【正文】 一些維修工作。26．A【詳解】句意：我聽不見你說話。根據(jù)“You’d better not go this way”可知，工人們正在修路，所以建議不要走這邊，此處使用現(xiàn)在進(jìn)行時(shí)，結(jié)構(gòu)為be doing。根據(jù)“We are sure to win.”可知正在做最后的準(zhǔn)備，用現(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)為am/is/are doing?？疾楝F(xiàn)在進(jìn)行時(shí)。prepares一般現(xiàn)在時(shí)(主語是三單形式) ；is preparing現(xiàn)在進(jìn)行時(shí)；has prepared現(xiàn)在完成時(shí)；prepared一般過去時(shí)。解析：C【詳解】句意：請(qǐng)保持安靜?？疾闀r(shí)態(tài)。故選B。——等一會(huì)，我正在讀我的郵件。故選D。飛機(jī)正在起飛。根據(jù)答語“Sorry, I… on it.”的語境可推斷出，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 do解析：D【詳解】句意：——我可以用你的電腦嗎？——對(duì)不起，我正在用它工作?？疾闀r(shí)態(tài)。look“看”用于提醒，后面的句子需用現(xiàn)在進(jìn)行時(shí)“be doing”結(jié)構(gòu)?？疾楝F(xiàn)在進(jìn)行時(shí)。故選B?？疾閯?dòng)詞時(shí)態(tài)和the number of的用法?？疾楝F(xiàn)在進(jìn)行時(shí)。7．A【詳解】句意：——湯姆，你的小妹妹在哪里?——她現(xiàn)在正在后院玩。根據(jù)“now”可知要用現(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)為be doing。plays動(dòng)詞第三人稱單數(shù)形式；played表一般過去時(shí)；will play表一般將來時(shí)；is playing表現(xiàn)在進(jìn)行時(shí)。故選D。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)。根據(jù)“Tom, please give me a hand in moving the piano.”及語境可知，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 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 helped20．Be quiet, please. They _________ a meeting now.A．have B．had C．a(chǎn)re having D．were having21．—I can’t find David. Where is he?— He________ for tomorrow’s petition at home.A．prepares B．is preparing C．has prepared D．prepared22．—Has your aunt finished writing her novel?—Not yet. She ________ it these days.A．wrote B．writes C．is writing D．will write23．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．You had better not go this way. The workers _________ the road.A．have repaired B．a(chǎn)re repairing C．repaired D．will repair25．My father ________ Beijing next week.A．leaves for B．is leaving for C．left D．leaves26．I can’t hear you. I ______ to an English speech.A．a(chǎn)m listening B．listen C．was listening27．Xifeng Street is closed today because workers _______ some repairs.A．make B．made C．a(chǎn)re making D．were making28．—Look out! Something ________ down from the tree.—Dear me! It’s too dangerous.A．falls B．fell C．is falling D．was falling29．Look, many people ________ in the park.A．dance B．danced C．a(chǎn)re dancing D．will dance30．—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．My grandma ________ the old photos. There is a big smile on her face.A．enjoys B．enjoyed C．will enjoy D．is enjoying33．Many children in South Sudan ________ the trouble of hunger at the moment.A．face B．faces C．is facing D．a(chǎn)re facing34．Mum ________ fish in the kitchen. It smells so good.A．cooks B．is cooking C．was cooking D．will cook35．—Bob, can you take the dog for a walk?—Sorry, Dad. I ________ an online class.A．take B．took C．a(chǎn)m taking D．have taken36．It’s 4 o’clock in the afternoon. Ms. Green ________ afternoon tea with her friends.A．has B．is having C．had D．was having37．—John, how was your interview on Monday?—No idea. I for the result. I was told it woul