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1、語法專題十：it的用法1.指代事物、動(dòng)物、嬰兒或未知的人。2.指天氣、時(shí)間、距離、自然現(xiàn)象、環(huán)境等。3.代替不定式，作形式主語或形式賓語(常與feel,consider,find,believe,make,take,imagine,think,suppose,regard等連用)。4.代替動(dòng)名詞，作形式主語或形式賓語：Itisnogood/nouse/useless/dangerous+doingIthinkitnogood/nouse/useless/dangerous+doingIthinkitnousecomplainingab
2、outtheirprejudice.5.代替主語從句、賓語從句，作形式主語或形式賓語：Itseems/appears/happens/turnsout/proves+that…Itiscertain/likely/possible/probable+that…Wehavemadeitclearthatshehasnothingtodowiththecase.6.用于強(qiáng)調(diào)句：Itis/was…that/who…Astudentwitnessedthecaraccidentattheturninglastnight.(1)(2)(3)(4
3、)(1)_________________________________________________________.(2)_________________________________________________________.(3)_________________________________________________________.(4)_________________________________________________________.Itisnotuntil+被強(qiáng)調(diào)的部分+that…
4、Ididn’trealizeshewasafamousfilmstaruntilshetookoffherdarkglasses.________________________________________________________________.7.其他重要句型：Itisimportant(necessary,right,strange,natural)that…（should+動(dòng)詞原形）Itissaid(reported,learned…)that…Itissuggested(ordered…)that…（should
5、）+動(dòng)詞原形Itisapity(asham)that…（should）+動(dòng)詞原形Ithappens(seems,looks,appears)that...Itoccurstosb.todo/that…：使某人想起……Itis/hasbeen+一段時(shí)間+since...+過去時(shí)Itwillbe+一段時(shí)間+before...Itlooks(seems)asif…Itisnowonder…：難怪Whenitcomesto…：當(dāng)談到……Itcomesaboutthat…：發(fā)生8.appreciate,love,like,hate,seeto(
6、負(fù)責(zé)，注意)+it+從句鞏固練習(xí)：1.It?took?us?over?an?hour?______?along?the?street. A.walkB.to?walkC.walkingD.walked?2.I?think?it?a?great?honour?______to?visit?your?country. A.to?inviteB.invitingC.having?invitedD.to?be?invited?3.Many?people?now?make?______a?rule?to?buy?cards?for?their?
7、friends?before?Christmas. A.themselvesB.itC.thatD.this?4. ______is?very?clear?to?everyone?that?he's?round?and?tall?like?a?tree. ?A.This?B.WhatC.ThatD.It?5.---It?is?raining?cats?and?dogs.---______?. A.So?it?isB.So?is?itC.Neither?it?isD.Neither?is?it?6.It's?no?use?______o
8、ver?spilt?milk. A.cryB.cryingC.that?you?cryD.for?you?to?cry??7.It?is?important?______?their?offer. A.rejectB.r
