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2019-2020学年人教新课标高中英语必修二课件:UNIT 4 WILDLIFE PROTECTION 4-4 .ppt

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1、.核心单词根据词义写出正确的单词1_ n.事件;事变2_ adj.凶猛的;猛烈的3_ vt.检查;视察4_ vt.&vi.咬;叮;刺痛incidentfierceinspectbite.拓展词汇根据词义写出正确的单词,并牢记拓展词汇1_ adj.没料到的;意外的expected adj.预期的;预料的2_ n灰尘;尘土;尘埃dusty adj.积满灰尘的3_ n消失disappear vt.消失appear v出现;到场4_ n结局;结尾end v结束;终止 n结束;末端;尽头unexpecteddustdisappearanceending.阅读词汇写出下列单词的汉语意义1extinctio

2、n n._2dinosaur n._3county n._4faithfully adv._灭绝;消亡恐龙县,郡忠诚地;忠实地.重点短语根据汉语意思补全短语1come into _形成;产生2according _按照;根据所说3_ that 以至于;结果4long _很久以前5used _过去常常6_.but also 不仅而且7_ sure 确定无疑地8a number _许多beingtosobeforetonot onlyforof.重点句型1with复合结构After a while she saw some zebra _ beneath their stomachs.过了一会儿她

3、看到了一些斑马,它们身上有一直延伸到腹部的黑白相间的条纹。2long before.很久以前They lived on the earth tens of millions of years ago,_ and their future seemed secure at that time.千百万年前,恐龙就在地球上生活,比人类的出现要早得多,当时它们的前景好像也很安全。with black and white lines goinglong before humans came into being3There be(no).left.“(不)剩下”This is the only home

4、 of the red Colobus monkey but _.这是红色疣猴的唯一栖息地,但是现在所剩无几了。4it作形式主语,that从句为真正的主语。_ in the story nobody helped the dodo.很遗憾在故事中没有人帮助渡渡鸟。there are very few leftIt is a pity thatRead the text(P30)carefully and choose the best answer according to the text.1According to the passage,what can we know about th

5、e dinosaurs?ADinosaurs were once the kindest animals on the earth.BThey lived on the earth together with humans.CThey died out for some unknown reasons.DIt was the temperature that caused them to die out.答案:C2The bird-like dinosaurs were discovered in _.AXixia County,Nanyang,Henan ProvinceBChaoyang

6、County,Liaoning ProvinceCXixia County,Nanyang,Liaoning ProvinceDChaoyang County,Henan Province答案:B3How did scientists know that the bird-like dinosaurs could run as well as climb trees?ABy studying their eggs.BBy studying their teeth.CBy studying their bones.DBy guessing only.答案:C词语积累extinction/kstk

7、n/n.灭绝;消亡extinct adj.不再存在的;已灭绝的;绝种的dinosaur/dans/n.恐龙come into being 形成;产生(相当于 come into existence)a number of.“许多的,苦干的”,后接可数名词的复数形式。作主语时,谓语动词用复数形式。the number of“的数量”,后接可数名词的复数形式。作主语时,谓语动词用单数形式。inspect/nspekt/vt.检查;视察,指上级对下级的“检查、视察”。be surprised to do sth.吃惊地做某事(to do sth.是 surprised的原因)die out 灭亡;逐

8、渐消失unexpected/nkspektd/adj.没料到的;意外的incident/nsdnt/n.事件;事变incident 指小插曲、事件、冲突;accident 指意外事故。dust/dst/n.灰尘;尘土;尘埃dusty adj.多灰尘的live on 继续存在for sure“无疑地,确定地(for certain)”,在句中作状语。according to 按照;根据所说according to me()in my opinion()some adv.大约在数字前等同于 about。ANIMAL EXTINCTIONMany animals have disappeared d

9、uring the long history of the earth.The most famous of these animals are dinosaurs.They lived on the earth tens of millions of years ago,long before humans came into being and their future seemed secure at that time【1】.There were many different kinds of dinosaur and a number of them used to live in

10、China.The eggs of twenty-five species have been found in Xixia County,Nanyang,Henan Province.Not long ago a rare new species of bird-like dinosaur was discovered in Chaoyang County,Liaoning Province.When scientists inspected the bones,they were surprised to find that these dinosaurs could not only r

11、un like the others but also climb trees【2】.They learned this from the way the bones were joined together【3】【1】long before 早在之前,long 用在 before 前表示两个动作发生的时间相隔久远。【2】that these dinosaurs could.是 that 引导的宾语从句,从句中含有并列连词 not only.but also.连接的并列谓语,即 run 与climb。【3】the bones were joined together是定语从句,修饰the wa

12、y,此处省略了引导定语从句的 that 或 in which。此时,the way 也可以理解为 how(如何)。Dinosaurs died out suddenly about 65 million years ago.Some scientists think it came after an unexpected incident when a huge rock from space hit the earth and put too much dust into the air.Others think the earth got too hot for the dinosaurs

13、 to live on【4】any more.Nobody knows for sure why and how dinosaurs disappeared from the earth in such a short time【5】【4】too hot for the dinosaurs to live on 为“tooadj.for sb./sth.to do sth.”结构,意为“对来说,太而不能”。【5】why and how 共同引导宾语从句,作 knows 的宾语。We know many other wild plants,animals,insects and birds ha

14、ve died out more recently.According to a UN report,some 844 animals and plants have disappeared in the last 500 years【6】.The dodo is one of them.It lived on the Island of Mauritius and was a very friendly animal.Please listen to a story of the dodo and how it disappeared from the earth.【6】in the las

15、t 500 years“在过去的 500 年里”,相当于“over/during the past 500 years”,常与现在完成时连用。课文翻译动物灭绝(extinction)从地球有史以来的这段漫长时期,许多动物都消失了。这些动物中最有名的是恐龙(dinosaur)。千百万年前,恐龙就在地球上生活,比人类的出现(come into being)要早得多,当时它们的前景好像也很安全。当时有许多不同种类的恐龙,其中有很多种类曾经生活在中国。25 个种类的恐龙蛋是在河南省南阳西峡县发现的。不久前,在辽宁省的朝阳县新发现了一种罕见的、形状像鸟一样的恐龙。科学家们观察(inspect)它们的骨头

16、时,惊奇地发现这些恐龙不仅跟其他恐龙一样可以跑,而且还可以爬树。科学家们是根据恐龙骨骼的连接方式得知这些的。恐龙大约在 6 500 万年前突然灭绝(die out)了。有些科学家认为恐龙灭绝是发生在一次意外(unexpected)事故(incident)之后,当时宇宙中一块巨石击中地球,因而在空气中扬起太多的尘土(dust)。另外一些科学家则认为,地球变得太热,因此恐龙无法在地球上生活了。没有人确切知道恐龙是出于什么原因,又是怎样在这么短的时间里从地球上消失的。我们知道,近来许多其他的野生动植物、昆虫和鸟类也灭绝了。根据(according to)一份联合国报告,在过去的 500 年里,大约有

17、 844种动植物已经消失。渡渡鸟就是其中的一种。它生活在毛里求斯岛上,是一种非常友好的动物。请听一个关于渡渡鸟的故事,看看它是如何从地球上消失的。第一板块|核心词汇诠释1.bite vt.&vi.叮;咬;刺痛(教材原句 P29)What should you do if you are being bitten by mosquitoes?如果你正在被蚊子叮咬,你应该怎么做?(1)“咬某人的胳膊”表示为 bite sb.in the arm,即“bite人介词the部位”。(2)bite 的过去式为 bit;过去分词为 bitten。People say that barking dogs d

18、ont bite.据说会叫的狗不咬人。即学即练 单句语法填空(1)_(bite)twice,my friend dare not go to my home.(2)The fierce shark bit him _ the leg.发散思维:与 bite 的过去式和过去分词相类似的动词为:hidehidhid/hiddenslideslidslidbitebitbitten,Be into being 形成;产生(教材原句 P30)They lived on the earth tens of millions of years ago,long before humans came int

19、o being and their future seemed secure at that time.千百万年前,恐龙就在地球上生活,比人类的出现要早得多,当时它们的前景好像也很安全。come into power 掌权,上台come into sight 进入视野No one knows for sure when such a custom came into being.没有人确切知道这种风俗是什么时候形成的。It is still uncertain when life came into being.生命是何时形成的还不确定。即学即练 补全句子(1)With the develop

20、ment of modern science and technology,the computer has _(出现)(2)After he _ _(当权),the man devoted most of his time to society work.温馨提示:come into being 无被动语态,也不能用于进行时态。come into beingcame into power3.inspect vt.检查;检验;视察;检阅(教材原句 P30)When scientists inspected the bones,they were surprised to find that t

21、hese dinosaurs could not only run like the others but also climb trees.科学家们观察它们的骨头时,惊奇地发现这些恐龙不仅跟其他恐龙一样可以跑,而且还可以爬树。inspection n.检查;视察inspector n.检查员;视察者It is reported that the Minister of Education will inspect our school.据报道教育部长将视察我们学校。You should inspect the car well before you buy it.在买车之前,你应该仔细检查一

22、番。即学即练 单句语法填空It is said that an _ will come to _ our school,and he will judge our school according to his _.(inspect)inspectorinspectinspection漫画助记You should inspect the goods before signing for them.在签收货物之前你应该进行检验。4.according to 按照;根据所说(教材原句 P30)According to a UN report,some 844 animals and plants

23、have disappeared in the last 500 years.根据一份联合国的报告,在过去的 500 年里,大约有 844 种动植物已经消失。According to the latest survey,many animals have nearly died out.根据最新的调查,许多动物濒临灭绝。He says that everything is going according to the plan.他说一切都在按计划进行。即学即练 一句多译以杰克看来,是全球变暖导致了许多动物的灭绝。(1)_,it is global warming that leads to t

24、he extinction of many animals.(opinion)(2)_,it is global warming that leads to the extinction of many animals.(according)(3)_,it is global warming that leads to the extinction of many animals.(concerned)In Jacks opinionAccording to JackAs far as Jack is concerned名师点津:according to 用来引用出自他人或他处的消息,不能与

25、me,my opinion 或 my point of view 等连用。5.so that.以致于;结果;为了;以便(经典例句)Many athletes take part in the Olympic Games so thatthey can win glory for their homeland.许多运动员参加奥运会为的就是能为祖国赢得荣誉。(1)so that 结果状语从句:从句时态表明动作已经发生。(2)so that 目的状语从句:从句中常有 will,would;can,could;may,might 等情态动词,表明动作尚未发生。She had not planned h

26、er time well so that she did not finish her homework on time.她没把时间计划好,所以没按时完成家庭作业。I spend more time learning English every day so that(in order that)I can make greater progress this year.为了今年取得更大进步,我每天用了更多的时间学英语。即学即练 单句写作每个人都帮了忙,所以工作提前完成了。Everyone lent a hand _ahead of schedule.名师指津:so that 引导目的状语从句

27、时可与 in order that 替换。so that the work was finished第二板块|重点句型解构1.句型公式:with 复合结构(教材原句 P28)After a while she saw some zebra with black and white lines going beneath their stomachs.过了一会儿她看到了一些斑马,它们身上有一直延伸到腹部的黑白相间的条纹。with black and white lines going 为“withn.doing”复合结构。with 复合结构如下:withn./pron.宾补doingto dod

28、oneadj./adv.介词短语He said goodbye to us with tears in his eyes.他含着眼泪与我们告别。With time going by,I have gradually got used to the school life.随着时间的推移,我已逐渐适应了学校生活。即学即练 单句语法填空(1)With the boy _(lead)the way,we had no difficulty in finding his home.(2)With the key _(lose),he had to wait outside the door.(3)Wi

29、th so much work _(do),I have no time for a holiday.名师指津:with 复合结构,指将来时常用动词不定式 to do;表示主动用-ing;表被动与完成常用-ed 形式。leadinglostto do2.句型公式:long before“很久以前”,引导时间状语从句。(教材原句 P30)They lived on the earth tens of millions of years ago,long before humans came into being and their future seemed secure at that tim

30、e.千百万年前,恐龙就在地球上生活,比人类的出现要早得多,当时它们的前景好像也很安全。(1)句中 long before 意为“早在之前;很早;很久以前”,该短语后可以接句子、名词、代词,也可以单独使用,在句中作状语。(2)It is/was not long before.不久就(3)It will be long before.要过很久才I knew Betty long before you got married to her.早在你和贝蒂结婚之前,我就认识她了。It was not long before he came to help me.不久他就来帮助我了。即学即练 单句写作没

31、过多久他就给我回复了信。_ he responded to my letter.,名师指津:before long 不久以后;反义词为 long before。It was not long before.单词拼写1Most European spiders dont _(咬)2He told me some of the funny _(事件)that happened during his journey to Europe.3She felt _(安全的)and protected when she was with her best friend.4Smith had such a _

32、(凶猛的)dog that none of his neighbors dared to go near his home.5I quite enjoyed the book except the dull _(结尾)biteincidentssecurefierceending6Because of something _(意外的),I wonder if I can change my appointment from Tuesday to Friday.7The Minster of Education _(视察)our school last week.8The _(消失)of a s

33、choolgirl was very worrying among the teachers.unexpectedinspecteddisappearance.选词填空in relief;come into being;so that;die out;in danger of;,in peace;according to;burst into laughter 1Youd better arrive a bit earlier _ you can get a good seat for seeing.2All the people present _ after they heard the

34、funny story.3_ the news,the President of that country is going to pay a visit to China next month.4With the change of peoples social roles,new lifestyles have gradually _.so thatburst into laughterAccording tocome into being5If we dont take measures to protect this kind of rare animals,they will _ s

35、ooner or later.6With his grandchildren playing around,the old man lay in the chair _ and looked at them kindly.7You will be _ catching a cold if you dont put on your coat outside in such cold weather.8Seeing his daughter return home safe and sound,the father smiled _.die outin peacein danger ofin re

36、lief.单句写作1With time _,we have built up a good relationship.随着岁月的流逝,我们建立了良好的关系。2Hurry up,_ for us to catch up with the last bus.快点,我们赶上最后一班车的时间不多了。3This all happened _,so it had nothing to do with you.这一切都发生在你来这儿很久以前,因此它和你无关。going bythere is little time leftlong before you came here4We need to _ childrens mental health.我们需要特别注意孩子们的精神健康。5John received an invitation to dinner,and _,he gladly accepted it.约翰收到了晚宴的邀请,由于完成了工作,他高兴地接受了。pay special attention towith his work finished

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