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三、非谓语的时态语态: ①动词-ing所表示的动作与谓语动词的动作同时发生,或
-ing形式的动作发生在谓语动词的动作之后--ing形式 用一般式。 when playing games, I was very excited. when I was playing games, I was very excited. 有时前面一般加上when, while,if, before等. be careful when crossing the street. = be careful when you are crossing the street. ②动词-ing的动作发生在谓语动词之前, --ing形式用一般 式要用完成式。 having played games, I went to sleep. =After I had played games, I went to sleep.
Working hard at your lessons, you will succeed.
Knowing all this, they made me pay for the damage.
He lay on the grass, staring at the sky for a long time.
--ing形式作状语
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一、动词的-ing形式可以作状语,修饰动词或句 子,在句中表示时间、原因、结果、条件、让 步、行为方式或伴随情况等。
①-ing形式作时间、原因、条件、让步状语 时多位于句首。
②作结果、伴随情况状语时常位于句末。
1.表示时间,相当于一个时间状语从句。 Seeing those pictures, she emembered
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四、与过去分词的区别: