英语人教版九年级全册unit 7

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1、Unit7Teenagersshouldbeallowedtochoosetheirownclothes.一、语态概述英语中有两种语态：主动语态和被动语态。主动语态表示主语是动作的执行者。巧记为：主动、主动、主去动。例如：ManypeoplespeakEnglish.谓语：speak的动作是由主语manypeople来执行的。被动语态表示主语是动作的承受者，即行为动作的对象。巧记为：被动、被动、主被动。例如：Englishisspokenbymanypeople.主语English是动词speak的

2、承受者。Heopenedthedoor.他开了门。(主动句)Thedoorwasopened.门被开了。(被动句)判断：你来判断哪个是主动哪个是被动？Wecallthedoctor.Peopledon’tplayfootballhere.Thetruckwascleanedyesterday.MrChenteachesusEnglish.Theclassroomwascleaned.二、被动语态的构成：be+动词的过去分词+bysb（be+done)一般现在时：am／is／are＋taught一般过

3、去时：was／were＋taught一般将来时：will／shallbe＋taught现在进行时：am／is／arebeing＋taught过去进行时：have／hasbeen＋taught现在完成时：have／hasbeen＋taught含有情态动词的被动语态：can/may/must/should...+bedone歌诀是：被动语态be字变，过去分词跟后面。三、主动变被动的方法口诀：主变宾，宾变主，By句尾跟Be字变，Vpp跟后面一、选择题（2×15=30分）一、选择题（2×15=30分）()1

4、._____anewlibrary_____inourschoollastyear?A.Is;builtB.Was;builtC.Does;buildD.Did;build()2.Anaccident____onthisroadlastweek.A.hasbeenhappenedB.washappenedC.ishappenedD.happened()3.Cotton（棉花）____inthesoutheastofChina.A.isgrownB.aregrownC.growsD.grow()4.S

5、ofar,themoon____bymanalready.A.isvisitedB.willbevisitedC.hasbeenvisitedD.wasvisited()5.AtalkonChinesehistory_____intheschoolhallnextweek.A.isgivenB.hasbeengivenC.willbegivenD.gives()6.Howmanytrees____thisyear?A.areplantedB.willplantC.havebeenplantedD.p

6、lanted()7.Alotofthings____bypeopletosavethelittlegirlnow.A.aredoingB.arebeingdoneC.hasbeendoneD.willbedone()8.--When___thiskindofcomputers______?--Lastyear.A.did;useB.was;usedC.is;usedD.are;used()9.TheGreatWall____allovertheworld.A.knowsB.knewC.isknown

7、D.wasknown()10.Who_____thisbook_____?A.did;writtenB.was;writtenbyC.did;writtenD.was;written()11.Astory_____byGrannyyesterday.A.wastoldusB.wastoldtousC.istoldusD.toldus()12.Themonkeywasseen_____offthetree.A.jumpB.jumpsC.jumpedD.tojump()13.Theschoolbag__

8、_behindthechair.A.putsB.canbeputC.canbeputtedD.canput()14.Olderpeople____well.A.looksafterB.mustbelookedafterC.mustlookafterD.lookedafter()15.Ourteacher______carefully.A.shouldbelistenedtoB.shouldbelistenC.belistenedD.islistened1.Theybu