it的用法在作文中的應(yīng)用

讓it的用法融入寫作Teachingaims:

1.it作代詞時(shí)的用法；2.it作形式主語和形式賓語；3.強(qiáng)調(diào)句型；4.it固定短語和常用句型;5.it的用法在寫作中的應(yīng)用。熱身一下1.今天天氣寒冷。2.今天是星期三。3.教室到操場(chǎng)有3分鐘的步行路程。4.我有一本字典，它使我聰明。5我沒有字典，你能借我一本嗎？

Itiscoldtoday.It’sWednesdaytoday.Itisathreeminutes’walkfromclassroomtotheplayground.Ihaveadictionary.Itmakesmesmart.Ihaveadictionary,whichmakesmesmart.Ihavenodictionaries.Canyoulendmeone?

想一想，it作代詞分別指代什么？

1.it的基本用法

（1）用作人稱代詞，代替前文提到過的事物。

Thetrainhasarrived.Itarrivedhalfanhourago.

（2）用以代替提示代詞this,that。

—What’sthis?—It’saknife.

—Whosewatchisthat?—It’smine.

（3）起指示代詞的作用，指一個(gè)人或事物。

—Whoisknockingatthedoor?—It’sme.

（4）指環(huán)境情況等。

Itwasverynoisy(quiet)attheverymoment.

（5）指時(shí)間、季節(jié)等。

—Whattimeisit?—It’seighto’clock.

（6）指距離。

Itisalongwaytotheschool.

2.it作形式主語TolearnEnglishwellisimportantforus.Playingcomputergamesalldaylongisawasteoftime.Thatwestudentsshouldbekindtoothersisnecessary.ItisimportantforustolearnEnglishwell.3.

Itisnecessarythatwestudentsshouldbekindtoothers.2.

Itisawasteoftimeplayingcomputergamesalldaylong.TolearnEnglishwellPlayingcomputergamesalldaylongThatwestudentsshouldbekindtoothersItisnouse/nogood/awasteoftimedoingsth.Itisstrange/important/necessarythat…(should)do…翻譯：據(jù)說他讀過這篇小說

It

was

said

that

he

had

read

this

novel.Itis/wassaidthat+從句reportedbelievedthought=

sb/sthis/wassaidtodo/havedone…1.It+be+形容詞+主語從句，如：ItisuncertainwhetherhecancometoJenny’sbirthdaypartyornot.2.It+be+名詞詞組+主語從句，這類名詞有：afact,apity,ashame,anhonour，aquestion等，如：It’sapitythatyoumissedtheexcitingfootballmatch.Itremainsaquestionwhetherhewillcomeornot.3.It+be+過去分詞+主語從句，這類過去分詞有：announced,believed,expected,hoped,decided,reported,said,shown等，如：Itisreportedthat16peoplewerekilledintheearthquake.Itisnotdecidedwhowillgivetheoperationtothepatient.4.It+不及物動(dòng)詞(seem,appear,happen等)+主語從句,這類不及物動(dòng)詞有：appear,happen,seem等，如：Itseemedthathedidn’ttellthetruth.IthappenedthatIwasoutwhenhecalled.5.It+be+形容詞+forsb.）+動(dòng)詞不定式這類句型常用形容詞easy,difficult,hard,important,possible，wise等作表語，有時(shí)候?yàn)榱藦?qiáng)調(diào)不定式動(dòng)作的執(zhí)行者，常在不定式前加forsb，如：It’snecessaryfortheyoungtomastertwoforeignlanguage.Itisunwisetogivethechildrenwhatevertheywant.這類形容詞有：easy,difficult,hard,important,possible，wise6.It+be+形容詞+ofsb.+動(dòng)詞不定式，這類形容詞常是表示心理品質(zhì),性格特征的形容詞，如：kind,nicestupid,clever,foolish,polite,impolite,silly,selfish,considerate等。某人和這些形容詞可以構(gòu)成主系表結(jié)構(gòu)。如：It’sverykindofyoutohelpmewiththework.=Youarekindtohelpme.Itseemedselfishofhimnottosharehisdictionarywithothers.=Heseemedselfishnottosharehisdictionarywithothers.7.It+be+名詞詞組+動(dòng)詞不定式，如：Itisnotagoodhabittostayuptoolate.8.It+be+名詞或形容詞+動(dòng)名詞，這類名詞和形容詞常常是：good,nogood,nouse,awasteof,useless,senseless等，如：It’sawasteoftimetalkingtoheranymore.Itisnousearguingaboutthematterwithhim.3.it作形式賓語(think,feel,make,find,believe,consider…)

+it+adj./n./todo/doing/that…Canyoumakesentences?Wethinkitimportanttohelpothers.

Wefounditimpossibletofinishtheworkinaday.Wethoughtitnogoodworkingwithoutarest.Hemadeitclearthatweshouldn’tbreaktheschoolrules.Eg:Payattention！4.強(qiáng)調(diào)句型Itis/was+被強(qiáng)調(diào)部分＋that/who+其他部分e.g:(1).Isawhimonthestreetlastnight.IItwasIthat/whosawhimonthestreetlastnight.himItwashimthat/whoIsawonthestreetlastnight.onthestreetItwasonthestreetthatIsawhimlastnight.lastnightItwaslastnightthatIsawhimonthestreet.被強(qiáng)調(diào)部分為主語時(shí)，“被強(qiáng)調(diào)部分”用主格；被強(qiáng)調(diào)部分為賓語時(shí)，“被強(qiáng)調(diào)部分”用賓格。(2).Ididn’trecognizehimuntilhetookoffhisdarkglasses.強(qiáng)調(diào)句型ItwasnotuntilhetookhisdarkglassesthatIrecognizedhim.倒裝句NotuntildidhetakeoffhisdarkglassesthatIrecognizedhim.NotuntilhetookoffhisdarkglassesdidIrecognizehim.Payattention！倒裝句一般在主句倒裝5.it固定短語和常用句型Believeitornot.信不信由你。Don’tmentionit.不用謝。Makeit.辦得到，做成功。Takeiteasy.別著急，慢慢來；別過于緊張。It’suptoyou.由你決定

It/That(all)depends.那要看情況而定。Forgetit.算了吧，別在意，沒關(guān)系。Itdoesn’tmatter.沒關(guān)系Whenitcomesto…當(dāng)談到……；當(dāng)涉及……That'sit.對(duì)了，正是。

It

is

（high）

time

+

(that)

主語＋should

do

/

did+其它。（從句中的謂語動(dòng)詞用的是虛擬語氣。）Itisthefirst/second…time+that-從句(必須使用完成時(shí))(這是某人第……次做了某事)Ittakes/tooksb.sometimetodosth.做某事花費(fèi)某人多少時(shí)間It

is

high

time(

that

)we

should

go

/

went

homeItisthefirsttimethatIhavevisitedthiscity.

ItwasthesecondtimethatIhadseenher.Ittakesmeanhourtodomyhomework.

例①Thefactthatshewasforeignmade______difficultforhertogetajobinthatcountry.(2010遼寧卷)A.soB.muchC.thatD.it［解析］考查it的用法。句意：她是外國(guó)人的事實(shí)使得她在那個(gè)國(guó)家很難找到工作。此處要用it作形式賓語，其他詞沒有這種用法。D

例②

Thedoctorthought______wouldbegoodforyoutohaveaholiday.(2010全國(guó)卷Ⅱ)A.thisB.thatC.oneD.it［解析］考查it的用法。it的兩個(gè)重要用法是作形式主語和形式賓語。本題考查形式賓語，it在這里代指后面的真正賓語tohaveaholiday。D

例③

—I'vereadanotherbookthisweek.—Well,maybe______isnothowmuchyoureadbutwhatyoureadthatcounts.(2009浙江卷)A.this B.that C.there D.it

［解析］it引導(dǎo)的強(qiáng)調(diào)句型。還原為：Nothowmuchyoureadbutwhatyoureadcounts.句意為：重要的不是你讀了多少東西，而是你讀了什么。D

例④Itwas______hecamebackfromAfricathatyear______hemetthegirlhewouldliketomarry.(2009江西卷)A.when;thenB.not;untilC.notuntil;thatD.only;why［解析］考查notuntil的強(qiáng)調(diào)句型。C

例⑤Itisoften______thathumanbeingsarenaturallyequippedtospeak.(2009全國(guó)卷Ⅱ)A.saidB.tosayC.sayingD.beingsaid［解析］考查句型Itissaid+that從句……A

When______comestocomputergames,mycousinalwaysgetsexcitedasifhewasanET.A.thatB.thisC.heD.it［解析］whenitcomestosth.是個(gè)固定句型，意思為“當(dāng)談到某事時(shí)”。D用法種類It用法和強(qiáng)調(diào)句型it1、代替前文提到過的事物或?qū)?huì)發(fā)生的事情。2、可代替指示代詞this和that.3、指說話者心目中的人或指做某動(dòng)作的人或與事物有關(guān)的人。4、指代除人以外的一切生物和事物。5、可表示時(shí)間、日期、天氣、溫度和距離等。1、作形式主語：代替由不定式、動(dòng)名詞和從句表示的真主語。2、作形式賓語：代替由不定式、動(dòng)名詞和從句表示的真賓語。3、用在強(qiáng)調(diào)句型中：Itis/was+被強(qiáng)調(diào)部分+who/that…總結(jié)作代詞作引導(dǎo)詞我可不僅僅只在高考單選題中露下臉，嘗試著把小個(gè)子的我應(yīng)用在書面表達(dá)中，定會(huì)給你帶來驚喜喲！相信我，沒錯(cuò)滴

今天是星期三，能在此演講是我的一大榮幸。我的主題是“高二（5）班，我愛你。”我的教室在三樓，到操場(chǎng)很方便，大約三分鐘的步行路程，所以在業(yè)余時(shí)間，我們經(jīng)常去那里鍛煉身體。眾所周知，一直不停地工作是沒好處的。簡(jiǎn)言之，我愛我的教室。而且，我也愛我的同學(xué)。我們認(rèn)為助人為樂是很重要的。我們都很勤奮，是每天早上6：20我們?cè)诮淌易x英語或語文，直到晚上10點(diǎn)我們才離開教室。因?yàn)槲覀兿嘈牛菏桥Χ皇侵橇Q定成功?？傊?，信不信由你，高二（5）班是我校最好的班級(jí)之一，讓我引以為傲。今天是星期三，能在此演講是我的一大榮幸。我的主題是“高二（5）班，我愛你?！?/p>

ItisWednesdaytoday.It’smyhonortomakeaspeechhere.Mytopicis“ILoveYou,Class5,Grade2.”指時(shí)間形式主語Itisnogood/nousedoingsth.指距離Itisconvenientforsbtodo

我的教室在三樓，到操場(chǎng)很方便，大約三分鐘的步行路程，所以在業(yè)余時(shí)間，我們經(jīng)常去那里鍛煉身體。眾所周知，一直不停地工作是沒好處的。簡(jiǎn)言之，我愛我的教室。

Myclassroomisonthethirdfloor.Itisconvenientforustogototheplayground.Itisabouta3-minutewalk,soweoftengotheretotakeexerciseinoursparetime.Asweallknow,itisnogoodworkingwithoutarest.Inaword,Ilikemyclassroom.形式賓語

而且，我也愛我的同學(xué)。我們認(rèn)為助人為樂是很重要的。我們都很勤奮，是每天早上6：20我們?cè)诮淌易x英語或語文，直到晚上10點(diǎn)我們才離開教室。因?yàn)槲覀兿嘈牛菏桥Χ皇锹斆鳑Q定成功。

Besides,Ialsolikemyclassmates.Wethinkitimportanttohelpothers.Wearehard-working.Itisat6:20everymorningthatwereadEnglishorChinese.Anditisnotuntil10:00thatweleavetheclassroom.Becauseweallbelieve：Itisourefforts,notourintelligence,thatdetermineoursuccess!

強(qiáng)調(diào)句中被強(qiáng)調(diào)部分固定結(jié)構(gòu)

總之，信不信由你，高二（5）班是我校最好的班級(jí)之一，讓我引以為傲。Inshort,believeitornot,Class5,Grade2isoneofthebestclassesino