下面的句子是什么语法结构?谢谢!
I am not sure which restaurant to eat at.
I am not sure which restaurant we should eat at.
W老师:
▲分析:你的两句中的 which restaurant to eat at 和 which restaurant we should eat at 通常可以分析为宾语,因为这里的 be not sure 相当于 don’t know。但有也有将其分析为状语的。
▲依据:《张道真英语语法》第369节(p.548):“be+形容词”后跟的从句(以下为原文照录):
“be+形容词”这类结构后常可跟从句,在概念上有时接近宾语,但在结构上接近状语:
I’m afraid (=fear) I have made a serious mistake. 我担心我犯了严重错误。
We are sure (=know for sure) that we shall succeed. 我们有把握会成功。
We are confident (=believe) we can overcome these difficulties. 我们有信心克服这些困难。
I’m not sure (=don’t know for sure) where she lives. 我不敢肯定她住哪里。
I’m not sure whether he still works there. 我不能肯定他是否还在那里工作。
I’m not certain who he is. 我不能肯定他是谁。
She was not certain whether he would come. 她不能肯定他是否会来。