【正文】 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。他在哪里？——哦，他在圖書(shū)館學(xué)習(xí)。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。飛機(jī)正在起飛?？疾闀r(shí)態(tài)。12．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?！罢谟谩睍r(shí)態(tài)是現(xiàn)在進(jìn)行時(shí)。根據(jù)“Sorry...”及“I will give it to you later.”可知，抱歉，我稍后給你。我稍后給你。考查動(dòng)詞時(shí)態(tài)。11．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?？疾闀r(shí)態(tài)。你哥哥正在手機(jī)上錄音?？疾闀r(shí)態(tài)。你哥哥正在手機(jī)上錄音。故選C?？疾閯?dòng)詞時(shí)態(tài)。根據(jù)前句“Not now”語(yǔ)境可知，后句的動(dòng)作正在進(jìn)行，應(yīng)用現(xiàn)在進(jìn)行時(shí)，構(gòu)成解析：C【詳解】句意：——去看電影怎么樣？有部叫《嗨，媽媽》的新電影?！F(xiàn)在不行，我在幫我弟弟托尼學(xué)英語(yǔ)。故選A?？疾閯?dòng)詞時(shí)態(tài)。根據(jù)“Let’s go and help her”可知，此處指讓我們?nèi)椭谧鐾盹埖哪棠蹋蕿楝F(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)為am/is/a解析：A【詳解】句意：奶奶正在做晚飯。我們?nèi)椭?。故選B。 考查現(xiàn)在進(jìn)行時(shí)。 考查現(xiàn)在進(jìn)行時(shí)。故選A。考查時(shí)態(tài)?？疾闀r(shí)態(tài)。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。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)，故選解析：D【詳解】句意：——莉莉，你父親在哪里？——他正在廚房做飯。5．D【詳解】句意：——莉莉，你父親在哪里？——他正在廚房做飯?？疾楝F(xiàn)在進(jìn)行時(shí)?？疾楝F(xiàn)在進(jìn)行時(shí)。故選D?？疾闀r(shí)態(tài)?？疾闀r(shí)態(tài)。故選C。s not at home.”可知，這里是現(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)是be doing的形式。read讀書(shū)，原形；reads讀書(shū)，第三人稱(chēng)單數(shù)； is reading 正在讀書(shū)，現(xiàn)在進(jìn)行時(shí)；was reading正在讀書(shū)，過(guò)去進(jìn)行時(shí)。她正在圖書(shū)館看書(shū)。read讀書(shū)，原形；reads讀書(shū)，第三人稱(chēng)單數(shù)； is reading 正在讀書(shū)，現(xiàn)在進(jìn)行解析：C【詳解】句意：——你好。她正在圖書(shū)館看書(shū)。2．C【詳解】句意：——你好。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)。 expecting D．Did。 expect B．Are。t e yet. I ___________for her.A．have waited B．a(chǎn)m waiting C．was waiting D．waited15．— Hurry up, Mary. The movie has already been on for ten minutes. —Wait a moment. I ________ some snacks in a shop.A．buy B．bought C．a(chǎn)m buying D．have bought16．—I _____to Beijing tomorrow. —Have a good trip!A．flies B．fly C．a(chǎn)m flying D．flew17．—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．studies14．—It39。小學(xué)英語(yǔ)句式轉(zhuǎn)換要點(diǎn)及練習(xí)題一、選擇題1．—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 done2．— Hello. May I speak to Laura, please?—Sorry, she39。s not at home. She___________in the library.A．read B．reads C．is reading D．was reading3．—What’s that noise, Mike?—My little sister ________ with her toy car now.A．plays B．played C．will play D．is playing4．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．— Tom, where is your little sister?— She _______ in the backyard now.A．is playing B．will play C．played D．plays7．— What’s that noise, Sam?— My little brother ________ his toy car.A．played B．is playing C．plays D．was playing8．Grandma ________ dinner. Let’s go and help her.A．is making B．makes C．made D．was making9．—What about going to the cinema? There’s a new movie called Hi, Mom.—Not now, I _