【正文】 d。例如： I had been at the bus stop for 20 minutes when a bus finally ，我在車站已等了20分鐘。如when,before,after,as soon as,till/until引導(dǎo)的 例如： When I woke up, it had already stopped 。例如：He has turned off the 。注意：(1)現(xiàn)在完成時的未完成用法只適用于延續(xù)性動詞，不可用于終止性動詞，即瞬間完成或延續(xù)時間很短的動詞。例如： By nine o’clock last night, we had gotten 200 pictures from the，我們已經(jīng)收到200 張飛船發(fā)來的圖片。（4）在含有定語從句的主從復(fù)合句中，如果敘述的是過去的事，先發(fā)生的動作常用過去完成時。She didn’t go to bed until she had finished her 。No sooner had he arrived than he went away 。s father manded had our we had a long holiday.(用過去完成時連接兩句)After we ___had had hour teats________, we ___had a longholiday___________ showed us a he showed us around the )Before he ___had showed us around the house_______, he_______showed us a picture___________。時間狀語before,when,after,by+,until, once,had no sooner……than，yet，already等。例如： After he arrived in England, Marx worked hard to improve his ，努力提高他的英語水平。She found the key that she had 。例如： I had been at the bus stop for 20 minutes when a bus finally ，我在車站已等了20分鐘。(2)現(xiàn)在完成時常見兩種句型：①主語＋have / has been＋for短語②It is＋一段時間＋ since從句例如：He has been in the League for three is three years since he joined the 。)現(xiàn)在完成時“完成用法”的特點(diǎn)是動作不延續(xù)，因此，該時態(tài)只能與表示不定的過去時間狀語(如：already，yet，before，recently等)、頻度時間狀語(如：never，ever，once等)、包括現(xiàn)在時刻在內(nèi)的時間狀語(如：this morning／ month ／year...，today等)連用。例如： After he arrived in England, Marx worked hard toimprove his ，努力提高他的英語水平。例如： died had been agood friend of 。was hiding starting。，句子的內(nèi)容為過去的實(shí)際情況或句子的內(nèi)容為歷史事實(shí)時，句中的動詞時態(tài)常用一般過去時。，用一般過去時。...when..., no sooner...than..., It was the first time + that分句等一些固定句型中。The play had already started when we got to the 。例如：The girl had changed greatly since we had met each other last 。例如：The teacher asked if we had finished doing our 。過去完成時表示在過去了的某個時間或動作之前所發(fā)生的動作，其實(shí)質(zhì)就是“過去的過去”。過去完成時和一般過去時的區(qū)別。got D had been on。t have C have had D hadn39。 you reached the station before 9:00 o39。 had not reached the station before 9:00 o39。been sent 2 We ____five English songs by the end of last had learned B learnedC have learnedD will have learned 3 Han Mei told me she _____lunch, so she was very has had B hasn39。get C had begun。重點(diǎn)和難點(diǎn)：正確使用過去完成時解決時態(tài)問題。例如：I had learned 2，000 English words by the end of last ，000個英語單詞。3.“賓語從句”或“間接引語”。since 引導(dǎo)的時間狀語從句中有時也可以用過去完成時。I had finished my homework before 。如：Tom flew home, but his father had already ，他的父親卻已經(jīng)去世了。They started ploughing as soon as they got to the 。The old man said that he wanted to go where he had never 。had already hidden started。（3）敘述過去發(fā)生的事情，在已敘述了過去發(fā)生的事情后，反過來追述或補(bǔ)述以前發(fā)生的動作時，常使用過去完成時。注意：如果兩個動作緊接著發(fā)生，則常常不用過去完成時，特別是在包含before和after的復(fù)合句中，因?yàn)?這 時從句的動作和主句的動作發(fā)生的先后順序已經(jīng)非常明確，這時可以用一般過去時代替過去完成時。(動作結(jié)束于過去，但說明的是現(xiàn)在的情況燈現(xiàn)在不亮了。如：e，go，arrive，leave，join，bee，die等。（2）表示由過去的某一時刻開始，一直延續(xù)到過去另一時間的動作或狀態(tài)，常和for, since構(gòu)成的時間狀語連用。例如： I returned the book that I had 。注意：如果兩個動作緊接著發(fā)生，則常常不用過去完成時，特別是在包含before和after的復(fù)合句中，因?yàn)?這 時從句的動作和主句的動作發(fā)生的先后順序已經(jīng)非常明確，這時可以用一般過去時代替過去完成時。It was the third time that he had been out of work th