人教版九年级英语下册第13单元课件.ppt（纯ppt,无音视频）

1、Unit13 Unit13 Were trying to save the earth!Section A 1a-2d（第1课时）1.We should put up notice to stop from _（乱扔）（乱扔）.2.The teacher asked us to find a way to pick up the coins at the _（底部）（底部）of the bottle.3.There are no more fish for _（渔夫）（渔夫）to catch in the river.4.We should take the paper bags to go

2、shopping instead of the _（塑料）（塑料）ones.5.Could you please tell us another _（优点）（优点）of riding bike to work?【检查预习检查预习】litterbottomfishermanplasticadvantagenoise pollutionair pollutionwater pollution1a.Write the words related to different kinds of pollution in the box below.(Pairwork or groupwork)loud m

3、usic cars rubbish planeslittering ships factories smokingbuilding houses mobile phones_loud musiccars rubbishplaneslitteringshipsfactoriessmokingbuilding housesmobile phones1b.Listen and complete the sentences What was the problem?The river was _.Even the bottom of the river was full of _.There were

4、 no more _ for fishermen to catch.What caused the problem?People are throwing _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 helpto _ the river.really dirtyrubbishfishlitterwastegovernme

5、ntclose downclean up 1.The air is badly polluted because there are _ on the road these days.1.The air 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.2.Factories that burn coal also _ the air with a lot of black smoke.3

6、.There is also too much rubbish and waste.People _ 3.There is also too much rubbish and waste.People _ things every day.things every day.4.People are also litter in _ like parks.This is turning beautiful places into ugly 4.People are also litter in _ like parks.This is turning beautiful places into

7、ugly places.places.2a Listen to the interview.the kinds of pollution that Jason and Susan talk about.A.waste pollution B.air pollution C.noise pollution D.water pollutionCircle2b.Listen again and complete the sentences.litteringmore carspolluteare throwing away 1.Read the conversation quickly,find o

8、ut the answer to the question.What kinds of pollution are mentioned in this conversation?2d.Air pollution and waste pollution.2.Read the conversation again and complete the blanks.Pollution Ways to solve the problem Air pollution Waste pollution Take the bus or subway instead of driving;ride a bike.

9、bring a bag to go shopping;only use wooden chopsticks or plastic forks at home;Throw rubbish in the bins 1.This is turning beautiful places into ugly ones.2.turn into 把把变成变成e.g.The icy rain seemed like to turn into snow.渐渐地冻雨又变成雪花的模样。渐渐地冻雨又变成雪花的模样。2.Its good for health and it doesnt cost anything!co

10、st v.花费；使付出花费；使付出 指花费金钱，主语通常是物。指花费金钱，主语通常是物。cost的过去式和过去分词的过去式和过去分词均为均为cost。e.g.The new shirt cost Mr Wang 200 yuan.王先生花了王先生花了200元买了新衬衫。元买了新衬衫。How much does the new computer cost?新电脑花了多少钱？新电脑花了多少钱？take,spend,pay&costtake，spend，pay和和cost都可以表示都可以表示“花花费费”，但它们的用法各有不同。，但它们的用法各有不同。1)take多表示花费时间多表示花费时间，常用于，

11、常用于It takes sb.some time to do sth.这一句型中，其中这一句型中，其中it作形式主语作形式主语。e.g.It usually takes me 40 minutes to cook the dinner.2)spend多表示花费时间和金钱，主语通常是人多表示花费时间和金钱，主语通常是人，常用，常用于于sb.spend(s)some time/money on sth.和和sb.spend(s)some time/money(in)doing sth.两种句型。两种句型。e.g.David spent 2,000 yuan on the new machine.M

12、y father spends an hour(in)watching the news on TV every day.3)pay多表示花费金钱，主语通常是人多表示花费金钱，主语通常是人，常用于，常用于sb.pay(s)some money for sth.句型。句型。e.g.Tommy paid 20 yuan for his breakfast yesterday.4)cost多表示花费金钱，主语通常是物多表示花费金钱，主语通常是物，常用于，常用于sth.cost(s)(sb.)some money.句型。句型。e.g.The new dress cost Linda 88 yuan.根

13、据句意用根据句意用take,spend,pay或或cost的适当的适当形式填空。形式填空。1.That new car _ them lots of money.2.Mona _ 50 yuan on the books just now.3.It usually _ me an hour to do my homework.cost?spent?takes4.You should _?some time practising your pronunciation.5.My brother _?6,000 yuan for the new computer yesterday.spendpai

14、d3.So together,our actions can make a difference and lead to a better future!make a difference(to)表示表示(对对)产生影响或作用产生影响或作用 e.g.Do you think his words would make any difference to the final decision?你认为他的话会对最后的决定产生影你认为他的话会对最后的决定产生影 响吗？响吗？The new teacher always encourages little Tom.This has made a big

15、difference to him.新来的老师总是鼓励小汤姆，这对他影响很大。新来的老师总是鼓励小汤姆，这对他影响很大。用动词的适当形式填空。用动词的适当形式填空。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 savebefishwoodenfishermen用方框中所给词的适当形式填空。用方框中所给词的

16、适当形式填空。1.Dont throw _(垃圾垃圾)everywhere.2.In winter,many people burn _(煤煤)to keep warm.3.The police found a body at the _(底部底部)of the lake.4.The _(花费花费)of living in big cities is very high.5.He keeps a rabbit in a big _(木制的木制的)box.cost wooden,coal,bottom,littercost woodencoalbottomlitter根据句意用根据句意用take

17、,spend,pay或或cost的适当的适当形式填空。形式填空。1.That new car _ them lots of money.2.Mona _ 50 yuan on the books just now.3.It usually _ me an hour to do my homework.cost spent takes4.You should _ some time practising your pronunciation.5.My brother _ 6,000 yuan for the new computer yesterday.spendpaid3.So togethe

18、r,our actions can make a difference and lead to a better future!make a difference(to)表示表示(对对)产生影响或作用产生影响或作用 e.g.Do you think his words would make any difference to the final decision?你认为他的话会对最后的决定产生影你认为他的话会对最后的决定产生影 响吗？响吗？The new teacher always encourages little Tom.This has made a big difference to

19、 him.新来的老师总是鼓励小汤姆，这对他影响很大。新来的老师总是鼓励小汤姆，这对他影响很大。Points on P971.try to do=try ones best to do 努力去做某事努力去做某事2.be related to 与与有关有关3.mobile phones 手机手机4.rubbish,litter,waste 垃圾垃圾,废物废物5.the bottom of the river 河底河底6.be full of 充满充满7.fisherman-fishermen 渔民渔民8.government 政府政府9.throw litter into the river 把垃

20、圾扔到河里把垃圾扔到河里10.ask sb.to do 要求某人干某事要求某人干某事11.close down the factories 关闭工厂关闭工厂12.clean up 打扫打扫13.used to be过去是过去是14.play a part in参与，在参与，在中扮演角色中扮演角色 Memory1.努力去做某事努力去做某事2.与与有关有关3.手机手机4.垃圾垃圾,废物废物5.河底河底6.充满充满7.渔民渔民8.政府政府9.把垃圾扔到河里把垃圾扔到河里10.要求某人干某事要求某人干某事11.关闭工厂关闭工厂12.打扫打扫13.过去是过去是14.在在中起作用，在中起作用，在中扮演角色

21、中扮演角色 Points on P9815.be badly polluted 受到严重污染受到严重污染16.public places 公共场所公共场所17.turninto 把把变成变成18.cut down 减少减少19.take the bus or subway instead of driving 乘坐公交或地铁代替开车乘坐公交或地铁代替开车20.ride a bike 骑自行车骑自行车21.advantages of bike riding 骑自行车的好处骑自行车的好处 Points on P5822.be good for our health 对我们的健康有好处对我们的健康有

22、好处23.cost，spend，take,pay 花费花费24.wood-wooden25.takeaway food 外卖食物外卖食物26.throw rubbish in the bins 把垃圾扔进垃圾箱把垃圾扔进垃圾箱27.keep public places clean and beautiful 保持公共场所干净漂亮保持公共场所干净漂亮28.make a difference(to)(对对)产生影响或作用产生影响或作用29.lead to 导致，通向导致，通向 1.被污染被污染2.烧煤烧煤3.太多太多4.扔掉扔掉5.把把.变成变成.6.附近附近7.能够能够8.解决问题解决问题9.减

23、少空气污染减少空气污染10.乘公共汽车或地铁乘公共汽车或地铁11.代替、而不是代替、而不是.1.be polluted2.burn coal3.too much4.throw away5.turn.into.6.around here7.be able to8.solve a/the problem9.cut down air pollution10.take the bus or subway11.instead of1.骑自行车骑自行车2.骑自行车有别的好处。骑自行车有别的好处。3.对对.有益有益4.垃圾污染垃圾污染5.去购物去购物6.开始做某事开始做某事7.记得要把垃圾扔进垃圾桶记得要把

24、垃圾扔进垃圾桶8.保持公共场所的整洁和美丽保持公共场所的整洁和美丽9.对对.有影响、有作用有影响、有作用10.通向美好未来通向美好未来1.ride the bike2.There are other advantages of bike riding.3.be good for4.waste pollution5.go shopping6.start doing7.remember to throw rubbish in the bins8.keep public places clean and beatiful9.make a difference to sb.10.lead to a b

25、etter future用动词的适当形式填空。用动词的适当形式填空。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 savebefishwoodenfishermen用方框中所给词的适当形式填空。用方框中所给词的适当形式填空。1.Dont throw _(垃圾垃圾)everywhere.2.In winte

26、r,many people burn _(煤煤)to keep warm.3.The police found a body at the _(底部底部)of the lake.4.The _(花费花费)of living in big cities is very high.5.He keeps a rabbit in a big _(木制的木制的)box.cost wooden,coal,bottom,littercost woodencoalbottomlitter 1.We are trying to save the earth.1.We are trying to save the

27、 earth.我们正在努力拯救地球。我们正在努力拯救地球。【解析】try doing sth 尝试做某事（不一定付出很大努力）try to do sth 尽力做某事（强调付出一定的努力设 法完成）想一想?尽某人最大的努力做某事 try_ 2.But it used to be so clean.2.But it used to be so clean.但它过去是如此干净。但它过去是如此干净。【解析】used to 的意思是 _,其中to是不定式符号，不是 介词，所以其后要接_。be used to 的意思是_，其中to是介词，其后要接 _ 【合作探究合作探究】ones best to do s

28、th.习惯干某事过去常常做某事动词原形doing2.He _ go out with his parents,but now he _ staying at home alone.A.used to;is used to B.is used to;used to C.use to;is used to D.is used to;is used to How much is the ticket to Central Park?How much is the ticket to Central Park?A one-way ticket _$40,and you can _ another$20

29、 for A one-way ticket _$40,and you can _ another$20 for a round-trip.a round-trip.A.costs,pay B.cost,spend C.pay,spend D.spends,pay A.costs,pay B.cost,spend C.pay,spend D.spends,pay【合作探究合作探究】3.Its good for health and it doesnt cost anything!它对身体有好处并且不会花费任何东西。它对身体有好处并且不会花费任何东西。cost vt.1.花费；价格为；【拓展】ta

30、ke/spend/cost/pay的用法都可以表示“花费”，但用法却不尽相同。spend的主语必须是_，常用于 _ cost的主语是物或某种活动，还可以表示“值”，用于 _ （注意：cost的过去式及过去分词都是cost,并且不能用于被动句。）take后面常跟双宾语，常见于_ pay的基本用法是：_人人Sb.spend time/money on sth.Sb.spend time/money doing sth.cost sb.money.It takes sb.sometime to do sth.pay money for sth.4.To cut down air pollution,

31、we should take the bus or subway instead of driving.为了减少空气污染，我们应当乘坐公汽或地铁而不是开车。为了减少空气污染，我们应当乘坐公汽或地铁而不是开车。本句中本句中To cut down air pollution是动词不定式作目的状语。是动词不定式作目的状语。cut down 意为意为_减少减少 We must do something useful to _ pollution.A.cut off B.cut up C.cut down D.cut in I.I.单项选择。单项选择。1.Eating too much sugar ca

32、n _ healthy problems.1.Eating too much sugar can _ healthy problems.A.get to B.lead to C.point to D.able to A.get to B.lead to C.point to D.able to2.-What are the _ of bike riding?-Its good for our health.2.-What are the _ of bike riding?-Its good for our health.A.advantages B.reasons C.results D.id

33、eas A.advantages B.reasons C.results D.ideasII.II.用所给词的适当形式填空。用所给词的适当形式填空。1.There are many kinds of_ 1.There are many kinds of_（pollutepollute）in our daily life.in our daily life.2.All of the students should take part in_(keep)our school clean and 2.All of the students should take part in_(keep)our

34、school clean and tidy.tidy.3.Can you tell us your ideas for _(improve)your spoken English.3.Can you tell us your ideas for _(improve)your spoken English.4.We should stop using the_(wood)chopsticks to protect the forest.4.We should stop using the_(wood)chopsticks to protect the forest.5.Their grandpa

35、rents were _ (fisherman)near the sea 5.Their grandparents were _ (fisherman)near the sea before they before they moved to the town.moved to the town.当堂检测当堂检测B.A.pollutionkeepingimprovingwoodenfishermanersIII.III.根据汉语意思完成下列句子。根据汉语意思完成下列句子。1.1.咱们玩纸牌吧，别看电视了。咱们玩纸牌吧，别看电视了。Lets play cards _ _ watching TV.

36、Lets play cards _ _ watching TV.2.2.我们的行动会起作用，并且通向更好的未来。我们的行动会起作用，并且通向更好的未来。Our actions can _ a difference and lead to a _ future.Our actions can _ a difference and lead to a _ future.3.3.这个木箱时装满了书。这个木箱时装满了书。The _box_ _ _books.The _box_ _ _books.is full ofinstead ofmakebetterwoodenHomework We have o

37、nly one earth,find out as many ways to solve pollution problems as possible._.Section APeriod Threetake part inaffordturn offreusablepay fortake actiontransportation参加参加v.买的起；承担的起（后果）买的起；承担的起（后果）关掉关掉adj.可重复使用的可重复使用的付费；付出代价付费；付出代价采取行动采取行动n.运输业；交通运输运输业；交通运输Words Review用括号内所给动词的适当形式填空。用括号内所给动词的适当形式填空。1

38、.Listen!The phone _(ring).Please go to answer it.2.Alan,its late.Why not go to bed?Jenny hasnt come back yet.I _(wait)for her.3.Whats your father doing now?He _(write)a letter in the study.is ringingam waitingis writing 肯定句肯定句:主语主语+am/is/are+-ing 否定句否定句:主语主语+am/is/are+not+-ing 疑问句疑问句:Am/Is/Are+主语主语+

39、-ing 现在进行时表示现在或现阶段正在进行或发生的动作。现在进行时表示现在或现阶段正在进行或发生的动作。1)表示说话时正在进行的，目前正在发生的动作。常带表示说话时正在进行的，目前正在发生的动作。常带有表示目前时刻的时间副词有表示目前时刻的时间副词,如：如：now,at the(very)moment,for the time being,at present,及及Look!Listen!.Look!The big bird is flying away.看，那只大鸟正在飞走。看，那只大鸟正在飞走。He is watching a movie now.他现在正在看电影。他现在正在看电影。2)

40、表示目前一段时间内正在进行，但表示目前一段时间内正在进行，但 说话时可能没有进行的动作。说话时可能没有进行的动作。Right now I am studying Chinese by distance learning.我现在正通过远程教育学习汉语。我现在正通过远程教育学习汉语。3)与与always,constantly,forever,all the time等副词连用，表示动作反复或习等副词连用，表示动作反复或习 惯。此时句子常含有说话者的强烈惯。此时句子常含有说话者的强烈 情感在内。表达较强的情感在内。表达较强的“责备责备”或或“表表 扬扬”之意。之意。You are always ch

41、anging your mind.你总是主意不定。你总是主意不定。(太烦人了。太烦人了。)He is always helping others.他总是帮助别人。他总是帮助别人。(他真是个好人。他真是个好人。)4)对于对于come,go,leave,arrive,start等等 表示位置移动的动词常可用进行时表示位置移动的动词常可用进行时 态表将来。态表将来。He is leaving on Wednesday.他将于周三离开。他将于周三离开。Mary isnt here at the moment.She is coming later.玛丽现在不在这儿，她一会儿来。玛丽现在不在这儿，她一会

42、儿来。I called you at 4:00 yesterday afternoon,but no one answered.Sorry,I _ with my friends at that time.(2011河南河南)A.swim B.swam C.will swim D.was swimming考点例析考点例析【考点点拨考点点拨】过去进行时表示过去某一时刻或某阶过去进行时表示过去某一时刻或某阶 段正在进行的动作，其谓语由段正在进行的动作，其谓语由“was/were+现在分词现在分词”构成。构成。常与过去进行时连用的时间状语有：常与过去进行时连用的时间状语有：then,at that

43、time,this time yesterday,at ten yesterday等。等。用括号内所给动词的适当形式填空。用括号内所给动词的适当形式填空。1.Id like to introduce my best friend to you,Peter.Thank you,Lucy.But we _ (meet)already.2.Look at these stamps.I _(keep)them for five years.Wow,they are wonderful.have methave kept肯定句：肯定句：主语主语+have/has+过去分词过去分词+其他其他否定句：否定句

44、：主语主语+havent/hasnt+过去分过去分 词词+其他其他一般一般 Have/Has+主语主语+过去分词过去分词+疑问句：疑问句：？肯定答语：肯定答语：Yes,主格代词主格代词+have/has.否定答语：否定答语：No,主格代词主格代词+havent/hasnt.1.表示动作到现在为止已经完成或刚刚完成。表示动作到现在为止已经完成或刚刚完成。2.动作发生在过去，强调对现在的结果、动作发生在过去，强调对现在的结果、影响等。影响等。3.表示动作发生在过去，并且一直持续到现表示动作发生在过去，并且一直持续到现在，甚至还可能继续下去，句中使用持续性在，甚至还可能继续下去，句中使用持续性动词，

45、且常有表示一段时间的时间状语。动词，且常有表示一段时间的时间状语。4.现在完成时可以用在条件或时间状语从句现在完成时可以用在条件或时间状语从句中，表示将来某个时刻之前已经完成的动作。中，表示将来某个时刻之前已经完成的动作。1)现在完成时现在完成时+since+点时间状语点时间状语(名词、短语、名词、短语、从句，其中从句用一般过去时从句，其中从句用一般过去时)2)现在完成时现在完成时+for+段时间状语段时间状语 3)It/This is the first/其他序数词其他序数词/last time+that 从句中，从句使用现在完成时。从句中，从句使用现在完成时。1)Mary has been

46、 ill since three days ago.2)Mary has been ill for three days.3)It is the first time that I have visited the city.This is the best film that Ive(ever)seen.时态时态一般现在时一般现在时一般过去时一般过去时现在进行时现在进行时过去进行时过去进行时一般将来时一般将来时现在完成时现在完成时用法用法表示经常性发生的动作、表示经常性发生的动作、习惯性动作或客观真理、习惯性动作或客观真理、科学事实等。科学事实等。表示过去某个时间发生表示过去某个时间发生的动

47、作或存在的状态。的动作或存在的状态。表示现在或现阶段表示现在或现阶段正在进行或发生的正在进行或发生的动作。动作。表示过去某时正在进行表示过去某时正在进行的动作或存在的状态。的动作或存在的状态。表示将来某个时间要表示将来某个时间要发生的动作或存在的发生的动作或存在的状态。状态。表示过去发生或者未表示过去发生或者未发生的事对现在造成发生的事对现在造成的影响或结果。的影响或结果。构成构成方式方式1.动词动词be(am/is/are)+表语表语2.动词原形动词原形+(主语是第三人称单主语是第三人称单数，动词也用第三人称数，动词也用第三人称单数单数)1.动词动词was/were+表语表语2.实义动词的过

48、实义动词的过去式去式+be(am/is/are)+动动词的现在分词词的现在分词was/were+动词的现动词的现在分词在分词1.will/shall+动词原动词原形形(shall 用于第一人称用于第一人称)2.be going to+动词动词原形原形主语主语+have/has+过过去分词去分词+句句型型变变化化疑疑问问式式1.Be+主语主语+?2.Do/Does+主语主语+动词原形动词原形+?1.Was/Were+主主语语+?2.Did+主语主语+动词原形动词原形+?Be+主语主语+动词的动词的现在分词现在分词+?Was/Were+主语主语+动动词的现在分词词的现在分词+？1.Will/Sha

49、ll+主语主语+动词原形动词原形+?2.Be+主语主语+going to+动词原形动词原形+?Have/Has+主语主语+过去分词过去分词+？否否定定式式1.主语主语+be+not+2.主语主语+dont/doesnt+动词原形动词原形+1.主语主语+was/were+not+2.主语主语+didnt+动词原形动词原形+主语主语+be+not+动词的现在分词动词的现在分词+主语主语+wasnt(was not)/werent(were not)+动动词的现在分词词的现在分词+1.主语主语+will/shall not+动词原形动词原形+2.主语主语+be+not+going to+动词原形动词

50、原形+主语主语+havent/hasnt+过去分词过去分词+用括号内所给动词的适当形式填空。用括号内所给动词的适当形式填空。1.The Secondary School Entrance Exams _(hold)in June.2.A strange noise _(hear)by his mother last night.3.A wide road _(build)between the two villages by those people next year.is heldwas heardwill be built被动语态表示主语是谓语动作的承受被动语态表示主语是谓语动作的承受者