必修二unit4Animalextinction

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1、AnimalextinctionLookatthesepicturesandanswerquestions:They_alongtimeago.disappeared/diedoutQ1:Whatarethey?Q2:Whathappenedtothem?Theyare_dinosaursWhatmightbethereasonsfortheirextinction?GuessingWhendiddinosaurslive?Tensofmillionsofyearsago,longbeforehumanscameintobeing.Whendiddinosaursdieout?FastRead

2、ingFastReadingDinosaursdiedoutsuddenlyabout65millionyearsago.Howdiddinosaursdieout?Maybethatsbecauseahugerockfromspacehittheearthandputtoomuchdustintotheairorbecausetheearthgottoohottoliveon.FastReadingFastReadingFastReadingFastReadingTrueorfalse 1.Therearemanydifferentspeciesofdinosaurandallofthemh

3、avebeenfoundinChina.2.Notlongago,ararenewspeciesofbird-likedinosaurwasdiscoveredinHenanProvince.anumberLiaoningFFCarefulReadingCarefulReading3.Somescientistsaresuredinosaursdiedoutbecausetheearthgottoohotforthedinosaurstoliveonanymore.FthinkCarefulReadingCarefulReadinglongbefore“很久之前很久之前”,引导,引导_从句。从

4、句。Itwillbelongbefore+从句从句(很久之后才很久之后才)Itwill(not)belongbefore+从句从句(不久就不久就.)Languagepoints1.Theylivedontheearthtensofmillionsofyearsago,longbeforehumanscameintobeing时间状语时间状语Ex.It_longbeforewe_theresultOftheexperiment.A.willnotbe;willknowB.is;willknowC.willnotbe;knowD.is;know拓展:拓展:beforelong不久以后不久以后ont

5、heearth在地球上。在地球上。在在earth,sun,moon等表达世等表达世界上独一无二的名词前,要加界上独一无二的名词前,要加the。onearth究竟;到底。究竟;到底。 e into being:形成形成, 产生产生 漏油漏油事件危害事件危害到了许多海鸟的生存,这促使了许多以保护鸟类为到了许多海鸟的生存,这促使了许多以保护鸟类为目标目标的的 社会团体社会团体形成形成_with oil spills _many sea birds, which has encouraged societies to _, whose _ is to save the birdsIncidents h

6、armcome into beinggoal 我们的学校是我们的学校是1997年年建立的建立的 Our school _ in 1997 A B set up was set up Our school _ in 1997 came into beingA B was come into beingcome into being 不可以用被动语态不可以用被动语态There is a story about how the word “ sandwich”_A came into being B was came into beingC came to power D was came to p

7、ower 3.according to: 按照,根据按照,根据.所说所说 根据标题根据标题和图片和图片, 这篇文章主要讲的是什么内容?这篇文章主要讲的是什么内容?What is the main idea of the passage _ the _ and the picturesaccording to title We are paid _ how much work we did. _ many old people, he likes this kind of song.A B C Daccording to according toas a result of With the h

8、elp ofIn common with4.Somescientiststhinkitcameafteranunexpectedincidentwhenincidentn.事件;事变事件;事变Theseriousincidentalongtheborderincreasedourfearsofthewar.accident,incident,event这些名词均有这些名词均有“事事故、事件故、事件”之意。之意。accident:强调偶然或意外发生的不幸事情。强调偶然或意外发生的不幸事情。incident:既可指小事件或附带事件,又可指既可指小事件或附带事件,又可指政治上具有影响的事件或事变。政

9、治上具有影响的事件或事变。event:可指任何大小事件,但尤指历史上的可指任何大小事件,但尤指历史上的重大事件。重大事件。 野生动植物保护基金会定期野生动植物保护基金会定期视察视察大熊猫大熊猫保护区保护区,结果结果 那里的大熊猫得到了那里的大熊猫得到了 很好的保护。很好的保护。 他们确保任何大熊猫他们确保任何大熊猫捕猎捕猎者会受到惩罚,者会受到惩罚,毫不留情毫不留情。 The WWF _ the panda_ regularly _ the pandas there are well protected. They make sure that anyone who _ a panda wil

10、l be punish _inspectsreserveso thathunts without mercyso that“结果结果”引导结果状语从句引导结果状语从句 Please speak loudly and clearly so that“为了为了”引导目的状语从句引导目的状语从句 sothat“如此如此以至于以至于” Every body lent a hand so that The flying carpet travelled so fast that next minute they were in Zimbabwethe work was finished ahead of

11、 time.(结果结果)everyone can hear you( (为了为了) )5.sothatDodoItstoodaboutameter(3feet)tall,weighingabout20kilograms,livingonfruit,andnestingontheground.Thedodohasbeenextinctsincethemid-to-late17thcentury.Itbecameextinctinabout1681.Itsextinctionwasdirectlyattributabletohumanactivity.setatrap设圈套设圈套Theysetatrapforhimandhewalkedrightintoit.Thepolicesetatraptocatchthethief.spearn.矛矛Thefisherusedaspearashisweapon.Newexpressions

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