发布网友 发布时间:2024-05-12 15:55
共1个回答
热心网友 时间:2024-07-11 03:34
be动词的用法总结表格
1、助动词be
be动词做助动词时,无具体词义。
1️⃣ 进行时态
The engineers are also trying to develop an on and off "switch" where the glow would fade when exposed to daylight.
2️⃣ 完成进行时态
Mr. Ball argues that some of the reasons have been building for the last few years.
3️⃣ 被动语态
The child was found by the search party.
be动词做系动词时,用于「主系表」句型,接续方法为:S + be + Cs,表语Cs可以是名词、形容词、介宾短语、名词性从句等。此时,be只有「是」一个基本词义。
.be动词做不及物动词时,词义比较复杂,一般用于「主谓」句型,部分情况下可以分析为「主谓补」句型,或者将be动词与介词整体理解为动词词组。