高中英语课件-it的用法

Goodmorning,everyone!1优秀课件，精彩无限！Goodmorning,1优秀课件，精彩无限！①Itisnevertoooldtolearn.

②Itiseasiertofallthantorise.

③Itisnousecryingoverspilt(溢出的)milk.

④Itneverrainsbutitpours(泼水).

Proverbs(谚语)with“It”活到老,学到老。摔倒容易爬起来难。覆水难收。不鸣则已,一鸣惊人。2优秀课件，精彩无限！①Itisnevertoooldtolearn⑤Itiseasytoopenashopbuthardtokeepitalwaysopen.⑥Ittakesthreegenerations(代,辈)tomakeagentleman.

创业容易守业难。十年树木，百年树人。3优秀课件，精彩无限！⑤ItiseasytoopenashopbuGrammar:

Useof“It”4优秀课件，精彩无限！Grammar:

Useof“It”4优秀课件2023/8/14

课文原句再现1.It’sabeautifuldayhereandIamsittingunderthebigtreeattheendofthegarden.2.Yourmothertellsmethatyoustartedsmokingsometimeagoandnowyouarefindingitdifficulttogiveitup.3.Believeme,Iknowhoweasyitistobeginsmokingandhowtoughitistostop.5优秀课件，精彩无限！2023/8/5课文原句再现1.It’sabeauTheuseof“it”1.用作人称代词，代表前面提到的人或事物。Who’sit?_________me.Lookatthepicture._____isapictureofourschool.

It’sIt2.用于代替指示代词this和that。---Isthisjacketyours?---Yes,______is.it6优秀课件，精彩无限！Theuseof“it”1.用作人称代词，代表前面提到Readandanalyzethefollowingsentences.ItisFridaytoday.ItwasverycoldlastMonday.Itisabout8:30now.Itisabout25kmfromLongxiantoBazi.ItliesinthesouthofShaoguancity.Itis40°C!Yougotahighfever!Conclusion:it可以用作非人称代词，表示_____,_____,______,______,______,_____等。DateweathertimedistanceplaceTemperature日期天气时间距离地点温度7优秀课件，精彩无限！Readandanalyzethefollowinge.g:______a.Jimisatthedoor．____wantstoseeyou．b.Someoneisatthedoor．____mustbeJim．A.That,ItB.It,HeC.He,ItD.Who,He一般说来，在指代身份或性别明确的人时，通常要根据情况用代词he／she；若是指代身份或性别不明的人，则用代词itBackC8优秀课件，精彩无限！e.g:______BackC8优秀课件，精彩无限！1.Ican’tfindmypen.I’mgoingtobuy_____.2.Lifetodayisbetterthan______intheolddays.3.Ican’tfindmypen.Imusthavelost_____.

_____用来指代前面提到的可数名词，所指的是事物本身；______则用来替代前面出现过的可数名词，泛指，指一类事物中的一个.______用来代替不可数名词或单数可数名词，特指。onethatit

itonethat9优秀课件，精彩无限！1.Ican’tfindmypen.I’mgoIt作为形式主语当不定式、动名词、从句等用作句子主语时，为保持句子平衡，通常把真正的主语放在句末，而在句首使用形式主语it.10优秀课件，精彩无限！It作为形式主语10优秀课件，精彩无限！2023/8/14eg:Itisillegal（forateenager）todriveacarwithouta

license.Itisnecessaryforyoutogivehimaletter.Conclusion：在句1和句2中it的作用是___________,真正主语是________。

形式主语不定式短语（1）It+be+adj.+（forsb.）todosth.此处adj.通常为描述事件的形容词：easy，difficult，hard，necessary，impossible，likely，right，wrong，important，obvious，useful，useless，dangerous…11优秀课件，精彩无限！2023/8/5eg:形式主语不定式短语（1）It+be2023/8/14（2）It+be+adj+ofsb.todosth此处adj.通常为描述人的形容词：kind，unkind，nice，rude，cruel，considerate，careless，foolish，stupid，wise，crazy.eg:1.It‘skind

of

youtohelpmewiththeproblem.某人做某事某人是…….2It’sfoolishofyoutoquityourjobnow.12优秀课件，精彩无限！2023/8/5（2）It+be+adj+ofsb.2023/8/143.Itisnogoodcryingoverspiltmilk.4.Itisnousecastingpearlsbeforeswine.在句3与句4中，it的作用是_________,真正主语是____________.形式主语动名词短语构成如下结构：Itis+nouse/nogood/notanygood/notanyuse+doingsth.

13优秀课件，精彩无限！2023/8/53.ItisnogoodcryingReadandanalyzethefollowingsentences.Itisobviousthatthewaterwastoblame.Isitpossiblethathewillbecomethechairmanofourcountry?ItisamazingthatatmyageIstilllooklikeastudent!Analysis：it是______,句子真正的主语是——____________形式主语that引导的主语从句Conclusion：Itis+____+that从句adj.14优秀课件，精彩无限！Readandanalyzethefollowing跟踪训练1：Itis+adj.+that从句很明显他已经知道了那个坏消息。姚明篮球比易建联打得好是肯定的。Itisobviousthathehasknownthebadnews.ItiscertainthatYaomingplaysbasketballbetterthanYijianlian.15优秀课件，精彩无限！跟踪训练1：Itis+adj.+that从句很明显他Itissaidthat…据说……

Itisreportedthat…Itissupposedthat…Itishopedthat…Itiswellknownthat…据报导……据推测……希望……众所周知……普遍认为……有人建议……Itissaid

(reported....)

that...Itissuggestedthat…Itisgenerallyconsideredthat…该句型中的it仍是形式主语，真正主语是that引导的主语从句。

16优秀课件，精彩无限！Itissaidthat…据说……据

1.吸烟危害健康，这是事实。

2.碰巧我们在同一间大学。

3.据说日本发生了地震。

4.有人建议他应该立刻戒烟。

Itisafactthatsmokingdoesharmtohealth.Ithappensthatweareinthesamecollege.

__________thereisanearthquakeinJapan.Itissaidthat________________heshouldquitsmokingatonce.Itissuggestedthat17优秀课件，精彩无限！Itisafactthatsmokingd二、it作形式宾语

18优秀课件，精彩无限！二、it作形式宾语

18优秀课件，精彩无限！1.Ifounditveryinterestingtostudy

English.我发现学英语非常有趣。

2.Ithinkitnousearguingwithhim.我认为和他争吵没有用。3.Hemadeitclearthathewasnot

interestedinthissubject.他非常清楚地表示他对那门学科不感兴趣。

小结：it在句中充当_________，真正宾语可以由______以及_________短语充当。还可以由______引导的宾语从句充当。不定式动名词that形式宾语19优秀课件，精彩无限！1.Ifounditveryinteresting

总结：当复合宾语中的宾语是不定式、动名词宾语从句时,往往把真正的宾语放在它的补足语后面，而用it作形式宾语,放在宾语补足语之前。

该句型中的it作形式宾语,常用的动词有think,believe,make,find,consider,feel等。

20优秀课件，精彩无限！总结：当复合宾语中的宾语是不定式、动名词宾语从句时,在一些固定用法中考查常见的固定用法有:makeitforgetitbelieveitornotDon’tmentionitItdoesn’tmatterIt(That)dependsGotitIt’shardtosayIt’suptoyoutodosth.takeit/thingseasy成功，做到，赶上等别提了，忘了它吧信不信由你别提了，表示不用谢没关系视情况而定明白了，懂了很难说由你来决定做某事不要慌，别担心，沉住气21优秀课件，精彩无限！在一些固定用法中考查常见的固定用法有:成功，做到，赶上等2Rewritethesentencesusingan“it”structure.1Givingupsmokingisdifficult.(Itis…)2Mostpeoplebelievesmokingcausescancer.(Itisbelievethat…)3Don’ttrytoquitonastressfulday.(It’snouse…)4youcouldsufferfrombadhealthifyoukeepsmoking.(Itislikelythat…)Itisdifficulttogiveupsmoking.Itisbelievedthatsmokingcausescancer.Itisnousetryingtoquitonsastressfulday.Itislikelythatyoucouldsufferfrombadhealthifyoukeepsmoking.22优秀课件，精彩无限！Rewritethesentencesusingan

Onemidnight,

wasrainingheavily.Marywaslyinginbed.Shecouldn'tfallsleep.Suddenly,sheheardsomeoneknockingatthedoor.“Whois

?”Sheasked.Shelookedattheclockhungonthewall.

wasstrikingtwo.“

isme.”Onemananswered.“

wasimpossibleforhimtoappearhere.”shethought.“John?Is__

you?”“Yeah!isme”themananswered.Sherushedtoopenthedoor.Johnwasjuststandinginfrontofher.HesaidtoMaryexcitedly,“Imissedtheplane.

wassaidthattheplane

Iwouldtakecrasheddownthreehoursago.ItwasinthatplaneIshouldhavegonetoNewYork.Afterthis,Ithink

clearlythatIloveyousomuch

Iwanttobemarryyou.”ititItItItItItitthatthat/whichthatthatFillintheblanks23优秀课件，精彩无限！Onemidnight,wasrTranslation1.是到戒烟的时候了。(quit)

Itistimetoquitsmoking.2.让人惊讶的是在我这个年纪我依然这么健康。(Itisamazingthat...)

ItisamazingthatatmyageIamstillsofit.24优秀课件，精彩无限！Translation1.是到戒烟的时候了。(quit)2ItseemsstrangethatthemanwhohaddelevopedcommunismshouldhavelivedanddiedinLondon.3.一旦你吸烟上了瘾,你会发现要把它戒掉很难。(addict...to;tough)Onceyouarea