情态动词的概念和用法

情态动词的概念和用法一、选择题1．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．need2．Dr. Zhong Nanshan once said, "To prevent the spread of this disease, we________never be too careful."A．canB．mayC．mustD．should3．—Do we have to finish this today?—Yes, you ________ . Today is the last day.A．wouldB．mayC．canD．must4．To avoid ________, we’d better ________ the parents’ meeting online.A．gather; holdB．gathering; holdC．gather; holdingD．to gather; to hold5．Hurry up, or we ________ miss the beginning of the film.A．shouldB．mustC．mayD．have to6．—I must go to school today, ________?—No, you ________.You can go as soon as you get well.A．mustn’t I;needn’tB．needn’t I;needn’tC．mustn’t I;mustn’tD．needn’t I;mustn’t7．—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 not8．— Why didn’t you tell it to me earlier?— Why ________ I? I want to have my own secret.A．canB．mayC．shouldD．shall9．—Who’s singing next door? Is it Miss Wang?—It ________ be her. She’s having the board meeting.A．can’tB．shouldn’tC．mustn’tD．needn’t10．—Will my car be ready by the end of the day?—It ________ be, sir. I’ll call if there’s any problem.A．mustB．couldC．shallD．should11．You ________ be careful with the camera. It costs!A．canB．willC．shouldD．may12．Exercise is helpful but it ________ be regular (规律的) exercise.A．mustB．mayC．canD．need13．You'd better __________ hard from now on, __________ you will fail the exam.A．work; andB．working; orC．working; andD．work; or14．—Where is Tom? I am considering _____...