【正文】
態(tài)。——等一下。故選D。根據(jù)next year可知是一般將來時(shí)態(tài)?!娴?? 我聽說他明年要去美國(guó)。故選D。根據(jù)next year可知是一般將來時(shí)態(tài)。——真的? 我聽說他明年要去美國(guó)。上句提到還沒有上車,所以此句是說正在等待琳達(dá),應(yīng)用現(xiàn)在進(jìn)行時(shí),其構(gòu)成為“am/is/are doing”,主語(yǔ)“I”為第一人稱,應(yīng)用am構(gòu)成現(xiàn)在進(jìn)行時(shí),故選B。我正在等她。上句提到還沒有上車,所以此句是說正在等待琳達(dá),應(yīng)用現(xiàn)在進(jìn)行時(shí),其構(gòu)成為“am/is/are doing”,主解析:B【詳解】句意:——該上學(xué)了。我正在等她。13.B【詳解】句意:——該上學(xué)了。考查時(shí)態(tài)??疾闀r(shí)態(tài)。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。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!鳥兒在窗外的樹上快樂地歌唱。11.C【詳解】句意:聽!鳥兒在窗外的樹上快樂地歌唱。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。我在做作業(yè)。故選D??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)??疾閯?dòng)詞時(shí)態(tài)。故選C。根據(jù)語(yǔ)境及“at the moment”可知,打來電話的時(shí)候,布朗先生正在開會(huì),時(shí)態(tài)用現(xiàn)在進(jìn)行時(shí),結(jié)構(gòu)為am/is/are doing。根據(jù)語(yǔ)境及“at the moment”可知,打來電話的時(shí)候,布朗先生正在開會(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)在正在辦公室召開重要的會(huì)議。7.C【詳解】句意:——我能和布朗先生通電話嗎?——很抱歉,他現(xiàn)在正在辦公室召開重要的會(huì)議。根據(jù)“Let’s go and help her”可知,此處指讓我們?nèi)椭谧鐾盹埖哪棠?,故為現(xiàn)在進(jìn)行時(shí),其結(jié)構(gòu)為am/is/are doing。我們?nèi)椭伞?疾閯?dòng)詞時(shí)態(tài)。6.A【詳解】句意:奶奶正在做晚飯。考查動(dòng)詞時(shí)態(tài)。根據(jù)“What are you up to”可知,答語(yǔ)要用現(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a解析:C【詳解】句意:——嗨,大明。你在忙什么?——我正在做一個(gè)關(guān)于家族史的項(xiàng)目。故選B。 考查現(xiàn)在進(jìn)行時(shí)。 考查現(xiàn)在進(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(yǔ)students復(fù)數(shù)人稱,be動(dòng)詞用are,故選C。他們現(xiàn)在正在開會(huì)。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(yǔ)students復(fù)數(shù)人稱,be動(dòng)詞用are,故選C。他們現(xiàn)在正在開會(huì)。故選B。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)。 ——他正在為下周舉行的英語(yǔ)演講比賽做準(zhǔn)備。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)。 ——他正在為下周舉行的英語(yǔ)演講比賽做準(zhǔn)備。takes off動(dòng)詞三單;is taking off現(xiàn)在進(jìn)行時(shí);has taken off現(xiàn)在完成時(shí);took off一般過去時(shí);根據(jù)“Ladies and gentlemen, please remain in your seats, fasten your seat belt and bring your seat back.”可知是飛機(jī)起飛前,讓乘客準(zhǔn)備的內(nèi)容,可推測(cè)出此處是用現(xiàn)在進(jìn)行時(shí)表將來,故選B。飛機(jī)正在起飛??疾闀r(shí)態(tài)。s not at home. She___________in the library.A.read B.reads C.is reading D.was reading20.—Peter, please be quiet. Your brother ________ on the phone.—No problem.A.records B.recorded C.was recording D.is recording21.—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.Joe, answer the phone for me. I ________ how to make dumplings in the kitchen.A.learned B.a(chǎn)m learning C.have learned D.learn23.You’d better not go this way. The workers _________ the road. A.have repaired B.a(chǎn)re repairing C.repaired D.will repair24.— Mom, I’m busy making the bed. Can you give me a hand? — Wait a moment. I ________ the floor.A.a(chǎn)m cleaning B.will clean C.was cleaning D.have cleaned25.My father ________ Beijing next week.A.leaves for B.is leaving for C.left D.leaves26.Xifeng Street is closed today because workers _______ some repairs.A.make B.made C.a(chǎn)re making D.were making27.—Look out! Something ________ down from the tree.—Dear me! It’s too dangerous.A.falls B.fell C.is falling D.was falling28.Be quiet. Your brother ________ classes online.A.has B.is having C.will have D.had29.— Tom, where is your little sister?— She _______ in the backyard now.A.is playing B.will play C.played D.plays30.— Tom, what’s your sister doing?— She ________ her homework in the study.A.does B.will do C.did D.is doing31.—Has your aunt finished