now you can only see us in
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.
We lived on an
18
in the Indian Ocean. In the happy old days, there was
19
food to eat.
All the other animals were
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. What a peaceful and safe life!
However, in 1598, humans
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. They cut down the trees and our lovely
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was gone.
They
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us because we were slow and couldn’t fly. What’s more, their pigs, cats and dogs ate our eggs.
As a result, we soon died
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.
So today we are standing in museums around the world. When you see us, please remember our sad story.
The world is
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of fantastic animals. Please try your best to help them. Make them as happy as a clam,
not as dead as a dodo.
16．A．Quickly
B．Finally
C．Actually
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17．A．zoos
B．museums
C．libraries
18．A．island
B．oxygen
C．ending
19．A．a lot
B．so many
C．plenty of
20．A．awake
B．friendly
C．amazing
21．A．arrived
B．changed
C．recognised
22．A．school
B．forest
C．workshop
23．A．mixed
B．hunted
C．treated
24．A．of
B．in
C．out
25．A．full
B．lost
C．popular
三、阅读理解（本大题共15 题，每题2 分，共30 分）
A
Do you like to drink orange juice for breakfast? Orange juice is a wonderful drink! It is sweet and tasty. It
can help keep you healthy, too. Let’s find out how orange juice gets to your breakfast table!
Orange trees grow in warm (温暖的) and sunny places. You can often find them near rivers because they
need lots of water to grow. Some orange trees can grow to about 30 feet (英尺) high! In the spring, the trees have
white flowers. Later, these flowers change into oranges. An orange tree can grow about 1,200 oranges in a year!
When the oranges are big enough, farmers pick (采摘) them by hand. Sometimes they use machines (机器) to pick
oranges. Then they send the oranges to a juicing plant (榨汁厂).
What happens to the oranges at the juicing plant? First, workers squeeze the oranges, and get the juice. They
put the juice into bottles. Then they move the bottles onto big trucks. Finally, the orange juice is ready to go to
stores. People can buy and enjoy the tasty juice!
根据语篇内容，选择最佳选项。
26．Orange trees are often near rivers because ________.
A．it’s easy to pick oranges there
B．they need lots of water to grow
C．the river can keep the trees clean
27．How many oranges can an orange tree grow in a year?
A．About 30.
B．About 300.
C．About 1,200.
28．How do farmers pick oranges?
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A．They always use machines.
B．They pick small oranges by hand.
C．They pick oranges by hand and by machines.
29．Which of the following is TRUE?
A．Orange trees grow in warm and sunny places.
B．In the spring, the trees have orange flowers.
C．The workers put the oranges into bottles.
30．Where can you read this passage?
A．In an art book.
B．In a biology book.
C．In a story book.
B
Hello, I’m Jenny. I’m 13 years old. I live with my parents in a big city. I always study hard on weekdays. My
grandparents live on a farm and I often visit them on weekends. They raise(养)many kinds of animals—cows,
sheep, pigs, dogs, chickens, etc. (等等). I like to play with them because playing with them makes me happy.
One day, I see a little duck. It seems he has no family nor friends. He often walks alone(独自). He is cute
and I call him Tom. I want to take care of(照顾) him. I often give him some fish and play with him. Little by little,
Tom becomes friendly to me. Then, on one Saturday morning, when Tom sees me on the farm, he runs up to me
like a puppy(小狗). He loves walking after me. We sit together and read books. We both feel happy.
One Saturday evening, my grandfather asks me, “Why does that little duck like you so much?” “Because he
can feel my love, Grandpa,” I answer happily.
Do you have an animal friend?
31．What does Jenny often do on weekends?
A．She studies hard.
B．She does her homework.
C．She goes to see her grandparents.
D．She reads books.
32．Why does Jenny like to play with the animals on the farm?
A．Because the animals need her help.
B．Because she wants to give them good food.
C．Because she wants to make friends with Tom.
D．Because playing with them makes her happy.
33．Before the little duck meets Jenny, he ________.
A．often walks with his mother
B．sometimes walks after her on the farm
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C．doesn’t have any friends or family
D．often gets good food from her
34．Jenny doesn’t ________ Tom.
A．play with
B．read books with
C．give some fish to
D．go hiking with
35．Why does Jenny write this passage?
A．To tell us about her grandparents’ farm. B．To learn more about animals.
C．To help people make friends.
D．To ask people to love animals.
C
Most plants need sun and water to grow. In the desert, there is a lot of strong sunlight, but not much rain. It
may not rain for a long time. When it does rain, the water dries up fast. So, desert plants must use water carefully to
live in the hot, dry desert.
Many kinds of cactuses live in the desert. Most have sharp spines. These spines are a type of leaf (一种叶子).
Some spines are short. They can help shade (遮住光线) the cactuses from the hot sun. Some spines are long. They
can help rainwater go down to the roots.
To get water quickly, cactus roots do not need to go deep into the earth, but they go far away. When it rains,
the roots grow fast. This helps the cactuses take in more water.
Cactuses keep the water inside their stems. The stems can get bigger to hold (储存) more water.
Cactuses use water slowly. That helps them live when there is no rain. We can learn a lot from cactuses about
how to save water and use it wisely!
根据材料内容选择最佳答案。
36．What does Paragraph 1 talk about?
A．When it rains in the desert.
B．How plants live in the desert.
C．What desert plants need to grow.
D．Why desert plants must use water carefully.
37．What can the long spines of cactuses do?
A．Get more sun.
B．Make roots grow strong.
C．Shade the cactus from the hot sun.
D．Help rainwater go down to the roots.
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38．第三段中划线单词deep 的中文意思是“________”。
A．硬的
B．脆的
C．深的
D．高的
39．Cactuses keep the water inside their ________.
A．roots
B．stems
C．spines
D．leaves
40．What’s the main purpose (主要目的) of the passage?
A．To ask us to save water.
B．To tell us about cactuses.
C．To share a picture with us.
D．To teach us how to live in deserts.
四、单词拼写（本大题共10 题，每题1 分，共10 分）
41．Where are my ________ (钥匙)? I can’t find them.
42．The first class in that school begins at a ________ (一刻钟) past eight.
43．Don’t ________ (混合) the two together.
44．But I never put too much ________ (糖) in my milk because it’s bad for my body.
45．These types of clothes show the traditional ________ (文化) of our country.
46．Daniel likes ________ (收集) many paintings of horses for the coming year.
47．This kind of sports shoes is very ________ (受欢迎的) with students because they’re comfortable.
48．Today, we are talking about ________ (健康).
49．My grandparents have a beautiful house with a big ________ (院子).
50．Baby pandas are different from ________ (成年的) pandas.
五、选词填空（本大题共10 题，每题1 分，共10 分）
阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺，意思完整。每空限填一词，每词限
用一次。
they, need, for, because, important, grow, when, kind, wild, wet
Tea plants
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in the south of China. The
52
tea plants can be 9 meters tall. But workers
in the tea garden keep the tea plants only 0.9 to 1.2 meters tall,
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it is easy for workers to get the leaves
from them at this height (高度).
Tea plants like a warm and
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climate. They grow buds (芽)
55
it is above 10℃. The
best temperature (温度) for
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to grow is 20℃~25℃. And enough (充足的) rain is
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for the
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tea plants. Too much or too little is not so good. They
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enough light too. A tea plant can live for a very
long time. Some can even live over 100 years. There are six
59
of tea in China. Many Chinese people
like drinking tea. They think it’s good
60
their health.
六、任务型阅读（本大题共5 题，每题1 分，共5 分）
根据短文内容，完成图表中所缺信息。
Most people love animals because they are useful in many ways.
There are many kinds of animals in the world. Some animals, such as wolves, pandas and foxes live in big
forests. They are called wild animals. People should stay away from (远离)
them, but some of them are afraid of
people. We can only watch them in the zoo. Some animals, like cows and dogs, live with people. They are called
domestic animals(家畜).
Animals are important to us. In the past, people killed wild animals for fur and meat. However, people have
now stopped from killing wild animals. Domestic animals can give us food and can also do some farm work for people.
People get meat from sheep and pigs. From cows, we get milk. Horses can take us to other places. It is clear that we
can’t live without animals. Let’s save animals now. They are our best friends.
Animals—The best friends of people
Kinds of animals
Wild animals
●Live in big
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.
●Most of them are scary, and some of them are
afraid of people.
●We can only watch them in the zoo.
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animals
Live with people.
Animals
are
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to people
In the past, people made money by killing wild animals for
64
and meat, but now people have stopped doing that, because that’s not
right.
Domestic animals give us food, and also do some
65
work.
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七、短文填空（本大题共10 题，每题1 分，共10 分）
根据短文内容及首字母提示，填写所缺单词，使短文意思完整。每空限填一词。
Do you like eating bananas? They taste good and you don’t have to wash them before eating. However,
British scientists say that the fruit may d
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out by 2050.
One reason for this is climate (气候) change. Shouldn’t bananas grow more e
67
if it’s hotter outside?
In fact, the perfect temperature (温度) for growing bananas is between 24°C and 32°C．If it keeps r
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, ten
of the countries, including India, the world’s biggest producer of bananas, will p
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fewer bananas.
A
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danger to bananas is diseases. Unlike other plants, the bananas we grow come from shoot
cuttings (插条) but not seeds. This m
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that all banana plants have the same genotype (基因型). In other
words, if a disease is able to kill one plant, it could kill them a
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. For example, Panama disease is terrible. If
one banana plantation gets the disease, it will t
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30 years before it is able to grow bananas again.
As a r
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, we need to do something to protect banana plants. First, the governments (政府) should try
their best to s
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scientists in finding new ways to protect banana plants from diseases. Second, it’s
necessary to improve farming practices to make sure banana plants have better growing conditions (条件).
We hope that bananas will still be around in the future and continue to be a delicious and popular fruit.
八、书面表达（10 分）
76．假如你是李华，你的外国笔友Eric 听说植物在中国传统文化中具有特殊意义，请你给他写一封信。
介绍一种具有文化意义的植物——竹子。请根据导图和如下提示，完成这封信。
注意：
1.书信必须包括所有以下要点，并适当发挥。
2 .文中不得出现真实的人名和校名：
3.词数60 左右：开头和结尾已给出，不计入总词数。
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Dear Eric,
I’m glad to introduce bamboo to you. In China, bamboo has a special meaning. ____________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
Yours,
Li Hua
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