高考英语语法易错点30题精讲练：专题09 情态动词导学案（原卷板+解析版）.docxVIP

高考英语语法【情态动词】易错点30题精讲练解析版

专题九情态动词易错点集锦

情态动词本身有一定的词义，但需和其他动词一起构成谓语，除ought,used外，情态动词后面接动词原形。情态动词中haveto可以用havegotto代替；need,dare也可用实意动词；usedto有两种否定形式：usednotto和didnotuseto.

can,could表示具有某种能力，指有能力做某事Hecouldswimwhenhewasfive.Bytheageofsevenhecouldwritebeautifully.

表示请求和允许，和may相近；口语中可用could表示委婉语气，但回答时仍用can－Could/CanIuseyourpen－Yes,ofcourseyoucan.CouldIaskforyourreactiontothispolicy

表示推测，常用于否定句和疑问句中Mikecanthavefoundhiscar,forhecametoworkbybusthismorningIthinktheworkcanbecompletedaheadoftime.

表示“有时也会”Itcanbequitewindythere,especiallyinspring.

cannotbutdosth.表示“只好，不得不”Fathercannotbutagreewithhisdaughtersopinion.

canthelpdoingsth.表示“禁不住做某事”Icanthelpfeelingsorryforthepoorman.Thefilmissoimpressivethatwecanthelpcrying.

beabletobeableto可以有多种时态，如：将来时（willbeableto),完成时（have/has/hadbeenableto)IwillbeabletospeakFrenchinanotherfewmonths.IhavebeenabletoswimsinceIwas5.

beableto侧重通过努力成功做成某事的能力Hesaidhecouldswimacrosstheriver.(指本身具有这种能力）Atlasthewasabletoswimacrosstheriver.(指通过努力做到了）

may,might表示允许、许可或征求允许，否定回答时要用mustnt;might比may语气委婉－Might/MayIsmokeinthisroom－No,youmustnt.－May/MightItakethisbookoutoftheroom－Yes,youcan.(No,youmustnt.)

表示可能性，might比may可能性更小Ithinkthetripmaygivemetimetocalmdown.Anactivevolcanomayexplodeatanytime.Dontgotoofarafieldorwemightloseyou.

may/mightaswelldosth.“不妨做某事，还是做某事为好”Everythingisready.Wemightaswellstartnow.

will,would表示意志、决心或愿望Wewilldoourbesttosavethechild.Itoldhertostopcrying,butshejustwouldntlisten.

用于第二人称，表示请求、建议等Will/WouldyoupleaseposttheletterformeWontyoutakeoffyourcoat

will表示“总是，惯于”；would表示过去的习惯，意为“过去常常”Whenhewasachild,hewouldoftengoskiing.Hewouldsitthereforhourssometimesdoingnothingatall.

表示推测或猜想Thiswillbethehouseyourelookingfor.Ithinkhewouldacc