心灵驿站电影:be在句子中起什么作用
来源:百度文库 编辑:高校问答 时间:2024/05/05 22:54:27
BE可以是系动词,如:He is a teacher. They are at home. I'm 16 years old.等。
be 还可以是助动词,帮助构成不同的时态和语态。如:She is reading. English is spoken widely in the world.
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来源:百度文库 编辑:高校问答 时间:2024/05/05 22:54:27
BE可以是系动词,如:He is a teacher. They are at home. I'm 16 years old.等。
be 还可以是助动词,帮助构成不同的时态和语态。如:She is reading. English is spoken widely in the world.