Unit 13We’re trying to save the earth!第1课时(A 1a-2d)课件人教新目标版九年级英语全册.pptx

1、Unit 13 Were trying to save the earth!R九年级全一册九年级全一册Section A 1a-2dNew words乱扔；垃圾；废弃物乱扔；垃圾；废弃物v.&n.渔民；钓鱼的人渔民；钓鱼的人n.煤；煤块煤；煤块n.litter fishermancoal丑陋的；难看的丑陋的；难看的adj.ugly优点；有利条件优点；有利条件n.advantagewoodenplasticcost塑料的；塑料的；adj.塑料；塑胶塑料；塑胶 n.花费；价钱花费；价钱n.木制的；木头的木制的；木头的adj.takeawaybin/tekwe/bn/外卖食物外卖食物 n.垃圾箱垃圾

2、箱 n.litterLets readcoalfisherman uglyadvantagecostwoodenplastictakeawaybinDont _!litter_fisherman_ chairs and table_ bagwoodenplastic_uglyLead-inWatch a video and say what you find.The _ is polluted.earth_ pollution_ pollutionairwater_ pollutionnoiseDo you know any other kinds of pollution?Here are

3、some words related to different kinds of pollution.Write them in the box below.Then add more words.loud music cars rubbish planeslittering ships factories smokingbuilding houses mobile phones 1anoise pollution air pollution water pollutionloud musicplanesbuilding housesmobile phonesmachinescrowdsveh

4、iclescarsfactoriessmokingbuilding housesburning power plantsrubbishlitteringshipsfactoriessewageLanguage pointsnoise pollution 噪音污染噪音污染 pollution为不可数名词，意为为不可数名词，意为“污染；污染物污染；污染物”，其动词形式为其动词形式为pollute。例句：这条河中有大量的污染物。例句：这条河中有大量的污染物。Theres lots of pollution in the river.例句：如果你在晚上发出吵闹声的话，我的狗会叫。例句：如果你在晚上发出

5、吵闹声的话，我的狗会叫。If you make noises at night,my dog will bark.noise为名词，意为为名词，意为“噪音噪音”，形容词形式为，形容词形式为noisy【辨析辨析】noise,sound与与voicenoisesoundvoice意为意为“噪音，喧闹声噪音，喧闹声”，常指不悦耳、，常指不悦耳、不和谐的嘈杂声。不和谐的嘈杂声。泛指自然界的各种声音。泛指自然界的各种声音。一般指人的嗓音，如说话、唱歌、谈一般指人的嗓音，如说话、唱歌、谈笑声等。笑声等。Dont make _ in the class!Light travels much faster t

6、han _.The girl has a sweet _.用用 noise,sound 与与 voice 填空。填空。noisesoundvoiceListen and complete the sentences.What was the problem?The river was _.Even the bottom of the river was full of _.There were no more _ for fishermen to catch.really dirtyrubbishfish1bWhat caused the problem?People are throwing

7、 _ into the river.Factories are putting _ into the river.How should the problem be solved?We should write to the _ and ask them to _ the factories.Everyone should help to _ the river.litterwastegovernmentclose downclean up Tony:Hey,Mark,maybe we could go swimming in the river later this afternoon.Ma

8、rk:I dont think I want to go,Tony.Tony:Why not?Mark:I was there last weekend and the river was really dirty.Even the bottom of the river was full of rubbish,and there were no more fish for fishermen to catch.Tapescripts:下午晚些时候下午晚些时候河底河底 Tony:No way!It used to be so clean.In fact,it has always been t

9、he nicest river in this town.Mark:Not anymore.I think people are throwing litter into the river.Factories are also putting waste into the river.不可能不可能再也不是了再也不是了 Tony:Thats terrible!We should write to the government.They should close down the factories.Mark:Good idea!But I think everyone in this town

10、 should help to clean up the river,too.Everyone should play a part,not just the government.关闭关闭参与参与Role-play the conversation.Then make your own conversations about the kinds of pollution in 1a.The river was dirty.Even the bottom of the river was full of rubbish.1cBut it used to be so clean!Everyone

11、 in this town should play a part in cleaning it up!Yes,but people are throwing litter into the river.Role-playThe air was dirty.The smoke from factories was black.But it used tobe so clean!We should write to the government and ask them to close down the factories.Yes,but people are polluting the air

12、.Language points1.But it used to be so clean!used to为固定结构，意为为固定结构，意为“曾经；过去常常曾经；过去常常”，表示过去存在或经常发生但现在已经停止的行为表示过去存在或经常发生但现在已经停止的行为或习惯，后接或习惯，后接动词原形动词原形。例句：我们曾在伦敦居住过。例句：我们曾在伦敦居住过。We used to live in London.否定结构否定结构：主语主语+didnt+use to+动词原形动词原形.主语主语+usednt to+动词原形动词原形.一般疑问句一般疑问句：Did+主语主语+use to+动词原形动词原形+其他其他

13、?Used+主语主语+to+动词原形动词原形+其他其他?例句：她过去不常来。例句：她过去不常来。She didnt use to come.She usednt to come.【拓展拓展】be/get used to(doing)sth.表示表示“习惯于（做）某事习惯于（做）某事”。例句：我习惯早起。例句：我习惯早起。I am used to getting up early.Make up sentencesMikeMike used to play the piano.肯定句：肯定句：否定句：否定句：Mike didnt use/usednt to play the piano.Mary

14、Mary used to dance.肯定句：肯定句：否定句：否定句：Mary didnt use/usednt to dance.2.Everyone in this town should play a part in cleaning it up!play a part in 意为意为“参与某事；在参与某事；在方面方面起作用起作用”，后接名词、代词或动词，后接名词、代词或动词-ing形式。形式。例句：我想参加学校活动。例句：我想参加学校活动。I want to play a part in school activities.构成短语：构成短语：play an active part i

15、n(doing)sth.积极参与（做）某事积极参与（做）某事 play an important part in(doing)sth.在（做）某事中发挥重要作用在（做）某事中发挥重要作用Listen to the interview.Circle the kinds of pollution that Jason and Susan talk about.2aA.land pollution B.air pollutionC.noise pollution D.water pollution2bListen again and complete the sentences.1.The air

16、is badly polluted because there are _ _ on the road these days.2.Factories that burn coal also _ the air with a lot of black smoke.carspollutemore3.There is also too much rubbish and waste.People _ things every day.4.People are also littering in _ like parks.This is turning beautiful places into ugl

17、y ones.are throwing awaypublic placesTapescripts:Interviewer:Today were talking to Jason and Susan about environmental problems.Jason and Susan,can you tell us about some of the problems youve seen?Jason:I think one problem is that the air is badly polluted.I hardly ever see blue skies anymore.Susan

18、:Yes,and I used to see the stars clearly.Interviewer:What do you think has caused this problem?Susan:Well,there are more cars on the road these days.Jason:And factories that burn coal also pollute the air with a lot of black smoke.Interviewer:What other problems do you see?Susan:I guess theres too m

19、uch rubbish and waste in the streets.Jason:Yes!Every day people are throwing away things like wooden chopsticks,plastic bowls and plastic bags.Susan:Theyre also littering in public places,for example,during picnics in parks.This is turning beautiful places into ugly ones.Interviewer:Youre right.Thes

20、e are serious problems for our environment.Next,lets talk about the things we can do to help.Use the information in 2a and 2b to role-play conversations between Jason and Susan.The air has become really polluted around here.Im getting very worried.Yes,I used to be able to see stars in the sky.The pr

21、oblem is that 2cThere is too much rubbish and waste in our cityYes,people are littering in public places.This is turning beautiful places into ugly ones.2dRole-play the conversation.Interviewer:Jason and Susan,what are your ideas for solving these problems?Jason:Well,to cut down air pollution,we sho

22、uld take the bus or subway instead of driving.Susan:Yeah,or ride a bike.There are other advantages of bike riding.Its good for health and it doesnt cost anything!代替，而不是代替，而不是优势，优点优势，优点Interviewer:Great ideas!What about waste pollution?Susan:Mmm,I think simple things like bringing a bag to go shoppin

23、g can help.I started doing that a year ago.Jason:Me,too.Also,I never take wooden chopsticks or plastic forks when I buy takeaway food.I use the ones at home.bring的反义词是的反义词是take外卖食物外卖食物 Susan:And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone.Interviewer

24、:So together,our actions can make a difference and lead to a better future!起作用；有影响起作用；有影响导致导致Read and finish the task.Ways to cut down air pollutiontake the bustake the subwayride a bikeWays to cut down waste pollutionbring a bag to go shoppingnever use wooden chopsticks or plastic forksthrow rubbis

25、h in the binsLanguage points1.We should take the bus or subway instead of driving.instead of 意为意为“代替，而不是代替，而不是”，后面常跟，后面常跟名词、代词或动词名词、代词或动词-ing形式。形式。instead of doing sth.代替做某事代替做某事例句：她没有待在家里而是去上学了。例句：她没有待在家里而是去上学了。She went to school instead of staying at home.【辨析辨析】instead of 与与 insteadinstead ofinste

26、ad介词短语，其后可跟名介词短语，其后可跟名词、代词或词、代词或v-ing形式。形式。Now I can drive to work instead of walking.副词，常位于句末，位副词，常位于句末，位于句首时，其后有逗号。于句首时，其后有逗号。He didnt reply.Instead,he left the room.介词短语介词短语副词副词2.Mmm,I think simple things like bringing a bag to go shopping can help.bring此处作及物动词，意为此处作及物动词，意为“带来；取来带来；取来”，反义词为反义词为ta

27、ke，意为，意为“拿走拿走”。bring sth./sb.to+地点地点 把某物把某物/某人带到某地某人带到某地【辨析辨析】bring与与takebringtake带来；拿来带来；拿来带走；拿走带走；拿走从别处带到说话者所在地从别处带到说话者所在地从说话者所在地带到别处去从说话者所在地带到别处去 Dont forget to _ your homework here tomorrow.Well _ the students to the museum.takebring3.Our actions can make a difference and lead to a better future

28、!make a difference 起作用；有影响起作用；有影响make a difference to.对对产生影响产生影响注意：注意：difference前面可加修饰语，如前面可加修饰语，如big,great等，表示受影响的程度。等，表示受影响的程度。例句：锻炼对她产生了重大影响。例句：锻炼对她产生了重大影响。Exercise made a big difference to her.短语：短语：make no difference 没有影响；无关紧要没有影响；无关紧要 make all the difference 关系重大；大不相同关系重大；大不相同课堂小结课堂小结1.fisherm

29、an 复数fishermen2.advantage 反义词disadvantage3.wooden adj.wood n.4.harmful adj.harm n.5.scientific adj.scientist/science n.6.cause/solve the problem 引发引发/解决问题解决问题7.make a difference影响；有作用影响；有作用8.instead of代替；而不是代替；而不是9.take action采取行动采取行动10.take part in参加参加11.这个镇上的每一个人都应该参与清理它这个镇上的每一个人都应该参与清理它!Everyone

30、in this town should play a part in cleaning it up!12.为了减少空气污染为了减少空气污染,我们应该乘公共汽车或地铁我们应该乘公共汽车或地铁,而不要开车。而不要开车。To cut down air pollution,we should take the bus or subway instead of driving.13.它对健康有益并且不用花费任何东西！它对健康有益并且不用花费任何东西！Its good for health and it doesnt cost anything!Exercise一、用动词的适当形式填空。一、用动词的适当形

31、式填空。1.Were trying _(save)the earth.2.There used to _(be)clean and beautiful.3.There are too many _ for _ to catch(fish).4.Its bad for environment to use _(wood)chopsticks.to savebefishwoodenfishermen1.He _ go out with his parents,but now he _ staying at home alone.A.used to;is used to B.is used to;u

32、sed to C.used to;used to D.is used to;is used to2.The interesting book _ me 10 yuan.A.took B.paid C.spend D.cost二、单项选择。二、单项选择。3.We must do something useful to _ pollution.A.cut off B.cut up C.cut down D.cut in4.Smoking can _ lung cancer.Youd bettter give it up.A.work on B.lead to C.take away D.put outHomework1.Review key words,sentences and language points.2.Try to make a summary on this period to find out what you have learned and do some little things to protect our earth in daily life.3.Do the exercises.