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1、黄麓中心学校 2015 2016 九年级英语 丁名星 1 Unit 13 We re trying to save the earth!一、教学目标：1.语言知识目标 基本词汇：litter,advantage,bottom,fisherman,coal,ugly,cost,wooden,plastic,takeaway,bin,shark,fin,method,cruel.Harmful,chain,ecosystem,industry,law,scientific,afford,reusable,transportation,recycle,napkin,upside,gate,bottl
2、e,president,inspiration,iron,work,metal,creativity,基本词组：be harmful to,at the top(of sth.),take part in,turn off,take action,throw away,put sth.to good use,pull down,bring back 基本句型：We re trying to save the earth!The river used to be so clean.The air is badly polluted.No scientific studies have showe
3、d that shark fins are good for health.We should help save the sharks.2.技能目标:能正确运用现在进行时，现在完成时，被动语态，情态动词和 used to 句型。3.情感目标:有环境危机意识，学会关注环境保护环境。二、教学重难点：1.教学重点：（1）能正确运用现在进行时，现在完成时，被动语态，情态动词和 used to 句型。（2）保护环境的措施方法。2.教学难点：能正确运用现在进行时，现在完成时，被动语态，情态动词和 used to 句型。三、教学步骤:Section A 1(1a-2d)I.Presentation Sho
4、w the picture of the earth and tell students the earth is polluted now.For example:(1)The factories that burn coal pollute the air with a lot of black smoke.(2)Factories put waste into the river.黄麓中心学校 2015 2016 九年级英语 丁名星 2(3)People should throw away litter in the bin.(4)There are more cars on the r
5、oad.Learn some new words.II.Work on 1a Here are some words related to different kinds of pollution.Write them in the box below.Then add more words.loud music cars rubbish planes littering ships factories smoking building houses mobile phones noise pollution air pollution water pollution _ _ _ _ _ _
6、_ _ _ _ _ _ III.Listening 1.Work on1b.Listen and complete the sentences.What was the problem?The river was _.Even the bottom(底 部)of the river was full of _.There were no more _ for fishermen(渔民)to catch.What caused the problem?People are throwing _ into the river.Factories are putting _ into the riv
7、er.How should the problem be solved?We should write to the _ and ask them to _ the factories.Everyone should help to _ the river.2.Listen again and answer the following questions.黄麓中心学校 2015 2016 九年级英语 丁名星 3 1)What does Tony want to do later this afternoon?He wants to go swimming with Mark in the ri
8、ver later this afternoon.2)Why doesnt Mark want to go with Tony?Because 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.3)How was the river in the past?It used to be so clean.It has been the nicest river in this town.IV.P
9、ractice 1.Role-play the conversation in 1c.Mark:The river was dirty.Even the bottom of the river was full of rubbish.Tony:But it used to be so clean!Mark:Yes,but people are throwing litter into the river.Tony:Everyone in this town should play a part in cleaning it up!2.Make conversations using the p
10、ollution in 1a.A:The river has always been the nicest river in this town.B:Yes,it used to be so clean.A:But I was there last weekend and the river was really dirty.B:What caused the problem?A:People are throwing litter into the river.B:What should we do?A:Factories are also putting waste into the ri
11、ver.B:Yes,everyone in this town should play a part.A:We should write to the government and ask them to close down the factories.B:What else can we do?A:Everyone should help to clean up the river.V.Language points 1.Were trying to save the earth!我们正在竭尽全力拯救地球!try to do=try ones best to do 努力去做某事。e.g.W
12、ell try to finish the work in a week.黄麓中心学校 20152016 九年级英语 丁名星 4 我们将努力在一周内完成这项工作。2.Here are some words related to different kinds of pollution.be related to 与 有关 e.g.Is the driver relate to the accident?司机和这起事故有关吗？3.Even the bottom of the river was full of rubbish.Yes,but people are throwing litter
13、into the river.litter 和 rubbish 都可指“垃圾”，用作不可数名词。rubbish 指“没用的东西(被扔或将要丢弃的无用的东西)”不可回收。litter 指“(室内或公共场所)乱扔的废物(纸屑、不要的包装纸、废瓶等)”还可回收 e.g.Throw the rubbish out.把垃圾扔出去。The room is full of rubbish.房间里堆满了垃圾。Pick up your litter after a picnic.野餐后将废弃物收拾好。VI.Listening 1.Work on 2a.Listen to the interview.Circle
14、 the kinds of pollution that Jason and Susan talk about.A.land pollution B.air pollution C.noise pollution D.water pollution 2.Work on 2b.Listen again and complete the sentences.1)The air is badly polluted because there are _ on the road these days.2)Factories that burn coal also _ the air with a lo
15、t of black smoke.3)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 ugly(丑陋)ones.VII.Practice(Work on 2c)Use the information in 2a and 2b to role-play conversations between Jason and Susan.Jason:The a
16、ir has become really polluted around here.Im getting very worried.Susan:Yes,I used to be able to see stars in the sky.黄麓中心学校 2015 2016 九年级英语 丁名星 5 Jason:The problem is that VIII.Discussion Ask students what we should do to save the earth.Help students answer,turn off the lights when you leave a room
17、;stop riding in cars;stop using paper towels or napkins;recycle books and paper.IX.Reading 1.Read 2d and complete the chart.Problems Solving problems air pollution waste pollution wooden(木头的)chopsticks or plastic forks rubbish 2.Role-play the conversation.Interviewer:Jason and Susan,what are your id
18、eas for solving these problems?Jason:Well,to cut down air pollution,we should take the bus or subway instead of driving.Susan:Yeah,or ride a bike.There are other advantages(优点)of bike riding.Its good for health and it doesnt cost(花费)anything!Interviewer:Great ideas!What about waste pollution?Susan:M
19、mm,I think simple things like bringing a bag to go shopping can help.I started doing that a year ago.Jason:Me,too.Also,I never take wooden chopsticks or plastic(塑料)forks when I buy takeaway(外卖食品)food.I use the ones at home.Susan:And remember to throw rubbish in the bins and keep public places clean
20、and beautiful for everyone.Interviewer:So together,our actions can make a difference and lead to a better future!X.Language points 1.Its good for health and it doesnt cost anything!黄麓中心学校 20152016 九年级英语 丁名星 6 cost v.花费；使付出 指花费金钱，主语通常是物。cost 的过去式和过去分词均为 cost。e.g.The new shirt cost Mr Wang 200 yuan.王先
21、生花了 200 元买了新衬衫。How much does the new computer cost?新电脑花了多少钱？辨析 take,spend,pay&cost take，spend，pay 和 cost 都可以表示“花费”，但它们的用法各有不同。1)take 多表示花费时间，常用于 It takes sb.some time to do sth.这一句型中，其中 it 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，常用于 sb.spend(s)some time/
22、money on sth.和 sb.spend(s)some time/money(in)doing sth.两种句型。e.g.David spent 2,000 yuan on the new machine.My 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，常用于 sb.pay(s)some money for sth.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，常用于
23、 sth.cost(s)(sb.)some money.句型。e.g.The new dress cost Linda 80 yuan.根据句意用 take,spend,pay 或 cost 的适当形式填空。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.4)You should _ some time practising your pronunciation.5)My brother _ 6,000 y
24、uan for the new computer yesterday.2.So together,our actions can make a difference and lead to a better future!make a difference(to)表示(对)产生影响或作用 e.g.Learning English well can make a difference to your future.学好英语会对你的前途有影响。XI.Think about 黄麓中心学校 2015 2016 九年级英语 丁名星 7 The earth is badly polluted.Please
25、 make a poster and think of what we can do.Homework 1.Copy the new words and remember them.2.Read the listening materials of 1b,2a.Section A 2(3a-3c)I.Revision Translation.甚至是河底都满是垃圾。这个小镇上的每个人都应该参加打扫。骑自行车有其它的优点。我买外卖食品从来不拿木筷子和塑料叉子。II.Warming up 1.T:The earth is badly polluted.What should we do to sav
26、e the earth?Lets take action.For example:Turn off the lights when you leave a room;Take buses instead of driving cars Recycle books and paper.2.There are some animals are endangered.We should do something to protect the animals and the environment!III.Discussion 1.What do you know about shark(鲨鱼)?2.
27、Do you think sharks can be endangered?Why?3.What do you think might cause a fall in the number of sharks?IV.Reading 1.Complete the fact sheet in 3a.Where shark fin soup is popular 黄麓中心学校 2015 2016 九年级英语 丁名星 8 Number of sharks caught and traded every year How much the numbers of some kinds of sharks
28、have fallen in the last 20 to 30 years Two environmental groups which are against“finning”2.Retell the passage.sharks fin soup,in southern China each time cut off no longer not onlybut also at the top drop be endangered the strongest around 70 million fallen by over 90 percent WildAid and the WWF de
29、velop laws scientific studies V.Practice(Work on 3b)Read the passage and fill in the blanks with the words in the box.1)Many people do not realize they are killing a whole shark _ they enjoy a bowl of shark fin soup.2)Sharks are at the top of the food chain,_ if their numbers drop,the oceans ecosyst
30、em will be in danger.3)Many think that sharks are too strong to be endangered,_ they are wrong.4)_ there are no scientific studies to support this,a lot of people believe that shark fins are good for health.5)Sharks may disappear one day _ we do not do something to stop the sale of shark fins.VI.Lan
31、guage points 1.A shark can no longer swim and slowly dies.鲨鱼不能再游泳然后慢慢死掉。no longer 意思是“不再”,相当于 not any longer。e.g.Mr Brown no longer works here.布朗先生不再在这里工作了。黄麓中心学校 20152016 九年级英语 丁名星 9 2.This method is not only cruel,but also harmful to the environment.这种方法不但残忍而且对环境有害。not onlybut also 用于连接两个表示并列关系的成分
32、，着重强调后者，其意为“不仅 而且”;其中的 also 有时可以省略。e.g.1)She not only plays well,but also writes music.她不仅很会演奏，而且还会作曲。2)Not only men but also women were chosen.不仅仅是男的，女的也有被选中的。若连接两个成分作主语，其谓语通常与靠近的主语保持一致。e.g.Not only you but also he has to leave.不只是你，他也得离开。not only 放在句首，后接句子时要用倒装结构。e.g.Not only had the poor man been
33、 fined,but also he had been sent to prison.这个可怜的人不仅被罚款，而且还被送进了监狱。be harmful to 对 有害 e.g.Smoking is harmful to the health.吸烟有害健康。Playing computer games much is harmful to students.电脑游戏玩太多对学生有害。3.Sharks are at the top of the food chain in the oceans ecosystem.鲨鱼位于海洋生物系统食物链的顶部。at the top of 在.最高地位;用最高
34、最大 的(速度,声音等)e.g.He shouted at the top of his voice in order that he might be heard.他尽力大声叫喊,以便别人能听见。4.If their numbers drop too low,it will bring danger to all ocean life.如果它们的数目降至过低，会给所有海洋生物带来危险。此句复数形式的 number 表达全海洋中鲨鱼的总量。当表示数值的高或低时，number 要用 high 或 low 修饰。e.g.In that country,the number of children
35、going to school is higher in cities than in towns and village.黄麓中心学校 20152016 九年级英语 丁名星 10 在那个国家，城市儿童入学人数比乡镇及农村要高。常与 number 搭配的动词有 grow,fall 等。e.g.The number of families that own cars has been growing quickly recently.近来拥有轿车的家庭数量增长很快。Homework Write 5 measures to protect the environment.Section A 3(G
36、rammar Focus-4c)I.Revision 1.Check if you know these phrases.不同种类的污染 河底 把垃圾扔到河里 在 中起作用 在中国南部 对 有害 在 顶部 海洋生态系统 2.Translation.甚至河底都满是垃圾。这个方法不仅残酷还对环境有害。鲨鱼处于海洋食物链的顶部。许多人相信鱼翅对健康有好处。II.Grammar Focus Pay attention to the sentences.1)Were trying to save the earth.2)The river used to be so clean.3)The air is
37、 badly polluted.4)No scientific studies have shown that shark fins are good for health.5)We should help save the sharks.1.现在进行时:Present Progressive 定义：表示说话时（瞬间）正在进行的动作，也表示目前或现阶段一直进行的动作。黄麓中心学校 20152016 九年级英语 丁名星 11 结构:be(am/is/are)+v.-ing 标志词：Look,Listen,now,right now e.g.Look!The boy is crying.2.use
38、d to do 与 be used to doing used to do sth.表示过去常常做某事,而现在往往不做了,后接动词原形。be used to doing sth.表示习惯于做某事。e.g.I used to get up at six oclock.Joe is used to drinking a cup of coffee every morning.3.被动语态：Passive voice 定义：表示主语是动作的承受者，即行为动作的对象的一种语态。结构：be+过去分词 e.g.A new school was built last year.Our classroom i
39、s cleaned every day.4.现在完成时:Present Perfect 定义：表示动作已经完成,但对现在造成影响;或者表示从过去某一时间开始一直延续到现在并还可能持续下去的动作。结构:has/have+过去分词 标志词：already,yet,ever,never,since,for e.g.I havent finished my homework yet.5.情态动词 1)情态动词本身有一定的词义，表示说话人的情绪、态度或语气，但不能单独作谓语，只能与其他动词构成谓语。常见的有：can(could),may(might),must,need,shall(should),wi
40、ll(would)等。2)情态动词无人称和数的变化,后接动词原形。否定式是在情态动词后面加not。个别情态动词有过去式形式,可用来表达更加客气、委婉的语气。e.g.Ken can climb up the tress like a koala.Tracy could ride a bicycle when she was five years old.You mustnt play with fire.It is dangerous.III.Practice 1.Work on 4a.Fill in the blanks with the correct forms of the verbs
41、in brackets.黄麓中心学校 2015 2016 九年级英语 丁名星 12 Joe:_ you ever _(take)part in an environmental project?Eric:Yes,I have.I _(help)with a Clean-Up Day last year.It was _(consider)the biggest clean-up project this city _ ever _(have).Joe:How many people _(take)part?Eric:I _(think)more than 1,000 people _(come
42、)to help out.Joe:Thats fantastic!I guess everyon e in this city is _(try)to improve the environment.Eric:Yes,we cant afford to _(wait)any longer to take action!Learn some new words and expressions.2.Work on 4b.Fill in the blanks with the appropriate modal verbs from the box.The words are:can,would,c
43、ould,have to,should,must,may/might People _ think that big things _ be done to save the earth.Many forget that saving the earth begins with small things.For example,you _ save electricity by turning off the lights when you leave a room.You _ also use reusable bags instead of plastic bags.I think its
44、 a great idea that you now _ pay for plastic bags in some stores.And instead of driving to school or work,you _ ride your bike or walk.If its far,you _ take the bus.All these small things _ add up and become big things that _ improve the environment.Lets take action now!Learn some new words and expr
45、essions.3.Work on 4c.Make a list of things that people can do to help the environment and discuss your list with your partner.use public transportation(n.交通运输);turn off the lights when you leave a room;use reusable bags instead of plastic bags;ride your bike or walk to school or work;stop using pape
46、r napkins;黄麓中心学校 20152016 九年级英语 丁名星 13 recycle books and paper 4.Discussion.A:I think that everyone should use public transportation.B:I disagree.Its difficult for parents with young children to use public transportation IV.Language points 1.We cant afford to wait any long er to take action!afford v
47、.承担得起；提供,给予 afford to do sth.(常与 can,be ble to 连用)买得起；有足够的 e.g.We cant afford to pay such a price.我们付不起这个价钱。Dancing affords us pleasure.跳舞给我们带来快乐。2.save electricity by turning off the lights when you leave a room.turn off 关掉 e.g.Please turn the television off before you go to bed.睡觉前请关掉电视。拓展：turn 相关
48、短语 turn around 转身 turn up 调高（音量）turn down 调低；拒绝 turn into 变成；进入 turn on 打开，发动 turn off 关掉，关闭 turn out to be 结果是 turn over 移交 Homework Finish the exercises in the workbook.Section B 1(1a 2e)I.Warming up 黄麓中心学校 2015 2016 九年级英语 丁名星 14 1.T:How can we do to help save the earth?Turn off the lights when yo
49、u leave a room;Stop riding in cars;Stopping using paper towels or napkins;Recycle books and paper.Turn off the shower while you are washing your hair.You can help reduce pollution by putting that soda can in a different bin.Dont use paper napkins.2.Work on 1a.What can we do to help save the earth?Ra
50、nk these items from the easiest(1)to the most difficult(5)._stop riding in cars _recycle books and paper _turn off the lights when you leave a room _turn off the shower while you are washing your hair _don t use paper napkins 3.Work on 1b.Compare your answers in 1a with your partner.II.Listening 1c&