【正文】 用現(xiàn)在進(jìn)行時(shí)，表示現(xiàn)在正在進(jìn)行的動(dòng)作，結(jié)構(gòu)為am/is/are doing，故選C。你在忙什么？——我正在做一個(gè)關(guān)于家族史的項(xiàng)目?？疾閯?dòng)詞時(shí)態(tài)。8．C【詳解】句意：——嗨，大明。根據(jù)“What’s that noise, Sam?”判斷，此處應(yīng)該用現(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)是：be（am/is/are）+動(dòng)詞的現(xiàn)在分詞。根據(jù)“What’s that noise, Sam?”判斷，此處應(yīng)該用現(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)是：be（am/解析：B【詳解】句意：——什么聲音，山姆？ ——我弟弟正在玩他的玩具車。7．B【詳解】句意：——什么聲音，山姆？ ——我弟弟正在玩他的玩具車?？疾闀r(shí)態(tài)?？疾闀r(shí)態(tài)。故選D?？疾楝F(xiàn)在進(jìn)行時(shí)。根據(jù)上句“Betty can’t join us in the game”，此處指的是現(xiàn)在發(fā)生的事，故應(yīng)用現(xiàn)在時(shí)，且根據(jù)解析：D【詳解】句意：貝蒂不能參加我們的比賽。她正在打掃教室。故選D?？疾闀r(shí)態(tài)?？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)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，所以用解析：A【詳解】句意：——你好！我可以和湯姆講話嗎？——等一下，他正在發(fā)電子郵件。3．A【詳解】句意：——你好！我可以和湯姆講話嗎？——等一下，他正在發(fā)電子郵件。根據(jù)題干中“Shall I turn on the light?”可知是說(shuō)話時(shí)天正在變黑，用現(xiàn)在進(jìn)行時(shí)表示動(dòng)態(tài)的變化。get變得。gets動(dòng)詞的第三人稱單數(shù)；got動(dòng)詞的過(guò)去式；is getting現(xiàn)在進(jìn)行時(shí)；was getting過(guò)去進(jìn)行時(shí)。2．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)。根據(jù)句中“Now”及句意可知，句中動(dòng)作表示正在進(jìn)行，表達(dá)“正在播放”應(yīng)該用現(xiàn)在進(jìn)行時(shí)，其構(gòu)成是am/is/are doing。根據(jù)句中“Now”及句意可知，句中動(dòng)作表示正在進(jìn)行，表達(dá)“正在播放”應(yīng)該用現(xiàn)在進(jìn)行時(shí)，其構(gòu)成是am/is解析：B【詳解】句意：現(xiàn)在，位于森林路的ABC電影院正在放映老電影《羅馬假日》。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．Grandma ________ dinner. Let’s go and help her.A．is making B．makes C．made D．was making21．Don’t make any noise, Jim! Your little sister ________ now.A．sleeps B．slept C．is sleeping D．will sleep22．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 make23．You’d better not go this way. The workers _________ the road. A．have repaired B．a(chǎn)re repairing C．repaired D．will repair24．— 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．My father ________ Beijing next week.A．leaves for B．is leaving for C．left D．leaves26．—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 lost27．I can’t hear you. I ______ to an English speech.A．a(chǎn)m listening B．listen C．was listening28．—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．Be quiet. Your brother ________ classes online.A．has B．is having C．will have D．had31．—Has your aunt finished writing her novel?—Not yet. She ________ it these days.A．wrote B．writes C．is writing D．will write32．— Dad, I can’t work out this math problem. Can you give me a hand?— Wait a moment. I ________ on the phone.A．a(chǎn)m talking B．will talk C．was talking D．have talked33．—Ethan, let’s go to play basketball, shall we?—Sorry, I can’t. I ________Yao Ming’s game. Would you mind going later