【正文】 n’t不能，表禁止；shouldn’t不應該，表建議；needn’t不必，指沒有必要；can’t不能，表沒有能力或不許可。8．D解析：D【詳解】句意：我們的化學老師總是告訴我們考試前怎樣用功都不為過。must必須；should應該；may可能；need需要。當從很高的高度掉落時，即使一個小的物體可能導致嚴重的傷害或死亡。故選C。mustn’t禁止；should應當；can會、能；needn’t不需要。我馬上把火撲滅。6．C解析：C【詳解】句意：——小心！火有時候會很危險。may也許；may not也許不；must一定；can’t不能。她總是這個時候回家。5．C解析：C【詳解】句意：——有人敲門。can能夠；may可以；should應該；shall將，會。4．C解析：C【詳解】句意：——你為什么不早點告訴我？ ——我為什么應該告訴你？我想要保守我自己的秘密。can’t不能；needn’t不必；mustn’t禁止；may not可能不會。他們可以有更多的時間為旅行做準備。故選B。shouldn’t不應該；needn’t不必，不需要；couldn’t不可能；wouldn’t不會?，旣惤杞o了我們一些錢。故選D?？疾楹閼B(tài)動詞的被動語態(tài)和情態(tài)動詞跟動詞原形。 for D．No, we needn’t。 of B．No, we mustn’t。get used to it in winter.A．can’t B．needn’t C．mustn’t D．shouldn’t20．You ________ write the report again because spelling mistakes are not allowed at all.A．must B．can C．may D．could21．Cars ________ give way to walkers on some roads in Binhai, or the drivers will be fined.A．may B．will C．can D．must22．—Must I finish all my homework today, Mum?—No, you ________, my dear. You can finish some tomorrow if you like.A．needn’t B．shouldn’t C．can’t D．mustn’t23．We39。t D．can39。t B．shouldn39。t D．mustn39。t B．can39。 to hold12．It’s amazing that the pen ________turn voice into text with few mistakes.A．can B．must C．may D．need13．Please don39。 hold C．gather。t11．To avoid ________, we’d better ________ the parents’ meeting online.A．gather。t D．told。t C．tell。t B．telling。 be against2．To my joy, we_________ go to the bank. Mary has lent us some money.A．shouldn’t B．needn’t C．couldn’t D．wouldn’t3．—Must the children leave at six tomorrow morning?—No, they _______. They can have more time to get ready for the trip.A．can’t B．needn’t C．mustn’t D．may not4．— Why didn’t you tell it to me earlier?— Why ________ I? I want to have my own secret.A．can B．may C．should D．shall5．—There is a knock at the door.—It ________ be my mom. She always es back home at this time.A．may B．may not C．must D．can’t6．—Be careful! Fire ________ be dangerous sometimes. —OK. I will put it out right away.A．mustn’t B．should C．can D．needn’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．must B．should C．may D．need8．Our Chemistry teacher always tells us we ________ be too hardworking before the exams.A．mustn’t B．shouldn’t C．needn’t D．can’t9．Hurry up, or we ________ miss the beginning of the film.A．should B．must C．may D．have to10．—Where is Tom? I am considering ________ him about the result of the exam.