“疑问词+不定式”可用作哪些句子成分

发布时间:2022-04-29T12:25:59 英语语法

“疑问词+不定式”可用作哪些句子成分  

一、用作主语。如:  

When to start has not been decided. 何时动身尚未决定。

What to read is an important question. 该读些什么是一个很重要的问题。

How to begin is more difficult than where to stop. 如何开始比到哪里停止还困难。

二、用作表语。如:

The question is what to do next. 问题是下一步怎么办。

The question is how to carry out the plan. 问题是怎样执行这个计划。

三、用作宾语。如:

1. 用作动词宾语。如:  

He asked how to open the box. 他询问如何打开盒子。

She couldn’t think what to say. 她想不出说什么。

Our teacher explained how to use the word processor. 老师向我们说明如何使用文字处理机。

2. 作于间接宾语后作直接宾语。如:  

I’ll show you how to do it. 我将给你讲这怎么做。

She kindly advised me what to do. 她好心的劝告我该做什么。

My sister taught me how to fold paper into a crane. 我姐姐教我如何折纸鹤。

3. 用作介词宾语。如:  

I have no idea of how to do it. 我不知道如何做此事。

Bill said something to her about what to do. 比尔给她讲了讲应当怎样做。

I found a book on how to avoid having a heart attack. 我找到一本书谈如何避免心脏病复发。