【正文】 知正在做最后的準(zhǔn)備，用現(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)為am/is/are d解析：B【詳解】句意：我們組的同學(xué)正在為比賽做最后的準(zhǔn)備。故選A。根據(jù)“where is your father now”可知是問父親現(xiàn)在正在解析：A【詳解】句意：——麗麗，我們的父親現(xiàn)在在哪里？去叫他來吃午飯。故填B。根據(jù)前句“The noise es from the boys.”語境可推知，后句中動(dòng)作正在進(jìn)行，應(yīng)用現(xiàn)在進(jìn)行時(shí)，構(gòu)成形式解析：B【詳解】句意：噪音來自那群男孩。故選C。根據(jù)題解析：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(shí)。故選B?？疾閯?dòng)詞的時(shí)態(tài)。結(jié)合語境及選項(xiàng)，故選C?？疾橐话銓頃r(shí)?？疾橐话銓頃r(shí)。根據(jù)語境及wait a moment可知，瑪麗在電影開始時(shí)正在商店買零食，故此處應(yīng)為現(xiàn)在進(jìn)行時(shí)?！纫幌隆！纫幌隆？疾楝F(xiàn)在進(jìn)行時(shí)。他在哪里？——哦，他在圖書館學(xué)習(xí)?？疾閯?dòng)詞時(shí)態(tài)?？疾閯?dòng)詞時(shí)態(tài)。根據(jù)“Peter, please be quiet.”可知，現(xiàn)在要保持安靜，此處表示你哥哥現(xiàn)在正在錄音，因此用現(xiàn)在進(jìn)行時(shí)am/is/are+doing結(jié)構(gòu)，故選D。根據(jù)“Peter, please be quiet.”可知，現(xiàn)在要保持安靜，此處表示你哥哥現(xiàn)在正在錄音，因此用現(xiàn)在解析：D【詳解】句意：——彼得，請(qǐng)安靜。13．D【詳解】句意：——彼得，請(qǐng)安靜。touch摸，主語they是復(fù)數(shù)人稱，解析：D【詳解】句意：——軍官們?cè)谀膬?？——瞧！他們正在宮殿里摸象。故選D。根據(jù)“Sorry, you can’t take the eraser away, Tony.”可知，說這句話的同時(shí)，我解析：D【詳解】句意：對(duì)不起，托尼你不能拿走橡皮。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D?？疾楝F(xiàn)在進(jìn)行時(shí)。根據(jù)語境可知，為了讓對(duì)方安靜下來，此句應(yīng)強(qiáng)調(diào)學(xué)生現(xiàn)在正在考試這個(gè)事情；強(qiáng)調(diào)此刻正在進(jìn)行的動(dòng)作，時(shí)態(tài)應(yīng)用現(xiàn)在進(jìn)行時(shí)，其構(gòu)成為“be doing”。9．B【詳解】句意：安靜點(diǎn)！學(xué)生們正在參加英語考試。她正在打掃教室。8．D【詳解】句意：貝蒂不能參加我們的比賽。考查動(dòng)詞時(shí)態(tài)?？疾闀r(shí)態(tài)辨析?？疾闀r(shí)態(tài)辨析?？疾閯?dòng)詞時(shí)態(tài)和the number of的用法。故選B?？疾閯?dòng)詞時(shí)態(tài)。我稍后給你?？疾閯?dòng)詞時(shí)態(tài)辨析?！玫模瑡寢?。選項(xiàng)A為一般將來時(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為過去進(jìn)行時(shí)。選項(xiàng)A為一般將來時(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為過去進(jìn)行時(shí)。now現(xiàn)在，是現(xiàn)在進(jìn)行時(shí)的標(biāo)志，需用be doing結(jié)構(gòu)；主語students復(fù)數(shù)人稱，be動(dòng)詞用are，故選C。now現(xiàn)在，是現(xiàn)在進(jìn)行時(shí)的標(biāo)志，需用be doing結(jié)構(gòu)；主語students復(fù)數(shù)人稱，be動(dòng)詞用are，故選C。t find Mike in the classroom. Where is he?—Oh, he ________ in the library.A．was studying B．studied C．is studying D．studies16．— Hurry up, Mary. The movie has already been on for ten minutes. —Wait a moment. I ________ some snacks in a shop.A．buy B．bought C．a(chǎn)m buying D．have bought17．—I _____to Beijing tomorrow. —Have a good trip!A．flies B．fly C．a(chǎn)m flying D．flew18．—Tom, where39。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．—Maggie, could you help pick up the phone? It ________.—OK, Mum.A．rings B．rang C．will ring D．is ringing4．—Jack, can you lend me your camera?—Sorry, I________ it. I will give it to you later.A．used B．a(chǎn)m using C．have used D．was using5．The zoo keeper is worried because the number of visitors ________ smaller and smaller.A．bee B．a(chǎn)re being C．is being D．have bee6．Look, many people ________ in the park.A．dance B．danced C．a(chǎn)re dancing D．will dance7．—Hello! May I speak to Tom?—One moment! He _______ an .A．is sending B．sent C．sends D．was sending8．Betty can’t join us in the game. She ________ the classroom.A．has cleaned B．was cleaning C．has cleaned D．is cleaning9．Be quiet! The students ________ an English exam.A．take B．a(chǎn)re taking C．took D．have made10．—Tony, hurry up! We ________ for you now.—Just one minute.A．wait B．waited C．have waited D．a(chǎn)re waiting11．Sorry, you can’t take the eraser away, Tony. I ________ it.A．have used B．used C．was using D．a(chǎn)m using12．— Where are the officers? — Look!