四.　　助动词be，无词义，辅助主要动词一起在句中作谓语动词。用法如下：

1. be+doing：构成进行时态，有现在和过去两种进行时态。如：

The girls is reading and copying the new words now.

Young Tom was always asking questions and trying out new ideas.

2. be+going to do，表示"打算或将要做某事"，be有现在和过去两种形式。如：

We are going to plant trees in the park.

I didn’t know if she was going to come here.

3. be+to do，表示"按计划安排将要做某事"。如：

The new shop is not to be opened till next Monday. One night an angel came to

Mary and told her that she was to have this special boy.

五.there be

there be句式为：there be+主语部分+状语部分，表示"某处存在某物"，be常用现在时，过去时和将来时等。如：

Oh, cool! And there are many things to see. There is even a deer park in Sanya.

There are about 80 pyramids in Egypt.

Will there be a football match in your school next week?

六，实义be

可以将be视为实义动词，因为它具有实际的词义，如"成为;做;发生;举行;逗留;到达"等。如：His daughter wants to be a doctor for animals in her twenties.Kates birthday party

will be at half past six this evening.Jim has been in China for

morethan two years, but he has not yet been to Yichang.

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