卫生类职称英语考试语法（16）
2015-03-03 16:25 来源：医学教育网
卫生类职称英语考试语法：
动名词：动词原形+ing构成。
1.作主语
Interpreting figures is an important part of the accountant's function.
2.作表语
His interest is reading novels.
3.作宾语
可以用在begin, start, stop, finish, like等动词后面。
They haven't finished packing the goods.
He likes playing basketball.
4.作介词宾语
Take your time to balance the two plans carefully before arriving at a final decision.
不定式：to+动词原形构成的。
（1）作主语
To have a firm self-confidence is a first step toward a successful negotiation.
当不定式主语太长时，可用it作形式主语放在主语的位置，构成：It+谓语+不定式主语+其他成分。
It is risky to build too many hopes upon his promise.
It is impossible to get him to understand what I mean.
（2）作宾语
The supermarkets owner planned to postpone the grand opening until Saturday.
（3）作表语
His job was to examine cars to make sure that they were not smuggling anything into the country.
（4）作定语
The shopkeeper offered me a credit note to be used to buy goods in his shop.
（5）作状语
To improve business, the store owner decreased his prices.
（6）带疑问词的不定式
疑问代词who, what, which和疑问副词when, why, how, where的后面可以接不定式，构成一个名词性短语，可在句中作主语、表语、宾语或定语。
What to do next will be discussed at today's meeting.
It is not decided yet whether to go there or not.
The question is how to send the goods.
You had better find out where to change your money.
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