2025年人教版高考英语一轮总复习语法专题突破专题2第3讲情态动词和虚拟语气.pptxVIP

;第三讲情态动词和虚拟语气;集训夯基·素养提能;考点突破·精讲即练;情态动词

情景导入

Lucyisanoutgoinglady.Shecan①playmanykindsofmusicalinstruments.Actually，shecould②playthepianowhenshewas8yearsold.Lucyalsokeepstakingexerciseeveryday.Shesaysthatshehasto③dosomesportsbecauseshemust④keepslim.

“Youshall⑤getfatsoonifyoudonttakeexerciseeveryday.”Sheusuallysaystoherfriends.;Asforher，anelegantladyshould⑥trytokeepfit.However，lastweek，shefoundthatshemight⑦putonweightandshewasworriedanddecidedtoloseweight.Andthesedayssheisalwaysthinkingthatshemay⑧succeedsoonifshetriesallherbest.However，sheisalwayslackingintimebecausesheoughtto⑨takecareofherchildren.;Onenightaftersupper，shewalkedquicklyinordertogodancingattheTomorrowParkbutshewaslate.Onherway，shethoughtthatthedancingmusthavebegun⑩，andthecoachcouldhavetaughtorshown?manynewmoves.Shewasafraidthatherfriendsmighthaveleft?beforeshegotthere.Shewasregretfulthen.Sheshouldhavehad?supperearlier,orshecouldhavetaken?ataxi，andindeedsheneednthavetaken?abathinadvance.Whenshereachedtheparkfinally,shefoundnobodywasthere.Sherememberedsuddenlythatithadbeenreportedontheradiothattherewouldbeaheavyrainthatnight.;用法感悟

1．①can和②could表_____，意为“_____”。

2．③haveto表示“______”。强调_________。

④must表_____，强调说话者的_________。

3．⑤shall用于第____人称，表示说话人给对方_____。

4．⑥should⑨oughtto表示“_____”。

5．⑧may⑦might表示_____，意为“_____”。;6．⑩musthavedone?couldhavedone?mighthavedone表示对过去所做事的_____。

7．?shouldhavedone?couldhavedone?neednthavedone表示对过去所做事(没做的事)_____________。;一、情态动词的基本用法

1．can/could

(1)表示“能力”，意为“能，会”。

Icantpromiseanything,butIlldowhatIcan.

我不能许诺什么，但我会尽力而为。

(2)表示推测，意为“可能”，往往用于否定句或疑问句中。can比could语气强。

ThatcantbeMary—sheisinLondonnow.

那不可能是玛丽——她现在在伦敦。;(3)表示客观可能性，意为“有时候会”，多用于肯???句。

Creditcardsprovideuswithlotsofconvenience,butsometimestheycanleadtoproble