【正文】 根據(jù)“Yes.”和“He has been here for three days.”可知，此處表示非?？隙ǖ耐茰y(cè)，故選B。 cut B. have。t C. needn39。t C. mustn39。 can39。can D. No,yourbefore needn39。t20. —You needn’t take a raincoat. It isn’t going to rain.—Well, I am not sure. It ________ do.A. should B. need C. might D. will21. I go now, or I39。t D. shouldn39。m afraid the doctor ________ see you now—he is busy. said the nurse to the patient.A. mustn39。m too tired to walk on.—I39。t D. can39。d better _______ the sevenstep hand washing method to keep healthy.A. following B. followed C. to follow D. follow16. If you buy your mum an iRobot floor cleaner, she ________ sweep the floor every day.A. can’t B. mustn’t C. needn’t D. shouldn’t17. “Mr. Lin, you’d better ________ too much meat. It’s not good for your health.” said the doctor.A. not to eat B. not eating C. not eat D. don’t eat18. —________ I park my car here?—No, you mustn’t. This is a “No parking” area.A. May B. Can C. Should D. Would19. Please don39。 might not C. Could。t26. —Look at the blue Tshirt on the table. Is it Sam’s? —No, it _______ his. His is white.A. can’t be B. may not be C. couldn’t be D. mustn’t be27. David, you please sweep the floor and take out the trash?A. could B. may C. might D. must28. —There is something wrong with my puter. _____ you help me fix it up?—No problem.A. Could B. Must C. Should D. May29. — Cross the road very carefully. Look both ways, or you_______ be knocked down.— Got it.A. might B. should C. must D. have to30. —MustIt’syou must B. Must。 mustn39。can B. performs。t B. mustn39。s highest peak.A. must B. can C. may D. should45. All the drivers________drive at low speed in this area when students are crossing the road.A. can B. can’t C. must D. mustn’t答案與解析1. B【解析】句意：——這周五郎朗會(huì)去藝術(shù)中心表演嗎？——是的。must一定，必須；may也許；can能夠；need需要。4. C【解析】句意：——托尼在那邊和我們的英語老師談話，不是嗎？——不，不可能是他。你不能錯(cuò)過這個(gè)好機(jī)會(huì)。t不可能；mustn39?？疾榍閼B(tài)動(dòng)詞表推測(cè)?？疾榍閼B(tài)動(dòng)詞詞義辨析。根據(jù)“Dangerous pets”和“won39。t不需要；shouldn39。may可能；could可能；can能夠，可能；must一定?？疾閔ad better的用法?！贬t(yī)生說。“May I...?”的肯定回答是“Yes, you may.”，否定回答是“No，you mustn’t.”?？疾榍閼B(tài)動(dòng)詞辨析。可能會(huì)下雨吧?！?。由句中“take”“I’m sorry”判斷時(shí)態(tài)為一般現(xiàn)在時(shí)，且答語為否定形式，排除B、C，因?yàn)閙ight是may的過去式，C項(xiàng)為肯定回答；could開頭的一般疑問句的答語要用can，排除A項(xiàng)?？疾榍閼B(tài)動(dòng)詞。“Must I…? ”的否定回答是“No，you needn39。can’t be不可能是；may not be可能不是；couldn’t be不能是；mustn’t be禁止。A. Could能，能夠；B. Must必須；C. Should應(yīng)該；D. May可以。might可能；should應(yīng)該；must必須；have to不得不；根據(jù)“be knocked down”及語境可知，此處指的是“可能會(huì)被撞到”，是一種可能的推測(cè)，英語是might，故選A。故選D。這很危險(xiǎn)。故選C。考查情態(tài)動(dòng)詞。t禁止；wouldn39。38. C【解析】句意：——看！河邊有個(gè)人練太極?，旣惤杞o了我們一些錢。can’t不可能；mustn’t禁止，不許；needn’t不需要；shouldn’t不應(yīng)該；根據(jù)后句“I just saw him in the lab.”可知，這里表達(dá)的是“不可能”，是情態(tài)動(dòng)詞的推測(cè)用法，故選A。t不應(yīng)該。43. B【解析】句意：十六歲的孩子們不應(yīng)該被允許開車?？疾榍閼B(tài)