七年级英语Wex27retryingtosavethemanateesPPT优秀课件

1、Unit 15We're trying to save the manatees!Warming upAnimals are man9s friends.Whafs this? And how to describe it?enormous, graynoisy，cleverplayfulgentle, shyplayfulaggressive, funny1b Listeninggentle furry enormousplayful noisy shyaggressive gray fast spottedTapescriptIIVictor: Hey, Ginny. Whafs

2、that big, furry animal on the pond?Ginny: It，s a polar bear, Victor. Theyte kind of aggressive.Victor: Are they? Looks like they really love water.Ginny: Uh-huh>Victor: And what do you call those big, a gray things in the water?Ginny: They9re called manatees.Victor: What?Ginny: Manatees. Theye ve

3、ry gentle and very shy.Victor: Oh. And how about the yellow and black spotted animals in that cage?Ginny: They9re cheetahs. The cheetah is the fastest animal on earth.I am like this animal because I am strong andwater and I like to eatNo.Youre like an elephant.Yes.Yoifre like a Manatee.1 endangered2

4、. mangroves swamps3. habitat4. aquatic f2a Listening the place where something livesb. there arerf t very many of themc. underwater plants and vegetationd. a place where trees grow in waterTapescriptBoy: Can you tell us about the manatees, please?Man: Sure WeJre trying to save themBoy: Why? Are they

5、 endangered?Man: Yes There used to be a lot of manatees, but now there arenJt very many there are?Boy: Do you know how many there are?Man: At this point, there are only about 2,500 in the U.S In 1972, it was discovered that they were endangered Since then, the government has passed laws to protect t

6、hem Boy: Where do they live?Man: Their favorite habitat is the water under the trees in mangrove swampsBoy: And why are they endangered?Man: Some of the swamps have become polluted Also, there sometimes isn't enough food for all of them As you can see, they're large The average manatee is ab

7、out ten feet long and. The average manatee is about ten feet long and weighs about 1,000 pounds. They need about 100 pounds of aquatic feed a day.Boy: Aquatic feed?Man: Oh, thafs underwater plants and vegetation That's what they eat.Explanation1.1 am like this animal because I am strong and inte

8、lligent.be like=look like=be similar to像，看起来像。如：He is like his father.他像他的父亲。=He looks like his father.=He is similar to his father.这里的like作介词，意思为“像”， like还可做动词用，表示“喜欢”， like (doing) sth.喜欢做某事。如:He likes his father very much 他很喜欢他的父亲。Mary likes playing volleyball 玛丽喜欢打排球。2.How big are manatees?海牛有多大

9、？ how big.询问体重。以how组合的疑问 词组有很多，如：how old询问年龄how often询问频率how long询问动作持续的长短how much询问质量或者价钱how far询问距离how many询问数量how soon询问过多久3.they weigh about 1,000 pounds, 他们大约重1000磅。weigh 称重量，测重量。如:He weighed the stone in his hand.他用手掂了掂这块石头的重量。The piece of meat weighs four pounds*这块肉重四磅。weight还可用做名词,重量。如:What

10、is your weight ? 你的体重是多少？4. We9re trying to save the manatees. 我们正在竭尽全力拯救海牛。Try to do =try one5s best to do努力去做某事。如：Every student should try to studyhard in order to study in a university.为了进入大学学习，每个学生都应该 努力学习。Grammar时态谓语动词的形式(do)一般现在时一般过去时do / does现在进行时现在完成时aia般过去时被动语态be (am / is / are) doing现在完成时被

11、动语态have / hns donewas / were donehave / has been done现在完成时have /has +动词的过去分词定义：现在完成时表示到目前为止 已经完成，并对现在留下某种后果和 影响的动作。1. 表示过去发生的某一动作对现在造成的影响或结果,常与一些时间状语。如：already, yet, ever, never, just, before, once, twice等连用，也可以和包括现在在内的时间状语，如 these days, today, this year, so far 等连用。2. 表示过去发生的动作或存在的状态， 一直持续到现在,也许还将继

12、续下去， 可以和表示从过去某一时刻延续到现 在的一段时间的状语连用。即for +时间段，since+时间点/从句， in the last ten years等，谓语只可用延续性动词。2. has / have been to去过某地表示某人的一种经历，可与once, twice, already, ever, never等连用。have/has gone to去某地了，说话时某人已离开此地,在去某地的途 中或已在某地。have / has been in逗留在某地（已经一段时间）。常和for ten days,since I came here等连用。1. Where is Jim? He

13、has gene tc Wuhan.2. My parents hae been to the Great Wall twice. They like there very much.3. H刃ve you ever hern 怕 to the Happy valley?4. How long has Peter heeri in the West Hill farm?5. My sister Ms gone to the shop. She will be back in two hours.6. She h恥 gone tn Shanghai. She isift here.7. She

14、hs been to Shanghai. She is here.8. She Ms heen in Shanghai for two years.3. alreadyyet已经用于肯定句用于否定句,疑问句1. She has not seen this Him yet She has already seen this film.2.1 have already combed my hair.Have you combed your hair yet 3 He has already watched a video.He has not watched a video yet4. 现在完成时

15、中延续性动词和终止性 动词英语动词根据词义可分为两种，一种是 延续性的，一种是终止性的，终止性动词 他可称为非延续性动词,瞬间动词咸点 动词），如:become，begin, buy, borrow, arrive, die, finish, get to know, go, join, marry, start, stop等。表示动作的发生 与结束于一瞬间完成，不能再延续，所以它的现在完成时不能和表示延续的时间状语连用,即不能与表示一段时间的状语，for+时间段，since+时间点/从句连用迪不能用在how long引导的特殊疑问句。初中英语课本中常见终止性动词有:leave, go, co

16、me, arrive, begin, buy, borrow, die, join, become 等。终止性动词要表示持续时，可用以下 方法:(1)将时间状语改为时间段+ ago,句中谓语动词用一般过去时。eg.我弟弟参军两年了。My brother joined the army two years ago.若保留for +时间段，since+时间点/ 从句，或用在how long句型中，则需将 终止性动词改为相应的状态动词或延 续性动词。常见终止性动词与延续性动词（或 状态动词）的对应关系如下：come /go / arrive / get / reach / move be in/at

17、open be open close be closed borrow keep buy havedie be dead become be put on wearleavebe away (from)begin / start be onfall asleep be asleepend/finish-be overcatch a cold have a coldjoin the army-be in the army be a soldier join the Party-be in the Party be a Party member吉姆买了这只钢笔两年了。Jim has had thi

18、s pen for two years.Jim has had this pen since two years ago-Jim has had this pen since 2003.It is two years since Jim bought this pen.It has been two years since Jim bought this penJim bought this pen two years ago.2. 李雷自从2003年就参军。3. 那部电影开始30分钟了。4. 自从两年前这家商店就开了。5. 那个老人己经死了五年了。6. 莉莉六年前就离开家了。现在完成时和一般

19、过去时的区别：现在完成时所表明的是过去发生的动作对现在 的影响，强调的是现在的情况，不可以和表示过去 的时间状语 yesterday, in 1991, three days ago last time, last night等连用。一般过去时表明的是过去发生的事实，和现在不 发生关系。5.现在完成时中的for与since for +时间段与延 续性动词的现在完成时连用since +时间点/从句。I have kept the library book for a week. = Ihave kept the library book since a week ago.It is /has b

20、een + 一段时间 + since. 自从某事发生已有一段时间了。eg. It is /has been two years since my brother joined the army.注意：1. since引导的从句中动词用过去时。2. when引导的特殊问句不与现在完成时连用。3. have got,has got虽然是现在完成时，但have got =have has got = hasmet1 ltvs a long time since we (meet) last time, isn't it?2. “I know you(choose) a picturebook

21、 among these, have chosen-Yes,Have a look at it, please3 So far, spaceships without people(reach) the moon and some other parts of the universe have reached4 My fatherhome for nearly threeweeksA. has gone away fromB. has leftC has been away fromaway5. Mr and Mrs Green havein China for aweek.A.beenrr

22、ivedB. gotD. reached近义句转换:1. Jack joined the League five months 啤OJack has been a League member five months ago>2. It，s a long time since we met lastWe h力veift seen each otherfor a long time since we met last time.Fill in the blanks with the right forms of the given words.1. Every day my mother g

23、ets (get) up early.2. The dinosaur eggs were Hismvererl (discover) many years ago by scientists.3. Listen! Some children are singing (sing) an English song over there.4. In our hometown there used to (be) many old trees.5 My work hasift been finished (not finish) yet> I can9t go out to play with

24、you.Unit 15We're trying to save the manatees!Section A Period 2Debate: Do you think zoos are good for animals?Useful expressions1 think that1 agree with you.1 believe that1 disagree with you.1 feel that.1 agree that.3a Why the writer is opposed to zoos?1 Zoos are terrible places for animals to l

25、ive.2 The animals are kept in tiny cages and hardly move at alL3 They are only given food once a day.3b Whaf s 66Animal Friend opinion about the zoo?He thinks that the zoo is an important place for the animals* And it is like a living textbook for young people.Language points1. rm writing to say tha

26、t I am against building a new zoo in our town, against介词，反对，违反， 与相反(=opposite)如：Are most people against the proposal?大多数人反对这项提议吗？against介词还有触，碰，倚，靠的意思。 如：Put the piano there, with its back,against the walk把钢琴放在那里，背靠着墙。I3JBe against doing sth.反对做某事，反义词组是be for doing sth, 成某事如：All the people around th

27、e world are against cloning human beings. 全世界的人民反对克隆人类。All of us are for peace and against war.我们都赞成和平，反对战争。2.19ve visited a lot of zoos in my life, and I have never seen one I liked or one that was suitable for animals to live m.(1) be suitable for sb to do sth.表示“适合某人做某事”，这里suitable是 suit的形容词形式，表示

28、“合适的”。 A如：This kind of bamboo is not suitable for pandas to eat这种竹子不适合给熊猫吃。This dress suits you very much, but unfortunately it doesift fit you. 这套女装款式非常适合你，只可惜大 小不合适。(2)to live in在此处作animals的后置定语。英语中动词不定式短语做名词定语，放在后面。如:There is nothing for us to worry about.我们没有什么可以担心的。3. The animals are kept in ti

29、ny cages. 动物被关在极小的笼子里。 tiny=little很小的，带有感情色彩. 区别，the tiny country国家小（含可 爱的意思）a small country 小国家（与largecountry相对应）a little boy爱怜之意，（不含身材矮小） tiny和little常做定语，一般不做表语，small 既可以做定语,也可以做表语Olittle还可表示“一点点的”，修饰不 可数名词。如：There is a little milk in the bottle.瓶里有一点点的牛奶。4.1 was surprised to find hardly anyone th

30、ere.我非常惊讶地发现在那几乎没有人。 surprised在这里是过去分词做形容词。 常用词组:be surprised at sth.对某事感到惊讶be surprised to do sth.很惊讶地做某事in surprise 惊奇地To one5s surprise使某人惊奇地如:I was surprised at the news to hearthe news.听到这个消息我很吃惊。surprise =amaze 使惊讶surprising惊讶的（侧重指事物本身具有 的特点）如：His words surprised me.他的话使我大吃一惊。It is surprising

31、news.它是一个令人惊讶的消息。5They provide homes for manyendangered animals, and help to educate the public about caring for them.（动物园）他们为许多濒危的动物提供了 家，也有助于教育众人来关心这些动物Oprovide sb. with vide sth for sb.提供给某人某物The firm provided me with a car. 公司给我一辆汽车。Can you provided accommodation for thirty people?你能为30人提

32、供住宿吗？ provide for sb.供应某人所需。如：They worked hard to provide for their large family.他们努力工作以供养一家人。I disagree with you. I feel that zoos provide clean and safe places for endangered animalsI think that animals should not live in zoos.to live.He has a large family to provide for.他要养活一个大家庭。The public指"

33、;民众，公众”。在英 语中，定冠词the后接形容词表示一类 人。如：the young 年轻人the wounded受伤的人care for XT"照顾，照料看护”的 意思。如：Would you like care for a cup of tea? 你要不要来杯茶？10.1 urge all of your readers to visit our wonderful zoo soon.我们竭力主张你们所有的读者赶 快来参观我们的很棒的动物园。urge力劝，鼓励,怂恿，极力主张， 强调。如：They urged us to go with them. 他们怂恿我们一起去。She

34、urged the important of speed. 她强调速度的重要性。urge强烈的欲望，冲动，urgent紧急 的如：He has an urge to traveL 他有去旅行的强烈欲望。词组：urge sth，on/upon sb极力推荐 urge sb. on sth.鼓励某人做某事 urge against极力反对Exercises根据汉语完成下列句子我反对在我们镇上建新的动物园.I am. againsthuilding a new zoo in our to 舷现那里几乎没有人，我感到非常惊讶.I was very surprised to 行nd hardly any

35、one there.他们为许多濒危动物提供家们.They provide home for many endangered animals and help tothem.I urge everyone to visit our wonderful zoo>ikyonJ丿Which is the most difficult?Unit 15We，re trying to save the manatees!Section B Period 1stop ridding in carsrecycle books and papers走出教室门想着关灯四turn off the lights

36、when you leave a roomturn off the showers while you are washing your hairdoif t use paper towels or napkins2a 2b ListeningThings Julia and Jack talk aboutThings Julia is doing now3urn off the lightV/turning off the shower_stopping using paper napkins_talking your own bags 外hen shopping_not ridding i

37、n carsVridding a bikeRecycling paperThings Julia and Jack talk aboutThings Julia will do in the futureturn off the lightturning off the showerstopping using paper napkinstalking your own bags when shoppingnot ridding in carsVridding a bikerecycling paperThings Julia and Jack talk aboutThings Julia w

38、ould never doturn off the lightturning off the shower/stopping using paper napkinsVtalking your own bags when shoppingnot ridding in carsridding a bikeVrecycling paperVTapescriptIIJacJ : Hey, Julia. Don% forget to turn off the lights. It saves electricity.Julia: Oh, I know. I usually do that* I was

39、just in a hurry. How come you5re so interested in the environment, Jack?Jacl: I always have been. Lots of people think there nothing they can do，but I just read this book about it, and therere lots of things the average person can do.Julia: Like what?JacJ : Well, you should turn of the shower when y

40、oifre washing your hainJulia: Oh，Fd never do that!Jack: You wouldnt?Julia: No, I have very short hair. Fm only in the shower for a few minutes.Jack: Well, every minute helps.Julia: What else does it say?Jacl: It says you should take your own bags when you go food shopping.Julia: Oh, that9s not diffi

41、cult. I can do that. What else?Jacl : Hmmm. Here，s a good one.It says people should stop riding in cars and start riding bikes.Julia: Oh，Fll never do that! Can you see me riding 45 minutes to and from school everyday?Jact: Well, I think the environment is really important. Besides, I like riding my

42、bike.Julia: Yes, and you also live close to schooLusing them 1叭艸h</WIFikyonJ丿Unit 15We're trying to save the manatees!Section B Period 23a Reading构成stuff n.废物；无用的东西 material n材料；原料 pull v.拉；拖；拔 pull down摧毁；推翻 be made from由制成；由bottle n 瓶子glue v.胶合；粘贴；黏合仏胶水 roof n.顶；屋顶；房顶 discard v.丢弃；放弃tile n.

43、瓦片;瓷砖fence n.栅栏;围墙cairn.（装液体等，常带有盖的）金属罐 inspiration n.灵感；鼓舞人心的人（或事物） spare adj多余的；空闲的Questions:Who is Amy Winterbourne?Who taught her how to make her house?What isift made out of trash in her house?When did she start making her trash house?Where is the house?Why did she use trash to build a house? H

44、ow long did it take to build her house?Explanation1 You have probably never heard of Amy Winterbourne 你可能从没听说过艾米温特波尼。hear听见（过去式heard,过去分词 heard）hear sb do / doing sth听见某人做/正在做某事。女口： I listened carefully but heard nothing 我仔细听但是什么也没听到。I often hear him sing in the next room.我常听他在隔壁唱歌。,强调从别人不同意”，“不词组:h

45、ear of /about “听说,听到” 那里间接得到的信息其否定形式表示“ 予考虑” o如:I don't know the writer, but I have heard of him.我不认识这位作家，但是听说过他。I won't hear of such a thing.我不赞同此事。(2) hear from “收到的来信，同意”，与词组get a letterfrom sb或 receive a letter from sb同义。如：I haverft heard from him for a longtime.我好长时间没收到他的来信了 o2 Amy rece

46、ntly won.艾米最近赢得了win赢（过去式won,过去分词won,现在分词winning）如：win a race /a battle /a prize赢得赛跑/战役/战争/奖品win against /over sb 战胜某人beat也表示“赢，打败（常接对象厂如：Beat Class 3 /Mary /No 1 Middle SchooHs football team赢/打败3班/玛丽/第一中学足球队。lose失败,lose to sb,败给某人winner胜利者3 . and sells them to raise money for the Children's Hosp

47、ital并卖掉它们来为儿童医院集资。raise集结，召集,筹措,意为get or bring together. 如：Raise an army召集一支军队Raise funds for a holiday筹集度假费用(2)举起，抬起，意为lift upmove from a lower to a higher level, raise one5s hope燃起某人的希望 raise oneJs glass to sb.向某人敬酒 raise one's hand to sb.向某人伸拳 raise oneJs voice 提高声音(3)提出,意为:bring up for discu

48、ssion or attention. 如：raise a new point提出一新论点raise a new question提出一新问题(4)抚养，饲养，意为：breed, grow. 如：raise pigs 养猪I was born in Wuhan and raised in Wuhan. 我生在武汉，长在武汉。ikyonJ丿Unit 15We're trying to save the manatees!Self checkFill in the blanks.1. Why are you wearing a coat? Ifs not very suitable for

49、 this hot weather.2. Our school soccer them needs more support They aren9t doing very well.3 Pandas are enHangereH animals. There aren5t many of them left4. It，s important to recycle paper to save the trees.5. That apartment block is old and dangerous. It should bepulled down Practice1. People grow

50、rice in the South of China.（改为被动语态）Rice is grown in the South of China.2. My brother joined the army in 2002.（改为同义句）My brother Ms been in the army since 2002.3. The children ate up all the apples.（改 为被动语态）All the apples were eaten up by the childre n4. The young man goes to the cinema once a month.（

51、对划线部分提问）How often does he to the cinema?5. To give is better than to receive.（用it做 形式主语）IF is better to give than receive.6. Mr. Smith is a doctor. Mr. Green is a doctor, too.（改为同义句）Roth Mr. Smith anc Mr> Green aredoctors，7. James is an American student（改为同 义句）James comes from fromAm8e To learn a

52、 foreign language well is not easy（用it做形式主语）It is not easy fo learn a foreign4 language well.9. Farmers provide fresh vegetables for city people.（改为同义句）Farmers provide city people with fresh vegetables.10. They built a new house last year（改 为被动语态）A new house was built last year.历届世界环境日主题1974 Only one Earth 只有一个地球1975 Human