【正文】 t不能，表禁止。我不能很好地聽清楚發(fā)言者的話。根據(jù)“But it depends.”可知，出國(guó)深造的可能性不是很大，大概是50%左右，表示50%左右的可能性，“may”符合句意，故選C。考查情態(tài)動(dòng)詞。13．C解析：C【詳解】句意：——你決定畢業(yè)后從事教書工作了嗎？——我可能出國(guó)深造。can’t不能；mustn’t禁止；needn’t不需要；shouldn’t不應(yīng)該。12．C解析：C【詳解】句意：如果你給你媽媽買一臺(tái)掃地機(jī)器人，她就不必每天掃地了?？疾榍閼B(tài)動(dòng)詞?！?，你應(yīng)該在乎。故選A。must一定，必須；may也許；can能夠；need需要。10．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。t沒必要。t不應(yīng)該；mustn39。can39。她正在開董事局會(huì)議。may可能；can可以；have to必須；need需要；根據(jù)“must we wait until the light bees green”及“That’s the traffic rule”可知，每個(gè)人都必須要遵守交通規(guī)則，應(yīng)用have to，故選C。這是交通規(guī)則。故選D。mustn’t不能，表禁止；shouldn’t不應(yīng)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。7．D解析：D【詳解】句意：我們的化學(xué)老師總是告訴我們考試前怎樣用功都不為過(guò)。couldn’t不能，不會(huì)；wouldn’t不愿意；mustn’t禁止，不要；needn’t不需要，不必。6．C解析：C【詳解】句意：——快點(diǎn)，杰克！讓那個(gè)我們盡快地過(guò)馬路。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(guò)，“can’t...too...”表示“再……也不為過(guò)”。考查情態(tài)動(dòng)詞辨析。根據(jù)“It...be Jane. But she seldom sings English songs.”可知，此處表示不確定的推測(cè)，且是肯定句，故選C?？疾榍閼B(tài)動(dòng)詞。——可能是簡(jiǎn)。故選C。考查情態(tài)動(dòng)詞。3．C解析：C【詳解】句意：——我可以加入你的計(jì)劃嗎？——對(duì)不起，你不能。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(dòng)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。故空格處的意思是可以，能夠。can能，可以；should應(yīng)該；need需要；must必須。 can32．— Is the boy over there Tom? He often wears a jacket like that.— It _______ be him. He is absent from school today.A．needn’t B．shouldn’t C．mustn’t D．can’t33．—Shall I tell him the change of the time right now?—I’m afraid you ________, otherwise he will be late for the meeting.A．can B．may C．must D．need34．— 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’t35．Sometimes smiles ________ be false, hiding other feelings like anger, fear or worry.A．should B．would C．must D．can36．Mr. Black ________ be at home now. He went abroad on vacation last Friday.A．can’t B．mustn’t C．needn’t D．shouldn’t37．—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’t38．For the safety of the passengers, objects like guns ________ be carried on board.A．may not B．needn’t C．might not D．mustn’t39．—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．need40．— Mum, why do I have to wash hands so many times a day?—You ________ be too careful, for your health.A．can’t B．mustn’t C．may not D．needn’t【參考答案】一、選擇題1．A解析：A【詳解】句意：很多在線資源既可以供學(xué)校的老師使用，也可以供家長(zhǎng)在家使用。 must C．can’t。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