Unit4Grammar语法课件-2024-2025年沪教牛津版九年级英语下册

Grammar:it的常见用法UNIT4Naturaldisasters通过本节语法课，你将会：1.掌握it作代词的基本用法2.学会it作形式主语的常见句型3.了解it作形式宾语的基本句型QUESTIONS：What’stheweatherliketoday?What’sthetimenow?Whatisthedatetoday?Whatistheseasonnow?Howfarisyourhomefromschool?Answerthesequestionsbelow.Leadin在你的回答中，it分别指代什么？It是一个特殊的代词，它有两重意义。单词意义用法例子it1.代词2.形式主语/形式宾语指代事物，前面提到过的事表示时间,天气，季节等。出现在固定句型（背诵）Yourdressisbeautiful.Ilikeit.ItisThursday.Itis12o'clock.Itisboringformetostayathome.ItiskindofyoutohelpmewithmyEnglish.Ifindithardtofinishhomework.1.it作代词的基本用法it作代词的用法——Themascot(吉祥物)isalovelyandcutepanda!1.it指代事物或前面提到过的事物:Yeah.Iloveitsomuch!——mascot(吉祥物)2.it指代时间和天气Itisfreezingcold.HowistheweathertodayinSZ?Whattimeisitnow?Itis___?___o'clocknow.YourschoolYourhomeHowfarisit

fromyourschooltoyourhome?Itisonlyfiveminutes’walk.3.it指代距离Howfar?4.it表示情况,或指代this,that:What’sthis?It

isaBingDwenDwen.4.不清楚对方性别时，可用it指代对方Isitaboyoragirl?5.it用于某些句型It'stimeforsth.该做某事了。It'stimetodosth.该做某事的时候了It'stimeforsb.todosth.某人该干某事了。It'sfirst(second)time+that从句某人第几次干某事。(从句谓语用现在完成时)It's+时间段+since从句自从....有一段时间了。it位于句首1.now/forsupper/it/time/is__________________________________________2.autumn/inAustralia/now/it/is__________________________________________3.aboutfivekilometres/it/is/tothepark__________________________________________4.windy/was/it/

yesterday__________________________________________Putthewordsinthecorrectordertomakemeaningfulsentences.Itistimeforsuppernow.ItisautumninAustralianow.Itisaboutfivekilometrestothepark.Itwaswindyyesterday.2.it作形式主语英语中不定式、动名词、主语从句在作主语时主语往往显得很长，使整个句子看上去有点头重脚轻。这样就借助“it”来作形式上的主语，而把真正的主语移到句子后边去，使全句看上去平稳一些。“it”没有实际的意义，但不可以省略。it作形式主语

句型1.It+be+forsb.+todosth.做某事对于某人来说怎么样

形容词必须是表示事情的形容词。如：important,easy,necessary,difficult

上网课对大卫来说很简单。

It’seasyforDavidtostudyonline.句型2.It+be+ofsb.+todosth.某人做某事某人怎么样

形容词必须是能表示人的形容词。如：nice，kind,brave,clever,foolish

你肯帮我,你人太好了。

It’skindofyoutohelpme.=Youarekindtohelpme.it作形式主语的常见句型句型3.It+be+

名词短语+todo做某事是....Itisourdutytoprotecttheenvironment.保护环境是我们的责任。ItisourresponsibilitytoprotecttheEarth.保护地球是我们的责任。Itisimportanttostaycalmwhenthereisafire.Itisdangeroustostartafireintheforest.

【练习】Putthewordsinthecorrectordertomakemeaningfulsentences.Itisagoodideatotakeanumbrella.Itisnicetohaveapicnicinthepark.

【练习】Putthewordsinthecorrectordertomakemeaningfulsentences.Itseemsthatatyphooniscoming.Itappearsthattheflighthasbeencancelled.Itseemsthatsomethingbadhashappenedtoher.句型4.It+seems/appearsthat好像......

Itseemsthathedidn'ttellthetruth他好像没有说出真相。it作形式主语的常见句型

【练习】Putthewordsinthecorrectordertomakemeaningfulsentences.it作形式主语的常见句型句型5.It+be+nouse/nogood+动名词（v-ing）做某事是没用的【翻译】覆水难收._____________________________________句型6.It+be+done(reported/said/told/known…)+that据报道、据说、据获悉........

据说他已经出国学习了。

Itissaidthathehasstudiedabroad.

【填空】大家都知道这座大桥要提前完工。

Itis_____________thatthebridgewillbecompletedaheadoftime.Itisnousecryingoverthespiltmilkknown3.it作形式宾语这种情况通常只用于能带以名词或形容词作宾语补语的动词后面。【常用句型】feel/think/find+________+adj.+todo…我觉得/认为/发现做某事是怎样的【例句】IfounditnoteasytogetalongwellwithJim.我发现和吉姆相处好不简单。【填空】我认为学好英语很重要。Weallthink_________________tolearnEnglishwell.it作形式宾语itit出现在句中，在动词后importantitIt的常见用法用法例句1用作人称代词代替前面提到过的事物Thebookisnotmine.It’sMary’s.2用来代替指示代词 —What’sthis?—It’sadictionary.3指时间、季节、天气、气候It’sspringnow.It’swarm.4指距离Itisalongwaytothehospital.5作形式主语Itisdifficulttofinishtheworkintwodays.Itisapitythatyoudidn’tpassthetest.6作形式宾语IfounditinterestingtostudyEnglish.Sumup!it的常见句型句型例句Itis+adj./n.+(forsb.)todosth. Itisnecessaryforustodosomereadingeveryday.Itisaruletoarriveattheofficeontime.Itis+adj.+ofsb.todosth.Itishonestofyoutotellthetruth.Itisa+n.+that...Itisapitythatyoudidn’tcometotheparty.Itseems/appearsthat...Itseemsthatwehavetofindanotherway.Itissaid/reported/believedthat...ItissaidthatMr.SmithisfromAustralia.Itistimeforsth.Itistimeforsb.todosth.It’stimeforclass.It’stimeforustogohome.Ittakes/willtake/took(sb.)+时间段+todosth.Ittookhimtwohourstofinishthereport.It’sone’sturntodosth.It’syourturntocleantheclassroom.一．选择填空()1.Haveyouseenmywatch?Yes,______isonthedesk.A.It B.this C.it D.that()2.---IheartheWhiteshaveanewbaby.---Oh,is________lovely?A.he B.she C.they D.it()3.---Thereisaknockatthedoor._______?---Itisme.A.Whoishe B.WhoisthatC.Whoisit D.WhoissheCCD一．选择填空()4.Whatistheweatherliketoday?________isveryhot,isn’tit?A.it B.It C.Weather D.It’s()5.Howfaris_______fromheretotherailwaystation?_______abouttenminutes’walk.A.it;It B.it;It’sC.It;ItD.it;Its()6.Isthatapenorapencil?_______isapencil.A.This B.That C.It D.TheyBBC()7.Whatisthedatetoday,the18thorthe19th?Neither.________the20th.A.ItB.That C.Th