【正文】 —他在家準(zhǔn)備明天的比賽。根據(jù)句中“Look!”提示，此處表示正在發(fā)生的動(dòng)作，故句子應(yīng)用現(xiàn)在進(jìn)行時(shí)?？疾闀r(shí)態(tài)。根據(jù)前面的“One moment!”可知，判斷設(shè)空處的動(dòng)作“發(fā)送電子郵件”在說(shuō)話時(shí)刻正在進(jìn)行著，所以用現(xiàn)在進(jìn)行時(shí)；現(xiàn)在進(jìn)行時(shí)的構(gòu)成是：主語(yǔ)+am/is/are+動(dòng)詞的現(xiàn)在分詞；主語(yǔ)是He，be動(dòng)詞用is，send的現(xiàn)在分詞是sending；故選A。根據(jù)“We…ground as a leader解析：A【詳解】句意：——你覺(jué)得你的公司怎么樣？——有點(diǎn)擔(dān)心。27．C【詳解】句意：——你媽媽在哪里，基蒂？——她正在廚房里做晚飯。故選B。我到處找不到戴維。工人們正在修路。“我”正在廚房學(xué)習(xí)如何包餃子，沒(méi)時(shí)間接電話，所以請(qǐng)求喬幫忙接電話；某一時(shí)刻正在做某事，應(yīng)為進(jìn)行時(shí)態(tài)。考查現(xiàn)在進(jìn)行時(shí)。你介意晚一點(diǎn)去嗎？考查現(xiàn)在進(jìn)行時(shí)?？疾閯?dòng)詞時(shí)態(tài)辨析?？疾閯?dòng)詞時(shí)態(tài)。故選B。結(jié)合語(yǔ)境可知，母親還沒(méi)有睡覺(jué)，是因?yàn)樗诘任礆w的哥哥，故句子應(yīng)用現(xiàn)在進(jìn)行時(shí)，故選B。為什么你還不睡？ ——你哥哥還沒(méi)有回來(lái)。buy一般現(xiàn)在時(shí)；bought一般過(guò)去時(shí)；am buying現(xiàn)在進(jìn)行時(shí)；have boug解析：C【詳解】句意：——快點(diǎn)，瑪麗，電影已經(jīng)開(kāi)始十分鐘了?？疾闀r(shí)態(tài)?？疾闀r(shí)態(tài)?？疾闀r(shí)態(tài)。考查動(dòng)詞時(shí)態(tài)。11．A【詳解】句意：——霍金夫人，彼得可以和我們一起玩游戲嗎？ ——等一會(huì)兒，他正在洗澡。根據(jù)前句“The zoo keeper is worried”的語(yǔ)境可知，后句動(dòng)作應(yīng)是正在進(jìn)行，故時(shí)態(tài)應(yīng)用現(xiàn)在進(jìn)行時(shí)，構(gòu)成形式為：be doing，故排除A、D項(xiàng)；the number of，表示“……的數(shù)量”，作主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞用單數(shù)形式，故排除B項(xiàng)。根據(jù)“Tony, hurry up! We…for you now.”可知，此處強(qiáng)調(diào)動(dòng)作正在發(fā)生，用現(xiàn)在進(jìn)行時(shí)，故選解析：D【詳解】句意：——托尼，快點(diǎn)！我們現(xiàn)在在等你?？疾闀r(shí)態(tài)?？疾楝F(xiàn)在進(jìn)行時(shí)。5．C【詳解】句意：我現(xiàn)在必須離開(kāi)了，我哥哥正在外面等我?？疾楝F(xiàn)在進(jìn)行時(shí)。選項(xiàng)A為一般將來(lái)時(shí)；選項(xiàng)B為現(xiàn)在進(jìn)行時(shí)；選項(xiàng)C為現(xiàn)在完成時(shí)；選項(xiàng)D為過(guò)去進(jìn)行時(shí)。根據(jù)“Tom, please give me a hand in moving the piano.”及語(yǔ)境可知，此處回答的動(dòng)作是現(xiàn)在正在進(jìn)行的，應(yīng)用現(xiàn)在進(jìn)行時(shí)，結(jié)構(gòu)是“be+doing”，故選C。s not at home. She___________in the library.A．read B．reads C．is reading D．was reading20．Be quiet, please. They _________ a meeting now.A．have B．had C．a(chǎn)re having D．were having21．—Ethan, let’s go to play basketball, shall we?—Sorry, I can’t. I ________Yao Ming’s game. Would you mind going later?A．watch B．have watched C．a(chǎn)m watching D．was watching22．—Has your aunt finished writing her novel?—Not yet. She ________ it these days.A．wrote B．writes C．is writing D．will write23．Joe, answer the phone for me. I ________ how to make dumplings in the kitchen.A．learned B．a(chǎn)m learning C．have learned D．learn24．You had better not go this way. The workers _________ the road.A．have repaired B．a(chǎn)re repairing C．repaired D．will repair25．— Hi, Tom. I can’t find David anywhere. Do you know where he is?—Oh, he ________ for tomorrow’s exam at home.A．prepares B．is preparing C．has prepared D．prepared26．—What is your mother doing, Linda? —She ________ dinner in the kitchen now.A．is cooking B．was cooking C．cooks D．cooking27．—Where is your mother, Kitty?—She ________ dinner in the kitchen.A．cooks B．cooked C．is cooking D．will cook28．—How do you find your pany?—A little worried. We ________ ground as a leader in the field of IT with the others speeding up development.A．a(chǎn)re losing B．were losing C．lost D．have lost29．—Hello! May I speak to Tom?—One moment! He _______ an .A．is sending B．sent C．sends D．was sending30．Don’t make any noise, Jim! Your little sister ________ now.A．sleeps B．slept C．is sleeping D．will sleep31．—Mary, may I use your ipad for an hour?—Sorry. I ________ on it.A．work B．a(chǎn)m working C．have worked D．worked32．— Where is Tom?— Look! He ________with the teacher over there.A．talk B．talks C．talked D．is talking33．—I can’t find David. Where is he?— He________ for tomorrow’s petition at home.A．prepares B．is preparing C．has prepared D．prepared34．—Jane,where are you?—Dad,I________ the car in the driveway. It is really d