关于It的六种基本句型和例句
关于It的六种基本句型和例句
关于It的六种基本句型和例句
关于It的六种基本句型和例句
1.陈述句的强调句,强调陈述句中的某个成分.
为了强调句子中的有些成分,要用强调结构Itis(was)+被强调部分+that(who)+其他部分.被强调的成分可以是主语、宾语、状语,但不能是定语表语和谓语.这种类型的强调句主要注意一下几个方面:
1)It在这一结构中作主句的主语,所以即使被强调部分是复数名词,也要用is或was.
e.g.TomandMarkoftencometoseeme.
ItisTomandMarkWhooftencometoseeme.(强调主语)
2)如果被强调部分是时间、地点、方式或原因也不用when,where,how,why,而用that;强调人时可用who,也可用that.
e.g.(1)Theysetoutthedaybeforeyesterday.
Itwasthedaybeforeyesterdaythattheysetout(强调时间状语)
(2)Weputoffthesportsmeetbecauseoftherain.
Itwasbecauseoftherainthatweputoffthesportsmeet(强调原因状语)
(3)Itwasbecauseshewasillthattheydidn‘taskhertodothejob.(强调原因状语从句)
3)被强调部分如果是原句的主语,who或that后面谓语的人称和数应和原句的主语一致.
—Personally,Ithinkitisthesalesmanager,ratherthanthesalesgirls,____toblame.
—Iagreewithyou.
A.isB.thatisC.areD.whoare
2.一般疑问句的强调句,只需把is(was)提前.
e.g.(1)Wasitin1939thattheSecondWorldWarbrokeout?
(2)IsitProfessorWangwhoteachesyouEnglish?
(3)—Wasittwomonthsago_____youluckilygotanopportunitytospendyourholidayinCanada?
—_____.Johnwastheluckydog……
A.when;NotIB.when;NotonlyC.that;NotallD.that;Notme
3.特殊疑问句的强调句,强调特殊疑问句中的疑问词.
e.g.(1)Wheredidyoufindthewallet?
Wherewasitthatyoufoundthewallet
(2)Whenshallwemeet?
Whenisitthatweshallmeet?
从上面的例子中我们可以看出,特殊疑问句的强调句是由“特殊疑问词+was(is)itthat+陈述句”构成的.但是当含有特殊疑问词的强调句型用在宾语从句中的时候,上述句型应改为‘特殊疑问词+itwas(is)that+陈述句“,即采用陈述句语序.
e.g.(1)—wherewasit____theroadaccidenthappenedyesterday?
—Infrontofthemarket.
A.whenB.thatC.whichD.how
(2)Ireallydon‘tknow_____youreturnedthebooktome.
A.whenitwasthatB.whenwasitC.whenwasitthatD.whenitwas
4.有时可用Itmightbe……that……,和Itmusthavebeen……that……的句型表示强调.
e.g.(1)Itmightbehisfatherthatyouarelookingfor.
(2)Itmusthavebeenhisbrotherthatyoumet.
5.强调not……until结构中由until引导的短语(或从句)表示时间状语的句型是:Itis(was)notuntil……+that……+其他部分.
e.g.1)Hedidn‘tmarryuntilforty.
Itwasnotuntilfortythathemarried.
(2)Mr.Yangdidnotleavethelabuntilhegoteverythingreadyfortheexperiment.
ItwasnotuntilhehadgoteverythingreadyfortheexperimentthatMr.Yangleftthelab.
(3)_____herealizeditwastoolatetoreturnhome.
A.NotuntildarkB.ItwasuntildarkthatC.ItwasnotuntildarkthatD.Itwasdarkthat注意:如果not……until放在句首时就要用部分倒装句式,它的语序和在not……until结构中由until引导的短语(或从句)表示时间状语的句型中的语序不同.
6.强调词it与先行词it的区别.
强调词it与先行词it的区别可以通过恢复原句的方式来判断,即如果把itis……that……去掉后剩下的成分仍然能组成一个完整的句子,这就是强调句型,否则就不是.
Itistherethataccidentsoftenhappen.
→Accidentsoftenhappenthere.
以上就是强调句型,被强调成分是状语,把itis……that……去掉,还原成后来的非强调句.
Itisclearthatnotallboyslikefootball.
上面的句子如果去掉itis……that……后就成了Clearnotalltheboyslikefootball.很显然这不是一个完整的句子,因此不是强调句型,而是由it作先行词引导的一个主语从句.
7.其他的一些强调句型:
Itis/was+时间段+since从句,It+时间段+before从句,Itis/was+时间点+when从句.
1)Itis/was+时间+since…,从……已多久了.在这个句型中