1、1. Were 1. Were trying to savetrying to save the earth! the earth! 我们正在竭尽全力拯救地球我们正在竭尽全力拯救地球! ! try to do =try ones best to do try to do =try ones best to do 努力去做某事。努力去做某事。 e.g. Every student should e.g. Every student should try to try to studystudy hard in order to study in hard in order to study in
2、 a university.a university. 为了进入大学学习，每个学生为了进入大学学习，每个学生都应该都应该 努力学习。努力学习。The earth is polluted.The earth is polluted.air air pollutionpollution空气污染空气污染The factories that The factories that burn burn coalcoal pollute pollutethe air with a lot of the air with a lot of black smoke. black smoke. n n. . 煤炭
3、煤炭Factories put Factories put wastewaste into the into the river.river.water pollutionwater pollution 水污染水污染n n. . 废弃废弃物物noise pollutionnoise pollution噪音污染噪音污染There are more There are more cars on the cars on the road.road.1a1aHere are some words Here are some words related to related to different k
4、inds of pollution. different kinds of pollution. Write them in the box below. Write them in the box below. Then add more words.Then add more words.2.2. Here Here areare some words some words related torelated to different kinds of pollution.different kinds of pollution. be related to be related to 与
5、与有关有关 e.g.e.g.I I amam not notrelatedrelatedtotohim in him in any way. any way. 我和他无任何关系。我和他无任何关系。 noise pollution noise pollution _air pollution air pollution _water water pollution pollution _loud loud musicmusicplanesplanesmobile phonesmobile phonesfactoriesfactoriescarscarssmokingsmokingshipsshi
6、psfactoriesfactorieslitteringlitteringrubbishrubbishbuilding housesbuilding housesbuilding housesbuilding housesloud music cars rubbish planeslittering ships factories smokingbuilding houses mobile phones1b1bListen and complete the sentences.Listen and complete the sentences.Whatwastheproblem?The ri
7、ver was _. Even the bottom (底部底部) of the river was full of _. There were no more _ for fishermen (渔民渔民) to catch.really dirtyreally dirtyrubbishrubbishfishfishWhatcausedtheproblem?People are throwing _ into the river. Factories are putting _ into the river.Howshouldtheproblembesolved?We should write
8、 to the _ and ask them to _ the factories. Everyone should help to _ the river.litterlitterwastewastegovernmentgovernmentclose downclose downclean upclean uplitterlitter v v. . 乱扔乱扔 【U】 n n. . 垃圾垃圾rubbish rubbish wastewaste垃圾垃圾 废废弃物弃物People should People should throw away throw away litter litter in
9、 the in the binbin. .n n. . 垃圾垃圾箱箱4. 4. Even the bottom of the river was full Even the bottom of the river was full of of rubbishrubbish. . Yes, but people are throwing Yes, but people are throwing litterlitter into the river.into the river.litterlitter和和rubbishrubbish都可指都可指“垃圾垃圾”，用作，用作不可数名不可数名词词rub
10、bishrubbish指指“没用的东西没用的东西( (被扔或将要丢弃的无用被扔或将要丢弃的无用的东西的东西)”)”不可回收不可回收. .litterlitter指指“( (室内或公共场所室内或公共场所) )乱扔的废物乱扔的废物( (纸屑、纸屑、不要的包装纸、废瓶等不要的包装纸、废瓶等)”)”还可回收。还可回收。e.g. Throw the e.g. Throw the rubbishrubbish out. out. 把垃圾扔出去。把垃圾扔出去。The room is full of The room is full of rubbishrubbish. . 房间里堆满了垃圾。房间里堆满了垃圾
11、。Pick up your Pick up your litterlitter after a after a picnic. picnic. 野餐后将废弃物收拾好。野餐后将废弃物收拾好。 1c1cThe river was dirty. The river was dirty. Even the bottom of Even the bottom of the river was the river was full full of of rubbishrubbish. .But But it used it used to to be so be so clean!clean!usedus
12、ed toto & & bebe usedused toto doingdoing &be&be usedused toto dodo的区别的区别 usedusedto do sth.to do sth.过去经常，以前常常(现在不做了) We used to go there every year. 我每年都去那儿。 He is not what he used to be. 他已不是旧日的他了。 bebeusedusedtotodoingdoing习惯于做某事 Hes quite used to hard work.(working hard) 他颇习惯于艰苦工作。 bebeusedused
13、totododosth.sth.被用来做 Wood is used to make paper.木材被用来造纸。Yes, but people Yes, but people are are throwingthrowing litter litter intointo the the river.river.Factories are Factories are also putting also putting waste into the waste into the river.river.What should we What should we do?do?Everyone in
14、this Everyone in this town should town should play a play a part in part in cleaning cleaning it up!it up!3. Everyone in this town should 3. Everyone in this town should play a play a partpart inin cleaning it up! cleaning it up!play a part in play a part in 在在方面起作用方面起作用 e.g. A good diet e.g. A good
15、 diet plays aplays a large large part inpart in helping people live longer.helping people live longer. 健康的饮食在帮助人们长寿方面起着非常大的作用。健康的饮食在帮助人们长寿方面起着非常大的作用。play a part play a part 在在中扮演角色中扮演角色 e.g. He was invited to e.g. He was invited to play a part inplay a part in this TV play. this TV play. 他被邀请参加这个电视剧
16、的演出。他被邀请参加这个电视剧的演出。We should write to We should write to the government and the government and ask ask them them toto close close down the factories.down the factories.What else What else can we do?can we do?Everyone should Everyone should help to help to clean clean up up the river.the river.2a2aLi
17、sten to the interview. Listen to the interview. CircleCircle the kinds of pollution that the kinds of pollution that Jason and Susan talk about.Jason and Susan talk about.A.A. land pollution B. air pollution land pollution B. air pollutionC. noise pollution D. water pollutionC. noise pollution D. wa
18、ter pollution2b2bListen again and complete Listen again and complete the sentences.the sentences.1. The air is badly polluted 1. The air is badly polluted because there are _ on because there are _ on the road these days.the road these days.2. Factories that burn coal also 2. Factories that burn coa
19、l also _ the air with a lot of _ the air with a lot of black smoke.black smoke.more carsmore carspollutepollute3. There is also too much rubbish 3. There is also too much rubbish and waste. People and waste. People _ things every _ things every day.day.4. People are also littering in 4. People are a
20、lso littering in _ like parks. This _ like parks. This is is turningturning beautiful places beautiful places into into ugly (ugly (丑陋丑陋) ) ones. ones. are throwing awayare throwing awaypublic placespublic places1.1.This is This is turningturning beautiful places beautiful places intointo ugly ugly
21、ones.ones. turn into turn into 把把变成变成e.g. The icy rain seemed like to e.g. The icy rain seemed like to turn intoturn into snow. 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。 1. Who is the interviewer talking to?1. Who is the interviewer talking to?2. What are they talking about?2. What are they talking about?3
22、. What other problems do they see?3. What other problems do they see?Susan and Jason.Susan and Jason.The environmental problems.The environmental problems.Theres too much rubbish and Theres too much rubbish and waste in the streets.waste in the streets.Role-play conversations between Role-play conve
23、rsations between Jason and Susan.Jason and Susan.2c2cThe air has become The air has become really polluted really polluted around here. Im around here. Im getting very getting very worried.worried.Yes, I used Yes, I used to be able to to be able to see stars in see stars in the sky.the sky.The probl
24、em The problem is that is that What should we do to What should we do to save the earth?save the earth?Turn offTurn off the lights when you leave a room. the lights when you leave a room.关掉关掉Take the bus or subway instead of drivingTake the bus or subway instead of drivingstop using paper towels or
25、stop using paper towels or napkinsnapkins（餐巾，餐巾纸）（餐巾，餐巾纸）recyclerecycle books and paperbooks and paper回收利用回收利用2d2dRead 2d and complete the chart.Read 2d and complete the chart.ProblemsSolving problemsair pollutionwaste pollutionwooden (木头木头的的) chopsticks or plastic forksrubbishtake the bus, subway o
26、r take the bus, subway or ride a bike instead of ride a bike instead of driving. driving. bring a bag to go shopping.bring a bag to go shopping.use chopsticks or use chopsticks or forks at home.forks at home.throw rubbish in the bins.throw rubbish in the bins.Jason and Susan, what are your Jason and
27、 Susan, what are your ideas for solving these problems?ideas for solving these problems?Yeah, or ride a bike. Yeah, or ride a bike. There are other There are other advantages (advantages (优点优点) of ) of bike riding.bike riding. Its good for Its good for health and it health and it doesnt doesnt costc
28、ost ( (花费花费) ) anything!anything!Well, to cut down Well, to cut down air pollution, we air pollution, we should take the should take the bus or subway bus or subway instead ofinstead of（代替）（代替） driving.driving.2. Its good for health and it 2. Its good for health and it doesnt doesnt costcost anythin
29、g! anything! cost cost v 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 cost的过去式和过去分词均为的过去式和过去分词均为costcost。 e.g. The new shirt e.g. The new shirt costcost Mr Wang 200 Mr Wang 200 yuan.yuan. 王先生花了王先生花了200200元买了新衬衫。元买了新衬衫。 How much does the new How much does the new computer computer costcost? ? 新电
30、脑花了多少钱？新电脑花了多少钱？take, spend, pay & take, spend, pay & costcosttaketake，spendspend，paypay和和costcost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)1) taketake多表示花费时间多表示花费时间； It takes sb. some time to do It takes sb. some time to do sthsth. . 其中其中itit作形式主语作形式主语。 e.g. e.g. ItIt usually usually takestakes me
31、40 me 40 minutes minutes to to cookcook the dinner. the dinner.2) 2) spendspend多表示花费时间和金钱，多表示花费时间和金钱， 主语通常是主语通常是人人； sb. sb. spend(s) spend(s) some time / money some time / money on on sthsth. . =sb. =sb. spend(s) spend(s) some time / money some time / money (in) (in) doing doing sthsth. . e.g. e.g.
32、David David spentspent 2,000 2,000 yuanyuan onon the new the new machinemachine. . My father My father spendsspends an hour an hour (in) (in) watchingwatching the news on TV every day. the news on TV every day.3) 3) paypay多表示花费金钱，主语通常是多表示花费金钱，主语通常是人人，sb. sb. pay(s) pay(s) some money some money for f
33、or sthsth. . e.g. Tommy e.g. Tommy payspays 20 20 yuanyuan forfor his breakfast. his breakfast.4) 4) costcost多表示花费金钱，主语通常是多表示花费金钱，主语通常是物物，sthsth. . cost(s) (sb.) cost(s) (sb.) some money.some money. e.g. The new dress e.g. The new dress costcost Linda 88 Linda 88 yuanyuan. .根据句意用根据句意用take, spend, pa
34、ytake, spend, pay或或costcost的适当形式的适当形式填空。填空。 1. That new car _ 1. That new car _them lots of money.them lots of money. 2. Mona _ 50 2. Mona _ 50 yuanyuan on the books just on the books just now.now. 3. It usually _ 3. It usually _ me an hour to do my me an hour to do my homework.homework. 4. You shou
35、ld _ 4. You should _ some time practising some time practising your pronunciation.your pronunciation. 5. My brother _ 5. My brother _6, 000 6, 000 yuanyuan for the new for the new computer puter yesterday.costcostspentspenttakestakesspendspendpaidpaidGreat ideas! What about waste pollution?Great ide
36、as! What about waste pollution?Me, too. Me, too. Also, I never take wooden Also, I never take wooden chopsticks or chopsticks or plasticplastic ( (塑塑料料) ) forks when I buy forks when I buy takeaway (takeaway (外卖食品外卖食品) ) food.food. I I use use the ones the ones at at home.home.Mmm, I think Mmm, I th
37、ink simple things simple things like bringing a like bringing a bag to go bag to go shopping can shopping can help. help. I started doing I started doing that a year ago.that a year ago.And remember to throw And remember to throw rubbish in the bins and rubbish in the bins and keep public places kee
38、p public places clean and beautiful for clean and beautiful for everyone.everyone.So together, our actions So together, our actions can can make a difference make a difference and and lead to a better future!lead to a better future!3. So together, our actions can 3. So together, our actions can make
39、 make a differencea difference and lead to a better and lead to a better future!future! make a difference (to) 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. e.g. Do you think his words would Do you think his words would makemake any any differencedifference toto the final decision? the final
40、decision? 你认为他的话会对最后的决定产生影响吗？你认为他的话会对最后的决定产生影响吗？ The new teacher always encourages little Tom. The new teacher always encourages little Tom. This has This has mademade a a big big differencedifference toto him. 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 _ (sav
41、e) the 1. Were trying _ (save) the earth.earth.2. There used to _ (be) clean and 2. There used to _ (be) clean and beautiful.beautiful.3. There are too many _ for 3. There are too many _ for _ to catch (fish). to catch (fish).4. Its bad for environment to use 4. Its bad for environment to use _ (woo
42、d) chopsticks. _ (wood) chopsticks.to saveto savebebefishfishwoodenwoodenfishermenfishermenWrite Write 5 5 measures to measures to protect the environment.protect the environment.The earth is badly polluted. Please The earth is badly polluted. Please make a poster and think of what we make a poster
43、and think of what we can do.can do.Translate these sentences into Translate these sentences into English.English.1. 1. 甚至是河底都满是垃圾。甚至是河底都满是垃圾。2. 2. 这个镇上的每个人都应该参与清扫。这个镇上的每个人都应该参与清扫。Even the bottom of the river was Even the bottom of the river was full of rubbish.full of rubbish.Everyone in this town s
44、hould Everyone in this town should play a part in cleaning it up. play a part in cleaning it up. 3. 3. 骑自行车有其它的优点。骑自行车有其它的优点。4. 4. 我买外卖食品从来不拿木筷子和塑料我买外卖食品从来不拿木筷子和塑料叉叉 子。子。There are other advantages of bike riding.There are other advantages of bike riding.I never take wooden chopsticks or plasticI nev
45、er take wooden chopsticks or plasticforks when I buy takeaway food. forks when I buy takeaway food. The earth is badly polluted.The earth is badly polluted.What should we do to save the What should we do to save the earth?earth?Lets Lets take actiontake action ( (采取行动采取行动) )Turn off the lights Turn
46、off the lights when you leave a room.when you leave a room.Recycle books and paper. Recycle books and paper. Take buses instead Take buses instead of driving cars.of driving cars.There are some animals are There are some animals are endangered. We should do something endangered. We should do somethi
47、ng to protect the animals and the to protect the animals and the environment! environment! The zoos provide homes for many The zoos provide homes for many endangered animalsendangered animals. . 1. Have you ever 1. Have you ever seen seen a a sharkshark（鲨（鲨鱼）鱼）? ?2. What do you 2. What do you know k
48、now about sharks? about sharks?1. A shark can 1. A shark can no longerno longer swim and swim and slowly slowly dies. dies. 鲨鱼不能再游泳然后慢慢死掉。鲨鱼不能再游泳然后慢慢死掉。no longerno longer意思是意思是“不再不再” ” e.g.e.g. Im Im no longerno longer a student. a student. 我不再是个学生了。我不再是个学生了。 有两个短语和有两个短语和no longerno longer同义，即同义，即no
49、tany longernotany longer和和notany morenotany more，但，但他们侧重的方面不同。他们侧重的方面不同。no longerno longer和和notany longernotany longer侧重时间。侧重时间。 e.g. He e.g. He no longerno longer lives here. lives here. = He doesnt live here any = He doesnt live here any longer. longer. 他不在这儿居住了。他不在这儿居住了。( (一个时间以前一个时间以前他住他住 在这儿，过了
50、这个时间，他就离开在这儿，过了这个时间，他就离开了。了。) ) no more no more和和notany morenotany more侧重程度和数量侧重程度和数量e.g. You can drink no more. e.g. You can drink no more. = You ca = You cantnt drink drink any more.any more. 你不能再喝了。你不能再喝了。( (喝酒的量到了一定喝酒的量到了一定程程 度，不能再继续下去了。度，不能再继续下去了。) ) 2. 2. This method is This method is not only
