2019届九年级英语全册 Unit 7 Teenagers should be allowed to

单元语法归纳与练习含有情态动词的被动语态1.含情态动词的被动语态的构成:情态动词(can,may,must,should等)+be+及物动词的过去分词。2.含情态动词的被动语态的句式:句式结构例句肯定句主语+情态动词+be+及物动词的过去分词(+by...)Theclassroommustbecleanedeveryday.教室每天都要打扫。否定句主语+情态动词+not+be+及物动词的过去分词(+by...)Heshouldn’tbeallowedtodrive.他不应该被允许开车。一般疑问句情态动词+主语+be+及物动词的过去分词(+by...)?Shouldyourhomeworkbefinishedbeforesix?你的家庭作业应在6点前完成吗?特殊疑问句特殊疑问词+情态动词+主语+be+及物动词的过去分词(+by...)?Whenmustthisworkbedone?这项工作必须在什么时候完成?Ⅰ.单项选择()1.Teenagersdecideforthemselves.(2017岳阳)A.maybeallowedtoB.mayareallowedtoC.maybeallowto()2.—Laura,yourhomeworkshouldbeforeyougoout.—OK,Dad.(2017济南历城区期中)A.finishB.befinishedC.finishedD.havefinishedAB()3.—Tomisalwayscarelesswithhisschoolwork.Couldyouhelphim?—Noproblem!Ithinkhetothinktwicebeforestarting.A.shouldbetoldB.cantellC.shouldtellD.canbetelling()4.Childrenshouldtobehonestfromayoungage.A.educateB.beeducatedC.punishD.bepunished()5.—What’sthemeaningoftheactivity“Let’sSave”?—Papershouldn’tineverydaylife.A.wasteB.wastedC.bewastedD.iswasted()6.Acoatcanforkeepingwarm.A.beusedB.isusedC.beenusedD.usedABCA()7.Tomakeourcitymorebeautiful,rubbishintotheriver.A.needn’tbethrownB.mustn’tbethrownC.can’tthrowD.maynotthrow()8.—Ifwetakeashowerinsteadofabath,morewater.—Iagreewithyou.A.hassavedB.cansaveC.canbesaved()9.Hurryup!Theexammustin100minutes.A.finishB.befinishedC.isfinished()10.—HowoftendoIneedtofeedthedog?—Itfoodeveryday,oritwillbehungry.A.mustgiveB.mustbegiveC.mustgaveD.mustbegivenBCBDⅡ.把下列句子改为被动语态11.Canyourepairthemachine?themachine?12.Hecanmendthebikeintwodays.Thebikeintwodays.13.Youmusttakethismedicinethreetimesaday.Thismedicinethreetimesaday.14.Weshouldmakeourcountrybecomemoreandmorebeautiful.Ourcountrytobecomemoreandmorebeautiful.15.Wemustspeaktooldpeoplepolitely.Oldpeopletopolitely.Canberepairedcanbemendedmustbetakenshouldbemademustbespoken