疑問詞加動詞不定式

1、【精品文檔】如有侵權(quán)，請聯(lián)系網(wǎng)站刪除，僅供學(xué)習(xí)與交流疑問詞加動詞不定式.精品文檔.一、"疑問詞+不定式"的構(gòu)成：由疑問代詞who, whom, what, which; 疑問副詞when, how, where等+不定式構(gòu)成。Choosing what to eat is no longer as easy as it once was. 選擇吃什么,已經(jīng)不像以前那么簡單了。How to describe people is today's topic. 如何描述人物是今天的話題。二 、"疑問詞+不定式"的功能：在句中可作主語、賓語、表語等成分。

2、1.作主語How to give advice in English is what I am trying to learn. 我正在努力學(xué)習(xí)如何用英語提建議。2.作賓語作動詞的賓語We have to start somewhere if we want to learn how to write plays. 我們要學(xué)習(xí)寫劇本，總得有個開頭。作介詞的賓語We had better learn to make the right choices about what and how we eat. 我們最好能學(xué)會正確選擇吃什么、怎么吃。When you are trying to advi

3、se someone about what to do or what not to do, you can use should / ought to or should not /ought not to. 當你想要建議某人做什么或者不做什么時，你可以用should / ought to 或者 should not / ought not to。3.作表語My question is where to find the answer. 我的問題是在哪里能找到答案。三、"疑問詞+不定式"的使用方法。 "疑問詞+不定式"構(gòu)成的短語在句中當"名詞

4、"用，可以寫成相應(yīng)的從句。I am not sure how to behave at the dinner table. (= I am not sure how I should behave at the dinner table.) 對餐桌禮儀，我心中沒底兒。 這種結(jié)構(gòu)中，疑問代詞須接及物動詞或相當于及物動詞的短語(who, which除外)疑問代詞須接及物動詞或相當于及物動詞的短語【誤】 I don't know what to talk. 【正】 I don't know what to talk about.但可以說：We haven't decided who (which) to go. 我們還沒定誰(哪個)去。 這種結(jié)構(gòu)中的疑問副詞后要接不及物動詞；若接及物動詞, 要有動詞的賓語。疑問副詞后要接不及物動詞；若要接及物動詞，要有動詞的賓語I don't know how to talk. 我不知如何談。I wonder