高中英语选修七Unit01B省公开课金奖全国赛课一等奖微课获奖PPT课件.pptx

DiscoveringusefulwordsandexpressionsEx.3RevisingusefulstructuresEx.3Unit1HowcanyoubelieveIcanflylikeabird?不定式由“to+动词原形”组成,其否定形式是“not/nevertodo”,不定式能够带宾语或状语组成不定式短语,没有些人称和数改变,但有时态和语态改变。不定式能够作主语、宾语、状语、表语和定语，但不能单独作谓语。不定式逻辑主语有时用“for+名词或代词宾格”组成。动词不定式作用FunctionsofInfinitive1不定式作主语(subject)Myjobtoprotecttheworld.
Yourtaskisto_____________.Seeingistobelieve.
Toseeisbelieving.
Seeingisbelieving.
Toseeistobelieve.YaoMinglikestoplay
basketball.
Ifinditstillnecessary
(forhim)to_________
ifhewantstowin.常接动词不定式作宾语动词有：
agree,afford,appear,ask,attempt,
care,choose,claim,dare,decide,demand,deserve,determine,expect,fail,get,
hate,hesitate,hope,hurry,intend,learn,manage,offer,plan,prepare,pretend,promise,refuse,seem,tend,threaten,
want,wish4不定式作宾补(objectcomplement)Theteachertoldmetocleantheblackboard.
Iexpectyoutogivemesomehelp.listento注意：
feel十宾语＋tobe不定式时，to不可省略。
have，notice，watch不用于被动语态。
see，hear，make，listento,notice，observe变为被动态时，后面须要改接带to不定式；但let变为被动态，而后面要接to不定式时，to可保留也可省略。1.Theysawtheboyfallsuddenlyfrom
thetree.
Theboywasseentofallsuddenly
fromthetree.不定式用在介词but,except,besides
后时,假如这些介词前有行为动词do
各种形式,那么介词后不定式不带to,
相反则带to。5不定式作定语(attribute)1.不定式做定语时常放在被修饰名词或代词之后
(a)Shewasverybusyandhadnotime
tovisitherfriends.
(b)Ladiesandgentlemen,Ihave
somethingimportanttotellyou.不定式作定语与所修饰词之间有
三种关系：2.当名词被thefirst,thelast,the
only等词以及形容词最高级修饰时
eg:Sheisalwaysthefirstto
comeandthelasttoleave.注意比较：4.假如不定式是不及物动词,则后面需适
当介词。
Pleasepassmesomepaperto
write____.Igotupearlyto_____________.Youcamehereto________.eg:Hespokeloudly(soas/inorder)
tobeheard.2.表示原因:
不定式能够用在作表语形容词后作状语,sorry,surprised,happy,glad,eager,angry,foolish,right,wrong,slow,quick,rude,cruel,disappointed等。so+adj./adv.+astodo…
such+adj.+n.+astodo…
adj./adv.+enough+todo
too+adv./adj.+todoTotellthetruth,Iamnothappyatthe
moment.1.Itisgoodtohelpothers.
2.Itismyambitiontomakesurethatthedisabledpeopleinourneighborhoodhaveaccesstoallpublicbuildings.

3.MyambitionistoworkinthecomputerindustrywhenIgrowup.4.Idon’thavetimetositaroundfeelingsorryformyself.