最基本的用法是人稱代詞課件

It的用法It的用法1It的用法It最基本的用法是人稱代詞，主要代表剛提到的東西以避免重復。E.g:Lookatthatcar.It’sgoingmuchtoofast.Eg2:Whereisthecarkey?----Iputitinyourdrawer.

也可以代表抽象的東西。E.g:It’sallmyfault.

也可以指動物或未知性別的嬰兒。E.g:Whatabeautifulbaby---isitaboy?Eg2:Howaboutthebaby?----I’lltakecareofit.

還可代表一個彼此都知其何所指的東西。E.g:Wheredoesithurt?E.g2:Ifhedoesn’tcome,Ican’thelpit.Eg3:Youhavesavedmylife.Ishallneverforgetit.It的用法2非人稱代詞itIt用于代替指示代詞，It可以表示“是誰（在某處或做某事）”e.g:“Who’sthat?”“It’sme.”E.g2:It’syourmotheronthephone.E.g3:“Why,it’syou!”shecried.It還可以用來泛指某件事。E.g:Isn’titawful! E.g2:Itdoesn’tmatter.it有時并不指具體東西，而指天氣、時間、環(huán)境、距離等，稱為非人稱代詞it.E.g:It’sraining.E.g2:It’sTuesdaytoday.E.g3:It’squiethere.Eg4:It’stwomilestothebeach.非人稱代詞it3替代詞one,ones,that,those,it,this,thatone,ones,that,thoseThat替換單數(shù)可數(shù)名詞或不可數(shù)名詞；one只替換單數(shù)的可數(shù)名詞。E.g:Thevaseontheleftismorebeautifulthantheoneontheright.ThecoffeeproducedinBrazilismorefamousthanthatinMexico.That只用于替換表示事物的名詞，而one/ones替換表示人和表示事物的名詞皆可。E.g:Hisyoungersisteristallerthantheelderone.Ineedtheplasticbags,notthepaperones.替代詞one,ones,that,those,it,4ThecomputersinourschoolareconnectedtotheInternetwhilethoseintheirschoolaren’t.Thefootballplayersonourteamseemtobemoreenergeticthanthoseonyourteam.That/those用于替換有定冠詞的名詞；one/ones用于替換有不定冠詞的名詞。E.g:Thestyleofthebuildingissimilartothatofatemple.ACDplayermadeinJapancostsmorethanonemadeinHongKong.Thecomputersinourschoolar5That/those一般不帶前置定語，但必須有后置定語。One/ones都可。當替換詞的后置定語用所有格的of短語或當替換詞被所有格修飾時，不用one/ones而用thatof/thoseof.E.g:Ilikethevasebetterthantheone/thatinanothershop.Thewindowsofyourflatarecleanerthanthoseofmine.Agrandparent’sjobiseasierthanthatofaparent.That/those一般不帶前置定語，但必須有后置定語。O62)it,this和that都可以替代前文已提到的事或情況，細微差別在于it不如其余兩者那么強調(diào)。E.g:Soshedecidedtopaintthedoorpink.Itupsettheneighboursabit.Soshedecidedtopaintthehousepink.Thatreallyupsettheneighbours,asyoucanimagine.當前面提到的事物不止一件時，it通常指最先提到的事物，而This/that是指最后提到的事物。2)it,this和that7E.g:Wekeeptheicecreammachineinthespareroom.Itismainlyusedbythechildren.(指themachine)Wekeeptheicecreammachineinthespareroom.This/Thatismainlyusedbythechildren.(指thespareroom)This可以出現(xiàn)在它所指代的事物之前；而that則指上文所提到的事物。E.g:Listentothis!Wewillhavethreedaysoff.“Apennysavedisapennyearned.”Whosaidthat?E.g:Wekeeptheicecreammac83)It和oneIt用以指特定的前面提到過的事物，即：it和它替換的是同一個事物，it前無修飾語；而one用于替換與前提事物有共同之處但并不完全一樣的事物，因此，one之前或之后一定有修飾語來加以區(qū)別。E.g:IboughtadictionarythreeyearsagoandIamstillusingitnow.IboughtadictionarythreeyearsagobutIamgoingtobuyanewonesoon.3)It和one9形式主語it有下面幾種類型：Be+形容詞+不定式e.g:It’sbettertobeearly.Be+名詞+不定式e.g:Itwashisdutytotakecareoftheorphans.

Be+介詞短語+不定式e.g:It’sbeyondmetosaywhy.

It+及物動詞+賓語+不定式e.g:Itmakesmesicktothinkaboutit.

Be+名詞+動名詞

e.g:It’snogoodstandinghereinthecold.

Be+形容詞+動名詞

eg:It’shelplesstryingtoconvinceher.

其他結(jié)構(gòu)+動名詞

e.g:Itdoesn’tmatterwaitingafewmoredays.

形式主語it10用于由that引導的主語從句，有下面幾種類型：it+be+形容詞+that從句：e.g:Itisnaturalthattheyshouldhavedifferentviews. it+be+名詞+that從句:e.g:It’sashamethatyou’resick.it+動詞（+賓語）+that從句

e.g:Ithappenedthatshewasn’tinthatday.Eg2:Itneveroccurredtomethatperhapsshewaslying.It+動詞的被動語態(tài)(said/believed/thought/expected/reported/known+that從句

e.g:It’ssaidthattherehasbeenanearthquakeinIndia.用于由that引導的主語從句，有下面幾種類型：11形式賓語it:it可以代表不定式：e.g:Shefounditdifficulttoconvincehim.Eg2:Hefeltithisdutytotakecareofthem.It代表that引導的從句：e.g:Itookitforgranted(that)youwouldbecoming.It間或代表連接代（副）詞引導的從句：E.g:Hehasn’tmadeitclearwhenheiscomingback.Eg2:Theyhaven’tmadeitknownwherethemeetingistotakeplace.形式賓語it:12用it起始的句型歸納：1）it+be+形容詞+從句： e.g:Itisnotcleartomewhyhebehavedlikethat.2）it+be+名詞+從句: e.g:It’sapuzzlehowlifebegan.3）it+動詞（+賓語）+從句e.g:Itdoesn’tmattermuchwherewelive.eg2:Itmakesnodifferencewhetherwegobytrainorbyboat.4）it+動詞的被動語態(tài)+從句e.g:Itisnotdecidedwhowilleditit.用it起始的句型歸納：135）it+動詞be+that從句e.g:No,itcouldn’tbethattheywereinterestedinhim.6）It+be+一點時間+when…E.g:ItwasChristmasEvewhenIgotthenewsofhisbeingkilledinacarcrash.7）It+be+一段時間+since…E.g:Itis/hasbeenthreeweeksinceIlastheardfromhim.8）Itistimetodo/that…(謂語用過去時態(tài)）E.g:Itistimeforustogivethehouseathoroughcleaning.Itistimethatwegavethehouseathoroughcleaning.5）it+動詞be+that從句149）It+be+thefirst/secondtimethat…(謂語動詞用完成時態(tài)）E.g:ItisthefirsttimeinhistorythattwoNobelPrizeshavebeenawardedtothesameperson.10）Ittakessb.Timetodo…E.g:IttookMary20minutestochooseasuitabledressfortheparty.9）It+be+thefirst/secondt15There起始的句型歸納：1）therelive/stand/lie/exist…E.g:Therestandsabigtreeattheentrancetothetemple.Therelayaditchtwometreswideahead.2)Therecome/go/appear/occur/follow…用于描述某事的發(fā)生或某個動作的開始。E.g:Therewillfollowabreakof10minutesandthenwewillgoonwiththelecture.There起始的句型歸納：163)Therebeing…（獨立主格結(jié)構(gòu)）E.g:Therebeingnothingleftinthefridge,wehadtodosomeshoppingfirst.4)…theretobe結(jié)構(gòu)常見于動詞intend,mean,consider,hate,want等詞后。E.g:Noonewouldexpecttheretobeawarinhiscountry.Idon’twanttheretobeanotheraccidentlikethis.

3)Therebeing…（獨立主格結(jié)構(gòu)）175)Thereisnoneedtodo…E.g:Thereisnoneedtowaitforthebussincewecantakeyouinourcar.若名詞是use,good,harm,sense,point時Thereisno+名詞+indoing…E.g:Thereisnopointinarguingwithhim.Hewon’tlistentoanyone.6)Thereappear/seem/islikely/iscertaintobe…E.g:Thereseemstobesomethingwrongwiththeelectricfan.Thereislikelytobemorepeopleatthespeechcontestthanexpected.5)Thereisnoneedtodo…18It用于強調(diào)句結(jié)構(gòu)：It+動詞be+強調(diào)部分+who(whom)/that+其他部分it可以用來對句子的某一成分加以強調(diào)。

Eg:NancysawyoursisterinTokyolastweek.

ItwasNancy

whosawyoursisterinTokyolastweek.Itwasyoursister

whomNancysawinTokyolastweek.Itwas

inTokyo

thatNancysawyoursisterlastweek.Itwas

lastweek

thatNancysawyoursisterinTokyo.It用于強調(diào)句19有些否定句也可以改成這種強調(diào)結(jié)構(gòu)：Ididn’thearfromheruntillastsummer.Itwasn’tuntillastsummerthatIheardfromher.Ididn’tdoallthisformyself.

Itwasn’tformyselfthatIdidallthis.問句也可變成這種結(jié)構(gòu)：Whocalledhim“comrade”?Whowasitthatcalledhim“comrade”?Howdidyouforgettolockthedoor?Howwasitthatyouforgottolockthedoor?有些否定句也可以改成這種強調(diào)結(jié)構(gòu)：20Ex:把下列句子改為強調(diào)句：1.Tombrokethewindow

last

night.2.Theywantmoney.3.Petersawhisfriend

inthepark

yesterday.4.Ididn’thaveanopportunityofseeingheragainfor

severalyears.5.WhydoeseveryonethinkI’mnarrow-minded?6.Ididn’treceivemyletteruntil

yesterday?7.DidDickcallthemeetinglastweek?8.Didithappenin1980?Ex:把下列句子改為強調(diào)句：21It的用法It的用法22It的用法It最基本的用法是人稱代詞，主要代表剛提到的東西以避免重復。E.g:Lookatthatcar.It’sgoingmuchtoofast.Eg2:Whereisthecarkey?----Iputitinyourdrawer.

也可以代表抽象的東西。E.g:It’sallmyfault.

也可以指動物或未知性別的嬰兒。E.g:Whatabeautifulbaby---isitaboy?Eg2:Howaboutthebaby?----I’lltakecareofit.

還可代表一個彼此都知其何所指的東西。E.g:Wheredoesithurt?E.g2:Ifhedoesn’tcome,Ican’thelpit.Eg3:Youhavesavedmylife.Ishallneverforgetit.It的用法23非人稱代詞itIt用于代替指示代詞，It可以表示“是誰（在某處或做某事）”e.g:“Who’sthat?”“It’sme.”E.g2:It’syourmotheronthephone.E.g3:“Why,it’syou!”shecried.It還可以用來泛指某件事。E.g:Isn’titawful! E.g2:Itdoesn’tmatter.it有時并不指具體東西，而指天氣、時間、環(huán)境、距離等，稱為非人稱代詞it.E.g:It’sraining.E.g2:It’sTuesdaytoday.E.g3:It’squiethere.Eg4:It’stwomilestothebeach.非人稱代詞it24替代詞one,ones,that,those,it,this,thatone,ones,that,thoseThat替換單數(shù)可數(shù)名詞或不可數(shù)名詞；one只替換單數(shù)的可數(shù)名詞。E.g:Thevaseontheleftismorebeautifulthantheoneontheright.ThecoffeeproducedinBrazilismorefamousthanthatinMexico.That只用于替換表示事物的名詞，而one/ones替換表示人和表示事物的名詞皆可。E.g:Hisyoungersisteristallerthantheelderone.Ineedtheplasticbags,notthepaperones.替代詞one,ones,that,those,it,25ThecomputersinourschoolareconnectedtotheInternetwhilethoseintheirschoolaren’t.Thefootballplayersonourteamseemtobemoreenergeticthanthoseonyourteam.That/those用于替換有定冠詞的名詞；one/ones用于替換有不定冠詞的名詞。E.g:Thestyleofthebuildingissimilartothatofatemple.ACDplayermadeinJapancostsmorethanonemadeinHongKong.Thecomputersinourschoolar26That/those一般不帶前置定語，但必須有后置定語。One/ones都可。當替換詞的后置定語用所有格的of短語或當替換詞被所有格修飾時，不用one/ones而用thatof/thoseof.E.g:Ilikethevasebetterthantheone/thatinanothershop.Thewindowsofyourflatarecleanerthanthoseofmine.Agrandparent’sjobiseasierthanthatofaparent.That/those一般不帶前置定語，但必須有后置定語。O272)it,this和that都可以替代前文已提到的事或情況，細微差別在于it不如其余兩者那么強調(diào)。E.g:Soshedecidedtopaintthedoorpink.Itupsettheneighboursabit.Soshedecidedtopaintthehousepink.Thatreallyupsettheneighbours,asyoucanimagine.當前面提到的事物不止一件時，it通常指最先提到的事物，而This/that是指最后提到的事物。2)it,this和that28E.g:Wekeeptheicecreammachineinthespareroom.Itismainlyusedbythechildren.(指themachine)Wekeeptheicecreammachineinthespareroom.This/Thatismainlyusedbythechildren.(指thespareroom)This可以出現(xiàn)在它所指代的事物之前；而that則指上文所提到的事物。E.g:Listentothis!Wewillhavethreedaysoff.“Apennysavedisapennyearned.”Whosaidthat?E.g:Wekeeptheicecreammac293)It和oneIt用以指特定的前面提到過的事物，即：it和它替換的是同一個事物，it前無修飾語；而one用于替換與前提事物有共同之處但并不完全一樣的事物，因此，one之前或之后一定有修飾語來加以區(qū)別。E.g:IboughtadictionarythreeyearsagoandIamstillusingitnow.IboughtadictionarythreeyearsagobutIamgoingtobuyanewonesoon.3)It和one30形式主語it有下面幾種類型：Be+形容詞+不定式e.g:It’sbettertobeearly.Be+名詞+不定式e.g:Itwashisdutytotakecareoftheorphans.

Be+介詞短語+不定式e.g:It’sbeyondmetosaywhy.

It+及物動詞+賓語+不定式e.g:Itmakesmesicktothinkaboutit.

Be+名詞+動名詞

e.g:It’snogoodstandinghereinthecold.

Be+形容詞+動名詞

eg:It’shelplesstryingtoconvinceher.

其他結(jié)構(gòu)+動名詞

e.g:Itdoesn’tmatterwaitingafewmoredays.

形式主語it31用于由that引導的主語從句，有下面幾種類型：it+be+形容詞+that從句：e.g:Itisnaturalthattheyshouldhavedifferentviews. it+be+名詞+that從句:e.g:It’sashamethatyou’resick.it+動詞（+賓語）+that從句

e.g:Ithappenedthatshewasn’tinthatday.Eg2:Itneveroccurredtomethatperhapsshewaslying.It+動詞的被動語態(tài)(said/believed/thought/expected/reported/known+that從句

e.g:It’ssaidthattherehasbeenanearthquakeinIndia.用于由that引導的主語從句，有下面幾種類型：32形式賓語it:it可以代表不定式：e.g:Shefounditdifficulttoconvincehim.Eg2:Hefeltithisdutytotakecareofthem.It代表that引導的從句：e.g:Itookitforgranted(that)youwouldbecoming.It間或代表連接代（副）詞引導的從句：E.g:Hehasn’tmadeitclearwhenheiscomingback.Eg2:Theyhaven’tmadeitknownwherethemeetingistotakeplace.形式賓語it:33用it起始的句型歸納：1）it+be+形容詞+從句： e.g:Itisnotcleartomewhyhebehavedlikethat.2）it+be+名詞+從句: e.g:It’sapuzzlehowlifebegan.3）it+動詞（+賓語）+從句e.g:Itdoesn’tmattermuchwherewelive.eg2:Itmakesnodifferencewhetherwegobytrainorbyboat.4）it+動詞的被動語態(tài)+從句e.g:Itisnotdecidedwhowilleditit.用it起始的句型歸納：345）it+動詞be+that從句e.g:No,itcouldn’tbethattheywereinterestedinhim.6）It+be+一點時間+when…E.g:ItwasChristmasEvewhenIgotthenewsofhisbeingkilledinacarcrash.7）It+be+一段時間+since…E.g:Itis/hasbeenthreeweeksinceIlastheardfromhim.8）Itistimetodo/that…(謂語用過去時態(tài)）E.g:Itistimeforustogivethehouseathoroughcleaning.Itistimethatwegavethehouseathoroughcleaning.5）it+動詞be+that從句359）It+be+thefirst/secondtimethat…(謂語動詞用完成時態(tài)）E.g:ItisthefirsttimeinhistorythattwoNobelPrizeshavebeenawardedtothesameperson.10）Ittakessb.Timetodo…E.g:IttookMary20minutestochooseasuitabledressfortheparty.9）It+be+thefirst/secondt36There起始的句型歸納：1）therelive/stand/lie/exist…E.g:Therestandsabigtreeattheentrancetothetemple.Therelayaditchtwometreswideahead.2)Therecome/go/appear/occur/follow…用于描述某事的發(fā)生或某個動作的開始。E.g:Therewillfollowabreakof10minutesandthenwewillgoonwiththelecture.There起始的句型歸納：373)Therebeing…（獨立主格結(jié)構(gòu)）E.g:Therebeingnothingleftinthefridge,wehadtodosomeshoppingfirst.4)…theretobe結(jié)構(gòu)常見于動詞intend,mean,consider,hate,want等詞后。E.g:Noonewouldexpecttheretobeawarinhiscountry.Idon’twanttheretobeanotheraccidentlikethis.

3)Therebeing…（獨立主格結(jié)構(gòu)）385)Thereisnoneedtodo…E.g:Thereisnoneedtowaitforthebussincewe