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【精品】Unit4Roadsafety(练习)译林版(三起)六年级英语下一、选词填空。1.You_______playfootballbecauseyouaresick.2.How_______youcrosstheroadsafely?3.You________lookatthetrafficlightsandwaitforthegreenman.4.You________playfootballontheroad.5.You________sithere,becauseitisformysister.二、看图填空。1.Youmustlookfor___________.Youmustlookat___________andwaitfor_______________.2.Youcannotfind__________Youcanwait___________and__________carsandbikes.cancan’tmustmustn’tYoucanalsocrosstheroad______________.Thedriverscanseeyou_________________.3.Whatmustyoudotocrosstheroadsafely?Whatmustyounotdoontheroad?We__________________ontheroad.We__________lookforazebracrossing.We___________________________thepavementandlookoutforcarsandbikes.We_______________________ontheroad.三、按要求改写句型。1.Imustcleanmybedroom.(对划线部分提问)____________you______?2.Hecancrosstheroad.(改为否定句)He___________theroad.3.Theymustcleantheroom.(改为同义句)They_____________cleantheroom.4.Youmustlookatthetrafficlights.(改为否定句)You______________________atthetrafficlights.答案及解析：一、1.mustn’t2.can二、1.azebracrossingthetrafficlightsthegreenman2.azebracrossingonthepavementlookoutforwithotherpeopleeasily3.mustn’trunmustmustwaitonmustn’tplay三、1.Whatmustdo2.can’tcross3.haveto4.mustnotlook解析:1.划线部分cleanmybedroom意思是打扫我的卧室，是询问干什么，用特殊疑问词What来提问，即你必须做什么？Whatmustyoudo?2.肯定句改为否定句先找Be动词，再找情态动词，本句中有情态动词can，只需在can后面加上not即可。3.Theymustcleantheroom.意思是他们必须打扫房间，换句话说也就是他们不得不打扫房间，即Theyhavetocleantheroom.