【正文】 tter __________ hard from now on, __________ you will fail the exam.A．work。 or C．working。 or9．—The high school entrance examination is ing!— Yes, our teacher tells us we ________ be too careful while taking exams.A．mustn’t B．shouldn’t C．needn’t D．can’t10．It’s amazing that the pen ________turn voice into text with few mistakes.A．can B．must C．may D．need11．—Mum, why do I have to wear a mask before entering the supermarket?—For your health and safety, you ________ be too careful.A．shouldn’t B．can’t C．mustn’t D．needn’t12．The boy is very brave．I ________ he ________ the tall tree．A．dare say。 dare climbingC．dare saying。 dares climbed13．—The high school entrance examination is ing!—Yes, our teacher tells us we _______ be too careful while taking exams．A．mustn39。t C．needn39。t14．Will you be back early this evening?Yes, but I ________ be a little late. Our boss sometimes has extra work for us.A．may B．must C．need D．will15．You ______ pay too much attention to your pronunciation, as it is so important in the oral（口頭的） test.A．shouldn’t B．mustn’t C．can’t D．needn’t16．—Shall we go camping this summer holiday?—Nothing________be better.A．should B．could C．must D．may17．—Would you please________in that way? That’s not safe!—Sorry. I won’t do it any more.A．not driving B．not to drive C．no driving D．not drive18．— Ready? Let’s get started, Martin.— Swimming? I just ________ hold B．gathering。 holding D．to gather。考查情態(tài)動詞。t不應該；can39。t不需要；mustn39。根據(jù)句意可知，網(wǎng)上購物的最大優(yōu)點是不需要花很多時間逛店。t”表示“不需要”，故選C。汽車可能撞到你。need需要；may可能；should應該；must一定。故選B?！玫摹？疾榍閼B(tài)動詞辨析。根據(jù)前句“Be careful!”可推知，應是說火有時候會很危險，故情態(tài)動詞應用can。4．D解析：D【詳解】句意：——我的車今天能修好嗎？——應該能，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應當，應該，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。故選D。這是交通規(guī)則。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，每個人都必須要遵守交通規(guī)則，應用have to，故選C?！獩]問題。Could能、會（用在問句中表示委婉語氣）；Should應該；Need需要；Must必須。故選A?？疾榍閼B(tài)動詞辨析。根據(jù)but轉(zhuǎn)折可知有規(guī)律的鍛煉才對身體有幫助，故用must表示一定，必須。8．D解析：D【詳解】句意：你最好從現(xiàn)在開始努力學習，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。考查情態(tài)動詞。“can’t be too +adj.”意為“再怎么樣也不為過”，結(jié)合語境，故選D?？疾榍閼B(tài)動詞詞義辨析。此句是說這支筆能夠把聲音轉(zhuǎn)換成文字，表示一種能力，應用can，故選A?？疾榍閼B(tài)動詞辨析。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”。12．A解析：A【解析】句意“這個小男孩非常的勇敢，我敢說，他敢爬上那棵高的樹”。做情態(tài)動詞時，無人稱與數(shù)的變化，且空后用動詞原形；做實意動詞時，有人稱和數(shù)的變化，用dare to do sth。第二空即可