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英语的两大语态(yǔtài)：主动语态(yǔtài)和被动语态(yǔtài)各种时态的主动语态和被动语态谓语(wèiyǔ)结构对照表5.现在进行(jìnxíng)时态中被动语态的构成:is/am/arebeing+pp.7.现在完成时中(shízhōnꞬ)被动语态的构成:have/hasbeen+pp.Practice1--Turnthefollowingsentencesintopassivevoice:8.BytheendoflastJuly,Ihadfinishedallthehomework.---BytheendoflastJuly,allthehomeworkhadbeenfinished.Youmustdesigntheposterbeforelunch.---Thepostermustbedesignedbeforelunch.10.Allofusshouldprotecttheenvironment.---Theenvironmentshouldbeprotectedbyusall.11.Wecan’tlearnEnglishwellinsuchashorttime.----Englishcan’tbelearntwellinsuchashorttime.12.I’mnotsuretheymightaskTomtospeakatthemeeting.----I’mnotsureTommightbeaskedtospeakatthemeeting.在学习(xuéxí)被动语态中要注意的问题I使役(shǐyì)动词和感观动词主被动语态对照表3.有些动词(dòngcí)短语也没有有被动语态带双宾语的动词主要(zhǔyào)有以下几个：A:动词need.require.want.beworth.后加v+ing的主动结构(jiégòu)常表示被动含义2025/3/6语气(yǔqì)的分类虚拟语气的概念(gàiniàn)IFSentenceStructure‘IF’虚拟(xūnǐ)条件句的结构PRACTICE1:Fillintheblanks.a.Ifthey(be)here,they(take)youradvice.b.Iftheworld-war(break)outagain,what(happen)topeopleonearth?c.Ifthepoliceman(benot)ondutyeveryday,it(be)verydangerous.IfI(be)you,I(ask)teacherforhelp.PRACTICE2:Fillintheblanksa.IfTom_(be)morecarefulintheexam,he______________(pass)italready.b.Ifyou_______________(get)upearlier,you________________(catch)thefirsttrain.c.IfI____________(meet)youyesterday,we_____________________(go)totheconcerttogether.IwishIrememberedtheaddress.Exercises:Weallsuggestthathe(should)finishhishomeworkfirst.我们建议Tom去休息一下(yīxià)。他坚决要求我到场。国王命令囚犯明天要实施死刑。他们要求我们派他们去那儿工作。感谢您的观看(guānkàn)！内容(nèiróng)总结
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