【正文】 finished現(xiàn)在完成時(shí)態(tài)形式；D. hadn’t finished過去完成時(shí)態(tài)形式。本句強(qiáng)調(diào)的是“還沒有完成”的這個(gè)結(jié)果，強(qiáng)調(diào)過去發(fā)生的動(dòng)作對(duì)現(xiàn)在造成的影響或結(jié)果，句子用現(xiàn)在完成時(shí)態(tài)。故選C?？键c(diǎn)：考查動(dòng)詞的時(shí)態(tài)。38．The movie for about 5 minutes,so let’s see the next one.A．has been on B．has started C．started D．began【答案】A【解析】句意：這部電影已經(jīng)開演五分鐘了，我們?nèi)タ聪乱徊堪?。根?jù)句中時(shí)間狀語for about 5 minutes可知?jiǎng)釉~應(yīng)該用延續(xù)性動(dòng)詞，時(shí)態(tài)為現(xiàn)在完成時(shí)態(tài)。start和begin均為短暫性動(dòng)詞，start對(duì)應(yīng)的延續(xù)性動(dòng)詞短語是be on。故答案選A。39．Has your cousin arrived in Beijing yet?Yes. She Beijing since yesterday morning.A．a(chǎn)rrived in B．has arrived in C．has been in D．has been to【答案】C【解析】句意：你表弟到北京了嗎？是的。她從昨天起就在北京了。since yesterday morning自昨天早晨以來，表示的是截止到目前為止的時(shí)間段，用于現(xiàn)在完成時(shí)態(tài)，排除A；arrived為短暫性動(dòng)詞，不能與表示一段的時(shí)間狀語連用；have been to表示某人去過某地，也不能與表示一段的時(shí)間狀語連用，故答案為C。點(diǎn)睛：have（has） been in 表示“在某地呆多長(zhǎng)時(shí)間”，常與表示一段時(shí)間的狀語連用，如：since, for, how long 等。例如：Mr. Brown has been in Shanghai for three days. 布朗先生來上海已經(jīng)有三天了。have（has）been to表示“曾經(jīng)去過某地”，現(xiàn)在已經(jīng)不在那里了?？膳cjust, ever, never等連用，例如： I have just been to the post office. 我剛才去郵局了。have（has） gone to 意為“到某地去了”，表示到了某地或正在去某地的途中?？傊?，說話時(shí)該人不在現(xiàn)場(chǎng)，一般不用第一、第二人稱代詞作句子的主語。例如：Where is Tom? He has gone to the bookshop. 湯姆在哪里？他到書店去了。Jack Johnson has gone to London. 。還要注意的是，無論have/has been to還是have/has gone to都不能與表示一段的時(shí)間狀語連用。40．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； 一般將來時(shí)；B. have有，一般現(xiàn)在時(shí)態(tài)；C. had有，一般過去時(shí)態(tài)。這里是unless引導(dǎo)的條件狀語從句，遵循主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)態(tài)，從句主語是you ,動(dòng)詞用原形。根據(jù)題意，故選B?！军c(diǎn)睛】if和unless引導(dǎo)的條件狀語從句而已算是其中一種；主將從現(xiàn)常見的有以下四種情況：一、條件狀語從句的主句是一般將來時(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常見的時(shí)間狀語從句的連詞有：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.41．—What was your father doing when you got home yesterday?—He　　　dinner at that time.A．cooks B．was cooking C．is cooking D．will cook【答案】B【解析】【詳解】句意：——昨天當(dāng)你到家的時(shí)候你的父親在做什么？——當(dāng)時(shí)他在做晚餐?？疾闀r(shí)態(tài)。cooks烹飪，一般現(xiàn)在時(shí)；was cooking過去進(jìn)行時(shí)；is cooking現(xiàn)在進(jìn)行時(shí)；will cook一般將來時(shí)。根據(jù)at that time以及問句可知答語時(shí)態(tài)為過去進(jìn)行時(shí)。故選B。42．I didn39。t see you at Olympic Sports Centre this morning. What happened? Sorry, I the exchange students around our school then.A．showed B．was showing C．a(chǎn)m showing D．will show【答案】B【解析】句意：——今天早上我在奧運(yùn)會(huì)體育中心沒有看見你。發(fā)生了什么？——對(duì)不起，我那時(shí)正領(lǐng)著交換生參觀我們學(xué)校。根據(jù)時(shí)間副詞then可知此處用過去進(jìn)行時(shí)，故選B。43．–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)的條件狀語從句用一般現(xiàn)在時(shí)態(tài)表將來，故答案為B。44．When I got to the classroom, my friend Bob＿＿the floor.A．is cleaning B．was cleaning C．cleaned D．has cleaned【答案】B【解析】【詳解】句意：當(dāng)我進(jìn)教室時(shí)，我的朋友鮑勃正在打掃地板。考查時(shí)間狀語從句、時(shí)態(tài)。A. is cleaning（現(xiàn)在進(jìn)行時(shí)）；B. was cleaning（過去進(jìn)行時(shí)）；C. cleaned（一般過去式）；D. has cleaned（現(xiàn)在完成時(shí)）；when引導(dǎo)的時(shí)間狀語從句指特定時(shí)間正在發(fā)生的動(dòng)作，根據(jù)主從句時(shí)態(tài)一致的原則，判斷主句用過去進(jìn)行時(shí)，故選B。45．Everyone in Class 4 _______ TV on Sundays.A．watches B．to watchC．watching D．watched【答案】A【解析】句意：在星期天四班的每個(gè)人看電視。watches是動(dòng)詞watch的第三人稱單數(shù)；to watch動(dòng)詞不定式，作賓語或目的狀語；watching現(xiàn)在分詞，作賓語或伴隨狀語；watched動(dòng)詞watched的過去式，用于一般過去時(shí)。根據(jù)時(shí)間狀語on Sundays可知此處用于一般現(xiàn)在時(shí)，主語everyone是第三人稱單數(shù)，故謂語用第三人稱單數(shù)watches。故選A。46．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。If you too much icecream引導(dǎo)的是條件狀語從句，主句應(yīng)該用一般將來時(shí)，符合主將從現(xiàn)的原則。所以從句用一般現(xiàn)在時(shí)。故選D。47．— What were you doing when we were playing basketball yesterday afternoon?— I ______ the classroom.A．was cleaning B．have cleanedC．will clean D．clean【答案】A【解析】試題分析：句意：昨天下午當(dāng)我們正在打籃球時(shí)，你正在做什么？結(jié)合語境可知下文描述的是過去某時(shí)正在進(jìn)行的動(dòng)作，故用過去進(jìn)行時(shí)態(tài)。選A。考點(diǎn)：考查動(dòng)詞的時(shí)態(tài)。48．David ________ school two years ago and he _________ for two years.A．leaves, has gone B．left, has been awayC．leaves, has been away D．left, has gone【答案】B【解析】【詳解】句意：杰克遜兩年前離開學(xué)校，他已經(jīng)走了兩年了。 two years ago是過去時(shí)間短語，動(dòng)詞用過去式；for two year表示一段時(shí)間，動(dòng)詞應(yīng)具有持續(xù)性或表狀態(tài)，be away表狀態(tài)，可以和現(xiàn)在完成時(shí)態(tài)連用。故選B。49．—Could you tell me __________ yesterday?—Because my bike was broken on my way here.A．why you came late B．why do you e lateC．why you e late D．why did you e late【答案】A【解析】【詳解】句意：——你能告訴我你昨天為什么遲到嗎？——因?yàn)槲业淖孕熊囋趤淼穆飞蠅牧恕？疾橘e語從句。英語賓語從句中一般用陳述語序，可知排除B和D。根據(jù)賓語從句時(shí)間狀語yesterday，可知賓語從句時(shí)態(tài)是一般過去時(shí)態(tài)。故選A。50．My grandma ______ a song with her friends when I came back.A．sings B．sang C．is singing D．was singing【答案】D【解析】句意：當(dāng)我回來的時(shí)候，我的祖母正和她的朋友一起唱歌。根據(jù)when I came back可知此處表示過去某時(shí)正在做某事，故用過去進(jìn)行時(shí)，故選D。