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is_663608
暂无简介
it的用法是高考中常见的考查热点之一。下面我们就对it的用法作简要归纳和分析。
一、它,指提到过的或正在谈论的动物或事物,(usedtorefertoananimalorathingthathasalreadybeenmentionedorthatisbeingtalkedaboutnow)。例如:
Whatcolorisyourbike?Itisgreen.
What'sthis?It'sabook.
二、指婴儿,尤指性别不详者。(usedtorefertoababy,especiallyonewhosesexisnotknown)。例如:
Whatabeautifulbaby!Isitaboy?
Whoisknockingthedoor?IthinkitisJohn.
三、指已知或正在发生的事实或情况。(usedtorefertoafactorsituationthatisalreadyknownorhappening)例如:
Whenthefactorycloses,itwillmean600peoplelosingtheirjobs.
四、it可以代替Ved/Ving/从句用作形式主语或形式宾语,而真正的主语或宾语在句末。(usedinthepositionofthesubjectorobjectofaverbwhentherealsubjectorobjectisattheendofthesentence)。例如:
Itisimpossibletofinishtheworkbytheendof2008.
Itisnousearguingwithhim.
ThechairmanthoughtitnecessarytoinviteProfessorSmithtospeakatthemeeting.(2005全国卷1)
Itisreportedthattalksbetweenthetwocountriesaremakingprogress.
五、谈论时间、日期、距离、天气等时用作主语(usedinthepositionofthesubjectofaverbwhenyouaretalkingabouttime,thedate,distance,theweather,etc.)。例如:
-DidJackcomebackearlylastnight?
-Itwasnotyeteighto'clockwhenhearrivedhome.(2005福建卷)
Itisverycoldoutside.You'dbetterputonyourcoat.
Itis100kilometersfromourschooltothestation.
六、谈论情况时用(usedwhenyouaretalkingaboutasituation)。例如:
Ifitisconvenient,Iwillcometomorrow.
Ilikeithere.
七、用于强调句型中。
强调句的结构为Itis/was+被强调部分+who/that+句子其余部分。此句型用于强调句子除谓语动词以外的其他部分如:主语、宾语、状语等。当被强调的是人时用who/that,当被强调的不是人时,用that。例如:
ItisIwho/thatamsinging.
Idon'tmindhercriticizingme,butitishowshedoesitthatIobjectto.(2007江西卷)
Itwasnotuntilmidnightthattheyreachedthecampsite.(2008重庆卷)
【注意】
1.注意强调句的疑问句式及其在名词性从句中的语序。
强调句的疑问句式为:特殊疑问词+is/was+that+句子其他部分?它在名词性从句中语序为陈述语序。例如:
Ijustwonderwhatitisthatmakeshimsoexcited.(2006山东卷)
2.注意not...until...在强调句中的用法。
其句型为Itis/wasnotuntil...that...。that后面的句子主谓不使用倒装。在这一点上要与notuntil...位于句首,主句使用部分倒装,而从句不倒装区分开。
ItwasnotuntilshegothomethatJenniferrealizedshehadlostherkeys.(2006全国卷2)
此句也可表达为NotuntilshegothomedidJenniferrealizeshehadlostherkeys.
3.注意强调句与定于从句的或状语从句的区别。
①Itwasat8:00thathecamebackhome.
Itwas8:00whenhecamebackhome.
②Itwasinthefactorythathisfatherworkedthreeyearsago.
Itwasthefactorywherehisfatherworkedthreeyearsago.
4.辨析几个it句型。
①Itwas+一段时间+before从句(从句用一般过去时)意为:过了……时间就……
Itwillbe+一段时间+before从句(从句用一般现在时)意为:过了……时间就会……
例如:ItwasnotlongbeforeIjoinedthearmy.
Itwillbetwomonthsbeforethebuildingiscompleted.
②Itis+一段时间+since从句(从句用一般过去时)
Itwas+一段时间+since从句(从句用过去完成时)
意为:自从……有……时间了。例如:
Thatwasreallyasplendidevening.It'syearssinceIenjoyedmyselfsomuch.(2005安徽卷)
③Itishigh/abouttimethat从句(从句用一般过去时表示虚拟)意为:该做……了。到做……的时间了。
例如:It'stimethatwewenttoschool.
④It/This/Thatis+thefirst(second,third...)timethat.从句(从句用现在完成时)
It/This/Thatwas+thefirst(second,third...)timethat.从句(从句用过去完成时)
意为:这是某人第一(二、三……)次做某事。
例如:Itisthefirsttimethatwehavemeteachother.
⑤Itis/was+时间点+when从句.(见五、中的第1个例子)
⑥Itis/was+n./adj./Ved+that从句(见四、中的第4个例子)
八、用于习惯用语中。
Forgetit.没关系,不必在意。
Makeit.获得成功。
Takeiteasy.别急,沉住气。
It'smypleasure.不客气。不用谢。
That'sit.这是要点(或重要原因),正是这样。
【巩固练习】
1.Itwasnotuntilmidnight__theyreachedthecampsite.(2008重庆卷)
A.thatB.whenC.whileD.as
2.-HowmuchdoIoweyouforlunch?
-___.It'snothing.(2008天津卷)
A.You'rewelcome.B.Forgetit.
C.Withpleasure.D.That'sright.
3.___isourbeliefthatimprovementsinhealthcarewillleadtoastronger,moreprosperouseconomy.(2006浙江卷)
A.AsB.ThatC.ThisD.It
4.-Haveyouheardthelatestnews?
-No,what_____?(2007全国卷1)
A.isitB.isthereC.aretheyD.arethose
5.-Thereisstillacopyofbookinthelibrary.Willyougoandborrow__?
-No,I'dratherbuy____inthebookstore.(2007陕西卷)
A.it;oneB.one;oneC.one;itD.it;it
6.___worriesmethewayhekeepschanginghismind.(2007山东卷)
A.ThisB.ThatC.WhatD.It
7.AsthebusiestwomaninNorton,shemade___herdutytolookafteralltheotherpeople'saffairsinthattown.(2006湖南卷)
A.thisB.thatC.oneD.it
8.I'dappreciate___ifyouwouldliketoteachmehowtousethecomputer.(2006山东卷)
A.thatB.itC.thisD.you
9.Itwassometime___werealizedthetruth.(2005山东卷)
A.whenB.untilC.sinceD.before
10.Theroadconditionsthereturnedouttobeverygood,___wasmorethanwecouldexpect.(2008全国卷2)
A.itB.whatC.whichD.that
:1.A2.B3.D4.A5.A6.D7.D8.B9.D10.C
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