助动词be能够构成特殊句型。如:
1、be going to dobe going to do表示“打算或将要”。如:
2、be about to do
He isgoing to visit us next week.
It isgoing to rain soon.
be about to do表示“刚要,即将”。与be going to do表“将要”不同的是,be about to do表示的是说完话后马上就要去做或是短期内马上就要去做。如:
3、be to do
The plane isabout to take off in five minutes' time.
be to do表示“按计划要做”。如:
One night an angel came to Mary and told her that she wasto have this special boy.
The new store isto be opened tomorrow.
与上面用法都不同的是,be可以与there一起构成there be句型,用来表示存在。考虑到There be句型较为重要,内容较多,在此不做赘述,后面再找时间跟大家单独分享。今天就先给几个常见的例句。
(二)祈使句中的be
There is a white ruler on the desk.
There were a great many people in the car race last year.
这种情况下,句子一般以Be开头或是Don't be开头,表示命令或建议等。如:
(三)虚拟语气中的be
Bepatient! (耐心点!)
Don't be so hard on me! (不要对我们这么严厉!)
be有时可以放在句首,引起虚拟语气。如:
Be he rich or poor, she will marry him.
Be it true or not, she will see it herself.
此时的be引导的句子其实相当于一个让步状语从句。以上两句话就相当于:
Whether he be rich or poor, she will marry him. (无论他是否有钱,她都会嫁给她。)
Whether it be true or not, she will see it herself. (无论这是否是真的,她都会亲自去见证。)
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