【语法】情态动词的被动语态-完整版课件

情态动词的被动语态Lead-in语态语态是动词的一种形式，用以说明主语与谓语动词之间的关系。英语的语态共有两种：主动语态和被动语态。Lead-inThegirliswateringtheflower.主动语态Lead-inTheflowerisbeingwatered.被动语态Lead-in被动语态一般现在时：am/is/are+done情态动词的被动语态一般将来时:willbe+done一般过去时：was/were+done现在进行时：am/is/are+being+donePresentation含情态动词的被动语态含情态动词的被动语态，情态动词有should,may,might,can,could,must等。语法讲解Presentation一、基本句型结构：肯定句：主语+情态动词+be+过去分词(done)(+by…)否定句：主语+情态动词+not+be+过去分词(done)(+by…)语法讲解Presentation语法讲解Itcanbeenjoyedbyeveryone.Presentation语法讲解Eachpictureshouldbemadealittledifferentfromtheonebeforeit.shouldnotbemadethesameastheonebeforeit.Soundeffectsmustbeadded.mustnotbeforgotten.Presentation3.一般疑问句：情态动词

+主语+be+过去分词(done)(+by…)语法讲解ShouldEachpicturebemadealittledifferentfromtheonebeforeitMustSoundeffectsbeaddedPresentation一般疑问句的答语：Yes，主语+情态动词.No，主语+情态动词+not.语法讲解Yes,itshould.No,itshouldnot/shouldn’t.Yes,theymust.No,theymustnot/mustn’t.PracticeDrawingcartoonfacesWhenwedrawacartoonface,somepartsoftheface______________(should/make)biggertomakethefacelookfunny.Solet’sstarttodrawacartoonfacesforthewoman!shouldbemadePracticeAroughcircle_______________(should/draw)first.Thenanoseandbigglasses________________(should/add).Next,apairofsmalleyesandasmilingmouth_______________(must/draw).Themouth______________(can/make)largertomakethewomanlookfriendlier.shouldbedrawnshouldbeaddedmustbedrawncanbemadePracticeFinally,somehair______________(should/add)tothecartoon.Theface_______________(can/colour)withbrightcolours.canbecolouredshouldbeaddedPractice将主动句变为被动句。1.Imustfinishtheworktoday.Thework_______________bymetoday.2.WecanplanttheflowersinFebruary.Theflowers______________byusinFebruary.随堂练习mustbefinishedcanbeplantedPractice按要求改写句子。1.Tablecanbemadeofstones.(否定句)______________________________.2.Teenagersshouldbeallowedtogoshopping.(一般疑问句并做否定回答)_______________________________________?__________________.随堂练习TablecannotbemadeofstonesShouldteenagersbeallowedtogoshoppingNo,theyshouldn’tPractice【2013.上海】Theclassroom________every

day.A.

shouldclean

B.

shouldhaveclean

C.

shouldbecleaned

D.

cleans

【解析】本题考查情态动词的被动语态，结构是“情态动词+be+done”，故选C直击中考CPractice直击中考【2010.上海】Theoldpeopleshould_______topolitely.A.

speakB.

spoke

C.

bespoke

D.

bespok