2017中考英语知识点:不定式(二)

合集下载
  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

2017中考英语知识点:不定式(二)plicatedproblem.

2.Thestrangerofferedtoshowmetheway.

3.Mr.SmithundertooktobuildanewplantinSouthAfrica.

动词+疑问代(副)词+不定式:

这类动词常见的有advise,decide,findout,forget,inquire,know,learn,see,regard,remember,teac h,tell,understand,wonder等。常见的疑问代(副)词有:what,when,where,which,how,whether等。

1.Hedoesnotknowwhentostart.

2.Youcandecidewhethertocontinueortostop.

3.Iwillshowyouhowtodealwithit.

有时,不定式可由it代替,而把不定式放到后面去。这可以用这一结构表达:动词(如find,think,consider,feel等)+it+形容词+不定式。

1.Sheconsidersitnecessarytomakefriendswithhim.

2.Wefinditdifficulttofinishallthehomeworkbefore9o’clock.

3)不定式做表语

一种情况为主语是不定式(表示条件);表语也是不定式(表示结果):

1.Toseeistobelieve.

2.Toworkmeanstoearnaliving.

另一种情况为主语是以aim,duty,hope,idea,job,plan,problem,purpose,

thing,wish等名词为中心的短语,或以what引导的名词性从句,不定式表语对主语起补充说明作用:;例如:

1.Hisaimistostudyabroadinthenearfuture.

2.Themostimportantthingistonegotiatewiththemabouttheprice.

3.WhatIwanttosayistoforgetalltheunhappyexperience.

4)不定式作定语

不定式结构作名词词组修饰语主要有三种类型:

第一种,被修饰的名词词组是不定式的逻辑宾语。例如:

1.Therewasreallynothingtofear.

2.Hegavemeaninterestingbooktoread.

如果不定式是不及物动词,后面就得加相应的介词。例如:

1.Maryneedsafriendtoplaywith.

2.Thatgirlhasnothingtoworryabout.

3.Theyhaveastrictteachertolistento.

4.Althoughthefilmhadbeenonfortenminutes,Istillwasnotabletofindachairto siton.

第二种,被修饰的名词词组是不定式的逻辑主语;例如:

1.Haveyougotakeytounlockthedoor?

2.Theactiontobetakeniscorrect.

3.Thereisnothingtobegainedbypretending.

第三种,被修饰的名词词组是不定式的同位结构。这类名词通常是表

示企图、努力、倾向、目的、愿望、is算、能力、意向等意义的名词:ability,attempt,effort,impulse,inclination,wish等。例如:

1.Herdaughterwillmakeanevenbiggerefforttopleaseher.

2.Ihavenowishtoquarrelwithyou.

3.NeitherofthemhadanyinclinationtodobusinesswithMary.

5)不定式作状语

不定式结构在句中作状语通常都能转换为限制性状语从句。例如作原因状语:

1.Theyarequitesurprisedtoseethegreatchangestakingplaceinthearea.

2.Theyarequitesurprisedbecausetheyseethegreatchangestakingplaceinthea rea.

3.Hewasluckytoarrivebeforedark.

4.Hewasluckybecausehearrivedbeforedark.

作目的状语:

1.Sheraisedhervoicetobehearedbetter.

2.Sheraisedhervoicesothatshecouldheardbetter.

3.WewentviaHeidelbergtomissthetrafficjam.

4.WewentviaHeidelbergsothatwecouldmissthetrafficjam.

作结果状语:

1.TheFrenchfootballteamplayedsosuccessfullyastodefeattheBrazilians.

2.TheFrenchfootballteamplayedsosuccessfullythattheyevendefeatedtheBra

zilians.

3.Hegottothestationonlytobetoldthetrainhadgone.

4.Hegottothestationandwastoldthatthetrainhadgone.

不带to的不定式的使用

动词不定式通常带to,但在有些搭配中不带to,在另一些搭配中可带to可不带to。归纳起来,以下情况下使用不带to不定式:

1)在can/could,/may/might,will/would,shall/should,must,need,dare等情态动词之后,动词不定式不带to。

2)在表示感觉意义的动词,如see,feel,watch,notice,smell,hear,observe等后,或是表示“致使”意义的动词,如have,let,make等后,动词不定式不带to。例如:

1.Ioftenheardhimsaythathewouldstudyhard.

2.Imusthavehimseehisownmistakes.

但是,当这类结构转换为被动语态时,后面的不带to不定式一般转换为带to不定式。

例如:

1.Hewasoftenheardtosaythathewouldstudyhard.

2.Afterhehadfinishedspeaking,hewasmadetoanswerinnumerablequestions.

3)在动词help之后可用不带to的不定式,也可用带to的不定式。例如:1.Helptheoldlady(to)carrytheheavybox.

相关文档
最新文档