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1、Unit21HumanBiologySectionⅣGrammar03课后演练提能[夯实·基础知识]Ⅰ.用适当的情态动词填空1.Youhaveworkedhardallday.You________betired.答案：must2.—CouldIhavethetelevisionon?—Yes,you________./No,you________.答案：can;can't3.Ifthatisthecase,we________aswelltry.答案：may/might4.—Whydidn'tyouanswe
2、rmyphonecall?—Well,I________havebeensleeping,soIdidn'thearit.答案：must5.Idressedverywarmlyforthetrip,butI________havedoneso.Theweatherwashot.答案：needn't6.Mike________havefoundhiscar,forhecametoworkbybusthismorning.答案：can't7.Candidates________remainintheirseatsu
3、ntilallthepapershavebeencollected.答案：shall8.I________rathertheydidn'thearofthenews.答案：would9.People________diewithoutairorwater.答案：will10.He________speakEnglishbeforesuchacrowd.答案：dare/daren'tⅡ.完成句子1.Tom__________________theexamforheisveryhappynow.汤姆一定已经通过考试
4、了，因为他现在很高兴。答案：musthavepassed2.Ifhe__________________，he__________________greaterprogress.他如果不是因病缺课太多的话，早已经取得更大的进步了。答案：hadnotbeenillandmissedmanyclasses;wouldhavemade3.IfI________you,I__________________tolookforhim.如果我是你，我就会去找他。答案：were;wouldgo4.Ifhe________he
5、re,everything__________________allright.如果他在这儿，一切都会好的。答案：were;wouldbe5.You________________morefromhim,ifyouhadfollowedhim.如果你跟着他学，你本可以向他学到更多东西的。答案：mighthavelearnedⅢ.句型转换1.Ifyouhadnothelpedme,Iwouldhavefailed.(转换为含蓄虚拟条件句)→_____________________________________
6、________________答案：Without/Butforyourhelp,Iwouldhavefailed.2.IfIwereateacher,Iwouldhavelotsofstudents.(转换为省略句)→_____________________________________________________答案：WereIateacher,Iwouldhavelotsofstudents.3.IfweshouldvisitZhejiangUniversitytomorrow,Iwouldpl
7、aybasketballthere.(转换为省略句)→_____________________________________________________答案：ShouldwevisitZhejiangUniversitytomorrow,Iwouldplaybasketballthere.4.IfIhadenteredRui'anHighSchool,Iwouldnotsitherenow.(转换为省略句)→________________________________________________
8、_____答案：HadIenteredRui'anHighSchool,Iwouldnotsitherenow.5.Withoutsunlightorwater,allthelivingthingsontheearthwoulddie.(转换为if条件句)→_____________________________________________________答案：Iftherewe
