【正文】 fore或after引導(dǎo)的時(shí)間狀語(yǔ)從句的復(fù)合句中，由于主、從句動(dòng)作發(fā)生的先后順序已非常明確，所以可用一般過(guò)去時(shí)代替過(guò)去完成時(shí)，如The train had left before I got to the station、也可以說(shuō)：The train left before I got to the station、其他時(shí)態(tài)的比較，如一般現(xiàn)在時(shí)與現(xiàn)在進(jìn)行時(shí)，一般過(guò)去時(shí)與過(guò)去進(jìn)行時(shí)的用法比較不再列舉。時(shí)態(tài)的混合使用是以掌握好每一種時(shí)態(tài)的用法以及各時(shí)態(tài)的比較用法為基礎(chǔ)的，在中學(xué)階段使用較少，在此不做詳談。三、注意時(shí)態(tài)與時(shí)間不一致的特殊情況如前所述，判斷時(shí)態(tài)要從“標(biāo)志”（時(shí)間狀語(yǔ)）著眼，這是一般規(guī)律。但有些情況下，時(shí)態(tài)與時(shí)間（標(biāo)志）并不一致，在教學(xué)中應(yīng)引起足夠的重視，做到靈活使用，可視之為“特殊標(biāo)志”。一些表示來(lái)往動(dòng)作的動(dòng)詞（動(dòng)向動(dòng)詞）常用進(jìn)行時(shí)表示將來(lái)時(shí)，常見(jiàn)的這類動(dòng)詞有arrive，e，go，leave，set off，start等、例如：The Browns are leaving for Paris next month、一般現(xiàn)在時(shí)有時(shí)可以表示預(yù)定的近期將發(fā)生的動(dòng)作或狀態(tài)，也可用來(lái)表示說(shuō)話時(shí)正在進(jìn)行的動(dòng)作。例如：Are you free tomorrow？ The train starts at 7：50 in the evening、Here es the bus！There goes the bell！一般過(guò)去時(shí)可以表示目前非真實(shí)的情況或不能實(shí)現(xiàn)的愿望（即虛擬語(yǔ)氣）。例如：I wish I could fly to the moon by spaceship、It’s high time you went home、If I were you，I would go with him、在含有狀語(yǔ)從句的復(fù)合句中，當(dāng)主句是將來(lái)時(shí)態(tài)或是祈使句時(shí)，狀語(yǔ)從句應(yīng)用一般現(xiàn)在時(shí)或現(xiàn)在完成時(shí)代替一般將來(lái)時(shí)，用一般過(guò)去時(shí)代替過(guò)去將來(lái)時(shí)。例如：I will go to town if it doesn’t rain tomorrow、He said he would e to see us if he had time、Please tell him about it as soon as he es back、Are you going to play with us when you have finished your homework？在含有賓語(yǔ)從句的復(fù)合句中，主從句動(dòng)詞時(shí)態(tài)有如下不一致情況。（1）當(dāng)賓語(yǔ)從句表示科學(xué)真理、客觀事實(shí)、格言或其他不受時(shí)間影響、限制的客觀存在的事物時(shí)，如：Long ago people didn’t know that the earth moves round the sun、She told hers on that practice makes perfect、（2）當(dāng)賓語(yǔ)從句用來(lái)解釋、表達(dá)科技內(nèi)容時(shí)，如：The teacher told us that the attraction of the earth for all bodies is called gravity、（3）當(dāng)賓語(yǔ)從句表示一種反復(fù)出現(xiàn)或目前習(xí)慣性動(dòng)作時(shí)，如：He said he does morning exercises everyday、（4）當(dāng)賓語(yǔ)從句中謂語(yǔ)動(dòng)詞的動(dòng)作在轉(zhuǎn)述時(shí)仍在繼續(xù)，或表示現(xiàn)在時(shí)刻仍存在的狀態(tài)時(shí)，如：LiLei said his father is attending a meeting in Shanghai、She told me the other day that she is only seventeen、其他從句，如比較狀語(yǔ)從句、定語(yǔ)從句等不受主句時(shí)態(tài)的影響，應(yīng)根據(jù)實(shí)際需要，選擇適當(dāng)?shù)臅r(shí)態(tài)。例如：It was colder yesterday than it is today、Last night I read the book which you are reading now、對(duì)于這些特殊情況，在平時(shí)的教學(xué)中，應(yīng)特別注意。其實(shí)，我們也可以把上述情況視為一種特殊的“標(biāo)志”，進(jìn)而判斷相應(yīng)的時(shí)態(tài)形式。綜上所述，對(duì)于一種時(shí)態(tài)，我們可以從“概念、結(jié)構(gòu)、標(biāo)志”三個(gè)方面去把握，隨著所學(xué)時(shí)態(tài)的增多，要善于將一些時(shí)態(tài)加以比較，總結(jié)出差異，同時(shí)還要注意特殊情況。這些，整個(gè)中學(xué)階段英語(yǔ)時(shí)態(tài)教學(xué)就系統(tǒng)化、規(guī)律化了。學(xué)好這些基本的動(dòng)詞時(shí)態(tài)，可為學(xué)生將來(lái)學(xué)習(xí)更為復(fù)雜的時(shí)態(tài)、非謂語(yǔ)動(dòng)詞的時(shí)態(tài)、被動(dòng)語(yǔ)態(tài)、虛擬語(yǔ)氣乃至進(jìn)一步學(xué)習(xí)中、高級(jí)英語(yǔ)，打下扎實(shí)的基礎(chǔ)。第三篇：初中英語(yǔ)八大時(shí)態(tài)練習(xí)題(含答案)初中英語(yǔ)八大時(shí)態(tài)練習(xí)題 will tell him as soon as he _____ back e _____ on shoes when she ____ …buys … buies … buys … buies girl often ______ cold when she dances dancee he ____ himself there No, I don39。t think enjoies enjoys your teacher ____ from them very often receive your mother _____ some cleaning on Sundays do Tom _____to work hard to help his family Yes, he xdoes havedoes teacher _____ lessons to you every day gives give give does not go fishing on weekdays, ____ _____ , he heNo heYes 39。t heNo 39。t heYes Black often _____ fishing on Sundays, _____ he 39。t 39。t 39。t godoes 39。t gois usually _____ TV on Sunday watching 39。ll go to play with snow if it ______ snow I nor he ______ 39。t speak 39。t speak ______ how to run this known knowing Young Pioneer _____ water for the old man every are ______ in the river and some are ______ playing I playing !The boy students are _____ football while the girls are dance dancing dancing dance _____ to do his lessons at eight every beginning beginning he _____ on well with his friends this term Smith _____ short stories, but he ____ a TV play these writingis writing writing writes is writing writes參考答案:1—5 BABDB 6—10 CDDBA 11—15 BBCCD 16—20 CBDCC _____ to the ______ there every …go going… go … am going going…am going , they______ a good time, ____ they …do …don39。t having…are having aren39。t ______ about the future now, ______ you 39。t thinkdon39。t 39。t thinking aren39。t 39。t think do 39。t thinking are always ______ something whenever she C..studiedplaied played often _____ late in the _____ me very much., worried worried ______that the