【正文】 at the moment.A．has B．had C．is having D．will have11．—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 using12．—Candy, could you please help me do the dishes?—Sorry, Mom. I ________ my homework.A．do B．did C．a(chǎn)m doing D．have done13．You’d better not disturb Kathy now as she ________ her speech for tomorrow’s meeting.A．is preparing B．will prepare C．was preparing D．has prepared14．— 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 worn15．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 off16．—Yesterday I received a letter from .—You did? I hear he________for America next year.A．has left B．leaves C．left D．is leaving17．—Mary, let39。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?？疾閯?dòng)詞時(shí)態(tài)?？疾閯?dòng)詞時(shí)態(tài)。故選B?？疾閯?dòng)詞時(shí)態(tài)。考查動(dòng)詞時(shí)態(tài)。根據(jù)句意問(wèn)句詢問(wèn)媽媽現(xiàn)在在哪里，可知是現(xiàn)在進(jìn)行時(shí)，表示媽媽正在做飯。3．D【詳解】句意：貝蒂不能參加我們的比賽。考查現(xiàn)在進(jìn)行時(shí)。她正在打掃教室。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)語(yǔ)境可知，貝蒂不能來(lái)的原因是她正在打掃教室，故句子應(yīng)用現(xiàn)在進(jìn)行時(shí)，其構(gòu)成是am/is/are doing。4．C【詳解】句意：聽(tīng)!鳥(niǎo)兒在窗外的樹(shù)上快樂(lè)地歌唱。句中“Listen”是現(xiàn)在進(jìn)行時(shí)態(tài)的標(biāo)志詞，其結(jié)構(gòu)為am/is/are+動(dòng)詞現(xiàn)在分詞，主語(yǔ)“The birds”是復(fù)數(shù)，be動(dòng)詞解析：C【詳解】句意：聽(tīng)!鳥(niǎo)兒在窗外的樹(shù)上快樂(lè)地歌唱。句中“Listen”是現(xiàn)在進(jìn)行時(shí)態(tài)的標(biāo)志詞，其結(jié)構(gòu)為am/is/are+動(dòng)詞現(xiàn)在分詞，主語(yǔ)“The birds”是復(fù)數(shù)，be動(dòng)詞用are，故選C?？疾闀r(shí)態(tài)?？疾闀r(shí)態(tài)。6．D【詳解】句意：聽(tīng)！這個(gè)男孩又在彈鋼琴了。plays動(dòng)詞第三人稱(chēng)單數(shù)形式；played表一般過(guò)去時(shí)；will play表一般將來(lái)時(shí)；is playing表現(xiàn)在進(jìn)行時(shí)?？疾楝F(xiàn)在進(jìn)行時(shí)。根據(jù)句中“Listen”提示，動(dòng)作正在發(fā)生，故應(yīng)用現(xiàn)在進(jìn)行時(shí)。7．B【詳解】句意：——約翰在哪里？——他在廚房里。考查現(xiàn)在進(jìn)行時(shí)。他正在洗碗。will wash動(dòng)詞的一般將來(lái)時(shí)形式；is washing動(dòng)詞的現(xiàn)在進(jìn)行時(shí)形式；washes動(dòng)詞的三單形式；washed動(dòng)詞的過(guò)去式。故選B。考查時(shí)態(tài)。考查時(shí)態(tài)。故選A?？疾閯?dòng)詞時(shí)態(tài)?？疾閯?dòng)詞時(shí)態(tài)。10．C【詳解】句意：——我能和布朗先生通電話嗎？——很抱歉，他現(xiàn)在正在辦公室召開(kāi)重要的會(huì)議。根據(jù)語(yǔ)境及“at the moment”可知，打來(lái)電話的時(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嗎？——很抱歉，他現(xiàn)在正在辦公室召開(kāi)重要的會(huì)議。根據(jù)語(yǔ)境及“at the moment”可知，打來(lái)電話的時(shí)候，布朗先生正在開(kāi)會(huì)，時(shí)態(tài)用現(xiàn)在進(jìn)行時(shí)，結(jié)構(gòu)為am/is/are doing。故選C。我稍后給你。根據(jù)“Sorry...”及“I will give it to you later.”可知，抱解析：B【詳解】句意：——杰克，你能把你的照相機(jī)借給我嗎？——抱歉，我正在用?？疾閯?dòng)詞時(shí)態(tài)。由此可推斷我正在用，稍后借給你，符合語(yǔ)境。故選B。我在做作業(yè)。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。我在做作業(yè)。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。13．A【詳解】句意：你最好現(xiàn)在不要打擾凱西，因?yàn)樗跒槊魈斓臅?huì)議準(zhǔn)備演講。prepare準(zhǔn)備；is preparing現(xiàn)在進(jìn)行時(shí)；will prepare一般將來(lái)時(shí)；was prepa解析：A【詳解】句意：你最好現(xiàn)在不要打擾凱西，因?yàn)樗跒槊魈斓臅?huì)議準(zhǔn)備演講。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)。14．B【詳解】句意：——Lena，我想今天早上你很匆忙。——哦，天吶！我馬上把它換過(guò)來(lái)。wear穿；根據(jù)“I’ll have it changed immediately解析：B【詳解】句意：——Lena，我想今天早上你很匆忙?！叮靺?！我馬上把它換過(guò)來(lái)。wear穿；根據(jù)“I’ll have it changed immediately”可知在說(shuō)話的時(shí)候“毛衣穿反”這個(gè)動(dòng)作正在進(jìn)行，用現(xiàn)在進(jìn)行時(shí)，結(jié)構(gòu)是：am/is/are + doing；主語(yǔ)是“You”，be動(dòng)詞用are。15．B【詳解】句意：女士們，先生們，請(qǐng)留在座位上，系好安全帶，請(qǐng)將座椅靠背調(diào)整好?？疾闀r(shí)態(tài)。飛機(jī)正在起飛。takes off動(dòng)詞三單；is taking