由prep-2-90看as well as的用法

lewton

90.  (29271-!-item-!-188;#058&004232)

Diesel engines burn as much as 30 percent less fuel than gasoline engines of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gases that have been implicated in global warming.

(A) of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gases that have

(B) of comparable size, as well as emit far less carbon dioxide gas and far fewer of the other gases having

(C) of comparable size, and also they emit far fewer carbon dioxide and other gases that have

(D) that have a comparable size, and also they emit far less carbon dioxide gas and other gases that have

(E) that have a comparable size, as well as emitting far fewer carbon dioxide and other gases having

答案是A,笔者初选为B,为了burn与emit在 as well as 中的对称，但从意思上来看，后半句应是前半句的结果或者伴随状态，所以应该用分词形式．特找来关于as well as的用法，贴于下

as well as 用法

as well as 是英语中常用的连接词，学生在使用时常常会出现错误，本文将其用法作以下简要归纳和说明。

1. as well as 可连接并列的单词或短语。例如：

It is unpleasant in summer as well as in winter.

夏天不好过，冬天也不好过。

The child is lively as well as healthy.

这孩子既健康又活泼。

2. as well as 连接两个谓语动词时，它们的时态应保持一致。例如：

He publishes as well as prints his own books.

他的书是他自己印刷出版的。

We are repairing the roof as well as painting the walls.

我们在粉刷墙壁同时也在修理屋顶。

as well as 与动词连用时，其后可用V-ing形式，尤其as well as 位于句首时，此时相当于in addition to。例如：

As well as breaking his leg, he hurt his arm.

他不但摔断了腿，而且还伤了胳膊。

She sings as well as playing the piano.

她不但会弹钢琴，而且会唱歌。

3. 如果as well as 前面是动词不定式，那么其后的动词也是不定式，但to要省略。例如：

You cannot expect her to do the housework as well as look after the children.

你不可能叫她既照顾孩子又做家务。

4. 由as well as 连接的复合主语并不影响谓语动词的数。例如：

Helen as well as I is eager to see the performance.

海伦和我一样急于要看演出。

I as well as they am ready to help you. 不仅他们愿意帮助你，我也愿意帮助你。

5. as well as 连接的人称代词既可以是主格也可以是宾格，但句意不同。例如：

They have invited you as well as me.

他们邀请了我，也邀请了你。（you和me都作invited的宾语）

They have invited you as well as I.

他们和我一样都邀请了你。（they和I都作invited的主语）

6. as well as 用于肯定结构和否定结构中，其意义不同。as well as 和not搭配使用，as well as 位于not前时，两者均否定；位于not后时，否定前者，肯定后者。例如：

George, as well as his brother, has gone abroad.

乔治和他兄弟一样都出国了。

George hasn”t gone abroad as well as his brother.

乔治并没有和他兄弟一样出国去。（他兄弟一人出国）

George, as well as his brother, hasn”t gone abroad.

乔治和他兄弟都没有出国。

7. as well as 在意义上通常强调前者，而not only …but also在意义上则强调后者。例如：

He”s got a car as well as a motorbike.

他不但有一辆摩托车，而且有一辆小汽车。

（= He”s got not only a motorbike but also a car. ）

8. 注意as well as 有时会引起歧义句。例如：

He can speak french as well as English.

（1）他会说英语，也会说法语。

（2）他说法语能说得像英语一样好。（…as well as he speaks English）

as well as用法三则
   
一、用作连词
   
al well as可以用来连接两个相同的成分，如名词、形容词、动词、介词，通常不位于句首。此时，as well as连接的虽然是两个并列成分，但强调的重点在前面，不在后面，意思为“不但……而且……”、“既……又……”、“除了……之外，还有……”翻译时要先译后面，再译前面。例如：
   
1. Living things need air and light as well as water.
    生物不仅需要水，还需要空气和阳光。（连接名词）
   
2. She helped Tom as well as I. = She and I helped Tom.
    我帮了汤姆的忙，她也帮了汤姆的忙。（连接主格代词）
   
3. She helped Tom as well as me. = She helped Tom and me.
    她帮了我的忙，也帮了汤姆的忙。（连接宾格代词）
   
4. She continued her own work as well as hepled me.
    她除了帮助我，还继续自己的工作。（连接动词）
   
5. He finds the mass of materials before, as well as after exeperiments.
    他不但在实验后，还在实验前求出材料的质量。（连接介词短语）
   
6. The child is lively as well as healthy.
    这孩子既健康又活泼。（连接形容词）
   

二、用作介词
   
此时，as well as相当于besides，in addition to，意思为“除……之外”，后面通常接名词或动词，尤其是位于句首时。
   
As well as / Besides / In addition to eating five course meals, they drank seven bottles of wine.
    除了五道菜外，他们还喝了七瓶酒。
   

三、well用于as……as的结构中
   
这种as well as结构表示比较，引起一个比较状语从句。例如：
   
He can operate the machine as well as I do.
    他操纵这台机器和我一样熟练

[此贴子已经被作者于2007-5-25 20:52:48编辑过]

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