【正文】 句中動(dòng)作正在進(jìn)行，應(yīng)用現(xiàn)在進(jìn)行時(shí)，構(gòu)成形式為be doing；主語(yǔ)“They”是復(fù)數(shù)形式，be用are；have的現(xiàn)在分詞是having。listen to聽(tīng)；根據(jù)上文“I can’t hear you”，可知是因?yàn)檎诼?tīng)演講，所以聽(tīng)不到你說(shuō)話(huà)，需用現(xiàn)在進(jìn)行時(shí)，結(jié)構(gòu)為am/is/are doing。考查現(xiàn)在進(jìn)行時(shí)的用法。根據(jù)“Where is your mother, Kitty?”可知，此處是詢(xún)問(wèn)當(dāng)前的情況，表示正在做某事，用現(xiàn)解析：C【詳解】句意：——你媽媽在哪里，基蒂？——她正在廚房里做晚飯?？疾閯?dòng)詞時(shí)態(tài)。24．D【詳解】句意：——海倫，你在星期一的英語(yǔ)比賽怎么樣？——我不知道，我正在等結(jié)果。23．B【詳解】句意：我們組的同學(xué)正在為比賽做最后的準(zhǔn)備。考查動(dòng)詞時(shí)態(tài)。根據(jù)“Where’s Nick?”可知要回答現(xiàn)在在做什么，用現(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)為am/is/are doing?？疾闀r(shí)態(tài)。read讀書(shū)，原形；reads讀書(shū)，第三人稱(chēng)單數(shù)； is reading 正在讀書(shū)，現(xiàn)在進(jìn)行時(shí)；was reading正在讀書(shū)，過(guò)去進(jìn)行時(shí)。19．C【詳解】句意：——你好。18．C【詳解】句意：天正在變黑，我可以打開(kāi)燈嗎？考查現(xiàn)在進(jìn)行時(shí)。17．B【詳解】句意：——弗蘭克在哪兒？——他正在房間里聽(tīng)音樂(lè)。考查時(shí)態(tài)?？疾閯?dòng)詞的的時(shí)態(tài)。根據(jù)next year可知是一般將來(lái)時(shí)態(tài)?！娴?？ 我聽(tīng)說(shuō)他明年要去美國(guó)。prepare準(zhǔn)備；is preparing現(xiàn)在進(jìn)行時(shí)；will prepare一般將來(lái)時(shí)；was preparing過(guò)去進(jìn)行時(shí)；has prepared現(xiàn)在完成時(shí)；根據(jù)時(shí)間狀語(yǔ)“now”可知，句子時(shí)態(tài)采用現(xiàn)在進(jìn)行時(shí)。根據(jù)“I must leave now.”可知，我哥哥現(xiàn)在正在外面等我，時(shí)態(tài)是現(xiàn)在進(jìn)行時(shí)，結(jié)構(gòu)：am/is/are+解析：C【詳解】句意：我現(xiàn)在必須離開(kāi)了，我哥哥正在外面等我。根據(jù)語(yǔ)境可知，此時(shí)不能幫媽媽洗碗，是因?yàn)檎谧鲎鳂I(yè)，應(yīng)用現(xiàn)在進(jìn)行時(shí)，構(gòu)成形式為：be doing。解析：B【詳解】句意：——你好，我可以和吉姆講話(huà)嗎？——對(duì)不起，他正在開(kāi)一個(gè)重要的會(huì)?？疾閯?dòng)詞時(shí)態(tài)。根據(jù)語(yǔ)境及“at the moment”可知，打來(lái)電話(huà)的時(shí)候，布朗先生正在開(kāi)會(huì)，時(shí)態(tài)用現(xiàn)解析：C【詳解】句意：——我能和布朗先生通電話(huà)嗎？——很抱歉，他現(xiàn)在正在辦公室召開(kāi)重要的會(huì)議?？疾闀r(shí)態(tài)?？疾閯?dòng)詞時(shí)態(tài)。4．B【詳解】句意：——什么聲音，山姆？ ——我弟弟正在玩他的玩具車(chē)。故選B。由“I really need to go now. My children…for me at school”可知，因?yàn)楹⒆觽冋趯W(xué)校等我，所以我真得要走，故本句為現(xiàn)在進(jìn)行時(shí)態(tài)。s not at home. She___________in the library.A．read B．reads C．is reading D．was reading20．—Peter, please be quiet. Your brother ________ on the phone.—No problem.A．records B．recorded C．was recording D．is recording21．—Where’s Nick?—He ________ classes at school.A．had B．will have C．is having D．was having22．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．learn23．The students in our group ________ the final preparation for the match. We are sure to win.A．made B．a(chǎn)re making C．make D．will make24．— Helen, how was your English petition on Monday?— I have no idea, I _________ for the result. I was told it would e out in two days.A．was waiting B．waited C．will wait D．a(chǎn)m waiting25．—What is your mother doing, Linda? —She ________ dinner in the kitchen now.A．is cooking B．was cooking C．cooks D．cooking26．—Where is your mother, Kitty?—She ________ dinner in the kitchen.A．cooks B．cooked C．is cooking D．will cook27．—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 lost28．I can’t hear you. I ______ to an English speech.A．a(chǎn)m listening B．listen C．was listening29．The noise es from the boys. They _______ a party.A．have B．a(chǎn)re having C．will have D．have had30．—Tina, let’s go out for shopping.—Sorry, Amy. I __________ my homework.A．do B．a(chǎn)m doing C．did31．—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．—I can’t find David. Where is he?— He________ for tomorrow’s petition at home.A．prepares B．is preparing C．has prepared D．prepared33．—J