Section Ⅳ　Grammar & Writing

　　动词­ing形式的完成式作状语&动词­ing与动词不定式作宾语

　　阅读下列句子，体会黑体部分的用法

　　1．Having lost all my friends, I felt shy and lonely at my new school.

　　2．Having left something in the cloakroom, I went inside to get it.

　　3．This weekend, having thought about the situation for a while, I decided to ask Roy about the theft.

　　4．The girls stopped talking when the teacher came into the room.

　　5．Walking along the road, the girls stopped to look in a shop window.

　　6．Do you remember going to school for the first time?

　　7．Remember to give me a ring when you get home.

　　一、动词­ing形式的完成式作状语

　　动词­ing形式的完成式由"having＋过去分词形式"构成。它表示的动作发生在句中谓语动词之前。常在句中作时间、原因、让步状语等。

　　动词­ing形式的完成式的否定式为"not＋having＋过去分词形式"，其被动式为having been done。

　　Not having received a reply，she decided to write another email.

　　没有收到回复，她决定再写一封电子邮件。

　　Having been informed of the decision，I decided to make preparations.

　　被告知这个决定后，我决定做些准备。

　　Having worked in the countryside for three years，he learned how to grow vegetables.

在乡下工作了三年之后，他学会了如何种菜。