内容正文:
高中英语doubt句型用法
doubt是个常用词,也是历年高考经常考查的词语之一。doubt既可用作动词,也可用作名词。现将其用法归纳如下。
一、doubt用作动词
1. doubt+名词或代词。
例如:I doubt his word. 我怀疑他的话。
They doubted him before. 他们以前曾经怀疑过他。
2. doubt+宾语从句
(1) 在否定句和疑问句中,doubt后面接that引导的宾语从句。
例如:
I don”t doubt that he can finish the task on time. 我相信他能按时完成任务。
Do you doubt that she will succeed? 你怀疑她会成功吗?
(2) 在肯定句中,doubt后面一般接whether或if引导的宾语从句。
例如:
I doubt whether they can swim across the river. 我怀疑他们能否游过河去。
He doubts if she will keep her word. 他不敢肯定她是否会遵守诺言。
注意:在肯定句中,doubt后面也可以接that引导的宾语从句,但表示疑虑较大或“不相信”。例如:
We doubt that they can complete the work ahead of time. 我们不相信他们能提前完成这项工作。
I doubt that he will come. 我看他未必会来。
二、doubt用作名词
1. doubt常与about/of/as to/on等介词连用。
例如:
There is no doubt about it. 此事无可怀疑。
I have no doubt of his ability. 对于他的能力我毫不怀疑。
She has her doubts as to this being true. 她怀疑这事是否真实。
No one has any doubt on this point. 这一点没有人会怀疑。
2. doubt后面接同位语从句
(1) doubt用在否定句中,后面接that引导的同位语从句。
例如:
I have no doubt that he will succeed. 我相信他会成功的。
There is no doubt that