【正文】 a. Maybe they all forgot me.A．phoned B．phones C．has phoned D．had phoned【答案】A【解析】句意：你看起來(lái)不開心，怎么了？當(dāng)我在美國(guó)的時(shí)候沒(méi)有人給我打電話，可能他們都忘了我吧！題干有過(guò)去的時(shí)間狀語(yǔ)when I was in America，需要用一般過(guò)去時(shí)態(tài)用來(lái)描述過(guò)去的一個(gè)動(dòng)作。故選A。46．—Were you at home at 9 o39。clock last night?—Yes. I a shower at that time.A．took B．was taking C．was taken D．a(chǎn)m taking【答案】B【解析】【詳解】句意：昨晚九點(diǎn)鐘你在家嗎？——是的，那時(shí)我正在洗澡。A. took一般過(guò)去時(shí)；B. was taking過(guò)去進(jìn)行時(shí)；C. was taken一般過(guò)去時(shí)的被動(dòng)語(yǔ)態(tài)；D. am taking現(xiàn)在進(jìn)行時(shí)。結(jié)合語(yǔ)境可知下文描述的是昨天晚上九點(diǎn)鐘正在進(jìn)行的動(dòng)作，時(shí)態(tài)用過(guò)去進(jìn)行時(shí)。故答案為選B。47．Unless you ________ your ID card, the teacher won’t let you in.A．will have B．have C．had【答案】B【解析】【詳解】句意：除非你有身份證，否則老師不會(huì)讓你進(jìn)去的。A. will have將有； 一般將來(lái)時(shí)；B. have有，一般現(xiàn)在時(shí)態(tài)；C. had有，一般過(guò)去時(shí)態(tài)。這里是unless引導(dǎo)的條件狀語(yǔ)從句，遵循主句用一般將來(lái)時(shí)，從句用一般現(xiàn)在時(shí)態(tài)，從句主語(yǔ)是you ,動(dòng)詞用原形。根據(jù)題意，故選B。【點(diǎn)睛】if和unless引導(dǎo)的條件狀語(yǔ)從句而已算是其中一種；主將從現(xiàn)常見(jiàn)的有以下四種情況：一、條件狀語(yǔ)從句的主句是一般將來(lái)時(shí),那么從句常常用一般現(xiàn)在時(shí)如：When I grow up,I’ll be a nurse and look after patients我長(zhǎng)大后要當(dāng)一名護(hù)士,照顧病人二、如果主句是祈使句,那么從句通常要用一般現(xiàn)在時(shí)如：Don’t laugh at me when I make a mistake.我犯錯(cuò)誤的時(shí)候不要笑話我.三、如果主句是含有情態(tài)動(dòng)詞的一般現(xiàn)在時(shí),根據(jù)需要從句多用現(xiàn)在進(jìn)行時(shí)如：You should be quiet when you are in the reading room在閱覽室時(shí)應(yīng)保持安靜 ,祈使句應(yīng)用not to.如。 She said not to close the window常見(jiàn)的時(shí)間狀語(yǔ)從句的連詞有：as soon as,when,while ,as,until等用在unless或if中可以是下面的用法：I will not go boating if it rains tomorrow.Unless you have finish your homework,I won39。t allow you to watch TV.48．My grandma _______ to the radio when I got home just now.A．listens B．listened C．is listening D．was listening【答案】D【解析】句意：我剛才到家的時(shí)候我的奶奶正在聽廣播。結(jié)合語(yǔ)境理解可知，當(dāng)我到家這一時(shí)刻，另一個(gè)動(dòng)詞正在進(jìn)行，when引導(dǎo)的時(shí)間狀語(yǔ)從句是一般過(guò)去時(shí)，主句表達(dá)的是過(guò)去正在進(jìn)行的動(dòng)作，故句子的時(shí)態(tài)為過(guò)去進(jìn)行時(shí)，答案為D。49．—Let’s turn on the TV and watch the football match.—It’s too late. It_____for an hour. And the result was won.A．has finished B．has begun C．has been on D．has been over【答案】D【解析】【詳解】句意：讓我們打開電視看足球比賽吧。太晚了，它都結(jié)束一個(gè)小時(shí)了，結(jié)果是1比0，中國(guó)贏了。has finished結(jié)束了，現(xiàn)在完成時(shí)；has begun開始了；has been on一直在進(jìn)行；has been over已經(jīng)結(jié)束了。句中for an hour表示一段時(shí)間，finish和begin都是瞬間性動(dòng)詞，不能和一段時(shí)間連用，故排除A和B。根據(jù)句意It’s too late以及后面…the result was…可知，比賽已經(jīng)結(jié)束了，故應(yīng)選D。50．–Have you seen yesterday’s TV play? I think Mary won’t marry the rich man.–I agree. Unless the man finally ________ his mind to help the poor.A．change B．changes C．changed D．will change【答案】B【解析】句意：你看過(guò)昨天的電視劇嗎？我想瑪麗不會(huì)嫁給那個(gè)有錢人的。我同意。除非這個(gè)人最終改變主意去幫助窮人。unless引導(dǎo)的條件狀語(yǔ)從句用一般現(xiàn)在時(shí)態(tài)表將來(lái)，故答案為B。51．—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，今晚我想在中央電視臺(tái)1臺(tái)看《永恒的經(jīng)典》。——哦，天哪，已經(jīng)開演了將近二十分鐘了。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。52．It’s nice to see you again. We ______ each other for a long time.A．didn’t see B．haven’t seen C．won’t see D．didn’t see【答案】B【解析】【詳解】句意：再次見(jiàn)到你很開心，我們已經(jīng)好長(zhǎng)時(shí)間沒(méi)見(jiàn)了。本題考查的是時(shí)態(tài)，結(jié)合語(yǔ)境，此處指到現(xiàn)在為止有好久沒(méi)有見(jiàn)面了，根據(jù)所給空后面的for a long time是現(xiàn)在完成時(shí)的標(biāo)志詞可知，應(yīng)該用現(xiàn)在完成時(shí)，故答案選B。53． Did you see a man in black pass by just now? No, sir. I ________ my car.A．wash B．washed C．a(chǎn)m washing D．was washing【答案】D【解析】句意：——你剛才看見(jiàn)一個(gè)穿黑過(guò)路人的人嗎？ ——沒(méi)有，先生。我在洗車。由問(wèn)句“Did you see…?”的時(shí)態(tài)可知，答語(yǔ)中也應(yīng)該用過(guò)去時(shí)態(tài)，排除A、C兩項(xiàng)。沒(méi)看到是因?yàn)楫?dāng)時(shí)正在洗車，故應(yīng)用過(guò)去進(jìn)行時(shí)態(tài)。答案為D項(xiàng)。54．The 1st National Youth Games _________ in Fuzhou in 2015.A．takes place B．took place C．is taken place D．was taken place【答案】B【解析】【詳解】句意：第一屆全國(guó)青年運(yùn)動(dòng)會(huì)于2015年在福州舉行?？疾橐话氵^(guò)去時(shí)態(tài)。take place意思是“發(fā)生”，是不及物動(dòng)詞詞組，沒(méi)有被動(dòng)語(yǔ)態(tài)，排除C、D選項(xiàng)，根據(jù)句中的時(shí)間狀語(yǔ)in 2015，可知句子的時(shí)態(tài)是一般過(guò)去時(shí)，take的過(guò)去式為took，排除A選項(xiàng)，只有選項(xiàng)B符合題意，故答案選B。55．There39。s little meat in the fridge. I _______ some in the supermarket. A．buy B．bought C．will buy D．have bought【答案】C【解析】句意：冰箱里幾乎沒(méi)有肉了。我會(huì)在超市買一些。A. buy動(dòng)詞，買；B. bought過(guò)去式，買；C. will buy一般將來(lái)時(shí)結(jié)構(gòu)，會(huì)買；D. have bought現(xiàn)在完成時(shí)態(tài)結(jié)構(gòu)，已買。根據(jù)前一句可知，“買肉”這件事還未發(fā)生，所以使用一般將來(lái)時(shí)態(tài)，will+動(dòng)詞原形。故選：C。56．Sally _______ reading the novel. She will return it in the afternoon.A．finish B．finishes C．has finished D．is finishing【答案】C【解析】【詳解】句意：莎莉已讀完小說(shuō)了。她下午還。A. finish動(dòng)詞原形； B. finishes一般現(xiàn)在時(shí)態(tài)的第三人稱單數(shù)形式； C. has finished 現(xiàn)在完成時(shí)態(tài)的第三人稱單數(shù)形式；D. is finishing現(xiàn)在進(jìn)行時(shí)態(tài)的第三人稱單數(shù)形式。根據(jù)下句She will return it in the afternoon. 她下午還。可知，她已經(jīng)讀完了，故用現(xiàn)在完成時(shí)態(tài)，故選C。57．It’s late mom, why don’t you sleep?Your dad hasn’t e back. I ________ for him.A．a(chǎn)m waiting B．wait C．waited D．have waited【答案】A【解析】【詳解】句意：——媽媽很晚了，你為什么不睡覺(jué)？——你爸爸還沒(méi)回來(lái)。我在等他。A. am waiting現(xiàn)在進(jìn)行時(shí)；B. wait動(dòng)詞原形；C. waited過(guò)去式；D. have waited現(xiàn)在完成時(shí)。本題主要考查現(xiàn)在進(jìn)行時(shí)。根據(jù)題意，爸爸還沒(méi)有回來(lái)，“我”正在等你爸爸。表示現(xiàn)在正在進(jìn)行的動(dòng)作，用現(xiàn)在進(jìn)行時(shí) am/is/are + doing 的形式。又因?yàn)橹髡Z(yǔ)是 I，故 be 動(dòng)詞用 am。故填 am waiting，故選A。58．—I’m afraid the class has begun.—Don’t worry. It ________ until the bell ________.A．doesn’t begin。 rings B．won’t begin。 will ringC．won’t begin。 rings D．doesn’t begin。 will ring【答案】C【解析】試題分析：句意：恐怕課已經(jīng)開始了。一不要擔(dān)心。直到鈴聲響了才會(huì)開始。前面是主句，會(huì)議還沒(méi)開始，所以用一般將來(lái)時(shí)；后面是until引導(dǎo)的時(shí)間狀語(yǔ)從句，所以要用一般現(xiàn)在時(shí)代替一般將來(lái)時(shí)。所以選C?？键c(diǎn)：考查動(dòng)詞時(shí)態(tài)。59．—Green Book is on now. Would you like to go to the cinema with me?—No. thanks. I　　　it twice.A．see B．saw C．have seen D．will see【答案】C【解析】【詳解】句意：——《綠皮書》現(xiàn)在上映了。你想跟我一起去看電影嗎？——不了，謝謝。我已經(jīng)看過(guò)兩次了?？疾闀r(shí)態(tài)。see看，一般現(xiàn)在時(shí)；saw過(guò)去式；have seen現(xiàn)在完成時(shí)；will see一般將來(lái)時(shí)。根據(jù)twice可知此句是強(qiáng)調(diào)現(xiàn)在為止的生活經(jīng)歷，用現(xiàn)在完成時(shí)。故選C。60．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。since后跟從句，表示“自……以來(lái)”，說(shuō)明的是現(xiàn)在的狀況,判斷用現(xiàn)在完成時(shí)態(tài)，故答案為C。