【正文】 ?？疾閯釉~時態(tài)。工人們正在修路。考查動詞時態(tài)。考查動詞時態(tài)。now現(xiàn)在，是現(xiàn)在進行時的標志，需用be doing結(jié)構(gòu)；主語students復數(shù)人稱，be動詞用are，故選C。now現(xiàn)在，是現(xiàn)在進行時的標志，需用be doing結(jié)構(gòu)；主語students復數(shù)人稱，be動詞用are，故選C。故選C。read讀書，原形；reads讀書，第三人稱單數(shù)； is reading 正在讀書，現(xiàn)在進行時；was reading正在讀書，過去進行時。read讀書，原形；reads讀書，第三人稱單數(shù)； is reading 正在讀書，現(xiàn)在進行解析：C【詳解】句意：——你好。19．C【詳解】句意：——你好。waters一般現(xiàn)在時；is watering現(xiàn)在進行時；watered一般過去時；has watered現(xiàn)在完成時。18．B【詳解】句意：——湯姆，爸爸在哪兒？ ——喔，他正在花園里的澆花?？疾闀r態(tài)?？疾闀r態(tài)。故選C。我在商店里買一些零食。我在商店里買一些零食?？疾楝F(xiàn)在進行時。15．D【詳解】句意：聽！有人正在旁邊的房間里唱歌。takes off動詞三單；is taking off現(xiàn)在進行時；has taken of解析：B【詳解】句意：女士們，先生們，請留在座位上，系好安全帶，請將座椅靠背調(diào)整好。故選B。你的毛衣穿反了。你的毛衣穿反了?？疾閯釉~時態(tài)。故選A?？疾楝F(xiàn)在進行時的用法。 考查現(xiàn)在進行時。故選C。根據(jù)前句“Not now”語境可知，后句的動作正在進行，應用現(xiàn)在進行時，構(gòu)成解析：C【詳解】句意：——去看電影怎么樣？有部叫《嗨，媽媽》的新電影。根據(jù)“Tony, hurry up! We…for you now.”可知，此處強調(diào)動作正在發(fā)生，用現(xiàn)在進行時，故選D?？疾楝F(xiàn)在進行時。根據(jù)前句“The noise es from the boys.”語境可推知，后句中動作正在進行，應用現(xiàn)在進行時，構(gòu)成形式為be doing；主語“They”是復數(shù)形式，be用are；have的現(xiàn)在分詞是having?？疾閯釉~時態(tài)。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)應為現(xiàn)在進行時。6．D【詳解】句意：我不能把我的英語書借給你，因為這些天我在用它?？疾闀r態(tài)?？疾闀r態(tài)。故選C。故選C。故選B。 ——他正在為下周舉行的英語演講比賽做準備。 ——他正在為下周舉行的英語演講比賽做準備。——沒問題。——沒問題。s go to the cinema. There’s a new movie called Avengers IV. —Not now, I _____________ my brother David with his math.A．help B．helped C．a(chǎn)m helping D．have helped18．—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．Look, many people ________ in the park.A．dance B．danced C．a(chǎn)re dancing D．will dance4．—What’s that noise, Mike?—My little sister ________ with her toy car now.A．plays B．played C．will play D．is playing5．—Where is your father, Lily?—He ________ in the kitchen.A．cooked B．cooks C．will cook D．is cooking6．I can’t lend you my English book, because I _______ it these days.A．use B．have used C．used D．a(chǎn)m using7．The noise es from the boys. They _______ a party.A．have B．a(chǎn)re having C．will have D．have had8．—Tony, hurry up! We ________ for you now.—Just one minute.A．wait B．waited C．have waited D．a(chǎn)re waiting9．—What about going to the cinema? There’s a new movie called Hi, Mom.—Not now, I ________ my brother Tony with his English.A．help B．helped C．a(chǎn)m helping D．have helped10．— What’s that noise, Sam?— My little brother ________ his toy car.A．played B．is playing C．plays D．was playing11．—Can Peter play games with us, Mrs. Hawking?—Wait a minute. He ________ a shower.A．is taking B．taken C．took D．was taking12．—May I use your puter? —Sorry, I ________ on it.A．work B．worked C．have worked D．a(chǎn)m working13．— Lena, I guess you were in a hurry this morning. You ________ your sweater inside out.— Oh my god, I’ll have it changed immediately.A．wore B．a(chǎn)re wearing C．were wearing D．have worn14．Ladies and gentlemen, please remain in your seats, fasten your seat belt and bring your seat back. The plane________.A．takes off B．is taking off C．has taken off D．took off15．Listen! Som