【正文】 still red?A．couldn’t B．wouldn’t C．mustn’t D．needn’t30．—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．can31．— What is that young lady’s job?— She ________ be a nurse, I’m not sure.A．must B．may C．need D．would32．— 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’t33．— 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’t34．For the safety of the passengers, objects like guns ________ be carried on board.A．may not B．needn’t C．might not D．mustn’t35．—________ I see your ID card? We have to check your personal information. —Sure. Here you are.A．May B．Need C．Should D．Must36．You ________ drive after drinking alcohol(酒). It’s against the law.A．mustn’t B．needn’t C．couldn’t D．wouldn’t37．We teenagers ________ have dreams. With dreams and hard work, anything amazing ________ be created.A．may。 should C．should。 has to38．—Who’s singing next door? Is it Miss Wang?—It ________ be her. She’s having the board meeting.A．can’t B．shouldn’t C．mustn’t D．needn’t39．It’s of great importance to protect the environment. Each of us ________ take an active part in it.A．can B．may C．would D．should40．You ________ pay too much attention to protecting yourself if you plan to go abroad.A．mustn’t B．can’t C．shouldn’t D．needn’t【參考答案】一、選擇題1．D解析：D【詳解】句意：當你參觀博物館時，應(yīng)該注意一些說明，我們最好不違反它們?！皊ome instructions”和“pay attention to”屬于被動關(guān)系，所以第一個空用“should be paid attention to”結(jié)構(gòu)，所以排除A、B；had better not do/be意為“最好不做某事”；against“反對”，介詞，所以第二個空用動詞短語be against “反對”。2．A解析：A【詳解】句意：——準備好了嗎？我們開始吧，馬丁。考查情態(tài)動詞。根據(jù)gettoin3．D解析：D【詳解】句意：——我的車今天能修好嗎？——應(yīng)該能，先生，如果有什么問題我會打電話給你。must必須，一定，表推測時，語氣最肯定；could可能，表推測時，其意很不肯定；shall將，會；should應(yīng)當，應(yīng)該，表示推測時，其語氣比較肯定，它通常指非常可能的事，并暗示其推測有一定的事實依據(jù)或者合乎常理。故選D。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。must必須；should應(yīng)該；may可能；need需要。5．C解析：C【詳解】句意：——爸爸，我們一定要等綠燈嗎？——是的，恐怕我們必須這樣做。考查情態(tài)動詞。6．A解析：A【詳解】句意：——你能幫我一把嗎？我一個人貼不起海報?？疾榍閼B(tài)動詞辨析。根據(jù)“I can’t put up the poster by myself.”可知，此處表示請求，用委婉語氣表達“能”幫一下嗎。7．B解析：B【詳解】句意：——這周五郎朗會去藝術(shù)中心表演嗎？——是的。他在這里已經(jīng)三天了。might也許；must必須；mustn’t禁止；may也許。8．A解析：A【詳解】句意：鍛煉是有幫助的但是它必須是有規(guī)律的鍛煉。must一定，必須；may也許；can能夠；need需要。故選A。 考查情態(tài)動詞。根據(jù)“Why didn’t you tell it to me earlier?”及“I want to have my own secret.”可知，此處應(yīng)該是“我為什么應(yīng)該告訴你？”故選C?？疾榍閼B(tài)動詞和連詞辨析。and和；or否則。11．D解析：D【詳解】句意：——我們一定要今天完成嗎？——是的，你們必須?？疾榍閼B(tài)動詞辨析。根據(jù)“Today is the last day.”可知，必須今天完成，故選D。你可以在晚飯后做。needn’t不需要；mustn’t禁止；shouldn’t不應(yīng)該；can’t不能。故選A?？疾榍閼B(tài)動詞詞義辨析。根據(jù)“be used either by teachers at school