2019-2020学年高中英语 Module 3 Music Section Ⅲ课件 外研版必修2

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SectionⅢGrammar—时间状语从句和过去完成时语法图解探究发现①Whenhewasveryyoung,Mozarthadalotofmusicaltalent.②Whilehewasstillateenager,hewasabigstar.③Ashegrewolder,hebegantogodeaf.④Bythetimehewas14,Mozarthadcomposedmanypiecesfortheharpsichord,pianoandviolin,aswellasfororchestras.⑤Aftertheyhadknowneachotherformanyyears,Beethovensaid,“Heisagoodcomposer,buthehastaughtmenothing.”⑥BeforetheyvisitedIndia,theyhadrecordedsevenalbums.[我的发现](1)以上所有例句中都包含一个从句。(2)例句④⑤⑥都包含了一般过去时或。(3)例句①②中,when和while都表示“”,例句③中as表示“”。(4)例句④⑥中,bythetime和before引导时间状语从句,从句用一般过去时,主句则用。(5)例句⑤中,after引导时间状语从句,主句用一般过去时,______用过去完成时。时间状语过去完成时当……时候随着过去完成时从句一、时间状语从句1.when,while,as,before,after,till,until引导的时间状语从句Itwasrainingwhenwearrived.我们到的时候正在下雨。Whileshewastypingtheletter,thetelephonerang.当她在打那封信时,电话响了。Astheheavysnowcame,theweathergotcolderandcolder.随着大雪的来临,天气变得越来越冷。Beforethesalesstart,Imakealistofwhatmykidswillneedforthecomingseason.大减价开始之前,我为我孩子们在即将到来的季节所需要的东西列个清单。Iwon'ttellthestudenttheanswertothemathproblemuntilhehasbeenworkingonitformorethananhour.我不会告诉学生数学题目的答案,直到他算了一个多小时。[名师点津](1)while引导的从句中的动词必须是延续性动词或状态动词,when从句中的动词可以是延续性的,也可以是非延续性的。(2)as引导的时间状语从句,侧重动作发生的过程,意为“一边……一边……,随着”。(3)before,after引导从句时,为连词,如果不接从句,则是介词,后可跟动名词作宾语;before常用于句型“It+will/wouldbe+时间段+before...”中,表示“要过多久才……”。Beforeleaving,hethoughtitcarefully.在离开之前,他仔细想了一下。Itwillbetwoyearsbeforeheleaves.再过两年他才会离开。(4)till,until引导从句时,如果主句谓语动词是瞬间动词,主句通常为否定句,表示动作到until所表示的时间才发生;如果主句动词是延续性动词,主句通常为肯定句,表示动作一直持续到until所表示的时间为止。Ididn'tgotobeduntilmyfathercameback.直到父亲回来我才上床睡觉。I'llstayheretill/untiltherainstops.我会一直待在这里直到雨停。即时演练11-1.单句改错①Theysleptwhenwekeptwatchingoverthem.②IwasquitehappywhileIfoundmylostwatch.③Afterinvited,Idecidedtoattendtheparty.④Whentimegoesby,hegrowsstronger.when→whilewhile→whenAfter后加beingWhen→As1-2.完成句子⑤它在运动过程中经常改变速度和方向。Itoftenchangesinspeedanddirection.⑥当六点的钟声敲响的时候,汤姆起床了。___________________________,Tomgotup.⑦对不起,你来的时候我在北京。Sorry,IwasinBeijing.whileitismovingWhen/Astheclockstrucksixwhenyoudroppedin⑧男孩们沿着他们之前留下的脚印直到他们找到回到营地的道路。Theboysfollowedthemarksthattheyhadleft______________________________________tothecampsite.⑨当医生们完成了二十个小时的手术后,全医院的人都欢呼起来。Hospitalstaffburstintocheers____________________________________________.untilfinallytheyfoundtheirwaybacktheyfoundtheirwayback20­houroperation2.assoonas,immediately,directly,instantly,themoment,theminute,theinstant,thesecond,once,nosooner...than,hardly...when引导的时间状语从句,表示“一……就……”IcamedirectlyIgotyourmessage.我一得到你的消息,就来了。ThemomentIcompletedthe3,000­meterraceintheschoolsportsmeet,mylegsgaveout.一跑完校运会的3000米长跑,我的腿就动不了了。[名师点津]当nosooner...than,hardly...when中的nosooner,hardly置于句首时,主句要用部分倒装。NosoonerhadJackseenmethanhelefttheclassroom.(=HardlyhadJackseenmewhenhelefttheclassroom.)杰克一看见我就离开了教室。3.theday,themonth,theyear,thefirst/second...time,nexttime,everytime,eachtime等名词短语引导的时间状语从句ThefirsttimeIwenttotheSouthLakeinHanzhong,Iwasdeeplyimpressedwithitsbeautifulscenery.我第一次去汉中南湖的时候,被它的美丽的风景深深地吸引了。EverytimeItravelledbyboat,Igotseasick.每次我乘船旅行都会晕船。即时演练22-1.单句改错①Ihadnosoonerclosedthedoorwhensomebodyknocked.②Itisverynormaltofeeltenseforthefirsttimeyoutakepartinarace.③Nexttimeyouwillcomein,pleaseclosethedoor.④Hestartedtellinguswhathadhappenedinstanthearrived.when→than去掉for去掉willinstant→instantly2-2.完成句子⑤Peter是一个负心人,事业一成功他就抛弃了妻子。Peterwasaheartbreaker.Hedesertedhiswife______________________________________hisbusinessbegantotakeoff.⑥每次我参加小组讨论时,我发现我难以启口。_______________________________________,Ifinditdifficulttoexpressmyself.second/minute/instantthemoment/EverytimeItakepartinagroupdiscussion⑦她还没走出家门,就有一个学生来看望她。______________________________astudentcametovisither.⑧在收到电报的当晚,他就回到了家。Hereturnedhome.⑨一旦明白了这条规则,就再也没有困难了。__________________________,you'llhavenofurtherdifficulty.HardlyhadshegoneoutwhenthenighthereceivedthetelegramOnceyouunderstandthisrule4.bythetime,since引导的时间状语从句Bythetimeyougraduate,wewillhavelivedinAustraliaforoneyear.到你毕业的时候,我们在澳洲居住就会有一年了。IhavebeeninBeijingsinceyouleft.自从你离开以来,我一直在北京。[名师点津](1)bythetime引导时间状语从句时,主句常用完成时。(2)since引导的从句的谓语动词可以是延续性动词,也可以是瞬间动词。一般情况下,从句谓语动词用一般过去时,而主句的谓语动词用现在完成时。但在“Itis/hasbeen+时间段+since从句”的句型中,表示“自……以来已经有……时间了”,从句谓语用瞬间动词时,表示动作持续了多久;用延续性动词,表示动作停止了多久。Itisthreeyearssincehejoinedthearmy.他参军三年了。Itisfivedayssincehewashere.他离开这儿五天了。即时演练33-1.单句语法填空①Itis/hasbeentenyearssincehe(leave)home.②Hurryup!Bythetimewegettothechurch,themarriageservice(start).③He(be)upseteversincehegotdivorced.④We(know)eachothersincewewerechildren.⑤—Ihearyouworkedverylateyesterday.—Yes,it(be)completelydarkbythetimeI_____(leave)theoffice.leftwillhavestartedhasbeenhaveknownhadbeenleft3-2.完成句子⑥到交通通畅的时候,我们的油都要用完了。Bythetimethetrafficclears,we.⑦他不在这里工作已经有三个月了。Ithasbeenthreemonths.⑧到Mat先生开始新工作时,他已经被说服戒烟。Mr.Matgiveupsmokingintheofficebythetime.⑨我没有认出姑姑来,因为她比我上次见到她时变了很多。Ididn'trecognizemyauntbecauseshe___________________sinceIsawherthelasttime.⑩自从我上次见到你以后,你到哪儿去了?______________________sinceIlastsawyou?willhaverunoutofgassinceheworkedherehadbeenpersuadedtohestartedhisnewjobhadchangedalotWherehaveyoubeen二、过去完成时1.过去完成时的基本用法(1)过去完成时的构成为“had+过去分词”,它表示过去某一时刻或动作之前已经完成或存在的状态。过去完成时常与by,bytheendof,bythetime,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