Maggie_23
幼苗
共回答了24个问题采纳率:83.3% 举报
1、
The city was surrounded by the enemy for zbout a month.是被动语态;
2、People say it is Canada's most beautiful city,【surrounded】by mountains and the Pacific Ocean.
可以看作是“被动语态,但中间省略了一个“ is ”——因为前面已经有一个了;也可以看作是过去分词短语作状语,说明伴随的状况,这样也无须加be.
3、“Vancouver 【surrounded】 by mountains and the Pacific Ocean”是过去分词短语作定语,所以不加be.但,所有“过去分词”+“by”这样的短语都含有被动的意思.
1年前
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