【正文】 necessary for me to go shopping with a mask on?—I’m afraid you ________ in public. It is not only to protect yourself but also to protect others.A．must B．should C．can D．need30．— Excuse me. I haven’t finished reading the book yet. May I keep it a bit longer?— Sorry, you ________. You must return it on time.A．needn’t B．can’t C．won’t D．shouldn’t31．A hardworking man ________ bee a great scientist, but a great scientist ________ be a hardworking man.A．can’t。 must C．can’t。 can32．You’ve got an A in the maths test again. You ________ be good at it.A．can B．may C．must D．should33．Mr. Black ________ be at home now. He went abroad on vacation last Friday.A．can’t B．mustn’t C．needn’t D．shouldn’t34．— The sandstorm in Beijing is so serious this year.— Yes, I wonder when we ________ worry about the air we breathe.A．can’t B．mustn’t C．needn’t D．shouldn’t35．For the safety of the passengers, objects like guns ________ be carried on board.A．may not B．needn’t C．might not D．mustn’t36．—Mum, I bought some strawberries on my way home.—Oh, you’re so sweet. But the strawberries ________ be put into the fridge for freshness.A．must B．can C．may D．need37．— What do you think of the show yesterday?— Some of them were really good but others ________ be better.A．will B．must C．need D．can38．—In China, many students have to stay up late to do their homework.—No worries. The government has realized the problem. I’m sure there ________ be good news soon.A．can B．should C．must D．need39．—I don’t care what people think.—Well, you _______ . Some opinions are worth weighing.A．should B．might C．could D．would40．—Seventy dollars for such a dress! You ________ be joking!—I’m serious. It’s made of silk from Hangzhou.A．must B．need C．will D．can【參考答案】一、選擇題1．B解析：B【詳解】句意：——湯姆在哪里？我正在考慮告訴他考試的結(jié)果。你不必?？疾榉侵^語動詞和情態(tài)動詞。t不可能；needn39。t禁止；shouldn39。consider doing ，第一空用telling；再由“He has known it already.”可知他已經(jīng)知道考試結(jié)果，不必再告訴他，第二空用needn39。故選B?？疾榍閼B(tài)動詞。3．C解析：C【詳解】句意：——誰在隔壁唱歌？聽起來像是一個年輕女孩的聲音。但是她很少唱英文歌。need需要；must一定；may可能；can能，會；表示推測時，常用于否定句和疑問句中。4．C解析：C【詳解】句意：快點，否則我們可能會錯過電影的開頭。should應(yīng)該；must必須；may可能；have to不得不。故選C。你可以等好點再去。mustn’t禁止，不要；needn’t不必，沒有必要。故選B。——不，你不能這樣，你沒有看到是紅燈嗎？考查情態(tài)動詞。根據(jù)下文“Don’t you see the light is still red”可知，現(xiàn)在是紅燈，禁止過馬路，故選C?？疾榍閼B(tài)動詞?！癱an’t be too +adj.”意為“再怎么樣也不為過”，結(jié)合語境，故選D?！玫摹？疾榍閼B(tài)動詞辨析。根據(jù)前句“Be careful!”可推知，應(yīng)是說火有時候會很危險，故情態(tài)動詞應(yīng)用can。9．D解析：D【詳解】句意：保護環(huán)境是非常重要的?？疾榍閼B(tài)動詞。10．D解析：D【詳解】句意：你最好從現(xiàn)在開始努力學(xué)習(xí)，否則你考試會不及格的。had better do sth最好做某事，排除BC。分析“…you will fail the exam”可知，如果不努力就會不及格，or“否則”符合語境，故選D。她正在