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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit 13 Were trying to save the earth.,Section B 3a-Self check,Revision,1.,停止乘小汽车,2.,回收纸,3.,用纸巾,4.,好好利用,5.,用垃圾建造房子,6.,倒置,7.,经营小生意,stop riding in cars,recycle paper,use paper napkins,put to good use,build a house out of rubbish,turn upside down,set up a small business,8.,回复，归还,9.,旧玻璃瓶,10.,拆下,11.,一个有创意的大脑,12.,开一个小店,13.,更受欢迎的作品,14.,给他人带来欢乐,bring back,old glass bottles,pull down,a creative mind,open a small shop,more popular works,bring happiness to others,Warming up,What should we do to save the earth?,Turn off the lights when we leave a room.,Take our own bags when shopping.,Ride a bike.,Recycle paper.,Dont use paper napkins.,What should governments do to save the earth?,They should close down the factories that put waste into the river.,Set up a lot of dustbins on the street.,Stop people from using wooden chopsticks, plastic bowls and bags.,Organize people to clean up the streets and rivers.,Think about the environment in your town/ city and complete the chart below.,Which parts of the town/ city have a nice environment? Why are they nice?,Which parts need to be improved? Why?,3a,Good environment,Why,Bad environment,Why,park,the air is clean,streets,so many trees,restaurants,clean and tidy,river,a lot of rubbish,so many cars,air,too many,factories,streets,3b,Writing,Write a letter to the city mayor about the problems and your suggestions.,In your letter, describe the environmental,problems in your town/city.,1. What are the problems?,2. Where are they?,3. What or who is causing these problems?,Then, give suggestions or possible ways to solve the problems.,I think that,We should/ could,I suggest,One possible version,Dear Sir/ Madam,Environmental problems are becoming more and more serious all over the world.,With the development of the society, there are too many cars on the streets in our city. Cars have made the air unhealthy,for people to breathe. Black smoke and poisonous gas are given off by factories. Factories also put waste into the river. And wherever we go, we can find rubbish.,Now more and more people have realized these problems. I think that governments,should close down the factories and develop laws to stop people from driving cars every day. I suggest everyone in this town should help to clean up the river and the streets. We should call on everyone in the town to throw rubbish in the dustbins.,I hope the problem will be solved in the near future and our home will become better and better.,Circle,可数名词，意为 “,圆圈,”，也可表示,具有共同兴趣爱好或职业等的 “阶层；圈子；,界”,.e.g.,The children stood in a circle around the fire.,He is well-known in theatrical circles.,Circle,还有动词的意思，表示“圈出”。,Please circle the correct answer.,Language Points,Not only but also,意为 “,不但,而且,”,遵循一下三个原则,(a),并列连词，连接两个并列成分，其中,also,可以省略。,(b),主谓一致原则：,not onlybut also.,连接两个,主语时，谓语动词在人称和数上要与,but also,的主语保持一致。,Language Points,(c),倒装原则：,not onlybut also,连接两个并列分句时，,not only,置于句首，表示强调，其引导的句子要用,部分倒装,，即将谓语动词的一部分,(,情态动词，助动词等,),放在句子的前面，而,but also,后的句子用正常语序。,Not only he but also,I am,interested in pop music.,Not only,do I,feel good about helping people, but also I get to spend time doing what I love to do.,need doing=need to be done,需要被,现在,分词,doing,表被动“需要被做”，相当于,need,to be done,。,My watch needs repairing. =My watch needs,to be repaired.,我的表需要修了。,need,后加不定式，证明,need,为实义动词，而,非情态动词，这时,need,有人称和数的变化,。,He needs to get up early.,他需要早起。,辨析：,need to be done; need doing,与,need to do,例句：,S,omething is wrong with my car.,I,t needs _.,A. repairB. to repair,C. repairing,D. to be repair,解析：need to be repair= need repairing,表示头发该收拾了。,cause,用作动词，当“,引起，造成，使得,”讲。一般指引起或造成不好的结果。,cause sb.,sth.=,cause sth.,to sb,.(,后接间接宾语,+,直接宾语,),为固定用法。,He caused his parents much trouble.=,He caused much trouble to his parents.,他给父母带来很多烦恼。,例,句,：,I,t caused him lots of worries.,I,t caused lots of worries _ him.,to,Self Check,1. Write different forms of the,words. Then add more to each,group.,v. n.,pollute -,act -,protect-,inspire -,build -,create -,farm -,sing -,travel-,drive -,run -,write -,pollution,action,protection,inspiration,building,creation,farmer,singer,traveler,driver,runner,writer,n. adj.,fame -,wood -,science-,health -,south -,care -,rain -,cloud-,luck -,help -,color -,day -,famous,wooden,scientific,healthy,southern,careful,rainy,cloudy,lucky,helpful,colorful,daily,adj. n.,sunny -,noisy -,harmful -,beautiful -,different -,important-,woolen -,sun,noise,harm,beauty,difference,importance,wool,adj. adv.,slow -,wide -,sudden -,real -,quick -,true -,possible-,happy -,loud -,quiet -,heavy -,easy -,angry -,good -,slowly,widely,suddenly,really,quickly,truly,possibly,happily,loudly,quietly,heavily,easily,angrily,well,2. Match each statement with the grammar,structure.,Statement,Grammar,The river used to be so clean.,Present progressive,We have seen many changes in the environment.,Modal verbs,People should take public transportation more.,Passive voice,The river is polluted by factories.,used to,The air pollution is getting worse and worse.,Present perfect,3.,Write ways to cut down on these kinds of pollution.,Kinds of pollution,Ways to cut down,water pollution,land pollution,noise pollution,air pollution,stop factories from throwing waste into rivers.,remind people not to litter,ensure that factories throw away industrial wast in a responsible way;try not to use plastic bags when shopping,Cut down the number of cars.,build airport away from places where people live,encourage people to use public transportation instead od driving; reduce the number of factories that bur,n coal,
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