常见情态动词及解析

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...