高中英语：Learning about language课件人教版教材选修7 课件.ppt

Learning
aboutlanguageAnswerkeysforEx.1onPage4:NounAnswerkeysforEx.2onPage4:AnswerkeysforEx.3onPage4:不定式是动词的一种非限定形式,由“to+动词原形”构成,没有人称和数的变化,在句中不能独立作谓语.但不定式具有名词、形容词和副词的特征，在句中可以作主语、宾语、宾语补足语、表语、定语、状语等。1.Itisgoodtohelpothers.
2.Itismyambitiontomakesurethatthedisabledpeopleinourneighborhoodhaveaccesstoallpublicbuildings.
3.MyambitionistoworkinthecomputerindustrywhenIgrowup.4.Idon’thavetimetositaroundfeelingsorryformyself.
5.Iamtheonlystudentinmyclasstohaveapetsnake.
6.Abigcompanyhasdecidedtobuyitfromme.
7.MyfellowstudentshavebeguntoacceptmeforwhoIam.8.Ihavehadtoworkhardtoliveanormallife.
9.SomedaysIamtootiredtogetoutofbed.

10.Wemustcallonlocalgovernmentto givefinancialassistancetodisabled people.不定式在句中的功能
做主语:
那样做是很幼稚的.
Toactlikethatischildish.
为避免句子出现“头重脚轻”现象,常用it做形式主语,将真正主语的不定式后置.
要学好英语不是那么容易的。
Ex.ItisnoteasytolearnEnglishwell.(2)做宾语
她喜欢谈论这件事情。
Ex.Shelovestotalkaboutthematter.
他希望不久能找到工作.
Hehopestofindajobsoon.常接不定式做宾语的动词有：afford,agree,aim,arrange,ask,attempt,begin,bother,care,choose,continue,dare,decide,demand,expect,fail,hate,hope,learn,long,manage,mean,need,offer,plan,prefer,prepare,promise,prove,refuse,want,wish等<1>.不定式有时和连接代/副词一起构成宾语.
Ex.Doyourememberwhichwaytogetthere?
下一步干什么你决定了吗?
Haveyoudecidedwhattodonext?
我来问他怎么样开这机器.
I’llaskhimhowtooperatethemachine.
<2>有时不定式由whether引起.
Ididn’tknowwhethertolaughorcryaboutit.<3>feel,find,judge,make,think,believe,consider等动词后如果是不定式做宾语,补语是形容词(间或是名词),常用it作形式宾语,把不定式后移.
Ex.Ifinditdifficulttoworkwithhim.3.做宾语补足语:
常带to的不定式做宾语补足语的动词有:ask,beg,prefer,help,promise,wish,want,expect,permit,request,allow,command,tell,invite,cause,encourage,warn,advise,persuade,force,order,remind,teach,等.
后接不带to的不定式做宾语补足语的动词有:let,hear,have,make,see,observe,feel,watch,notice等.
Ex.Thepolicemansawachildplayinthestreet.4.做表语
不定式可用作表语,说明主语的具体内容.
Myworkistocleantheroomeveryday.
我的梦想是成为一名医生.
Hisdreamistobeadoctor.6.做状语
(1)做目的状语，常用的结构：todo;inordertodo,soastodo,so/such…astodo,etc.
Ex.Icomeheretosaygood-byetoyou.
(2)做结果状语：常与副词only,enough或too连用。
Hestudiedhardonlytofai