Unit13 Section B-3 3a-selfcheck 课件2022-2023学年人教新目标英语九年级全册.pptx（纯ppt,可能不含音视频素材）

1、Unit 13 Were trying to save the earth!Section B(3a-Self check)By the end of the class,you will be able to1.Master the words and sentences of Unit 13.2.Talk about pollution and environmental protection.3.Write a passage about The world and the environment重点词组复习1.充满2.扔进3.在起作用4.扔掉5.减少6.起作用；有影响7.导致8.切除9

2、.不但而且10.对有害be full of throwinto play a part in throw away cut down make a difference lead to cut off not onlybut also be harmful to 11.在顶部或顶端 12.科学研究 13.参加 14.帮助解决难题 15.关掉 16.付费；付出代价 17.加起来 18.采取行动 19.好好利用 20.拆下，摧毁at the top of scientific study take part in help out turn off pay for add up take acti

3、on put sth.to good use pull.down 21.上下颠倒 22.恢复，使想起，归还 23.关灯 24.有一个创新的头脑 25.浪费时间做某事 26.赢得奖 27.创建 28.因而著名 29.从改造 30.和往常一样upside down bring back turn off the light have a creative mind waste time doing win a prize(for)set up be known/famous for build/make.out of as usual u What is the picture about?u W

4、hat do you think about it?u What caused the problems?Other ways to cut down on these kinds of pollution.Kinds of pollution Ways to cut downwater pollutionland pollution noise pollutionair pollutionstop factories from throwing waste into rivers.Try not to use plastic bags when shoppingCut down the nu

5、mber of cars.Reduce the number of factories that burn coal.1.Take the bus or subway instead of driving.2.Dont use paper napkins.3.Bring a bag to go shopping 4.Never take wooden chopsticks or plastic forks when buying takeaway food.5.Remember to throw rubbish in the bins.6.Turn off the lights when yo

6、u leave a room.7.Recycle books and paper.What should we do to protect our earth?3b Write a letter to the city mayor about the problems and your suggestions.In your letter，describe the environmental problems in your town/city.What are the problems?Where are they?What or who is causing these problems?

7、Then，give suggestions or possible ways to solve the problems.I think that.We should/could.I suggest.本次写作内容是一封书信，信中首本次写作内容是一封书信，信中首先要介绍你所在城市存在有哪些环境问先要介绍你所在城市存在有哪些环境问题，是谁造成的这些问题，然后提出解题，是谁造成的这些问题，然后提出解决这些环境问题的方法和措施，可以结决这些环境问题的方法和措施，可以结合合3a中列举的问题和前面学过的解决办中列举的问题和前面学过的解决办法来完成这封信。法来完成这封信。体裁体裁:说明文。说明文。人称人称:

8、第一人称。第一人称。时态时态:一般现在时。一般现在时。【写作模板】【写作模板】【思路点拨】【思路点拨】BeginningEnding BodySmall things can solve big problemsWritingProblemsSolutionsAsk people to peotect the earthWhat caused the environmental problems?Problems pollutionwaste of energy break the balance of ecosystemwaste waterwaste gas plastic bags fo

9、rget to turn off the lightor shower cut down too many treeskill the animals the environment around us is becoming worse and worse,we cant see,the air is soHow to save the earthshould/can had better.Its necessary/important to Save the energyCut down the pollution other ways ride bikes or walk instead

10、 ofturn off the light/showerkeep the balance of ecosystem,plant more trees,the little things in daily livesgovernment and public 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 o

11、ur 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

12、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 becom

13、e better and better.Dear friends,In order to make the environment more beautiful,we should do what we can to protect it.First,we should plant more trees and flowers to make our city more beautiful.Also,always remember not to throw rubbish or pour waste water everywhere.As we all know,water is becomi

14、ng less and less.So its quite necessary to save water.For example,turn the tap off after washing.Last but not least,wed better ride bikes or walk when we go out instead of driving cars.In my opinion,if everyone tries his best to protect the environment,our city will become nicer and cleaner.Thank yo

15、u!Wang LinDear sir or madam,The environmental pollution is worse and worse today.We cant afford to wait any longer to take action.Water is polluted in some cities and countryside,we have no clean water to drink.Many trees are being cut down,some animals are getting less and less.Some factories are p

16、roducing dirty air into the sky,the population is increasing faster and faster,resources are getting less and less,etc.Not only does it affect our lives and health,but it also has a great effect in the future.【参考范文【参考范文1】Peoples health has been greatly affected by air,noise and water pollution.In or

17、der to live a better life,_ Yours,Jim we need to protect our world.We shouldnt throw away rubbish everywhere.We need to recycle,reduce,reuse things.Dont waste things,which saves money and reduces pollution.We shouldnt use plastic bags.We must plant more trees and stop people cutting down them.We hop

18、e our world will be more and more beautiful.Dear Sir or Madam,I have lived in this town ever since I was born and I love this town very much.I think that there are beautiful areas in this town,but there are also areas that arent attractive,like the rubbish disposal areas at the bottom of our apartme

19、nt blocks.There is rubbish coming out of the bins,and flies,cockroaches and rats running all over the rubbish.It is unpleasant to look at,smelly,and it makes the environment very unhealthy.the ploblem is there because the rubbish【参考范文【参考范文3】collectors do not come often enough to collect the rubbish.

20、The people living here may also be throwing away too much rubbish.We could try to ask people to produce less rubbish.I suggest that rubbish collectors collect rubbish more often as well.I believe that a better environment can be created in this town and we could all work together to acheive it.Your

21、faithfully,Wang XiWritingCall on the public!Lets protect the water,the land,the air !Lets build up a clean and beautiful environment!Write a speech._Ladies and gentlemen,Summary Saving the earth begins with small things.We can do a lots of things to protect our earth.If everyone pays more attention

22、to it,our environment will be better!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-pollutionactionprotectioninspirationbuildingcreationfarmersingertravelerdriverrunnerwritern.adj.fame -wood -scienc

23、e-health-south -care -rain -cloud-luck -help -color-day -famouswoodenscientifichealthysoutherncarefulrainycloudyluckyhelpfulcolorfuldailyadj.n.sunny -noisy -harmful -beautiful -different -important-woolen -sunnoiseharmbeautydifferenceimportancewooladj.adv.slow -wide -sudden-real -quick -true -possib

24、le-happy-loud -quiet -heavy -easy -angry -good -slowlywidelysuddenlyreallyquicklytrulypossiblyhappilyloudlyquietlyheavilyeasilyangrilywell 1.Rethink,Reuse,Recycle!re-是最常用的前缀是最常用的前缀之一之一 它它可以加在名词或动词可以加在名词或动词前，前，构成新的名词或构成新的名词或动词动词 re-表示以下意义：表示以下意义：1)表示表示“回回”或或“向后向后”的意思。的意思。e.g.return（回来）（回来）recall（回忆，召

25、回）（回忆，召回）2)表示表示“再再”、“重新重新”、“重复重复”的意思。的意思。e.g.rethink（再思考）（再思考）reuse（再运用）（再运用）restart（重新开始）（重新开始）reread（重读；再读）（重读；再读）2.She is a most unusual woman.un-“不，非不，非”，加在形容词之前，表示否定。，加在形容词之前，表示否定。e.g.uncomfortable 不舒服的不舒服的 unhappy 不不愉快的愉快的 unlucky 不幸不幸的的 unfriendly 不不友好的友好的3.Nothing is a waste if you have a cr

26、eative mind.-ive 形容词形容词后缀后缀,一般表示一般表示“有有.的的”e.g.creative,active,expensive4.Amy recently won a prize from the Help Save Our Planet Society.-ly 副词副词后缀后缀 e.g.really usually,finally,happily,healthily5.Amy is an inspiration to us all.-tion 名词名词后缀，表示动作、后缀，表示动作、状态状态e.g.invitation,competition,population,pron

27、unciation6.The theme park to show people the importance of environmental protection.-al 形容词后缀形容词后缀，表示表示“与与有关的有关的”e.g.environmental,cultural,national2.Match each statement with the grammar structure.Statement Grammar The river used to be so clean.Present progressiveWe have seen many changes in the en

28、vironment.Modal verbsPeople should take public transportation more.Passive voiceThe river is polluted by factories.used to The air pollution is getting worse and worse.Present perfect 你能归纳出这几种时态或语态的结构吗？现在进行时现在进行时:used to句型：句型：被动语态被动语态:现在完成时：现在完成时：情态动词情态动词:be+v-ingused to+v原原be+v过去分词过去分词have/has+v过去分

29、词过去分词v情情+v原原Good environment Why?Bad environment Why?parkthe air is cleanstreets so many treesrestaurantsclean and tidyriver a lot of rubbishso many carsair too many factoriesstreets 3a 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?Free talk1.Memorize all the language points of Unit 13.2.Preview Unit 14-Section A(1a 2d).