人教版高一英语必修一unit4知识点及练习

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1、必修I---unit4I---IVEarthquakes一、知识点1.Nowimaginetherehasbeenabigearthquake.现在，假设有一次大地震。“There+be+主语+其它成分”结构中there为引导词，本身无意义，谓语动词按照就近一致原则。其它相似句型还有：Therehappentobe碰巧有Thereseems/appearstobe好像有Thereislikelytobe可能有Theremay/mightbe也许有Theremustbe一定有Therecan’tbe不可能有Thereissaid/report

2、edtobe据说/据报道有Thereusedtobe曾经有Thereissure/certaintobe一定有2.happento.It(so)happenedthat…DidyouhearwhathappenedtoDavidlastnight?你听说大卫昨天晚上发生什么事了吗?WhatwillhappentothechildrenifPeterandAlicebreakup?如果彼得和爱丽丝离婚孩子们将怎么办?IhappenedtoseePeteronthewaytothebookstoreyesterday.昨天我去书店的路上碰巧遇见

3、了彼得。ItsohappenedthatIsawPeteronthewaytothebookstoreyesterday.昨天我去书店的路上碰巧遇见了彼得。Ihappenedtobeoutwhenhecalled.他来访时，恰巧我出去了。(=IthappenedthatIwasoutwhenhecalled.)IhappenedonjustthethingIhadbeenlookingfor.我偶然发现了我所要找的东西。3.rightaway毫不迟疑，立刻Heisill;youshouldcallinthedoctorrightaway.他

4、病了,你应该立即请大夫来。4.Asmellygascameoutofthecracks.裂缝里冒出臭气。5.Inthefarmyards,thechickensandeventhepigsweretoonervoustoeat.农家大院里，鸡甚至猪都紧张得不想吃食。6.Buttheonemillionpeopleofthecity,whothoughtlittleoftheseevents,wereasleepasusualthatnight.但是，这个城市的一百万居民都没有把这些情况当一回事，当天晚上照常睡着了。7.Itseemedasi

5、ftheworldwasatanend.世界似乎到了末日。从句表示“(在某人)看来好像；似乎”①Itseems/looks/appearsasif/though…看起来好像…②Sb./Sth.looksasif/though…(不用seem/appear)③Thereseems/appears(tobe)…(不用look)Thereappearstohavebeenamistake.=Itappearsthattherehasbeenamistake.④Itseemsso.=Soitseems.看来似乎是这样。8.Infifteenterr

6、iblesecondsalargecitylayinruins.在可怕的15秒钟内，一座大城市就沦落为一片废墟之中。9.Two-thirdsofthemdiedorinjuredduringtheearthquake.三人之二的人在地震中死去或受伤。10.Thenumberofpeoplewhowerekilledorinjuredreachedmorethan400,000.死伤的人数达到40多万。10.Someoftherescueworkersanddoctorsweretrappedundertheruins.有些医生和救援人员被困

7、在废墟下面。11.Allhopewasnotlost.不是所有的希望都破灭了。该句为部分否定。All,both,everyone,everybody,everything以及every+名词都表示全部肯定；但当not在它们之前或之后都表示部分否定。noone,nonenobody,nothing,not…any,以及no+名词都表示全部否定。如：①Bothofthemhaven’treadthisstory.并非他们二人都看过这个故事。②Alloftheboysareclever,butnoneofthemcanworkoutthispro

8、blem.这些男孩都很聪明，但没有一个人能解出这道题。③Allbamboodoesn’tgrowtall.=Notallbamboogrowstall.并非所有的竹子都长的高。1