陳 濤
一、動(dòng)詞的時(shí)態(tài)
在初中階段我們共學(xué)過八種時(shí)態(tài),常用的有五種,即:一般現(xiàn)在時(shí)、一般過去時(shí)、一般將來時(shí)、現(xiàn)在進(jìn)行時(shí)和現(xiàn)在完成時(shí)。另外還有過去進(jìn)行時(shí)、過去完成時(shí)和過去將來時(shí)。
1.一般現(xiàn)在時(shí)
一般現(xiàn)在時(shí)表示經(jīng)常性或習(xí)慣性的動(dòng)作,常與often, usually, always, sometimes, every day等時(shí)間狀語連用。在一般現(xiàn)在時(shí)中,當(dāng)主語是第三人稱單數(shù)時(shí),實(shí)義謂語動(dòng)詞應(yīng)在其后加-s或-es;構(gòu)成疑問句或否定句時(shí)借助do, dont或does, doesnt,謂語動(dòng)詞應(yīng)用原形。例如:
Lucy always goes to work on time. 露西總是按時(shí)上班。
Does he usually watch TV in the evening? 他晚上經(jīng)常看電視嗎?
考題再現(xiàn):
Ill do it better if the teacher ____ me another chance.
(2007年河北省)
A. give B. gives C. gave D. will give
解析:選B。if引導(dǎo)條件狀語從句用一般現(xiàn)在時(shí)態(tài)表示將來。題干空前主語是the teacher為第三人稱單數(shù),所以B項(xiàng)正確。
2.一般過去時(shí)
一般過去時(shí)表示過去某一時(shí)刻或是經(jīng)常發(fā)生的動(dòng)作、情況或存在的狀態(tài),常常與yesterday, last year, two days ago, just now等表示過去的時(shí)間狀語連用,謂語動(dòng)詞用過去式。例如:
What did you do last Sunday? 上星期天你做什么了?
He arrived in Hangzhou an hour ago. 他一小時(shí)前到了杭州。
考題再現(xiàn):
——When ____ your brother ____ back?
——About half an hour ago. (2007年武漢市新課程)
A. did, come B. had, come C. do, come D. have, come
解析:選A。題干答語中 About half an hour ago為過去時(shí)態(tài)的時(shí)間狀語,所以對話語境為過去;問句為特殊疑問句,所以選A。
3. 一般將來時(shí)
一般將來時(shí)表示將要發(fā)生的動(dòng)作、情況或存在的狀態(tài),常與tomorrow, next week, in a week, soon等表示將來的時(shí)間狀語連用,其謂語由“will/shall/be going to+動(dòng)詞原形”構(gòu)成。例如:
What are you going to do tomorrow? 你明天準(zhǔn)備干什么?
Peter will get up at six this Saturday.
彼得這個(gè)星期六準(zhǔn)備6:00起床。
考題再現(xiàn):
Im glad I ____ with my best friend in the same school next year.
(2007年南寧)
A. study B. will study C. have studied D. studied
解析:選B。由題干從句中將來時(shí)態(tài)的標(biāo)志語next year可知,空白處應(yīng)填表示將來的謂語動(dòng)詞形式,所以選B項(xiàng)。
4. 現(xiàn)在進(jìn)行時(shí)
現(xiàn)在進(jìn)行時(shí)表示此刻或這一階段正在進(jìn)行的動(dòng)作,常與now, these days等時(shí)間狀語連用。其謂語動(dòng)詞由“am/is/are+現(xiàn)在分詞”構(gòu)成。例如:
What is he doing now? 他在做什么?
Look!Lily and Lucy are picking apples. 瞧!莉莉和露西正在摘蘋果。
Listen!What are they talking about? 聽!他們在談些什么?
考題再現(xiàn):
——Whats Tim doing at the moment?
——I think he ____ a report. (2007年重慶市課改實(shí)驗(yàn)學(xué)校)
A. gives B. was giving C. is giving D. has given
解析:選C。由題干對話問句中at the moment和所用的現(xiàn)在進(jìn)行時(shí)可知,答語的空白處應(yīng)填表示現(xiàn)在進(jìn)行時(shí)態(tài)的謂語動(dòng)詞形式。
5. 過去進(jìn)行時(shí)
過去進(jìn)行時(shí)表示過去某一時(shí)刻或某一段時(shí)間正在進(jìn)行的動(dòng)作,常與at that time, at this time yesterday, at eight oclook yesterday morning, when引導(dǎo)的時(shí)間狀語從句等表過去的時(shí)間狀語連用。謂語動(dòng)詞由“were/was+現(xiàn)在分詞”構(gòu)成。例如:
Was Mr Green reading at this time yesterday?
昨天的這個(gè)時(shí)候格林先生在讀書嗎?
What were you doing when your mother came home?
你媽媽回家時(shí),你正在干什么?
考題再現(xiàn):
I ____ my homework while my parents ____ TV last night.
(2006年南京)
A. did, have watched B. was doing, were watching
C. had done, were watching D. would do, were watching
解析:選B。題干中有兩個(gè)關(guān)鍵詞語,即:last night和while。last night是表示確定的過去時(shí)間的短語,一般不與完成時(shí)態(tài)連用,所以C項(xiàng)排除;while引導(dǎo)時(shí)間狀語從句時(shí),往往表示主句與從句的動(dòng)作同時(shí)進(jìn)行,并且時(shí)態(tài)要保持一致。由此可知,B項(xiàng)符合句意和句法。
6. 現(xiàn)在完成時(shí)
現(xiàn)在完成時(shí)指過去發(fā)生的某一動(dòng)作對現(xiàn)在造成的影響或結(jié)果,此時(shí)常與ever, yet, already, just, before, never等時(shí)間狀語連用。也可以用來表示過去發(fā)生的某一動(dòng)作一直持續(xù)到現(xiàn)在,此時(shí)與之連用的時(shí)間狀語有:up to now, so far, recently, how long, for two days, since two days ago等。謂語動(dòng)詞由“have/has+過去分詞”構(gòu)成。例如:
She has just left. 她剛剛離開。
He has been at this school for two years. 他在這個(gè)學(xué)校待了兩年了。
考題再現(xiàn):
In the past few years there ____ great changes in my hometown.
(2007年天津市)
A. have been B. were C. had been D. are
解析:選A。題干中的in the past few years短語為完成時(shí)態(tài)標(biāo)志語,句中謂語動(dòng)詞常用完成時(shí)態(tài)。
7. 過去將來時(shí)和過去完成時(shí)
這兩個(gè)時(shí)態(tài)一般用于賓語從句中。過去將來時(shí)表示在過去某個(gè)時(shí)間看來將要發(fā)生的動(dòng)作,謂語由“would+動(dòng)詞原形”構(gòu)成。過去完成時(shí)則表示在過去的過去就已完成的動(dòng)作,謂語由“had+過去分詞”構(gòu)成。例如:
Lin Tao said he would go there next week. 林濤說他下星期去那兒。
He told me he had never seen such a film before.
他告訴我他以前從未看過這類電影。
二、動(dòng)詞的語態(tài)
1. 主動(dòng)語態(tài)與被動(dòng)語態(tài)
動(dòng)詞有主動(dòng)語態(tài)和被動(dòng)語態(tài)兩種。主動(dòng)語態(tài)表示主語是謂語動(dòng)詞的執(zhí)行者;被動(dòng)語態(tài)是動(dòng)詞的一種特殊形式,表示句子中的主語是動(dòng)作的承受者。被動(dòng)語態(tài)由“助動(dòng)詞be+過去分詞”構(gòu)成,并且英語中動(dòng)詞的語態(tài)與時(shí)態(tài)是密不可分的。被動(dòng)句的時(shí)態(tài)通過助動(dòng)詞be的變化來體現(xiàn),它必須與主語的人稱和數(shù)相一致,其變化的規(guī)則與連系動(dòng)詞be完全一樣,注意只有及物動(dòng)詞有被動(dòng)語態(tài)形式。例如:
Paper was first invented by Chinese. 紙是中國人首先發(fā)明的。
He was given some books. 有人給了他一些書。
The old man is often laughed at. 那位老人常被人嘲笑。
考題再現(xiàn):
The 29th Olympic Games ____ in Beijing in 2008.(2005年廣東)
A. is held B. will hold C. will be held
解析:選C。從后面的時(shí)間狀語可知,要用一般將來時(shí),而運(yùn)動(dòng)會(huì)只能是被舉行,要用被動(dòng)語態(tài)。故選C。
——Who is the little boy in the picture?(2005年山東)
——Its me. The picture ____ 10 years ago.
A. took B. is taken C. has taken D. was taken
解析:選D。由時(shí)間狀語10 years ago,可知用一般過去時(shí),且主語the picture為物,為動(dòng)作的承受者,應(yīng)用被動(dòng)語態(tài),故選D。
2. 情態(tài)動(dòng)詞的被動(dòng)語態(tài)
含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)的結(jié)構(gòu)為“情態(tài)動(dòng)詞+be+動(dòng)詞過去分詞”。例如:
The plan ought to be put into practice as soon as possible.
計(jì)劃必須盡早執(zhí)行。
The books may be kept for two weeks by you. 這些書你可以借兩周。
考題再現(xiàn):
Trees ____ in winter but in spring.(2005年南寧)
A. can not plant B. can be not planted
C. cannot be planted D. can plant
解析:C 含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)是由“can+be+動(dòng)詞過去分詞”構(gòu)成的,其否定形式是在情態(tài)動(dòng)詞后加not,由常識(shí)可知應(yīng)選C。
3. 不定式的被動(dòng)語態(tài)
主動(dòng)句中的賓語如果是不帶to的不定式,在變成被動(dòng)句中的主語補(bǔ)足語時(shí),to不能省去。例如:
She heard him sing a song just now.=He was heard to sing a song just now. 她聽到他剛才唱了一首歌。