常考词的语法与用法212

来源:网络 2019-03-20

so do I & so I do

1. “so+特殊动词+主语”,表示前面提出的某一肯定的情况,后者也同样适用。如:

He likes travelling, and so do I. 他喜欢旅游,我也喜欢。

He went home and so did everyone else. 他回家去了,其他的人也回去了。

She is beautiful and so was her mother before having children. 她很美,她母亲在生小孩以前也很美。

注:若为否定的情况,则用 neithernor。如:

He doesnt like it and neither [nor] do I. 他不喜欢这东西,我也不喜欢。

2. “so+主语+特殊动词”,表示强调或同意,其意为“的确如此”、“正是这样”。如:

AIt was cold yesterday. 昨天很冷。

BSo it was. 的确很冷。

AHe works hard. 他工作很努力。

BSo he does, and so do you. 他工作的确努力,并且你也一 样。

so as to & so that

1. “so as to+动词原形”和“so that+句子”,两者都用来引导目的状语,也可用来引导结果状语。如:

The test questions are kept secret, so as to prevent cheating. 考卷保密,以防舞弊。(表目的)

He shouted so as to be heard a mile away. 他高声喊叫,一里路之外都听得到。(表结果)

Speak clearly so that they may understand you. 说清楚,以便让他们能明白你的意思。(表目的)

He went to the lecture early so that he got a good seat. 他去听演讲去得很早,所以找个好座位。(表结果)

注:以上两类结构有时可互换。如上面最后一句也可改写成:

I went to the lecture early so as to get a good seat.

2. “so……as to+动词原形”和“so……that+句子”,主要用来引出结果状语。如:

The rain was so heavy as to make our picnic impossible. 雨太大,我们无法出去野餐。

He writes so carefully that he makes no mistakes. 他写得 很仔细,没有出一点差错。

注:有时以上两类结构可以互换。如上面最后一句也可写成:

He writes so carefully as to make no mistakes.

在“so……that+句子”结构中,so 后除可接形容词或副词外,还可接“形容词+a(n)+名词”。如:

He is so clever a boy that we all like him. 这孩子很聪明我们都很喜欢他。

另外,该结构还经常与 many, much, few, little 等连用。如:

He had so many falls that he was black and blue all over. 他摔了许多跤,以致于全身都是青一块紫一块的。

3. so as to 的否定式是 so as not to, 而不能是not so as toso not as to 等。如:

Go in quietly so as not to wake the baby. 悄悄地进去,以免吵醒孩子。

4. 以上各结构通常不位于句首,但有以下例外:

(1) so that 表示目的时,有时可位于句首,但仍不如放在后面常见。如:

So that he could buy a new car, he saved a lot of money. 为了能买辆新车,他存了不少钱。

注:表示结果的 so that 绝不能放在句首。

(2) “So+形容词或副词”位于句首时,通常引出倒装句。如:

So fast does light travel that we can hardly imagine its speed. 光速很快,我们几乎没法想像它的速度。




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