外研版高中英語必修第二冊學(xué)案Unit2Letscelebrate突破·語法大沖關(guān)Word版含解析【高考】

情態(tài)動詞(2)1．may/might[觀察例句]①—MightIaskforapictureofyourlittledaughter?—Yes，youmay.②Wemaygotothecinematonight，butwearenotsureyet.③Mayyoubehappyeveryday!④Thereisnothingtodo，soImayaswellgotobed.[歸納用法](1)表示請求、許可。在疑問句中用might比may的語氣更委婉。(2)表示推測意為“可能、或許”。might比may語氣弱。(3)表示祝愿，常用結(jié)構(gòu)為“May＋主語＋動詞原形！”(4)may/mightaswell表示“不妨”。[即學(xué)即練1]單句語法填空①May/MightItakethebookoutofthelibrary?②Hemayebackinanhour，butI'mnotsure.③Nowthatyouhavee，youmay/mightaswellstay.④Mayyouenjoyyourself!2．shall/should/oughtto[觀察例句]①ShallIbuysomepicturebooksforthechildren?②ShallTomgotherewithmetomorrow?③Youshallfinishyourhomeworkfirstbeforeyougooutandplay.④Oneofourrulesisthateverystudentshallwearschooluniformwhileatschool.⑤Youshould/oughttoputmoreeffortintoyourwork.⑥Shepromisedtoeby10o'clock.Sheshould/oughttobehereatanymoment.⑦It'snotsurprisingthatpeopleshouldbesuspiciousofpoliticians'promises.[歸納用法](1)shall用于第一、三人稱的疑問句中，征求對方的意見。(2)shall用于第二、三人稱的陳述句，表示說話人給對方的命令、警告、允諾或威脅；此外，當(dāng)頒布法律、規(guī)定時也用shall。(3)should/oughtto都表示勸告和建議，意為“應(yīng)該”。此時oughtto比should語氣要強。(4)should/oughtto都表示預(yù)測可能性，意為“按道理應(yīng)該會”。(5)should表示驚訝、意外等情緒，意為“竟然”。[即學(xué)即練2]單句語法填空①Shallweputoffthesportsmeettillnextmonth?②Youshallreceiveallthemoneythatisowedtoyou.③Weshould/oughttobestrictwithourselves.④HeleftParisinthemorning.Soheshould/oughttoarriveherebysuppertime.⑤Itisstrangethatsuchthingsshouldhappeninourschool.3．will/would/usedto[觀察例句]①Ifyouwillreadthebook，Iwilllendittoyou.②Wouldyoueintothebarandhaveadrinkwithme?③Everyeveninghewillhaveawalkalongtheriver.④IstillremembermyhappychildhoodwhenmymotherwouldtakemetoDisneylandatweekends.⑤Heusedtospendallhismoneyonfoodanddrink;nowhelivesasimplelife.[歸納用法](1)will/would表示意愿，可用于各種人稱。(2)will/would表示“請求；建議”，此時would比will更委婉。(3)will/would表示習(xí)慣，意為“總是，習(xí)慣于”。與usedto相比，would表示過去重復(fù)、習(xí)慣性動作；而usedto則強調(diào)過去與現(xiàn)在的對比。[即學(xué)即練3]單句語法填空①Wewillnevergiveupworking，whateverhappens.②Wouldyoumindopeningthewindowforme?③Hewilltalkforhoursifyougivehimthechance.④LastyearourEnglishteacherwouldtellusstoriesinEnglishafterclass.⑤Iusedtosmoke，butIhavegivenitup.4．“情態(tài)動詞＋havedone”[觀察例句]①Sincenobodygavehimanyhelp，hemusthavedonetheresearchonhisown.②Hecan'thavegonetoShanghai，forIsawhimaminuteago.③Hemighthavesaidsoatthemeeting，butI'mnotsure.④Youcouldhavedonebetter，butyoudidn'ttryyourbest.⑤Iwasreallyanxiousaboutyou.Youshouldn'thavelefthomewithoutaword.⑥Youneedn'thavetoldhimthenews;hehashearditalready.[歸納用法]※表示對過去的推測(1)musthavedone表示對過去發(fā)生的事情十分肯定的推測，意為“一定做過某事?！?2)can/couldhavedone用于否定句和疑問句，表示對過去發(fā)生的行為的懷疑和不肯定，意為“不可能已經(jīng)……”或“可能已經(jīng)……了嗎？”(3)may/mighthavedone用于肯定句和否定句，表示對過去發(fā)生某事的可能性的推測，意為“或許做過某事”或“或許沒做過某事”?！硎竞蠡凇⒇?zé)備或遺憾等情緒(4)can/couldhavedone用在肯定句中，表示對過去沒有實現(xiàn)的可能性的遺憾，意為“本來能做……實際上卻未做”。(5)should/oughttohavedone表示本該做某事而實際上未做；否定式表示本不該做但卻做了。(6)needn'thavedone表示做了本來不必做的事。[即學(xué)即練4]完成句子①昨晚一定下雨了，因為地面還是濕的。Itmusthaverainedlastnight，forthegroundiswet.②他或許會多給你一些幫助，即使他很忙。Hemay/mighthavegivenyoumorehelp，eventhoughhewasbusy.③他本來能通過考試，但他太粗心了。Hecouldhavepassedtheexam，buthewastoocareless.④你本沒有必要來，今天是周日。Youneedn'thaveetotheschool.ItisSundaytoday.⑤現(xiàn)在太晚了，那時你本該抓住機會的。It'stoolatenow.Youshouldhavegraspedthechancethen.Ⅰ.用適當(dāng)?shù)那閼B(tài)動詞填空1．Theymay/mightbehavingameeting，butI'mnotsure.2．Whenhelivedinthecountryside，hewouldgofishingeveryday.3．Ifyouwillhelpus，weshallbeverygrateful.4．Don'tworry，youshallhavethereplythisafternoon.5．Canhehavegoneabroadwhenwegetthere?6．Hemusthavebeentotheisland，forheknowsalotaboutit.7．Georgecan'thavegonetoofar.Hiscoffeeisstillwarm.8．Youneedn'thaveworried－itallturnedoutfine.9．Theflowershavedied.Ishouldhavewateredthemoften.10．Hecouldhavepassedthedrivingtestatthefirstattempt，buthewastoonervous.Ⅱ.用適當(dāng)?shù)那閼B(tài)動詞或括號內(nèi)單詞的適當(dāng)形式完成短文I'msorrytolearnthatyou'vefailedintheexamination.Yousaidyoucould1.havepassed(pass)itbutyouweretoonervous.Butthings2.maynotbelikethat.Ifyouhadmadeenough3.preparations(preparation)，youwouldn't4.havebeen(be)toonervous.Ithinktherealreasonforyourfailure5.mustbethatyoudidn'tdoyourbest.Whenanopportunityes，we6.should/ou