综合英语(二)重点语法：从句(3)

综合英语(二)重点语法：从句(3)

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时间状语从句

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表示“一……就……”的连词：once, as soon as, barely/hardly/scarcely…when, no sooner…than, the minute, the moment, the instant, immediately, directly, instantly

其他表示时间的短语还有：every time, next time, the day 等。 #

一些表时间的副词和短语也可引导状语从句. #

例:The day he returned home, his father was already dead. #

We shall have completed the work by the time he ________ back next week. (2003/4) #

A. will come B. comes

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C. is coming D. will have come #

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As, when, while 虽然都表示时间，但是有区别的.As 多用于口语，强调“同一时间”或“一先一后”. #

例:1.As I was going out, it began to rain. #

(as强调两个动作紧接着发生) #

2. As spring warms the good earth, all flowers begin to bloom.(在这里是“伴随”的意思)

When 强调特定时间 #

例:1.When he was eating his breakfast, he heard the door bell rang.

While 也表示同一时间，但表示的不是一点，而是一段,所以位于谓语动词必须为延续性动词形式. #

例：While he was eating his breakfast, his friend came to visit him. #

注意 not…until… 正常结构、倒装结构、强调结构、和until置于句首的用法。

He didn’t go to sleep until he had finished his homework. #

(正常结构)

Not until he had finished his homework did he go to sleep. #

(倒装结构)

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It was not until he had finished his homework that he went to sleep.

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(强调结构) #

Until he had finished his homework he didn’t go to sleep.

(until置于句首)

原因状语从句，关联词有because, as since 等.

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because, as ,since三者区别：

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because 语气最强，重在交待原因，以why引导的疑问句只能because用来回答;其前可用only, just等词强调;可用在 It is…that…强调句型中。

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如：You shouldn't get angry just because some people speak ill of you. #

as 一词语气最弱，表示明显的原因。 #

如：As she was in a hurry, she left her key in the car.

since 表示人们已知的事实，所以常译成“既然……”。如：Since everyone is here, let's get started.

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另外，for属并列连词，不能位于句首，是对前一分句加以解释或说明。如：It must have rained last night, for the yard is wet.

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与since相近，seeing that, now that, considering that, given that 都有“鉴于某个事实、考虑到”的意思，此外，in that， on the grounds that 均可表示原因。 #

例: Considering she is so interested in children, I think she can make a very good kindergarten teacher. #

结果状语从句，关联词有that, so that, such that, with the result that. so…that, such…that等。

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She sat behind me so that I could not see the expression on her face.

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His anger was such that he lost control of himself #

I was in the bath, as the result that I didn’t hear the telephone. #

He is so kind a person that we all like him. #

He is such a kind person that we all like him. #