【正文】 解】句意：鍛煉是有幫助的但是它必須是有規(guī)律的鍛煉。根據(jù)主句“you will be fined according to the rules.”可知，應(yīng)是如果你一定要抽的話?？疾榍閼B(tài)動詞辨析。11．D解析：D【詳解】句意：對不起，這里不允許抽煙。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(dá)“能”幫一下嗎?？疾榍閼B(tài)動詞辨析。10．A解析：A【詳解】句意：——你能幫我一把嗎？我一個人貼不起海報。根據(jù)“It is not only to protect yourself but also to protect others.”可知在公共場合必須戴口罩?？疾榍閼B(tài)動詞。9．A解析：A【詳解】句意：——我真的有必要帶著口罩去購物嗎？——恐怕在公共場合你必須如此。根據(jù)題干“we…be too hardworking before the exams”，可知是“can’t be too +形容詞”結(jié)構(gòu)，表示“再……也不為過”?？疾榍閼B(tài)動詞辨析。故選D。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(dāng)，應(yīng)該，表示推測時，其語氣比較肯定，它通常指非?？赡艿氖?，并暗示其推測有一定的事實依據(jù)或者合乎常理。7．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。mustn’t禁止；shouldn’t不應(yīng)該；needn’t不必；can’t不能。6．D解析：D【詳解】句意：——高中入學(xué)考試快到了! ——是的，我們老師告訴我們考試時再怎么仔細(xì)都不為過。根據(jù)“For your health and safety, you...be too careful.”可知，為了你的健康，你再怎么小心也不為過，“can’t...too...”表示“再……也不為過”。考查情態(tài)動詞辨析。故選B。mustn’t禁止，不要；needn’t不必，沒有必要。你可以等好點再去。故選C。should應(yīng)該；must必須；may可能；have to不得不。3．C解析：C【詳解】句意：快點，否則我們可能會錯過電影的開頭。由“Mary has lent us some money”可知，瑪麗已經(jīng)借給我們錢了，所以我們不必再去銀行了?？疾榍閼B(tài)動詞辨析。2．B解析：B【詳解】句意：使我高興的是，我們不必去銀行了。might也許；must必須；mustn’t禁止；may也許。他在這里已經(jīng)三天了。 to mend36．You ________ be careful with the camera. It costs!A．can B．will C．should D．may37．—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’t38．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．should39．—Do we have to finish this today?—Yes, you ________ . Today is the last day.A．would B．may C．can D．must40．Sometimes smiles ________ be false, hiding other feelings like anger, fear or worry.A．should B．would C．must D．can【參考答案】一、選擇題1．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。 to be mendedC．don’t need。ve discussed every detail of this plan and have got everything ready. But still something ________ go wrong. We still have to be very careful.A．must B．should C．would D．may32．—Could you tell me how to renew the library books?—With pleasure. You ________ e to our desk every time. It’s easier to renew them online.A．can’t B．mustn’t C．needn’t D．shouldn’t33．—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．need34．You ________ drive after drinking alcohol(酒). It’s against the law.A．mustn’t B．needn’t C．couldn’t D．wouldn’t35．—I think they are enough. We ________ make so man