英语句子开头怎样判断是用现在分词或过去分词或不定式?

如题所述

句首分词多表示时间 (a),原因 (b), 伴随状况 (c),或条件 (d) :

一、表心理活动的现在分词常作句首状语
例1 Fearing that she might be punished by her teacher , she dare not go to school .

二、表感觉器官的现在分词常作句首状语
例1 Seeing the girl”s body , I was frightened to hold my breath .
一看到女孩的尸体,我吓得屏住了呼吸。

三、表动作的现在分词常作句首时间状语,表分词所表示的动作与谓语动词的动作同时发生。
例1 Waiting for a bus , I had a talk with her .
等汽车时我跟她进行了交谈。

四、过去分词放句首经常表被动,一些不表被动的过去分词常作句首状语
这样的过去分词常见的有:tired of , born in , caught in a rain , seated , hidden , dressed in , dressed like , stationed , satisfied with , interested in , surprised at , devoted to , lost / absorbed in .

五、Being + adj /n 常作原因状语
例1 Being busy , he can”t come . 因为很忙,他不能来了。

六,不定式放句首一般表目的、将来要做的事。
句首不定式多表示目的 (a), 或修饰整个句子表明说话人的态度 (b) ,表示结果的情形较少见 (c) :
a) To climb the rock face, we had to take various precautions.
b) To sum up, it is absolutely necessary.
c) Only to show his ignorance of the subject, he made a long speech.(倒装显得生硬)
温馨提示:答案为网友推荐,仅供参考
第1个回答  2016-10-14
这个由该动词和主语的关系决定。

例如
Written by Hanhan, the novel sells well.
这本书是韩寒写的,卖得好。
书是被韩寒写,所以用written 而不用writing。
再例如:
Studying hard every day, I got good grades in th exam.
每天努力学习,我在考试中取得了好成绩。
I 和 study之间就是主动关系,我学习,而不是被我学习。所以用studying,不用studied。

不知道解释清楚没有。追问

是主谓和动宾两种关系?

本回答被提问者采纳
相似回答