【正文】 when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)；故選D。50．When it began to rain heavily, she ________ for a bus at the bus stop.A．waited B．waits C．is waiting D．was waiting【答案】D【解析】句意：當(dāng)雨下得很大時(shí)，她正在公共汽車站等公共汽車。它從古代就屬于中國。第二空中，飛機(jī)起飛是有時(shí)間表的，根據(jù)時(shí)間表的動(dòng)作需要用一般現(xiàn)在時(shí)，故選A。 is taking off【答案】A【解析】句意“布萊克先生幾天后要去上海，你知道星期天最早的飛機(jī)什么時(shí)候起飛嗎？”。 takes offC．is leaving。48．Mr Black ___ Shanghai in a few days．Do you know when the earliest plane ________ on Sunday?A．is leaving。結(jié)合選項(xiàng)可知應(yīng)選C。他說他到家就會(huì)打電話給我。 got D．came。 gets B．came。46．Not only Tom but also his brother ________the Greener China for two years.A．has bee a member ofB．has been inC．have been a member of【答案】B【解析】句意：不僅湯姆還有他弟弟參加盧瑟中國2年了。45．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)看見許多人出去時(shí)都戴著口罩。他一來我就會(huì)給你打電話的。根據(jù)句中的This morning判斷句子是一個(gè)過去的時(shí)間，時(shí)態(tài)用過去時(shí)；而While引導(dǎo)的句子通常用進(jìn)行時(shí)，所以本句使用過去進(jìn)行時(shí)，構(gòu)成為were/was+動(dòng)詞現(xiàn)在分詞，主語是we，所以系動(dòng)詞用were，have an English lesson“上英語課”，have的現(xiàn)在分詞是having；故答案選D。根據(jù)時(shí)間狀語in twenty minutes可知此處用一般將來時(shí)，表示位置移動(dòng)的動(dòng)詞，如leave, go, e等的現(xiàn)在進(jìn)行時(shí)表示一般將來時(shí)，故為is leaving，故選C。42．Hurry up. The train _________ in twenty minutes.A．left B．has left C．is leaving D．has been away【答案】C【解析】句意：快點(diǎn)。這里是there be句型，不能出現(xiàn)have/has，排除BD；根據(jù)時(shí)間狀語tomorrow ，其結(jié)構(gòu)是there will be+主語+介詞短語。this pen for 3 years.41．There a basketball game between Class 8 and Class 12 tomorrow afternoon.A．is B．has C．will be D．will have【答案】C【解析】【詳解】句意：明天下午在8班和12班之間將有一場籃球比賽。this pen 3 years ago. = IIbeen deaddiedbegin/start→ be on, leave→be away, e→be in/here等。點(diǎn)睛：短暫性動(dòng)詞在現(xiàn)在完成時(shí)態(tài)的肯定句中不能與表示一段的時(shí)間狀語連用，如句子中的left為短暫性動(dòng)詞，另外還要記住幾個(gè)常見的短暫性動(dòng)詞與延續(xù)性動(dòng)詞的轉(zhuǎn)化：borrow→keep, buy→have, get/catch a cold→have a cold ，die→be dead, open→be open，end/finish → be over,根據(jù)for about 2 ，而且用現(xiàn)在完成時(shí)。40．―When did she leave? ―As if it was 3:30. She for about 2 hours.A．has been away B．left C．has left【答案】A【解析】句意：―她什么時(shí)候離開的？―好像在3:30?？疾橐话銓頃r(shí)。從句用一般過去時(shí)，主句用過去完成時(shí)，需用“had+過去分詞”結(jié)構(gòu)，可排除A；根據(jù)句意結(jié)構(gòu)，可知選B?？疾閯?dòng)詞時(shí)態(tài)辨析題。 have scored D．had turned。 have scored B．turned。選A。A. visit 一般現(xiàn)在時(shí)；B. visited 一般過去時(shí)；C. have visited現(xiàn)在完成時(shí)；D. will visit一般將來時(shí)。37．—What do you often do at weekends?—I often ________ my grandparents.A．visit B．visited C．have visited D．will visit【答案】A【解析】【詳解】句意：你經(jīng)常在周末做什么？——我經(jīng)常去看我的爺爺奶奶。In half an hour半小時(shí)后，表示的是將來時(shí)間。36．－Have you washed the clothes? －Not yet. But I _________ them in half an hour.A．washed B．have washed C．will wash D．wash【答案】C【解析】句意：——你洗衣服了嗎？——還沒有?？疾楝F(xiàn)在進(jìn)行時(shí)。there be句型不與have連用，排除A和C，且第一空處主語為so many noisy kids，謂語用復(fù)數(shù)，排除B，第二空處when引導(dǎo)的從句用一般現(xiàn)在時(shí)，主句用一般將來時(shí)，即“主將從現(xiàn)”原則，故選D。 are playing D．a(chǎn)re。 play B．is。本句時(shí)態(tài)為將來時(shí)，將來時(shí)態(tài)有兩種表達(dá)方式，一種是will+動(dòng)詞原形，另一種是be going to+動(dòng)詞原形，本句用到there be 句型，故選B。過去進(jìn)行時(shí)的謂語動(dòng)詞的形式是：was/were+doing，故選C。根據(jù)didn39。32．—Why didn39。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。太晚了，它都結(jié)束一個(gè)小時(shí)了，結(jié)果是1比0，中國贏了?！军c(diǎn)評(píng)】本題考查過去完成時(shí)，注意掌握過去完成時(shí)的結(jié)構(gòu)had+過去分詞。根據(jù)動(dòng)詞asked一般過去時(shí)可知，動(dòng)詞happen的動(dòng)作發(fā)生在asked之前，表示過去的過去，用過去完成時(shí)had+過去分詞。D.would happenB.happened30．Seeing Danel went into