山东省莘县2012-2013学年高一英语课件： UNIT7 LESSON 2 .ppt

1、Unit 7 The SeaLesson 2&Lesson 3Lesson 2 Protecting the Seathe beautiful and smooth seaThe sea is not only useful,but also very important to us.People can get sea food such as:fish,sea animals and plants;The sea is rich in many natural resources.we can get oil,natural gas and some metals,besides,the

2、sea has a great effect on climate on the earth.Pair Work:Before you startHow do people use the sea?How is the sea important to people?Discuss in pairs.Example:catch fish in the sea.Talk:Whats sea pollution?Find the meanings of these key words and use them to talk about the issue.Key words:pollute,po

3、llution,over-fishing,industrial waste,plastic,oil,chemicals,rubbish,deal with a problem,bandirtyHowever,do you know how the sea is now?The sea is being“ill”now.It is badly polluted.pollutedSea pollution from factories,cities,agriculture,nuclear power station and oil ship.Two oilships collided and th

4、e oil leaked into the sea Oil and petroleum polluted the seachemical wasteThe industrial waste seriously polluted our Yellow RiverSea pollution caused fish and sea animals to dieover-fishingThe industrial waste seriously polluted the sea.Rubbish and plastic make the water polluted.The Sea is weeping

5、What will happen?The sea is important to us.But with the development of society,human beings explore and seize the sea without limit,which will do harm to the sea.Sea pollution causedfish and sea animalsto dieWe should protect the sea,includingour sea animals.Zhi Hong and Fang Zhou are also talking

6、about protecting the sea.What is Zhi Hongs project about?Its about protecting the sea.ListeningListen to the tape again and complete the table.Problem 1Problem 2Causes for Problem 1Causes for Problem 2Solutions to Problem 1Solutions to Problem 22.What is the problem 2?PollutionOver-fishingListen to

7、the interview again and answer the questions.1.What is the problem 1?3.What are the reasons for problem 2?Too many fishermen in the same place,better technology can catch more fish.4.What are the causes of problem 1?chemicals,plastic,rubbish,oil,industrial waste from factories and agricultural waste

8、.5.What are the solutions to problem 1?Government departments should look for ways to reduce pollution,keep a record of levels of pollution,finding where it comes from,punishing polluters who break the law.6.What are the solutions to problem 2?Control the number of fish that people can catch,ban fis

9、hing completely for a few months,help people to get other kinds of jobs.Interaction Speaker Listener Some fish may disappear (1)_altogether.now there are too many (2)_fishermen fishing in the that there are more same place.fishermen now than there were before?Most of them come from (3)_industrial an

10、d agricultural waste a big problem.Really?Do you meanIt sounds likeAre they?Yes,I supposeit must beThats a good idea.Some government (4)_departments are tryingto deal with the situation.often its quite difficult (5)_to find whos responsible _ for pollution.They also try to help (6)_people to get oth

11、er kinds of jobs so there are lesspeople trying to make a living from fishing.Language points:1.deal with 处理；对付，应付How can we deal with this problem?(P10)我们怎么能处理这个问题？He pointed out that water pollution in this area must be dealt with at once.他指出必须立刻处理这个地区的水污染。That man is easy(difficult)to deal with.那

12、个人很好（很难）相处。【拓展】deal with 和do with do with 常与连接代词 what 连用，而deal with 常与连接副词 how 连用。一般地说，do with 表示“处置”、“忍受”、“相处”、“有关”等。deal with 意义很广，常表示“对付”、“应付”、“处理”、“安排”、“论述”、“涉及”等。【即学即练】1.Books_ problems on computer are always bestselling books.A.dealing to B.dealing with C.doing with D.doing for【解析】选B。句意为：涉及到电脑

13、问题的书常常很畅销。deal with表 “涉及”；do with表“对付，应付”。2.完成句子：We dont know _(如何处理)this complex case.how to deal with=what to do with2.ban v.禁止People should be banned from smoking in public places.公共场合应禁止抽烟。The treaty bans underground nuclear test.那条条约禁止地下核试验。【拓展】ban sb from doing sth 严禁某人做某事stop/keep/discourage/

14、prevent sb from doing sth阻止某人做某事【巧学活用】It is a rule that the students are banned _ computer games in our school.Ato play Bfrom playingCof playing Don playing【解析】选B。句意：制度规定不允许我们学校的学生打电脑游戏。ban sb from doing sth.3.responsible（常与to,for连用）有责任的；应负责任的often its quite difficult to find whos responsible for po

15、llution.(P11)找到负责任的人经常是非常困难的。We are responsible for our own action.我们要为自己的行为负责。John is responsible for organizing the party.约翰负责组织晚会。【拓展】be responsible for对事故等负责任 be responsible to对自己的行动和向上级承担责任 responsible作前置定语为“可信赖的，重要的”；作后置定语为“负责任的”哦，a responsible leader意为“一位可信赖的领导人”我猜对了吧？【即学即练】I think he is so d

16、etermined that he wont give in you may try your luck and see if you can persuade that old _fellow.【2012吉安高一检测】A.stubborn B.uneducated C.friendly D.responsible【解析】选A。句意：我认为他的决心如此大，他不会屈服的。你可以试试你的运气，看看你是否能劝服那位倔强的老家伙。stubborn固执的，倔强的；uneducated未受教育的；friendly友好的；responsible重要的。4.make a living by/from 以谋生T

17、hey also try to help people to get other kinds of jobs so there are less people trying to make a living by/from fishing.(P11)他们也帮助人们找到其他种类的工作，因此这里的有更少的人以捕鱼为生。【拓展】熟记make a短语：make a decision 作决定make a speech 作演讲make an appointment 约会make a cake 做蛋糕make the bed 铺床make preparations for 为做准备【即学即练】用make a

18、短语翻译下列句子。(1)他靠开出租车谋生。_ (2)经理几分钟内就做出了最终的决定。_(3)今天早上校长做了很精彩的演讲。_He makes a living by/from driving a taxi.The manager made a final decision in a few minutes.The headmaster made a wonderful speech this morning.cleaning oilWhat measures do you think we should take to protect the sea?dolphinLesson 3 The S

19、ea Worldwhalepenguincoral reefraysealcrabstarfishpolar bearSea fishtropical fishdeadliest killer in the sea white sharkanglerfishthe tiniest fish in the worldgoby toadfishgiant squidPolar World Sea Theatre Match these comments from visitors to the different areas of the underwater world.1.“It was te

20、rrible!There are too many in the pool and I dont think they enjoy the show.I think its cruel to them do tricks.”2.“How do they stop it from melting?It was great but I felt quite cold after a while.”Discovery PoolVirtual Reality Voyage 3.“On the one hand,we loved most of the attractions,especially th

21、e one for the children.On the other hand,I didnt think that the caf was as good as it should be.”4.“I learned a lot.I mean,I didnt know that a fish could be noisy!However,I thought some of the other effects were less realistic.”Read to learn1.Which fish use a light to attract food?Anglerfish2.Which

22、fish can make a loud noise?Toadfish3.What kind of fish appear to fly in the water?Rays4.What kind of fish children can touch?Crab,starfish and other smaller creatures5.Which are the smallest fish in the world?Goby Language Points 1.watch out 注意，当心(单独用于祈使句)watch out for 密切注意，留意；提防【即学即练】完成句子(1)当心，别把桌子

23、上的纸弄脏了。_!Dont dirty the paper on the desk.(2)注意一个戴黑帽子的高个子男人。_ in a black hat.(3)我们必须小心公共汽车上的小偷。We must _ on the bus.Watch outWatch out for a tall manwatch out for the thieves2.measure vi.&vt.（长度等）为，测量n.策略，措施 An average fish like this measures 90 centimeters in length,（P13）像这样的一条普通的鱼长90厘米。The lake me

24、asures 130 by 80 kilometers.这条湖长一百三十公里宽八十公里。【辨析】means通常用于固定短语中如:by means of 通过某些方法 way方法，方式！通常这样表示:on ones own way=通过某人特有的方法method“措施,解决方案”通常用于表示解决某问题的系统方法。如：teaching method教学方法measure 策略，措施。take measure采取措施【即学即练】He tried many _ out of laziness,but finally he found it was very hard for him to get ou

25、t of it.【2012重庆高一检测】A.ways B.means C.methods D measures【解析】选A。句意：他尝试了许多摆脱懒惰的方法，但是最后他发现他摆脱懒惰很难。ways方法；means方式，手段；methods（系统的）方法；measures措施。课文中出现的比较级1.Its three times as big as underwater world.2.They are less colourful than some other fish but they move beautifully.3.You certainly wont find a noisier

26、 fish.4.They have a huge mouth and can eat fish as big asthemselves.Grammar比较级的句型结构1.“as+adj./adv.+as或not so(as)+adj./adv.+as”句型。该句型常用来描述两个比较对象在程度上的相似或不同(即平时说的“等级比较和不等级比较”)。e.g：Zhang Jike is not so experienced as Wang Hao.张继科不如王皓有经验。2.“as many/few+可数名词复数+as”或“as much/little(少的)+不可数名词+as”。前者描述数目上的接近，

27、后者描述量的相近。e.g.1)You may borrow as many books as you can.你能借多少书就借多少。2)“Drink as much water as you can.”the doctor said to him.医生对他说道：“你要尽可能的多喝些水。”3.“主语+比较级+than any other+可数名词单数/the others或the other+名词复数/anyone else”结构表示：主语所描述的事物比其他任何一个都比较级形式表示最高级含义。e.g.:Li Ming is much cleverer than any other student

28、/the other students/anyne else in their class.=Li Ming is the tallest in their class.李明是他们班中最聪明的学生。注意：若比较范围不同，than后应用“any+可数名词的复数形式+其他”。e.g.:China is larger than any country in Africa.中国比非洲的任何一个国家都大。4.诸如not,never之类的否定词与形容词或副词的比较级连用,表示最高级含义.意为:“再没有比更的了”.e.g.I cant agree with you any more.我非常同意你的意见。Yo

29、u cant be more careful with your work.你不可能对你的工作更细心了。5.“形容词+to”结构也可表示比较含义。e.g.1）This kind of car is superior in quality to that.这种汽车的质量比那一种好得多。(superior to意为：优于；胜过。)2）Li ping is three years senior to Liu Gang.李平比刘刚大三岁。(senior to意为：年长于；资格老于；地位高于。)6.“no+比较级+than”结构表示对两个比较对象都进行否定(可由as+形容词反义词的原级+as结构来改写)

30、。e.g.Liu Xiang can run no slower than Roberts.刘翔和罗伯斯跑的一样快。(相当于Liu Xiang can run as fast as Roberts.)7.“not more+比较级+than”结构表示在程度上“前者不如后者”。e.g.:This book is not more interesting than that one.这本书不如那本书有趣。(相当于:This book is less interesting than that one.)8.“形容词比较级+than+形容词”,意为:“与其倒不如”。e.g.Jack is much

31、harder than clever.与其说杰克聪明，倒不如说他学习用功。9.would ratherthan,preferto,prefer to dorather than do这三个句型表示“宁愿而不愿;喜欢胜过；宁愿做而不愿做”含义。虽无比较级形式，但表示比较级含义。e.g.She would rather die than give in.她宁死不屈。He preferred to go out rather than stay at home.他宁愿出去也不愿呆在家里。10.“The+比较级，the+比较级”.该结构意为“越，越”。e.g.：The more difficult t

32、he questions are,the less likely he is able to answer them.问题越难，他回答出来的可能性就越小。11.what有时也可以表示“比较”关系，说明两种事物的相同或相似性。what的该种用法常用于书面语，用来加强修辞效果，含有比喻含义，相当于as，意为“好比；正如；就像一样”。what的该类用法共有3种情况：(1)A is to B what C is to D Twelve is to two what twenty-four is to four.十二比二就等于二十四比四。(2)what C is to D,A is to B What

33、food is to the body,a book is to the mind.书籍对于思想犹如食物对于身体。(3)what C is to D,that A is to B What the gun is to a soldier,that the pen is to a writer.作家的笔犹如战士的枪。Dolphins can be up to twelve times(small)_ than whales but(big)_ is not always better.Dolphins are probably(intelligent)_ creatures in the sea

34、.(big)_ dolphins can measure four meters but common dolphins are usually less than two metres long.smallerbigthe most intelligentThe biggestWrite the adjectives in the correct form.the most popularthe easiestbetterthe friendliestDolphins are one of(friendly)_ creatures to man and often follow ships.

35、Dolphins also have a(good)_ system of communication than other animals.They are(easy)_ of all animals to train and are often(popular)_ animals in zoos and aquariums round the world.This is a story of a very big fish and a very small fisherman.Six-year-old Ben Wood is only 100 cm tall in _(high),but

36、he caught a fish which is 120 cm in _(long).And the fish,at forty-one kilos,is _(big)rainbow trout that any fishermen have ever caught.An average rainbow trout measures 90 cm in _(long),and it can weigh _(much)30 kilos.heightlengththe biggestlengthas much asComplete the text with the correct form of the words in brackets.Homework:WritingPractise using the useful words about protecting the sea by making sentences with them:protect,pollute,pollution,waste,deal with,be responsible for,break the law,punish,keep a record of,control,communicate.East,west,home is best.金窝、银窝，不如自己的草窝。