常见情态动词 及解析一、选择题1.When you visit a museum, some instructions should ________ and we’d better not ________ them.A.pay attention to; be againstB.be paid attention; againstC.be paid attention to; againstD.be paid attention to; be against2.Don’t cross the road until the traffic lights turn green. A car_______hit you.A.needB.mayC.shouldD.must3.—Must the children leave at six tomorrow morning?—No, they _______. They can have more time to get ready for the trip.A.can’tB.needn’tC.mustn’tD.may not4.— Why didn’t you tell it to me earlier?— Why ________ I? I want to have my own secret.A.canB.mayC.shouldD.shall5.—Hurry up, Jack! Let’s cross the road as fast as possible.—No, you ________. Don’t you see the light is still red?A.couldn’tB.wouldn’tC.mustn’tD.needn’t6.—The high school entrance examination is coming!— Yes, our teacher tells us we ________ be too careful while taking exams.A.mustn’tB.shouldn’tC.needn’tD.can’t7.We shouldn’t throw any objects from the building. Even a small object ________ cause serious injuries or death, when dropped from a great height.A.mustB.shouldC.mayD.need8.— ________ you give me a hand? I can’t put up the poster by myself.—No problem.A.CouldB.ShouldC.NeedD.Must9.—Do we have to finish this today?—Yes, you ________ . Today is the last day.A.wouldB.mayC.canD.must10.Exercise is helpful but it ________ be regular (规律的) exercise.A.mustB.mayC.canD.need11.It’s of great importance to protect the environment. Each of us ________ take an active part in it.A.canB.mayC.wouldD.should12.I ________ hear you clearly. Would you please repeat it?A.mustn’tB.can’tC.needn’tD.shouldn’t13.A lot of online resources ________ be used either by t...