-2024屆高三英語二輪復(fù)習“it”的用法總結(jié) 課件

GrammarinUnit3---”it”考點一it用作代詞1.用作人稱代詞（1）Myfriendofferedmeabeautifulgift,andIlikeit

verymuch.（2）Whatwillyoucallitifit’saboy?（3）---Whoiswaitingforyouatthebusstop?---Ihavenoidea.Itmaybemybrother.指前面的名詞或上文提到的事指嬰兒(性別不明)未出場的身份不明確的人2.用作非人稱代詞1.

Itgetsdarkveryearlyinthewinter.2.Ilovespring---It’sawonderfultimeoftheyear.4.It’slessthan100kilometresfromheretoJinan3.It

hassnowedmuchthisyear.指季節(jié)指距離指天氣指時間5.Itistoobad.Thereismuchworkformetodotoday.指一般的，籠統(tǒng)的情況3.指代this,that或不定代詞something,nonthing.Wheneversheseessomethingthatshelikes,shegoesandbuys

it.it作形式主語.

It可以用作先行詞作為句子的主語,而把句子的真正語移到后面去,可以移到后面的主語是：不定式、動名詞、從句不定式:e.g.知道自己的局限性是很重要的。Itisimportanttoknowyourlimitations.2)動名詞:e.g.為他工作很有意思。Itisfunworkingforhim.3)主語從句:e.g.他居然還活著,真是個奇跡。Itisawonderthatheisstillalive. 考點二：用作形式主語It作形式主語時的幾個常見句型:

(1).Itbe+adj.+(of/forsb.)+todosth.of

時此處adj.通常為描述人的屬性的形容詞:kind,unkind，nice,rude，cruel，considerate，thoughtful，careful，careless等。

e.g.It'skindofyoutohelpmewiththeproblem.for時此處adj.通常為描述事件的形容詞：easy，difficult，hard，necessary，unnecessary，possible，impossible，likely，unlikely，right，legal，illegal，polite，impolite，clear，obvious，dangerous…e.g.Itisillegal（forateenager）todriveacarwithoutalicense.(2).Itbe+adj.+doingsth.(常用的adj.有useless,worthwhile)

e.g.Itisuselessaskinghimforhelp.(3).Itbe+n.+doingsth.(常用的名詞有g(shù)ood,use,worth)e.g.It’snousecryingoverthespiltmilk.(4).Itbe+adj.+that...(常用的形容詞有necessary,important,vital,strange,natural,clear,possible,obvious,true,certain等)e.g.Itisimportantthathe(should)bethereontime.(5).Itbe+done+that...(常用的過去分詞有said,announced,believed,reported,known,learned,hoped,claimed,estimated等)e.g.Itwassaidthattheearthquakehadcausedalotofdamage.(6).Itbe+n.+that...(常用的n.有pity,honour,shame,wonder,fact等)

e.g.Itisapitythatyoucan'tcome.

it作形式賓語當復(fù)合賓語中的賓語是不定式、動名詞、賓語從句時,往往把賓語放在它的補足語后面,而用it作形式賓語,放在賓語補足語之前。

Sb+make/think/believe/find/consider/feel+it+adj./n.+todo/doing/that….Wethinkitimportant

tolearnaforeignlanguage.Heconsidersithisdutytohelpthoseatrisk.Ithinkitnouse

arguingwithhim.Theschoolhasmadeitclearoverandoveragainthatsmokingisbannedintheschool.

考點三：用作形式賓語考點四：it的固定句型(1).Itremainstobedone+從句...有待于e.g.Itremainstobeseenwhethermakingatripoftendoesgoodtotheoldcouple'shealth.(2).It+hits/strikes/occurstosb+從句某人突然想起...e.g.Itoccuredtomethatweshouldstartoffatonce.(3).appreciate/hate/love/like/dislike后面由if或when引導(dǎo)從句時，中間用it,構(gòu)成appreciate/hate/love/like/dislike+it+if/when從句e.g.Hewillappreciateitiftheyinvitehim.(4).動詞短語+it+that從句。動詞短語有rely/dependon/upon,seeto(負責，照料)，answerfor(負擔，擔保)，askfor(請求)。e.g.Youcandependonitthatsheisalwaysconcernedaboutherowninterests.(5).動詞+it+介詞短語+that從句takeitforgrantedthat...認為...理所應(yīng)當oweittosbthat...把...歸功于某人leaveittosbthat...把...留給某人keepitinmindthat...把...記在心里e.g.Keepitinmindthatyouhavetobehomeby11o'clock.IMaryinthestreetyesterdayItwasIthat/who

metMary

inthestreetyesterday.ItwasMarythatImet

inthestreetyesterday.ItwasinthestreetthatImetMaryyesterday.ItwasyesterdaythatImetMary

inthestreet.it用于強調(diào)句基本結(jié)構(gòu)：Itbe+被強調(diào)部分+that/who+句子其他成分ImetMary

inthestreet

yesterday.1.It無意義，不可換成this/that.2.be只用單數(shù)is/was3.被強調(diào)的部分不能為謂語動詞.4.強調(diào)的部分是人也可用who其它一律用that.強調(diào)句的一般疑問句：Is/Wasit+被強調(diào)部分+that/who+其他成分？e.g.Isitinthedininghallthattheywillholdaparty?IsitprofessorLiwhowillcometoourschooltogiveusaspeech?強調(diào)句的特殊疑問句：特殊疑問詞+is/wasit+that/who+其他成分？e.g.Howwasitthattheygottothetopofthathighmountain?※：當強調(diào)句的特殊疑問詞作賓語時，語序為特殊疑問詞+itis/was+that/who+其他成分.e.g.Ireallydon'tknowwhereitwasthatIputmywalletafterIpaidthebill.強調(diào)句的特殊結(jié)構(gòu)：當被強調(diào)的時not...until句型時，應(yīng)將not與until部分一起進行強調(diào)，構(gòu)成“Itis/wasnotuntil...that...”結(jié)構(gòu)。由于not已經(jīng)移除，that后應(yīng)用肯定句式。如：1.Hedidn'tcomebackuntilthenextyear.

Itwasnotuntilthenextyearthathecameback.2.Theywillnotleavehereuntiltheyfinishtheproject.

Itisnotuntiltheyfinishtheprojectthattheywillleavehere.1.Itistime

(abouttime/hightime)

thatsb._______

did/shoulddo2.Itisthefirst

(second...)

timethat____________was3.It_____________+時間段....since…did自…以來已經(jīng)過了