高中網(wǎng)課數(shù)學(xué)誰教得好

英語中有些句子形式上是否定的，但是內(nèi)容含義上卻是肯定的?，F(xiàn)將這種常見的句式結(jié)構(gòu)歸納如下：

一、 cannot wait 后跟不定式， 意為“急于做”，表示強(qiáng)調(diào)的肯定

例1 I couldn‘t wait to see her. 我渴望見到她。

例2 I cannot wait to read the book. 我非?？释x到這本書。

二、 cannot/couldn‘t too意為“越……越……　，非常，無論怎樣……也不過分”

在此結(jié)構(gòu)中，cannot 也可改用can hardly，scarcely，never，impossible;too也可改用over，enough等。

例3 You cannot be too careful. 你越小心越好。

例4 We can hardly praise him too much.對(duì)他我們無論怎么贊揚(yáng)也不過分。

例5 A man can never have too many friends. 朋友越多越好。

例6 He cannot see you quickly enough. 他想很快見到你。

三、 not… until/ till 意為“直到……的時(shí)候才”

例7 People take no thought of the value of time until they lose it. 人們失去時(shí)間后才知道時(shí)間的價(jià)值。

例8 We never know the worth of water till the well is dry. 直到井干了我們才知道水的重要。

例9 It was not until the next day that I knew that truth. 直到第二天我才知道真相。

例10 He did not go to bed until his mother came back. 直到他母親回來他才睡覺。