Unit 2 Topic 3 What can we do to protect the environment
Section D 同步练习
一、选择题。
( ) 1. Help others whenever you can _____ you’ll make the world a nicer place to live in.
A. or B. and C. but D. while
( )2. Cross the road carefully, ________ you’ll keep yourself safe .
A. so B. or C. but D. and
( ) 3. Hurry up, ________ you’ll be late for the concert .
A. or B. so C. but D. and
( ) 4. ---Tell us something about Canada, OK?
--- I’m sorry. ________ Jack _______ I have ever been there.
A. Either, or B. Not only, but also
C. Both, and D. Neither, nor
( ) 5. I always enjoy visiting London, ______ I wouldn’t like to live
there.
A. because B. so C. but D. and
二、填上合适的连词。
1. Recycling can protect the environment, _____ it can save money, too.
2. Some things we have done are good for the earth _____ some are bad.
3. We should do everything to protect it, ________ we’ll be punished and lose our home.
4. People produce power from coal, ___ it is very dirty and causes acid rain.
5. The train can reach a top speed of 431 km per hour, ___ it is quick for you to arrive in Beijing.
6. Think it over, _____ you’ll work out the math problem. (2013)
7. Ben was busy taking a training class, ____ we had to wait for him for half an hour. (2012)
8. _____ you ____ your brother can join us. We want one of you. (2010)
9. We have to get up at 7:15 tomorrow morning, ____ we will be late for the 7:40 train. (2009)
10. — I’m afraid I can’t go to the party tomorrow.
— _______ you told me you would. What’s happened? (2008)
三、写作题。
21世纪的今天，经济发展了，社会进步了，汽车多了，工厂更多了……可是随之而来的环境问题也多了。作为一名初中生，你有何感想？以“Let’s be a greener person!”为题，写一篇文章呼吁大家行动起来做环保卫士，关爱我们共同的地球家园。字数：80词左右。
温馨提示：1、短文中请勿使用真实姓名、地点或所在学校名字。
2、这些词或许对你有帮助：pollution , protect, environment, plant…
Let’s be a greener person!
答案：
一、
BDADC
二、
1.and 2.while 3.or 4.but 5.so 6.and 7.so 8.Either or 9.or 10.But
三、范文：
Let’s be a greener person!
With the development of our society, there is more pollution on earth. Our earth is in danger! We must save our earth! So it’s our duty to be a greener person.
As a student, we should try to spread the message about protecting the environment. We must reuse and recycle something useful. We should reduce any kind of pollution. It’s important to save energy and plant more trees.
In a word, if we can do something good for our earth, it will become greener and nicer. Let’s be a greener person!
课件25张PPT。Unit 2 Loving Our Planet
Topic 3 What can we do to protect the environment Section D仁爱科普 九上andwhile orbutPresentationCompound Sentencebutso orwhile for andas well asneither…nor…not only…
but also…both…and…either…or1、表示顺承、并列、递进关系的并列连词
and和，both...and...……和……都，as well as也，not only...but also...不但……而且……，neither...nor...既不……也不……等。
My father bought me a present, and I like it very much.
He can speak not only English but also French.
特别提醒：
and连接的两个并列成分的肯定句变为否定句时，and要变成or。
I can’t sing or dance.2、表示转折和对比关系的并列连词
but但是，yet然而，while而
Lucy likes red while Lily likes white.
The doctors tried to save the patient, but they failed.
= Although the doctors tried to save the patient, they failed.
尽管医生们尽力抢救那个病人，但是失败了。3、表示选择关系的并列连词
either...or...要么……要么……，or或者、否则
Study hard, or you’ll fail the exam.
Either you or he has made the mistake.4、表示因果关系的并列连词
so所以、因此，for因为
Kate was ill, so she didn’t go to school.
It must have been wet last night, for the ground is wet.1. Study hard, you will pass the exam.(2019 安顺)
A. so B. or C. but D. and
2. Think of a number, don't tell me what it is.(2019 沈阳)
A. nor B. so C. or D. but
3. Don’t run in the classroom, you may hurt yourself.(2019 陕西)
A. and B. or C. but D. so
4. Practice more, ________ you'll do better in playing chess.(2019 重庆)
A. but B. and C. when D. afterDDBBDLet’s do 5. Be quick, we’ll be late for school.(2019 呼和浩特)
A．and B．but C．or D．so
6. At school, we are taught knowledge how to behave well. (2019 青岛)
A. neither; nor B. either; or C. not only; but also D. not; but
7．I have only two tickets for TF Boys’ concert． you he can go on
with me．(2019 广东)
A．Either… or B．Neither… nor C．Both… and D．Not only… also
8. Going to the movies is good, I really only like listening to music.(2019 安徽)
A. and B. but C. so D. orCCABLet’s doFunctions greenershut off EasierlouderreachThe Amazon rainforests——“Forests are the lungs of the earth”It removes carbon dioxide and makes oxygen. There are many kinds of insects there. If they bite you, you may lose your life.[r??mu?v][ba?t][??nsekt]Watch the video and talk about it.In order to get money or farmland, people cut down the trees in the rainforests. As a result, the world climate may change and many birds and animals may be in danger. Watch the video and talk about it.Luckily, many people have taken measures to do something. The volunteer planters around the world are planting new trees to replace destroyed area.[?pl?nt?r][r??ple?s]Watch the video and talk about it.Read the passage on Page 49, then find the topic sentence of each paragraph. 1 _______________________________2 _______________________________
_______________________________
3 _______________________________Forests are the lungs of the earth.These young men and women face many difficulties when they plant new trees.Tree planters are changing the world.Scanning1. Forests can _______________ , so they are the lungs of the earth.
A. help us breathe
B. stop the wind from blowing the earth away
C. remove CO2 from the air and to make oxygen
D. provide wood for many countries
2. Tree planters plant different kinds of trees because ___________ .
A. they would like beautiful forests
B. they want to change the world
C. they love their work
D. animals and birds can live in the forests√√Read the passage and answer the question.Reading task3. What difficulties do tree planters face when they work?
A. Few insects may bite them.
B. It can be safe for them to work in the mountains
C. The bags of small trees are so heavy that they can’t carry them.
D. The weather may be very terrible.
4. What will happen if we do not plant new forests?
A. New Zealand, Canada and Brazil will have no wood to build houses
B. The forests will become less and less. We can’t breathe without them.
C. Volunteers around the world are free in their holidays.
D. The planters have no chance to work in the mountains.
5. The main purpose of this passage is ________________________ .
A. to advise young volunteers to plant more trees
B. to tell us to protect the forests
C. to introduce how difficult the tree planting
D. to teach young men and women to plant trees
√√√bite sb on the +身体部位
There are many insects that ___ them___ their legs while they work.
even though = even if, 即使，尽管，虽然
_____________tree planting is very difficult, they love their work.
so that =in order that，为的是，目的是
They plant different types of trees ________birds and animals can live in the forests.
bite on Even thoughso thatLanguage points1.How do you understand “Forests are the lungs of the earth”?Forests can remove carbon dioxide from the air and make oxygen. Reading task2. What difficulties do tree planters face when they plant trees ?
(1)The weather may be very hot and dry or it may be very cold and wet.
(2)There are often many insects that bite these planters on their legs, arms, and faces while they work.
(3)They carry heavy bags of small trees, and working in the mountains can be dangerous. adj.干燥的，雨少的，干性的
v. 使……干，弄干，擦干Reading task3.Why do they plant different kinds of trees ?
They plant different types of trees so that birds and animals can live in the forests.
4.What will happen if we do not plant new forests ?
If we don’t plant new trees, the forests will become smaller and smaller. Without trees, the wind and the water will take the earth away, and the oxygen in the air will become less and less.
5.Would you like to be a tree planter when you are older ? Why or why not ?
…Reading task
1. Do you recycle newspapers or cans?
A. Often. (2) B. Seldom.(1) C. Never.(0)
2. What do you usually take?
A. A bath.(0) B. A shower.(2)
3. When you have a short journey, how do you usually go there?
A. Walk or ride a bike.(3) B. Go by car.(0) C. Go by bus.(2)
4. What do you usually do when you see others littering?
A. Stop them.(2) B. Pick the litter up.(1) C. Do nothing.(0)
5. How often do you use paper towels?
A. Often. (0) B.Seldom.(1) C. Never.(2)
6. How often do you eat fast food?
A. Often.(0) B. Seldom.(1) C. Never.(2)
7. What type of bags do you use for shopping?
A. Baskets or cloth bags.(3) B. Reused plastic bags.(1)
C. New plastic bags.(0)
8. How often do you turn off the lights when you leave a room?
A. Nearly always.(2) B. Seldom. (1) C. Never.(0)
Finding a Greenest Person?Project
0-4 You have not started turning green yet.
5-9 You are pale green.
10-13 You are medium green. Try harder.
14-15 You are bright green, but do not stop trying.Scores__________(Your partner’s name),
Your scores are ____. You often _______ and you usually ________, (but you seldom / never ___________, ) so you have not started turning green yet./…Conj. 连词ProjectFinding a Greenest Person?How to become a greener person Would you like to be a greener person? Here is some advice for you. First, you should/had better/… ____________ . Second, ____________________. Third, ______________ . Finally, ______________ .
The earth is our home. Everyone should try his best to protect it.Free talk
Memorize the useful expressions and key sentences that we learnt today.
Finish Section D in the workbook.
Finish the composition and hand it in. Homework谢谢21世纪教育网（www.21cnjy.com) 中小学教育资源网站 有大把高质量资料？一线教师？一线教研员？
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