語(yǔ)法單元Unit4Weatherandourlives

教師______學(xué)校______it的用法1.人稱代詞it用法2.非人稱代詞it3.常用it固定句型4.總結(jié)與練習(xí)it可用來(lái)指代前文提到的人,物或事情,也可以用來(lái)指時(shí)間,金錢,距離,天氣等自然現(xiàn)象一、it

做代詞:1.it作人稱代詞⑴.指前文提到的事物，以避免重復(fù):Shantouisabeautifulcity,isn’tit?⑵.指不明性別的嬰兒或不明身份的人:Look，that’sababy!Itlookslikeadoll.Isthisyourwallet?No,itisn’t.⑶.代替指示代詞this/thatThereisacatonthedesk.

Itlookslikeahat.Whoisknockingatthedoor?ItmustbeBill.指代時(shí)間、天氣、距離、溫度等。a)Itis5o'clock.(指時(shí)間)b)Itisraining.(指天氣)Itiscold.天氣冷。c)Itis10milestothecity.(指距離)指代時(shí)間、天氣、距離、溫度等2.it作非人稱代詞二、it

做引導(dǎo)詞·Ifindithardtolearngymnastics.

我發(fā)現(xiàn)學(xué)體操很難。·Ifeelitnecessarytolearneveryday.

我覺得每天學(xué)習(xí)很有必要。·Imadeitaruletokeepadiaryeveryday.

我定下一個(gè)規(guī)矩,每天寫日記。·Ibelieveitnousereadingwithoutunderstanding.

我認(rèn)為只讀書不理解沒用。2.作形式賓語(yǔ)結(jié)構(gòu)：主語(yǔ)+動(dòng)詞+(形式賓語(yǔ))it+(賓語(yǔ)補(bǔ)足語(yǔ))形容詞或名詞+(真正賓語(yǔ))不定式或動(dòng)名詞或賓語(yǔ)從句。Itisimportanttolearnaforeignlanguage.學(xué)習(xí)一門外語(yǔ)是很重要的。重要句型：ittakessb.sometimetodosth.完成某事需要某人花費(fèi)多少時(shí)間Ittakesmeanhourtofinishmyhomeworkeveryday.我每天完成作業(yè)需要一個(gè)小時(shí)。2.形式主語(yǔ)（真正的主語(yǔ)是后面的不定式）三、it固定句型1.Itis+名詞+todosth.Itismypleasuretohelpyou.Itisagoodideatodoexerciseeverymorning.抽象名詞2.Itis+形容詞+todosth.Itishardtofinishtheworkontime.Itiseasytoworkoutthisproblem.Itis+形容詞+for/ofsb.+todosth.形容詞修飾“事”用for形容詞修飾“人”用ofitiskindofyoutohelpme.itisimportantforyoutoworkouttheproblem.對(duì)于某人來(lái)說(shuō)3.Itistime(forsb.)forsth./todosth.Itistimeforclass.Itistimeforyoutogiveatalk.4.Ittakessb.sometimetodosth.Ittakeshim20minutestodrivetotheofficeeveryday.5.Itis+the序數(shù)詞+timethat...ItisthefirsttimethatIhavebeentoShanghai.6.Itissaid/reported/believedthat...Itissaidthatheisrich.Itisbelievedthatthepriceswillberising.物價(jià)7.Itisnogood(use)doingsth.ItisnogoodlearningEnglishwithoutspeakingEnglish.It’snousetryingtoarguewithhim.動(dòng)名詞作主語(yǔ)總結(jié)與練習(xí)

1.WasitduringtheSecondWorldWar______hedied?A.that B.while C.inwhich D.then2.Is______necessarytocompletethedesignbeforeNationalDay?A.this B.thatC.it D.he3.Idon’tthink_______possibletomasteraforeignlanguagewithoutmuchmemory.A.this B.thatC.its D.it4.Does____matterifhecan’tfinishthejobontime?A.this B.thatC.he D.it

5.TheParkersboughtanewhousebut______willneedalotofworkbeforetheycanmovein.A.they B.itC.one D.which6.Infact_______isahardjobforthepolicetokeeporderinanimportantfootballmatch.A.this B.thatC.there D.it

7.Tom’smotherkepttellinghimthatheshouldworkharder,but______didn’thelp.A.he B.whichC.she D.it8.______isafactthatEnglishisbeingacceptedasaninternationallanguage.A.There B.ThisC.That D.It他來(lái)飯店的時(shí)候，已經(jīng)是12點(diǎn)50分了。Itwasalready12:50whenhegottotherestaurant.照顧孤兒是他的職責(zé)。Itwashisdutytotakecareoftheorphans.修車花了我一百美元。Ittookme100dollarstorepairthecar.看樣子她得了重感冒。Itseemed/appearedthatshehascaughtabadcold.9.完成下列漢譯英的練習(xí)。Tohaveagoodknowledgeofhistoryisveryhelpfulforallofus.Itisveryhelpfulforallofustohaveagoodknowledgeofhistory.Tolearnaforeignlanguageisveryusefulforascientist.Itisveryusefulforascientisttolearnaforeignlanguage.Tofinishthisworkinthreehoursisnecessary.Itisnecessarytofinishthisworkinthreehours.Tositbythefirewithabookinwinterisverycomfortable.Itisverycomfortabletositbythefirewithabookinwinter.Toguesswheretheyareisdifficultforme