Lesson 8 Why Are Plants Important？
一、单项选择
1. —What can you see ________ the tree
—Aha! Koalas! Seven of them!
A. on B. in
C. above D. over
2. Thanks to our teachers. ________ their help, we couldn't make such great progress.
A. Without B. With
C. About D. For
3. The Monkey King can turn himself ________ seventy two different animals and objects.
A. down B. on
C. off D. into
4. She told us that by the end of the year, she was very ________ about the bullying(欺凌) and became ill.
A. pleased B. worried
C. satisfied D. amazed
5. —Our head teacher is responsible for his work. He spends most of his time with us.
—________ He always communicates with our parents in his free time.
A. I hope so! B. What
C. That's for sure. D. Why
6. Summer camping is a great experience for students. It is good to help them ________.
A. wake up B. get up
C. hurry up D. grow up
7. It's bad for your eyes ________ computer games too much.
A. play B. playing
C. to play D. plays
8. Kaili is one of the most beautiful ________ in Guizhou.
A. place B. cities
C. town D. county
9. The scarf which is ________ silk ________ soft and comfortable.
A. made from；feel B. made of；feels
C. made in；smell D. made up of；smells
10. Are there many trees ________？
A. where do you meet B. where you meet
C. you meet where D. you meet there
二、连词成句
11. play, the, under, shall, tree, we
_______________________________________________________
12. fulfill, basic, what, needs, our, can
_______________________________________________________
13. a, it's, have, pleasant, trip, to
_______________________________________________________.
14. ways, help, in, trees, many, people
_______________________________________________________.
15. look, confidence, you, beautiful, makes
_______________________________________________________.
三、阅读理解 (词数：约260；建议用时：6分钟)
Today there are 6.4 billion people on the earth. By the year 2050 there may be 12.5 billion. There are many people to feed. We need more and more food.
One way to produce more food is growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic(遗传的) material. Foods from plants grown in this way are called genetically modified (转基因的) foods, or GM foods.
By changing the genetic material of a plant, it is possible to make new plants. Scientists make plants which are strong against plant diseases (疾病). They can also help in our diseases: a kind of rice will be grown, for example, which stops people becoming blind.
Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.
GM plants are not natural. No one knows how good or bad they are. Making GM foods is only one way of feeding people in 2050.There are strong feelings against them because they are unnatural. They may feed people, but then hurt them or their children later. But both rich and poor countries are interested in their uses, and they are not going to go away. In 2050, we may think differently about them.
16. There may be ________ billion people by the year 2050 on the earth.
A. 6.4 B. 12.5
C. 18.5 D. 20.5
17. How have scientists been able to change plants more quickly
A. By making the best plants.
B. By asking the farmers to grow plants.
C. By changing planting environment.
D. By changing their genetic material.
18. Why do rich countries produce GM foods
A. Because they are easy to grow and bring in more money.
B. Because they are easy to grow and very cheap.
C. Because they help produce more food.
D. Because they are the best plants.
19. Which of the following is NOT true according to the passage
A. GM plants are not natural.
B. GM plants are strong against plant diseases.
C. Everyone knows how good or bad GM plants are.
D. GM foods may hurt people or their children later.
20. What can we learn from the passage
A. GM foods will disappear one day in the future.
B. GM foods will not disappear in the future.
C. People will not be interested in GM foods.
D. People will have to stop eating GM foods.
答案
一、1. B 点拨：考拉不是树上长出来的，故用in。
2. A 3. D 4. B 5. C 6. D
7. C 点拨：结构分析法。句中it为形式主语，真正主语是后面的动词不定式。
8. B 点拨：one of 后接名词复数。
9. B 10. B
二、11. Shall we play under the tree
12. What can fulfill our basic needs
13. It's pleasant to have a trip
14. Trees help people in many ways
15. Confidence makes you look beautiful
三、16. B 17. D 18. A 19. C
20. B 点拨：由文章最后两句But both rich and poor countries are interested in their uses, and they are not going to go away. In 2050, we may think differently about them. 可知答案。(共7张PPT)
一、单项选择
1. —What can you see ________ the tree
—Aha! Koalas! Seven of them!
A. on B. in
C. above D. over
2. Thanks to our teachers. ________ their help, we couldn't make such great progress. (中考·新疆生产建设兵团)
A. Without B. With
C. About D. For
B
A
【点拨】考拉不是树上长出来的，故用in。
3. The Monkey King can turn himself ________ seventy- two different animals and objects. (中考·贵阳改编)
A. down B. on
C. off D. into
4. She told us that by the end of the year, she was very ________ about the bullying(欺凌) and became ill.
A. pleased B. worried
C. satisfied D. amazed
D
B
5. —Our head teacher is responsible for his work. He spends most of his time with us.
—________ He always communicates with our parents in his free time. (中考 黄冈)
A. I hope so! B. What
C. That's for sure. D. Why
6. Summer camping is a great experience for students. It is good to help them ________. (中考 大连)
A. wake up B. get up C. hurry up D. grow up
C
D
7. It's bad for your eyes ________ computer games too much.
A. play B. playing
C. to play D. plays
8. Kaili is one of the most beautiful ________ in Guizhou. (中考 黔东南)
A. place B. cities C. town D. county
C
B
【点拨】结构分析法。句中it为形式主语，真正主语是后面的动词不定式。
【点拨】one of 后接名词复数。
9. The scarf which is ________ silk ________ soft and comfortable.
A. made from；feel B. made of；feels
C. made in；smell D. made up of；smells
10. Are there many trees ________？
A. where do you meet B. where you meet
C. you meet where D. you meet there
B
B
二、连词成句
11. play, the, under, shall, tree, we
______________________________________________
12. fulfill, basic, what, needs, our, can
______________________________________________
13. a, it's, have, pleasant, trip, to
_______________________________________________.
14. ways, help, in, trees, many, people
_______________________________________________.
Shall we play under the tree
What can fulfill our basic needs
It's pleasant to have a trip
Trees help people in many ways
15. look, confidence, you, beautiful, makes
______________________________________________.
Confidence makes you look beautiful(共19张PPT)
Plant a Plant!
Unit 2
Why Are Plants Important
Lesson 8
同学们，上一课学习的单词、短语和句型你们都掌握了吗？现在大家来检验一下，点击下面的音频开始听写吧！
Answer the following question:
1. How many kinds of trees do you know
2. Do you know the importance of trees
THINK ABOUT IT
·What plants grow near your home
·Why do we need trees
Danny, Jenny and Brian are
walking in a forest.
Jenny: I love this forest. There
are so many trees and plants.
The air is always clean and fresh.
Brian: Yes. Trees and other plants help clean the air.
Jenny: That’s true. It’s pleasant to walk in the forest.
When the weather is sunny and hot, you can sit in the
shade under a tree. It’s nice and cool.
Danny：I’m hungry! Maybe I can eat a plant!
Brian：Sure, Danny! Look，there
is an apple tree over there!
Danny：Is there a donut tree
Brian：Donuts don’t grow on trees!
Jenny：Trees and other plants are important to people.
They help us fulfill our basic needs.
Brian：That’s for sure. People use trees and other plants in
many ways. The trees and plants take energy from the
sun and turn it into food. Medicine and clothing are
also made from trees and plants.
Jenny：The forest is important to animals, too. Many animals
live in the forest and eat the fruit from the trees. They
eat other plants, too.
Brian: And plants cover the soil. That way, the wind and
water don’t carry the soil away. Plants also make
everything look beautiful.
Danny: In a word , we can’t live without plants！
It’s pleasant to walk in the forest.
在森林里散步令人愉快。
考向一
在这句话中，It作形式主语。It is ＋ adj. ＋
(for sb. )to do sth. 意为“做某事(对于某人来说)是……”。
eg：It is important to listen to teachers carefully.
认真听老师讲是重要的。
知识点
1
典例
________ is really hard ________ them to climb such a high mountain. (白银)
A．This; to
B．It; to
C．This; for
D．It; for
D
考向二
辨析 pleasant与pleased
pleasant adj.
令人愉快的 既可作表语也可作定语，多用于修饰事物，表示“某事(或某物)令人愉快”。 This is a pleasant journey.
这是个令人愉快的旅行。
pleased adj.
愉快；高兴；满意 一般不作定语，多形容人，表示“某人对某事(或某人)感到高兴或满意”。 If you jump the queue, others will not be pleased.
如果你插队，别人会不高兴的。
in a word总而言之，相当于in one word
知识点
2
eg：In a word, I can’t go out as I have many things
to do. 总而言之， 我不能出去， 因为我有许
多事情要做。
考向
与word有关的其他短语：
have a word with
与……谈一谈 Can I have a word with you？
我能和你谈一谈吗？
have words with. . .
与……争吵 He had words with his wife last night. 昨晚他和他的妻子吵了一架。
in other words
换言之；换句话说 In other words, you’ll come instead of him. Right
换句话说，你将代替他来。对吗？
Read the lesson and tick the items mentioned.
□People can eat plants or use them as medicine.
□Plants help make the air clean and fresh.
□Many animals live in the forest.
□Books，paper，pencils and erasers all come from plants.
□Animals eat the fruit from the trees.
□The plants cover the soil and can stop the dust.
□When the weather is sunny and hot，people can sit in the
shade under a tree.
□The plants make everything look beautiful.
□People use wood from trees to build houses and furniture.
Let's Do It !
√
√
√
√
√
√
√
2) Complete the passage with the correct forms of the
words in the box.
There are many trees and plants. It’s ________to walk in
the forest. When the weather is sunny and hot，you can sit in
the _______under a tree. Trees and other plants are one of our
________needs for life. Many things are made from trees and
plants. Most animals live in the ________and eat the fruit from
the trees. And plants ________the soil. That way, the wind
and water don’t carry the soil away.
pleasant
Let's Do It !
shade
basic
forest(s)
cover
basic shade forest cover pleasant
3) Work in pairs. Think about why we need plants.
Discuss it and fill in the mind map.
You can use some ideas from Activity 1.
Let's Do It !
Environment：
____________________
Clothing and school things：
_____________________
Shelter：
____________________
Food or medicine：
____________________
Functions of trees (plants)
一、根据提示及句意完成句子
1．Food is our________(基本的) need.
2．They have a________(令人愉快的) trip.
3．People like to have a rest in the________(阴凉处)of the tree.
4．Trees and other plants help us________(满足) some needs.
5．The air is always clean and fresh in the________(森林)．
basic
pleasant
shade
fulfill
forest(s)
二、用方框中所给短语的适当形式填空
6． __________, man can't live without water.
7．The storm ________ the house ________．
8．What he said _______________ us.
9．The trees ________________the sun and turn it into food.
10．_______________ three times a day and you will be well.
In a word
be important to take the medicine carry...away in a word take energy from
carried away
is important to
take energy from
Take the medicine
三、连词成句
11．play, the, under, shall, tree, we
______________________________________________
12．fulfill, basic, what, needs, our, can
______________________________________________
13．a, it's, have, pleasant, trip, to
______________________________________________.
14．ways, help, in, trees, many, people
______________________________________________.
15．look, confidence, you, beautiful, makes
______________________________________________.
Shall we play under the tree
What can fulfill our basic needs
It's pleasant to have a trip
Trees help people in many ways
Confidence makes you look beautiful
本节课我们主要学习了以下重点内容：
（1）重点短语：in a word
（3）重点句式：It is + adj. + (for sb.) to do sth.
1.熟记本课时的词汇
2.完成本课时的课后作业(ppt+word)Lesson 8 Why Are Plants Important
Ⅰ.用所给单词的适当形式填空。
1. It's pleasant ____________(work) with you.
2. She left without ____________(say) a word.
3. Plants can help ____________(clean) the air.
4. People and other animals need food ________(live).
5. He lost his key. It made him ________(stay) in the cold to wait for his wife's return.
Ⅱ.单项选择。
6. There are some apples ________ the tree and some birds are singing ________ the tree.
A. on; on B. in; on
C. on; in
7. Books are made ________ paper and paper is made ________ wood.
A. of; of B. of; from
C. from; of D. from; from
8.—It's difficult for me ________ the homework in such a short time.
—Come on! I'm sure you can.
A. finished B. to finish
C. will finish D. finish
9. Without plants, water and wind can ________ the soil ________.
A. take; on B. carry; off
C. carry; away D. blow; away
10. Tom takes lots of exercise every day and he is always full of ________.
A. courage B. knowledge
C. change D. energy
Ⅲ.连词成句。
11. him, this, is, book, to; important
_______________________________________________________.
12. take, we, from, can, milk, and, energy, eggs
_______________________________________________________.
13. walk, park, it's, in, to, the, pleasant
_______________________________________________________.
14. we, live, word, can't, in, without, a, plants
_______________________________________________________.
15. plants, near, home, what, grow, your
_______________________________________________________
Ⅳ.任务型阅读。
Plants are very important. Plants can make food from air, water and sunlight. Animals and man cannot make food from air, water and sunlight. Animals can get their food by eating plants and other animals. Man gets his food by eating plants and animals, too. Soanimals and man need plants in order to live. This is why there are so many plants around us.
There are two kinds of plants：flowering plants and non flowering plants. Almost all the trees around us are flowering plants. You can know some trees from their flo wers and fruit. Non flowering plants do not growflowers. You can not see many non flowering plants around you.
If you look carefully at the plants around you, you will find that there are many kinds of plants. Some plants are large and some are small. Most of them are green. Thanks to the plants around us, we can live on earth.
16题完成句子; 17～18题简略回答问题; 19题找出并写下全文的主题句; 20题将文中画线句子译成汉语。
16. Animals and man need plants________________________________.
17. Can animals and man make food from air, water and sunlight
________________________________________________________
18. How many kinds of plants are there in the world according to the passage
________________________________________________________
19. ________________________________________________________
20. ________________________________________________________
答案
Ⅰ.1.to work 2.saying 3.(to) clean 4.to live 5.stay
Ⅱ.6.C 点拨：本身生长在树上的东西用on; 外物落在树上用in。
7. B 点拨：从制成品中能看出原材料用be made of; 从制成品中看不出原材料用be made from。
8. B 点拨：It is＋形容词＋for sb.＋to do sth.是固定句型，意为“对某人来说做某事是……的”。
9. C 10.D
Ⅲ.11.This book is important to him
12. We can take energy from eggs and milk
13. It's pleasant to walk in the park
14. In a word, we can't live without plants
15. What plants grow near your home
Ⅳ.16.in order to live 17.No, they can't. 18.Two./Two kinds.
19. Plants are very important.
20. 我们能生活在地球上，多亏了我们周围的植物。
