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1、Unit 2 Saving the EarthTopic 3 What can we do at home to protect the environment? Section D GrammarCompound Sentence Recycling can protect the environment, _ it can save money, too. Some things we have done are good for the earth _ some are bad. We should do everything to protect it, _ well be punis
2、hed and lose our home. people produce power from coal, _ it is very dirty and causes acid rain . andwhile orbut( ) 1. Help others whenever you can _ youll make the world a nicer place to live in. A. or B. and C. but D. while( )2. Cross the road carefully, _ youll keep yourself safe . A. so B. or C.
3、but D. and ( ) 3. Hurry up, _ youll be late for the concert . A. or B. so C. but D. and ( ) 4. -Tell us something about Canada, OK? - Im 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 wouldnt like to
4、 live there. A. because B. so C. but D. and Choose the best answer.BDADCFunctions Would you like to be a _ person? First, you ought to _ the electricity when you leave a room. _ said than done. Action speak _ than words. The train can _ a top speed of 431 km per hour. greenershut off Easierlouderrea
5、ch1.What are the three Rs? 2.Which means “make something less or smaller? 3.What should we reduce? 4.Which means “use it again?5.What should we reuse?6.What should we do about recycling?Reduce, reuse and recycle. Reduce. We should reduce the things which people can use only once. Reuse. We should re
6、use plastic bags. We should collect waste paper or soft drink cans, and sort them so that they can be recycled. Can you answer them?Throw the rubbish here and there. Dont spit in a public place. Draw a beautiful picture on the public walls. Dont throw things away if they can be reused. Go to school
7、by bike instead of by bus. Collect the rubbish and try to sort it.Pour dirty water into rivers directly.Turn off the lights when you go out.Which one is right? How important is the forest? Forests are the lungs of the earth. Remove carbon dioxide from the airMake oxygenCut down Build housesPlant tre
8、esHow do you understand “Forests are the lungs of the earth?Forests can remove carbon dioxide from theair and make oxygen. Retell it What difficulties do tree planters facewhen 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 t
9、hat 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.枯燥的，雨少的，干性的v. 使干，弄干，擦干Why do they plant different kinds of trees ?They plant different types of trees so thatbirds and animals can live
10、in the forests. Paragraph 3Paragraph 3 What will happen if we do not plant new forests ? The forests will become less and less. We cannot breathe without them. Would you like to be a tree planter when you are older ? Why or why not ? Have a try 1. Answer the following questions to see how green you
11、are.Finding the Greenest Person=2=1=0 04 You have not started turning green yet! 59 You are pale green.1013 You are medium green. Try harder.1418 You are bright green, but do not stop trying.Score:=31、Do you usually recycle newspaper or cans? Often. Seldom. Never. 2. What do you usually take ? A bat
12、h. A shower. 3. When you have a short journey,how do you usually go there ? Walk or ride a bike. Go by car. Go by bus. 4. What do you usually do when you see others littering? Stop them. Pick the litter up. Do nothing. 5. How often do you use paper towels? Often. Seldom. Never.6. How often do you ea
13、t fast food? Often. Seldom. Never. 7. What type of bags do you use for shopping? Baskets or cloth bags. Reused plastic bags. New plastic bags. 8. How often do you turn off the lights when you leave a room? Nearly always. Seldom. Never. We learn: 1. Some words: dry 2. Some phrases: provide sth. to do
14、 sth.; face difficulties; even though 3. Some sentences: (1)Without them, it cannot breathe. (2)They plant different types of trees so that birds and animals can live in the forests. We can: 1. Use the compound sentence correctly. 2. Realize the importance of the forest.Summary Read 1a. Memorize the useful expressions and key sentences which we learn in this topic. Finish Section D in your workbook. Review what we learn in this unit.AssignmentAssignmentThank you!
