浙江省2022年高中英语 Unit4 Using language课件 新人教版必修2

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1、Unit 4extinctiondinosaurinspectincidentdust fiercen.灭绝；消亡灭绝；消亡n.恐龙恐龙vt.检查；视察检查；视察n.事件；事变事件；事变n.灰尘；尘土；尘埃灰尘；尘土；尘埃adj.凶猛的；猛烈的凶猛的；猛烈的Words previewcome into beingaccording to形成；产生形成；产生按照；根据按照；根据所说所说Expressions previewAnimal extinctionFast reading1.When did dinosaurs live?2.When did dinosaurs die out?Tens

2、 of millions of years ago.About 65 million years ago.3.According to the UN report,how many animals and plants have disappeared in the last 500 years.844Detailed reading:True or false 1.1.There were many different kinds of dinosaur and all of them have been found in China.2.2.Not long ago,a rare new

3、species of bird-like dinosaur was discovered in Henan Province.a numberLiaoning FF3.Some scientists are sure dinosaurs died out because the earth got too hot for the dinosaurs to live on any more.4.Dinosaurs died out suddenly about 65 million years ago and many animals have disappeared in the last 5

4、00 years.FTthink Discuss the possible reasons for the disappearance of dinosaurs.Think about what is mentioned in the text.1.It came after an unexpected incident when a huge rock from space hit the earth and put too much dust into the air.2.The earth got too hot to live on.Discuss the possible reaso

5、ns for the disappearance of dinosaurs.There may be other reasons for it.For reference The sudden mass extinction of the non-avian dinosaurs,which occurred around 65 million years ago,is one of the most intriguing mysteries in paleontology(古生古生物学物学).The nature of the event that caused this mass extin

6、ction has been extensively studied since the 1970s.At present,several related theories are broadly supported by paleontologists:Asteroid collision Multiple collisions Environment changesdodo渡渡鸟渡渡鸟Before listening to the dodos story,try to predict in pairs how it might have become extinct.Listen to t

7、he tape and choose the sentence on page 30 which gives the main idea of the story:This story is about how the dodo became extinct.No 1 is wrong.It is not fair to blame the dodo for his disappearance.No 3 only explains half the story.The dodo and man did become friends but only because man wanted to

8、kill the dodos as easily as possible.No 4 is wrong because the other animals and birds did not do much to save the dodo.They warned him but did not help him.Listen to the tape and choose the correct answer to complete each sentence on page 30.Keys:1 C 2 B 3 CListening textThe story of the dodo Once

9、upon a time I lived on the island of Mauritius.I was called“dodo”.There were many of us and we were friends with all the other animals on the island.One day a new animal came to my island.His name was Man,and at first we seemed to be good friends.We went everywhere together and I shared my food with

10、 him.However,I began to wonder why several of my dodo friends had disappeared.Then the number of our species began to decrease quickly.I was so worried that I asked the other animals and they all told me,“Your friends are being killed and eaten by Man while you are hunting for food.”Had Man eaten th

11、em?I couldnt believe it!When I asked Man directly,he seemed surprised.“I havent seen the other dodos either.”he said.“Maybe someone else killed them.”I believed him but when more dodos disappeared I set a trap.I went off as if I was going to hunt but instead I hid in the forest and waited.Sure enoug

12、h Man came along.He ran after the last of my dodo friends and killed her.I felt so angry that I rushed out of my hiding place and straight at Mans spear.He killed me too.After that there were no more dodos in the world.So my motto is:be careful who you trust.1 a type of reptile(爬行动物爬行动物)which stoppe

13、d existing about 60 000 000 years ago.There were many different types of dinosaur,some of which were extremely large.2 an old-fashioned person or thing that people no longer consider to be useful:This typewriters a bit of a dinosaur,isnt it?1 dinosaur n.C2 come into being 形成；产生形成；产生1.A new rule will

14、 soon come into being.一个新规则很快就要出台了。一个新规则很快就要出台了。2.A car comes into being through a series of complex operations.汽车经过一连串的复杂作业程序而制汽车经过一连串的复杂作业程序而制成。成。3 inspectvt.检查；视察检查；视察1.It was strange that nobody inspected my ticket before I got on the train.很奇怪，我上火车前，竟然没有人查看我很奇怪，我上火车前，竟然没有人查看我的车票。的车票。2.Police we

15、re called out to keep at the airport,and inspect the arriving planes.警察们被紧急召集起来去守卫机场，并对警察们被紧急召集起来去守卫机场，并对到达的飞机进行检查。到达的飞机进行检查。4 incident n.Can event which is either unpleasant or unusual:an isolated/serious/unfortunate incidentA youth was seriously injured in a shooting incident on Saturday night.5 d

16、ust n.Udry dirt in the form of powder that covers surfaces inside a building,or very small dry pieces of earth,sand or other substances:The furniture was covered in dust and cobwebs(蜘蛛网蜘蛛网).A cloud of dust rose in the air as the car roared past.6 fierce adj.1 physically violent and frightening:a fie

17、rce attack/battleTwo men were shot during fierce fighting last weekend.2 strong and powerful:Fierce winds/seas prevented the race from taking place.3 showing strong feeling or energetic activity:There is fierce competition to join the Special Branch.4 US INFORMAL difficult:The chemistry exam was fie

18、rce!7 according to 按照；根据按照；根据所说所说1.According to facts in my possession he can not possibly be guilty.根据我所掌握的事实，他是不可能有罪的。根据我所掌握的事实，他是不可能有罪的。2.According to these figures,our company is doing well.从这些数字来看，我们的公司经营得不错。从这些数字来看，我们的公司经营得不错。In pairs choose another endangered animal which you know about.Analy

19、se why this animal is endangered.over hunted lack of foodhabitat is being threatenedFor exampleAnimal Habitat Reason for problemPolar bearWhite RhinoNorth PoleAfrica Warming of the seas means it is losing its habitat of ice flows1 Destruction of the grasslands where it lives 2 Hunting for its horn3

20、Too friendly and so easily caughtINTENTIONPURPOSEIm going to to help/saveI intend/mean/plan to to protect fromI will so that Discuss what you might do to save it.Useful phrasesI feel like Id like to Im ready to Id rather not in order to but do to teach them a lessonto punish those who do harm to wil

21、dlife Support zoos,reserves,and organizations that help animals.Volunteer your money,time and ideas.Everyone shares a responsibility in helping to save endangered animals that live on Earth.Here are some ways we can help all wildlife:WAYS TO SAVE ENDANGERED ANIMALS Avoid buying any products made fro

22、m endangered animals.Learn all about endangered animals and share this information with everyone.Dont pollute.Write a letter to WWF based on what you have discussed,asking them to help you save your endangered animals.All letters have a start and an ending.The language used depends on how well the w

23、riter knows the person to whom he/she is writing.(pay attention to the guidelines on your book)FormalInformal Starts Dear,Hi,My dear,Dearest,Endings Yours sincerely,Sincerely,Sincerely yours,Yours truly,Yours faithfully,Love,Cheers,Regards,Best wishes,Yours,Homework1.Review the words and expressions weve learned.2.Finish the exercises on the Workbook.