【正文】 解析：C【詳解】句意：——尼克在哪里？——他正在學(xué)校上課。考查現(xiàn)在進(jìn)行時。故選A?？疾楝F(xiàn)在進(jìn)行時的用法?？疾楝F(xiàn)在進(jìn)行時?？疾閯釉~時態(tài)辨析。考查時態(tài)。我正在澆花。31．C【詳解】句意：——你姑姑寫完小說了嗎?？——現(xiàn)在還沒有。根據(jù)“I can’t lend you my English book...”可知，我不能把我的英語書借給你，說明這些天我在用它，符合語境；所以句子時態(tài)應(yīng)為現(xiàn)在進(jìn)行時。解析：D【詳解】句意：——湯姆在哪里？ ——看！他正在那邊和老師說話。我正在廚房煮咖啡。27．A【詳解】句意：——蒂娜，電視節(jié)目已經(jīng)開始了?？疾楝F(xiàn)在進(jìn)行時?？疾楝F(xiàn)在進(jìn)行時的用法。根據(jù)題干“he…for tomorrow’s exam at home解析：B【詳解】句意：——嗨，湯姆。解析：B【詳解】句意：你最好不要走這邊。根據(jù)語境可知，為了讓對方安靜下來，此句應(yīng)強調(diào)學(xué)生現(xiàn)在正在考試這個事情；強調(diào)此刻正在進(jìn)行的動作，時態(tài)應(yīng)用現(xiàn)在進(jìn)行時，其構(gòu)成為“be解析：B【詳解】句意：安靜點！學(xué)生們正在參加英語考試?？疾閯釉~時態(tài)辨析。19．B【詳解】句意：——媽媽在哪里？——她正在廚房做飯。18．C【詳解】句意：天正在變黑，我可以打開燈嗎？考查現(xiàn)在進(jìn)行時。17．B【詳解】句意：——弗蘭克在哪兒？——他正在房間里聽音樂?？疾闀r態(tài)。——真的？ 我聽說他明年要去美國。根據(jù)“Listen!”可知，本句時態(tài)是現(xiàn)在進(jìn)行時，主語“Someone”表單數(shù)，故選D。根據(jù)語境可知，此處指的應(yīng)該是正在準(zhǔn)備做某事，表示正在進(jìn)行的動作要用現(xiàn)在進(jìn)行時，結(jié)構(gòu)是“am/ is/ are doi解析：B【詳解】句意：——那個糟糕的噪音是什么？——學(xué)生們正在準(zhǔn)備聚會。12．D【詳解】句意：——我可以用你的電腦嗎？——對不起，我正在用它工作?？疾閯釉~時態(tài)。故選B?？疾楝F(xiàn)在進(jìn)行時。我在修我的車。你在忙什么？——我正在做一個關(guān)于家族史的項目。他們現(xiàn)在正在開會。5．D【詳解】句意：——托尼，快點！我們現(xiàn)在在等你。根據(jù)“He is in the kitchen.”和“now”可知，該句為現(xiàn)在進(jìn)行時，謂語結(jié)構(gòu)是：be+動詞的現(xiàn)在分詞。故選B。 ——他正在為下周舉行的英語演講比賽做準(zhǔn)備。t seen Jack for a couple of days. —He ________ for the English speaking petition which will take place next week.A．will prepare B．is preparing C．has prepared D．was preparing3．—Where is John?—He is in the kitchen. He ________ the dishes now.A．will wash B．is washing C．washes D．washed4．— Tom, where is your little sister?— She _______ in the backyard now.A．is playing B．will play C．played D．plays5．—Tony, hurry up! We ________ for you now.—Just one minute.A．wait B．waited C．have waited D．a(chǎn)re waiting6．Be quiet, please. They _________ a meeting now.A．have B．had C．a(chǎn)re having D．were having7．—Hi, Daming. What are you up to?—I ________ a project about family history.A．do B．did C．a(chǎn)m doing D．was doing8．—Tom, please give me a hand in moving the piano. —Sorry. I ________ my car.A．repair B．repaired C．a(chǎn)m repairing D．have repaired9．—Hello, may I speak to Jim?—Sorry, he ________ an important meeting now.A．has B．is having C．will have D．was having10．Excuse me. I really need to go now. My children _____________for me at school.A．a(chǎn)re waiting B．waits C．wait D．waited11．—Where is your father, Lily?—He ________ in the kitchen.A．cooked B．cooks C．will cook D．is cooking12．—May I use your puter? —Sorry, I ________ on it.A．work B．worked C．have worked D．a(chǎn)m working13．—What’s the terrible noise?—The students ________ for a party.A．have prepared B．a(chǎn)re preparing C．prepare D．will prepare14．Listen! Someone __________ in the next room.A．sings B．sang C．was singing D．is singing15．—Yesterday I received a letter from .—You did? I hear he________for America next year.A．has left B．leaves C．left D．is leaving16．—Mary, let39。prepare準(zhǔn)備；is preparing現(xiàn)在進(jìn)行時；will prepare一般將來時；was preparing過去進(jìn)行時；has prepared現(xiàn)在完成時；根據(jù)時間狀語“now”可知，句子時態(tài)采用現(xiàn)在進(jìn)行時?？疾閯釉~時態(tài)。他正在洗碗?？疾闀r態(tài)?？疾楝F(xiàn)在進(jìn)行時?？疾閯釉~時態(tài)辨析。根據(jù)“What are you up to”可知，答語要用現(xiàn)在進(jìn)行時，表示現(xiàn)在正在進(jìn)行的動作，結(jié)構(gòu)為am/is