【正文】 時(shí)態(tài)?？疾閯?dòng)詞時(shí)態(tài)。根據(jù)“Don’t make any noise”及“now”可知，此處應(yīng)用現(xiàn)在進(jìn)行時(shí)表示正在進(jìn)行的動(dòng)作，結(jié)構(gòu)為am/is/are doing，故選C。27．C【詳解】句意：吉姆，別出聲！你的小妹妹現(xiàn)在正在睡覺(jué)?！獙?duì)不起，艾米。——對(duì)不起，艾米?？疾閯?dòng)詞時(shí)態(tài)辨析。我在聽(tīng)一個(gè)英語(yǔ)演講。隨著其他公司加快發(fā)展，我們?cè)谛畔⒓夹g(shù)領(lǐng)域的領(lǐng)導(dǎo)地位正在逐漸喪失。24．A【詳解】句意：——你覺(jué)得你的公司怎么樣？——有點(diǎn)擔(dān)心。我們一定會(huì)贏。23．B【詳解】句意：我們組的同學(xué)正在為比賽做最后的準(zhǔn)備。我正在廚房學(xué)習(xí)如何包餃子?？疾閯?dòng)詞時(shí)態(tài)。結(jié)合語(yǔ)境可知下文描述的是說(shuō)話時(shí)正在進(jìn)行的動(dòng)作，故用現(xiàn)在進(jìn)行時(shí)態(tài)?？疾楝F(xiàn)在進(jìn)行時(shí)?？疾閯?dòng)詞時(shí)態(tài)。故選B。think about思考，一般現(xiàn)在時(shí)；am thinking about現(xiàn)在進(jìn)行時(shí)；was th解析：B【詳解】句意：——嘿！你差點(diǎn)撞到樹(shù)了！怎么了？——對(duì)不起，我在想我的家鄉(xiāng)之旅。分析語(yǔ)境可知，上文詢問(wèn)時(shí)，弗蘭克正在房間里聽(tīng)音樂(lè)，故此處應(yīng)為進(jìn)行時(shí)態(tài)，結(jié)合上文中is可知，此處為現(xiàn)在進(jìn)行時(shí)。分析語(yǔ)境可知，上文詢問(wèn)時(shí)，弗蘭克正在房間里聽(tīng)音樂(lè)，故此處應(yīng)為進(jìn)行時(shí)態(tài)，結(jié)合上文中is可知，此處為現(xiàn)在進(jìn)行時(shí)。根據(jù)“An old friend of mine is ing.”可知此人正在等某人。我們很久沒(méi)見(jiàn)面了。A是一般現(xiàn)在時(shí)；B是現(xiàn)在進(jìn)行時(shí)；C是過(guò)去進(jìn)行時(shí)；D是一般過(guò)去時(shí)。你在等別人嗎？——是的。根據(jù)問(wèn)句“—Tom, where39?？疾閯?dòng)詞的時(shí)態(tài)?？疾楝F(xiàn)在進(jìn)行時(shí)。考查現(xiàn)在進(jìn)行時(shí)。故選B?？疾閯?dòng)詞的的時(shí)態(tài)?！纫粫?huì)，我正在讀我的郵件。buy一般現(xiàn)在時(shí)；bought一般過(guò)去時(shí)；am buying現(xiàn)在進(jìn)行時(shí)；have bought現(xiàn)在完成時(shí)。buy一般現(xiàn)在時(shí)；bought一般過(guò)去時(shí)；am buying現(xiàn)在進(jìn)行時(shí)；have boug解析：C【詳解】句意：——快點(diǎn)，瑪麗，電影已經(jīng)開(kāi)始十分鐘了。13．C【詳解】句意：——快點(diǎn)，瑪麗，電影已經(jīng)開(kāi)始十分鐘了?？疾闀r(shí)態(tài)?？疾楝F(xiàn)在進(jìn)行時(shí)的用法。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(guò)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(lái)，故選B?？疾闀r(shí)態(tài)。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)。plays動(dòng)詞第三人稱單數(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)。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)。8．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。我在做作業(yè)。我在做作業(yè)。我在修我的車。我在修我的車。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。5．B【詳解】句意：——什么聲音，山姆？ ——我弟弟正在玩他的玩具車。考查現(xiàn)在進(jìn)行時(shí)。他正在洗碗。考查動(dòng)詞時(shí)態(tài)。故選C。根據(jù)題解析：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)。故選C。根據(jù)題干中“Where is he?”可知要回答現(xiàn)在在哪里，用現(xiàn)在進(jìn)行時(shí)表示“正在圖書(shū)館學(xué)習(xí)”，其解析：C【詳解】句意：——我在教室里找不到邁克了。 expecting D．Did。s dad?—Oh, he ________ the flowers in the garden.A．waters B．is watering C．watered D．has watered17．—You look absentminded. ________you ________someone?—Yes. An old friend of mine is ing. We haven39。t find Mike in the classroom. Where is he?—Oh, he ________ in the library.A．was studying B．studied C．is studying D．studies2．It dark. Shall I turn on the light？A．gets B．got C．is getting D．was getting3．I can’t lend you my English book, because I _______ it these days.A．use B．have used C．used D．a(chǎn)m using4．—Where is John?—He is in the kitchen. He ________ the dishes now.A．will wash B．is washing C．washes D．washed5．— What’s that noise, Sam?— My little brother ________ his toy car.A．played B．is playing C．plays D．was playing6．—Tom, please give me a hand in moving the piano. —Sorry. I ________ my car.A．repair B．repaired C．a(chǎn)m repairing D．have repaired7．—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 done8．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 prepared9．Listen! The boy ________ the piano again.A．plays B．played C．will play D．is playing10．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．ha