【正文】 在正在廚房做飯。你能幫我一下嗎？——等一下。工人們正在修路。考查動(dòng)詞時(shí)態(tài)。考查動(dòng)詞時(shí)態(tài)。根據(jù)“Not yet. She…it these days.”可知，動(dòng)作還未完成，現(xiàn)在也在做，所以用現(xiàn)在進(jìn)行時(shí)，故選C?？疾闀r(shí)態(tài)。故選B。根據(jù)上文“You look absentminded.”可知是詢問(wèn)現(xiàn)在做的事情，此句時(shí)態(tài)是現(xiàn)在進(jìn)行時(shí)。考查句子的時(shí)態(tài)。結(jié)構(gòu)為：主語(yǔ)+will/shall+動(dòng)詞原形、主語(yǔ)+am/is/are+動(dòng)名詞。故選B?！纫粫?huì)，我正在讀我的郵件。故選D。根據(jù)語(yǔ)境可知，此處指的應(yīng)該是正在準(zhǔn)備做某事，表示正在進(jìn)行的動(dòng)作要用現(xiàn)在進(jìn)行時(shí)，結(jié)構(gòu)是“am/ is/ are doi解析：B【詳解】句意：——那個(gè)糟糕的噪音是什么？——學(xué)生們正在準(zhǔn)備聚會(huì)。考查現(xiàn)在進(jìn)行時(shí)。飛機(jī)正在起飛?？疾閯?dòng)詞時(shí)態(tài)?？疾楝F(xiàn)在進(jìn)行時(shí)的用法。10．C【詳解】句意：——嗨，大明。9．C【詳解】句意：看，許多人在公園里跳舞。8．C【詳解】句意：請(qǐng)保持安靜。他正在洗碗。根據(jù)“Where’s your father, Lily?”可知，此處是詢問(wèn)當(dāng)前的情況，表示正在做某事，用現(xiàn)在進(jìn)行時(shí)，故選D?？疾楝F(xiàn)在進(jìn)行時(shí)。她正在打掃教室。她正在圖書(shū)館看書(shū)。考查時(shí)態(tài)。 expecting D．Did。s not at home. She___________in the library.A．read B．reads C．is reading D．was reading3．Betty can’t join us in the game. She ________ the classroom.A．has cleaned B．was cleaning C．has cleaned D．is cleaning4．Listen! The birds ________ happily in the tree outside the window.A．sing B．sang C．a(chǎn)re singing D．were singing5．—Where is your father, Lily?—He ________ in the kitchen.A．cooked B．cooks C．will cook D．is cooking6．I must leave now. My brother ________ for me outside.A．waits B．waited C．is waiting D．was waiting7．—Where is John?—He is in the kitchen. He ________ the dishes now.A．will wash B．is washing C．washes D．washed8．Be quiet, please. They _________ a meeting now.A．have B．had C．a(chǎn)re having D．were having9．Look, many people ________ in the park.A．dance B．danced C．a(chǎn)re dancing D．will dance10．—Hi, Daming. What are you up to?—I ________ a project about family history.A．do B．did C．a(chǎn)m doing D．was doing11．—Can Peter play games with us, Mrs. Hawking?—Wait a minute. He ________ a shower.A．is taking B．taken C．took D．was taking12．Excuse me. I really need to go now. My children _____________for me at school.A．a(chǎn)re waiting B．waits C．wait D．waited13．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 off14．—I can39?！獩](méi)問(wèn)題。我可以和勞拉講話嗎？——對(duì)不起，她不在家。根據(jù)上文“Hello. May I speak to Laura, please?”及下文“Sorry, she39。她正在打掃教室。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。根據(jù)“I must leave now.”可知，我哥哥現(xiàn)在正在外面等我，時(shí)態(tài)是現(xiàn)在進(jìn)行時(shí)，結(jié)構(gòu)：am/is/are+解析：C【詳解】句意：我現(xiàn)在必須離開(kāi)了，我哥哥正在外面等我。他正在洗碗。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。故選C。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。根據(jù)“Wait a minute.”可知，彼得現(xiàn)在正在洗澡，強(qiáng)調(diào)動(dòng)作正在進(jìn)行，所以時(shí)態(tài)應(yīng)該用現(xiàn)在進(jìn)行時(shí)，結(jié)構(gòu)為：am/is/are + 動(dòng)詞的現(xiàn)在分詞，主語(yǔ)He為第三人稱單數(shù)，be動(dòng)詞用is。我的孩子們?cè)趯W(xué)校等我。飛機(jī)正在起飛?？疾楝F(xiàn)在進(jìn)行時(shí)。16．D【詳解】句意：——昨天我收到了安先生的來(lái)信。考查時(shí)態(tài)。——等一會(huì)，我正在讀我的郵件?？疾橐话銓?lái)時(shí)。結(jié)合語(yǔ)境及選項(xiàng)，故選C。你在等別人嗎？——是的。20．B【詳解】句意：——什么聲音，山姆？ ——我弟弟正在玩他的玩具車。我正在做作業(yè)。這些天她正在寫?？疾閯?dòng)詞時(shí)態(tài)。24．B【詳解】句意：你最好不要走這邊。25．B【詳解】句意：你最好不要走這邊。26．A【詳解】句意：——媽媽，我在忙著鋪床。根據(jù)上文“I’m busy making the bed.”可知，我正在忙著鋪床，是現(xiàn)在進(jìn)行時(shí)；且根據(jù)下文的“Wait a moment.”可知，媽媽要求等一下，此時(shí)她正在掃地，也用現(xiàn)在進(jìn)行時(shí)，結(jié)構(gòu)是am/is/are doing。故選A。故選A。——天哪！太危險(xiǎn)了。故選C。故選B。 ——等一下。根據(jù)“Sorry, I can’t…Would you mind goin解析：C【詳解】句意：——伊森，我們?nèi)ゴ蚧@球，好嗎？——對(duì)不起，我不能。故選C?？疾楝F(xiàn)在進(jìn)行時(shí)。我正在澆花。它聞起來(lái)非常好。故選A。故選