m5u1不定式和动名词.doc

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1、Period5GrammarandusageI.LearningAimsandDemands1.Toknowwhattoinfinitive,bareinfinitiveandtheverb-ingformare.2.Tolearnhowtousethemindifferentsituations.II.Learningproceduresstep1.Lead-inAnalysethefollowingsentences:Iwaswatchinganenglishprogrammeat8o’clockyesterday.Drivingseemsexciting.Ican

2、notfindmyhistorybook.step2.Grammarandusage一、动词不定式一、概念及构成不定式可作主语、宾语、宾补、状语、表语、定语和独立成分，但不能单独作谓语。现以动词do为例，将不定式的时态和语态列表如下：语态时态主动被动一般式todotobedone进行式tobedoing完成式tohavedonetohavebeendone完成进行式tohavebeendoing二、不定式的否定式⑴Shedecidednottobelateagain．她决定不再迟到了。⑵Hepromisednevertomakesuchastupidmistake．他许

3、诺不再犯这样蠢的错误。三、疑问词+不定式不定式常与疑问词who，which，when，where，what等连用，在句中起名词作用，可充当主语、宾语、表语等。Eg:Howtosolvetheproblemisveryimportant．(主语)如何解决这一问题很重要。四、不定式符号to的省略。1．动词不定式在介词but，except后面时，如果这些介词之前有行为动词do的各种形式，那么，这些介词后的不定式常不带to，否则要带to。Thebushadpassedby．Theyhadnothingtodobutwait．(=Theyhadnochoicebuttowait.

4、)公交车已经过去了，他们别无选择只能等。2．短语hadbetter，wouldrather，cannotbut，cannothelpbut，cannotchoosebut等之后跟不带to的不定式。①Theycouldn’tchoosebutstaythere．他们不得不呆在那儿。②Hewouldratherdiethangivein．他宁死不屈。五、Practice1.Thoughhehadoftenmadehislittlesister_____,todayhewasmade_____byhislittlesister.(87)A.cry;tocryB.crying;

5、cryingC.cry;cryD.tocry;cry2.Theywouldnotallowhim_____acrosstheenemyline.(87)A.toriskgoingB.riskingtogoC.forrisktogoD.riskgoing3.Shereachedthetopofthehillandstopped_____onabigrockbythesideofthepath.(90)A.tohaverestedB.restingC.torestD.rest4.Thepurposeofnewtechnologiesistomakelifeeasier,__

6、___itmoredifficult.(99)A.notmakeB.nottomakeC.notmakingD.donotmake5.Chinahaspromisedtoreviseitsexistingregulationsand________newpoliciesaccordingtoWTOrequirements.（2006上海春40）A.formingB.toformC.tobeformingD.haveformed6.---Iusuallygotherebytrain.(92)---Whynot_____byboatforachange.A.totrygoi

7、ngB.tryingtogoC.totryandgoD.trygoing7.Havingatripabroadiscertainlygoodfortheoldcouple,butitremains______whethertheywillenjoyit.(2002)A.toseeB.tobeseenC.seeingD.seen8.I'veworkedwithchildrenbefore,soIknowwhat______inmynewjob.(2000)A.expectedB.toexpectC.tobeexpectingD.expect