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關閉窗口 “疑問詞+不定式”可用作哪些句子成分
一、用作主語。如：
When to start has not been decided. 何時動身尚未決定。
What to read is an important question. 該讀些什么是一個很重要的問題。
How to begin is more difficult than where to stop. 如何開始比到哪里停止還困難。
二、用作表語。如：
The question is what to do next. 問題是下一步怎么辦。
The question is how to carry out the plan. 問題是怎樣執行這個計劃。
三、用作賓語。如：
1. 用作動詞賓語。如：
He asked how to open the box. 他詢問如何打開盒子。
She couldn’t think what to say. 她想不出說什么。
Our teacher explained how to use the word processor. 老師向我們說明如何使用文字處理機。
2. 作于間接賓語后作直接賓語。如：
I’ll show you how to do it. 我將給你講這怎么做。
She kindly advised me what to do. 她好心的勸告我該做什么。
My sister taught me how to fold paper into a crane. 我姐姐教我如何折紙鶴。
3. 用作介詞賓語。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. 比爾給她講了講應當怎樣做。
I found a book on how to avoid having a heart attack. 我找到一本書談如何避免心臟病復發。
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