Unit 5 The power of nature Grammar学案

-复习动词-ing形式

　　语法图解

　　探究发现

　　①Walking in the park, she saw an old friend.

　　②Having finished the work, he went out to meet his friends.

　　③Beingill, he was sent to hospital.

　　④My granny sat in the armchair,reading the newspaper.

　　⑤Going there by plane, you'll arrive tomorrow morning.

　　⑥Having been told many times, he still made the same mistake.

　　⑦Though he had been told many times, he still made the same mistake.

　　⑧The train was caught in a heavy snow, thus causing the delay.

　　[我的发现]

　　(1)①、②句中的现在分词短语在句中作时间状语。

　　(2)句②和句⑥中的现在分词短语使用完成时，原因是分词短语所表示的动作先于句子的谓语动作发生。

　　(3)③、④、⑤、⑥、⑧句中的现在分词短语分别在句中作原因状语；伴随情况或方式状语；条件状语；让步状语；结果状语。

　　(4)比较⑥、⑦句，分词短语与状语从句的最大区别是句中是否有连词。

　　一、动词­ing形式的时态、语态及意义

动词 形式 意义 以do为例 一般式doing 主动式doing 与句子主语构成逻辑上的主谓关系，与谓语动作同时发生，或基本上同时发生 被动式being done 与句子主语构成逻辑上的动宾关系，且与谓语动作同时发生