Question

雅思写作核心语法知识（三

Answer 1

C:非谓语动词归纳总结
在英语中，不做句子谓语，而具有除谓语外其他语法功能的动词，叫做非谓语动词。非谓语动词有动词不定式To do, Ving和Ved三种。

（一）不定式：不定式由不定式符号to加动词原形构成，及物动词的不定式可以带宾语。不定式的否定结构是在to前面加上not.不定式在句中可以做除了谓语外的任何成分。不定式一般在写作中可以做主语，宾语，后置定语，目的状语，宾语补足语和插入语。

1（主）不定式做主语，一般用it当形式主语，把做主语的不定式短语后置。
It is vitalto receive education in this ever-accelerated society.
It is no exaggerationto say that friendship is to people what perfume is to flowers.

2（宾）
I preferto choose the latter for the following reasons.
In this way, children can learnto cooperate with others.

3（后置定语）
The deepest urge in human nature is the desireto be important.
The important thing in life is the determinationto attain a great aim.

4（目的状语）
To associate with friends, we should be honest and open.
To achieve happiness, one has a long way to go.

5（宾语补足语）
Difficulties train oneto be great.
The updating society requires peopleto accept new things positively.

6（插入语）
To start with, the eye-catching development of technology is a good case in point.
Needless to say, we can never do without media.

（二）V-ing:V-ing由动词加ing构成，及物动词的ving可以带宾语。ving在句中可以做除了谓语外的任何成分。ving一般在写作中可以做主语，宾语，定语，状语，和插入语。

1做主语：Helping othersis happiness in itself.
Losingcan be a real beginning.
2做宾语：Change requiresadapting oneself to a new environment.
Reading a book is likeopening a window to the outside world.
3做定语：
A前置(将Ving放在名词前修饰名词 相当于一个形容词)
Change is anexcitingbusiness.
The Internet is developing at aneye-dazzlingspeed.
B后置 （将Ving放在名词后修饰名词 相当于一个省略了的定语从句)
Peopleholding the latter viewdo strongly believe that international tourism has more benefits. = Peoplewho hold the latter viewdo strongly believe that international tourism has more benefits.
Childrenspending too much time surfing the Internetmay suffer from some psychological illnesses. = Childrenwho spend too much time surfing the Internetmay suffer from some psychological illnesses.
4做状语： (只要主句的主语是Ving的发出者，Ving可以做所有的状语)
Having entered the 21stcentury, we are now blessed with more opportunities and confronted with more challenges.
Surfing the Internet, we are often annoyed by various advertisements.
Serving in the army, women can perform. as well as men do.
5做插入语：
A常规(一些可以做插入语的副词后加上Speaking而意思不变)
1 Properly speaking,
2 Generally speaking,
3B特殊 （一些由Ving构成的特殊插入语)
1 Speaking of…
9 （三）V-ed: Ved由动词加ed构成。Ved一般在写作中可以做定语，状语，和插入语。

(1)做定语：
A前置(将Ved放在名词前修饰名词 相当于一个形容词)
Chance favors thepreparedmind.
It seems that we have embarked upon anever-acceleratedera.
B后置 （将Ved放在名词后修饰名词 相当于一个省略了的定语从句)
Difficultiesmasteredare opportunities. = Difficultieswhich are masteredare opportunities.

Childrenencouraged to study alonecan cultivate their independence and toughness. = Childrenwho are encouraged to study alonecan cultivate their independence and toughness.

(2)做状语：(只要主句的主语是Ved的承受者，Ved可以做所有的状语)
Well done, the smallest task becomes a miracle of achievement.
Encouraged to learn competition, children will adapt themselves to the society better in the future.
(3)做插入语：
1 Compared with…,
2 Compared to…,
3 Given…,
4 Given closer analysis,
5 Based on the above factors,
6 Based on the above discussion,
7 Simply stated,
8 Simply put,