【正文】 考點(diǎn)：考查延續(xù)性動(dòng)詞。根據(jù)句中的for 15 days可知該用現(xiàn)在完成時(shí)，并且謂語(yǔ)動(dòng)詞必須是延續(xù)性動(dòng)詞。根據(jù)句意結(jié)構(gòu)，可知選D。if和whether表示“是否”可換用，但和or not連用時(shí)需用whether，可排除AB兩項(xiàng)。 rain【答案】D【解析】句意：我們不確定明天是否會(huì)下雨。 rainy C．whether。59．We’re not sure _______ there’ll be _______ or not tomorrow.A．if。58．By the end of last week, Maggie _____________ in the west of China for two months helping the homeless children.A．will stay B．has stayed C．would stay D．had stayed【答案】D【解析】【詳解】句意：到上周末為止， Maggie已經(jīng)在中國(guó)西部待了兩個(gè)月幫助那些無(wú)家可歸的孩子們。open營(yíng)業(yè)的；closed關(guān)門(mén)的，不營(yíng)業(yè)的。57．—The shop is ____________ on Saturday and Sunday. We can go shopping there on weekdays.—Oh, no. It ____________ since last Saturday.A．open, has closed B．close, has been openC．open, has been opened D．closed, has been closed【答案】D【解析】【詳解】句意：這個(gè)商店周六、日不營(yíng)業(yè)，我們可以在工作日去那購(gòu)物。所以從句用一般現(xiàn)在時(shí)。56．If you too much icecream，you will get sick.A．will eat B．were eating C．a(chǎn)te D．eat【答案】D【解析】【詳解】句意：如果你吃太多的冰激淋，你將會(huì)生病?！?可推知?jiǎng)偛庞腥饲瞄T(mén)時(shí)我和我的朋友正在臥室里看電視。A. was watching過(guò)去進(jìn)行時(shí)；B. watched一般過(guò)去時(shí)；C. am watching現(xiàn)在進(jìn)行時(shí)；D. watch觀看，動(dòng)詞原形。55．Did you hear someone knocking at the door just now, Tom?No, I _______ TV with my friend in my bedroom.A．was watching B．watched C．a(chǎn)m watching D．watch【答案】A【解析】【詳解】句意：——湯姆，你剛才聽(tīng)到有人敲門(mén)了嗎？——沒(méi)有，我和我的朋友正在臥室里看電視。54．In Beijing, you can see many people wear masks（口罩）if they ____________ out on foggy days.A．went B．go C．a(chǎn)re going D．will go【答案】B【解析】句意：在北京，大霧天，你會(huì)看見(jiàn)許多人出去時(shí)都戴著口罩。began一般過(guò)去時(shí)態(tài)，開(kāi)始，表示過(guò)去發(fā)生的動(dòng)作；would begin將會(huì)開(kāi)始，過(guò)去將來(lái)時(shí)；have begun現(xiàn)在完成時(shí)，表示過(guò)去發(fā)生的動(dòng)作對(duì)現(xiàn)在的影響；were beginning正要開(kāi)始。故選A。watches是動(dòng)詞watch的第三人稱(chēng)單數(shù)；to watch動(dòng)詞不定式，作賓語(yǔ)或目的狀語(yǔ)；watching現(xiàn)在分詞，作賓語(yǔ)或伴隨狀語(yǔ)；watched動(dòng)詞watched的過(guò)去式，用于一般過(guò)去時(shí)。根據(jù)句意語(yǔ)境，可知選A。考查動(dòng)詞時(shí)態(tài)辨析題。加油！根據(jù)語(yǔ)境for a few minutes（幾分鐘）和e on，可知節(jié)目已經(jīng)進(jìn)行了幾分鐘并且現(xiàn)在還在演，故應(yīng)用動(dòng)詞的現(xiàn)在完成時(shí)態(tài)（基本結(jié)構(gòu)：主語(yǔ)+have/has+動(dòng)詞的過(guò)去分詞）．故可排除A和B；又由于begin是非延續(xù)性動(dòng)詞不能和for a few minutes搭配，而has been on（表示持續(xù)性的狀態(tài)）故選D。50．—Mum, I want to watch Everlasting Classics on CCTV 1 tonight.—Oh, dear, it for nearly twenty minutes. Come on!A．will begin B．will be on C．has begun D．has been on【答案】D【解析】【詳解】句意：——媽媽?zhuān)裢砦蚁朐谥醒腚娨暸_(tái)1臺(tái)看《永恒的經(jīng)典》。根據(jù)Mr Li left our school last month可知，本題用過(guò)去完成時(shí)。 has e【答案】B【解析】試題分析：句意：李先生上個(gè)月離開(kāi)了我們學(xué)校。 came C．was 。49．Mr Li left our school last month . He in our school for nine years since he here in 2000.A．is 。二十分鐘后火車(chē)將要離開(kāi)。根據(jù)句意和句中的for many years可知，這里表示過(guò)去發(fā)生的動(dòng)作對(duì)現(xiàn)在的影響，應(yīng)用現(xiàn)在完成時(shí)，故選C。47．I _________in London for many years, but I’ve never regretted my final decision to move back to China.A．lived B．was living C．have lived D．a(chǎn)m living【答案】C【解析】【詳解】句意：我在倫敦住了很多年了，但是我從來(lái)沒(méi)有后悔我最終決定搬回中國(guó)。A. knew一般過(guò)去時(shí)；B. have known現(xiàn)在完成時(shí)；C. will know一般將來(lái)時(shí)。46．Jack is my classmate. We ______ each other since he came to our school.A．knew B．have known C．will know【答案】B【解析】【詳解】句意：杰克是我的同學(xué)。【詳解】試題分析：句意：水變得又臟又黑，已經(jīng)不能繼續(xù)安全飲用了。根據(jù)提示詞tomorrow可知時(shí)態(tài)用一般將來(lái)時(shí)，其構(gòu)成為：will+動(dòng)詞原形；故答案選A。44．— Who the classroom tomorrow, Tony?— Our group.A．will clean B．cleans C．cleaned D．clear【答案】A【解析】句意：——托尼，明天誰(shuí)打掃教室？——我們小組。43．This medicine _______ millions of people’s lives since it was put into use.A．is saving B．will save C．has saved D．had saved【答案】C【解析】句意：這種藥物自從投入使用以來(lái)已經(jīng)挽救了數(shù)百萬(wàn)人的生命。A. has 單數(shù)第三人稱(chēng)形式 B. had 一般過(guò)去時(shí) C. will have一般將來(lái)時(shí) D. is having現(xiàn)在進(jìn)行時(shí)。本題考查動(dòng)詞的時(shí)態(tài)。clock this afternoon.A．is cooking B．was cooking C．cooks D．cooked【答案】B【解析】本題難度適中，考查過(guò)去進(jìn)行時(shí)，當(dāng)你昨天5點(diǎn)打電話(huà)給她時(shí)，他正在煮飯，答案是was cooking，選B。lose這一動(dòng)詞發(fā)生在過(guò)去，造成的結(jié)果是現(xiàn)在看不見(jiàn)了，屬于完成的動(dòng)作，要用現(xiàn)在完成時(shí)態(tài)來(lái)表達(dá)，故答案為C。40．—Mum, where is my dictionary?—Oh, I didn’t see it, either. I’m afraid you ___________ it.A．a(chǎn)re losing B．will lose C．have lost D．were losing【答案】C【解析】句意：——媽媽?zhuān)业淖值?