高中人教版英語選修6課件Unit4SectionⅢ-Grammar

Section

Ⅲ—Grammar一二三一、觀察每組句子,并試著將它們譯成漢語1.(1)Hedidwrongthingsandsaidwrongwords.(2)Hediddowrongthingsanddidsaywrongwords.2.(1)Humanactivityhascausedglobalwarming.(2)Itishumanactivitythathascausedglobalwarming.(3)Itisglobalwarmingthathumanactivityhascaused.答案：他做了錯事,說了錯話。

答案：他的確做了錯事,說了錯話。

答案：人類活動造成了全球變暖。

答案：正是人類的活動才造成了全球變暖。

答案：人類活動造成的正是全球變暖。

一二三3.(1)Duringthe20thcenturythetemperatureoftheearthwentupaboutonedegreeFahrenheit.(2)Itwasduringthe20thcenturythatthetemperatureoftheearthwentupaboutonedegreeFahrenheit.(3)ItwasaboutonedegreeFahrenheitthatduringthe20thcenturythetemperatureoftheearthwentup.答案：在20世紀(jì)地球溫度上升了大約1華氏度。

答案：是在20世紀(jì)地球溫度上升了大約1華氏度。

答案：地球在20世紀(jì)升高的溫度大約有1華氏度。

一二三二、根據(jù)所學(xué)知識,對下列句子的畫線部分進(jìn)行強(qiáng)調(diào)1.Youshouldturntoyourheadteacherformorehelp.

2.Notwhatsomeonesaidbutwhathedidmatters.

3.ThecouplegotmarriedonMay1st1999.

4.Who

shouldtakemeasurestostopusingplasticbags?5.Thefootballmatchhadtobeputoffbecauseofthebadweather.

答案：Itisyourheadteacherthat/whoyoushouldturntoformorehelp.答案：Itisnotwhatsomeonesaidbutwhathedidthatmatters.答案：ItwasonMay1st1999thatthecouplegotmarried.答案：Whoisitthatshouldtakemeasurestostopusingplasticbags?答案：Itwasbecauseofthebadweatherthatthefootballmatchhadtobeputoff.一二三ititselfitthatitsit的用法(2)it用于強(qiáng)調(diào)句型1.基本句子結(jié)構(gòu):Itis/was+被強(qiáng)調(diào)的部分+who/that+剩余部分。在英語中,我們常用此結(jié)構(gòu)來突出強(qiáng)調(diào)句子的某一成分(通常強(qiáng)調(diào)主語、賓語和狀語)。在這個句型中,it沒有詞匯意義,只是引出被強(qiáng)調(diào)的成分。(注意:如果強(qiáng)調(diào)人,用who或that都可以,強(qiáng)調(diào)其他的只能用that。)①ItisIwho/thatamgoingtobesenttheretohelpthem.是我將被派去那里幫助他們。②Itwasanoldfriendthat/whohemetintheparkyesterday.他昨天在公園里遇到的是一個老朋友。③ItwasinthisvillagethatIwasbroughtup.我是在這個村莊長大的。④Itwasbecauseshewasillthattheydidn’taskhertodothejob.是因為她病了,他們才沒讓她做這項工作。⑤Itwasnotuntilshehadarrivedhomethatsherememberherappointmentwiththedoctor.她是已經(jīng)到家了才想起和醫(yī)生的預(yù)約。歸納:(1)強(qiáng)調(diào)主語時,who/that后的謂語與被強(qiáng)調(diào)部分保持一致;(2)not...until句式的強(qiáng)調(diào)句結(jié)構(gòu)為:It

is/was

not

until+被強(qiáng)調(diào)部分+that+剩余部分。2.強(qiáng)調(diào)句的一般疑問句句型:Is/Was+it+被強(qiáng)調(diào)的部分+that/who+其他?WasitbecausehewasintroublethatMarytriedtohelphim?是因為他遇到麻煩了所以瑪麗才盡力幫他的嗎?3.強(qiáng)調(diào)句的特殊疑問句句型特殊疑問詞+is/was+it+that/who+其他?WhywasitthatMarytriedtohelphim?是因為什么瑪麗才盡力幫他的呢?③Itwasinthelabthat/whichwastakenchargeofbyMrHarristhattheydidtheexperiment.句型:強(qiáng)調(diào)句中包含定語從句分析:去掉“Itwas”和“that”后,句子主干為“Theydidtheexperimentinthelab.”,結(jié)構(gòu)完整;that/whichwastakenchargeofbyMrHarris在lab后作其定語從句。注意強(qiáng)調(diào)句和其他句型的區(qū)別,慎選連接詞。例如:Itwas7o’clockwhenhecameback.他回來時7點鐘了。Itwasat7o’clockthathecameback.他是7點鐘回來的。一二一、單句語法填空1.ItmightbeIthat

(be)toanswerforit.

答案:am2.Itwas’tuntilnearlyamonthlater

Ireceivedthemanager’sreply.

答案:that3.—Whywas

thatyoulostallyourkeys?

—Itwasbecauseofmycarelessness.答案:it4.It’smorethanhalfacentury

mygrandfatherjoinedtheParty.

答案:since一二一二10.WasitBill,

playedbasketballverywell,

helpedtheblindmanacrossthestreet?

答案:who;that一二二、單句改錯1.It’sshethatwevisitedyesterday.答案:she→her2.It’stheboynothisparentsthataretoblame.答案:are→is3.Wherewasityouwentonsummervacationlastyear?答案:it后加that4.ItwasinQingdaowhereIsawtheseaforthefirsttime.答案:where→that一二5.Itwaslackofmoney,notofeffort,whichdefeatedtheirplan.答案:which→that6.Itwasalreadymorningthathewokeup.答案:that→when7.—Wheredidyougetthebook?—Itwasinthe