英语四级

3773考试网英语四六级英语四级正文

2014年12月英语四级考试必备核心语法4

来源:2exam.com 2014-8-14 16:17:48

1)我记得他哥哥上小学时经常在课堂上提问题。

  I remember his brother was constantly asking questions in class when he was at primary school.

  2)我母亲做饭的时候,我父亲在抽烟。

  While my mother was cooking, my father was smoking.

  3)我正在写东西,小明把灯关了。

  When I was writing, Xiao Ming turned off the light.

  4)夕阳西下,天渐渐黑下来了。

  The sun was setting. It was getting dark.5)你走进他们的房间时,他们正在听广播吗?

  Were they listening to the broadcast when you entered their room?

  6)她给你打电话的时候,你在干什么?

  What were you doing when she called you on the phone?

  过去完成时

  (1)构成:一律用had + 过去分词构成。

  (2)用法:

  1)表示发生在过去某一时间或动作之前的事情,即“过去的过去”。用过去完成时,必须有一个过去的时间或动作来作参照,说明在此之前某事已发生。如果两个动作都是在过去发生的,先发生的用过去完成时,后发生的用一般过去时。例如:

  She told me she had been there three times before. 她告诉我她以前到过那里三次。(“去过”发生在“告诉”之前)

  How long had he taught here by the end of last term? 到上学期末为止,他在这里教学多长时间啦? (“教学”发生在上学期末结束之前)

  When we arrived, the football match had already begun. 我们到的时候,足球赛已经开始了。

  She had visited China twice before she came this year. 她今年来中国之前已访问过中国两次了。

  2)过去完成时动词可以表示过去某一时刻之前发生的动作或呈现的状态,这一动作一直持续到过去这一时刻或将继续下去。例如:

  By the middle of last month, I had lived in Beijing for five years. 到上月中旬,我已在北京住了五年了。

  By six o’clock they had worked for eight hours. 到六点为止,他们已工作八小时了。

  When I came to Shanghai, he had been there for a long time. 我到上海时,他在那里很长时间了。

  3)过去完成时动词常用于间接引语和虚拟语气,我们以后会详细讲述。

  4)此外,过去完成时常用于 no sooner…than… 和 hardly(scarcely) …when… 这两个句型,前面部分用过去完成时,后面部分用一般过去时。例如:

  No sooner had he stolen the purse than he was caught red-handed. = He had no sooner stolen the purse than he was caught red-handed. 他刚偷到钱包就被当场抓获。

  Saddam had hardly realized what was happening when he was captured. = Hardly had Saddam realized what was happening when he was captured. 萨达姆还没有意识到在发生什么事情就被抓获了
 1)很幸运,下雨前我们已经到家了。

  Luckily, we had got home before it began to rain.

  2)张华说他的笔记本丢了。

  Zhang Hua said he had lost his notebook.

  3)他曾告诉过我,会议两点钟开。可是当我到了以后,我还得等到两点半。

  He had told me that the meeting was at 2, but when I arrived I had to wait till 2:30.

  4)他在这里住了两三天,才觉得没有什么拘束(feel at home)。

  When he had stayed here for two or three days, he began to feel at home.

  过去完成进行时

  (1)形式:had been + 动词的现在分词。

  (2)用法:表示一直持续到过去某个时间的行为动作,此行为动作或刚结束、或还没结束(可以从上下文看出)。这一时态经常与一般过去时一起使用。例如:

  When he came in, I had been trying to repair the TV for a couple of hours. 他进来的时候,我一直在努力修理电视机好几个小时了

  The roads were dangerous. It had been raining for two whole days. 道路很危险。雨一直下了两整天。

  They were tired because they had been digging since dawn. 他们累了,因为从天亮开始他们就一直在挖。

  The boy was delighted with the new mountain bike. He had been hoping for one for a long time. 那男孩得到一辆新山地自行车很高兴。很长时间来他一直希望有一辆。

  一般将来时

  一般将来时动词表示将来发生的动作或情况。主要有以下几种表现形式:

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