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| 标题 | 2013高考英语备考：do all 用法说明 | |||||||||||||||
| 内容 |
do all sb.can to do sth.:do what sb.can to do sth.尽某人的所能做某事 all 后面为that 所引导的定语从句，that在从句中作宾语已被省略;can后面为避免重复省略了do;后面的to do sth.为不定式(短语)作目的状语。all(that)sb.can(do)相当于宾语从句what sb.can(do)。 ①I’ll do all I can to help you.我将尽力帮助你。 ②He did all he could to improve his spoken English. 他尽了最大努力来提高英语口语水平。 Do give her my regards.请一定代我她问好。 助动词 do 及其变化形式可在肯定句中用来强调动词，意为“务必;一定;的确;真的”,加强了句子的语气。 ①Do be careful! 一定要小心 ② I do like you.我真的喜欢你。 ③She does work very hard.她学习确实很努力。 ④—Why didn’t you tell him?你为什么不告诉他? —I did tell him.我告诉他了。 do sb. a favour或do a favour for sb.给某人帮个忙，如果有to do sth.则常用。 do sb.the favour to do sth.如： ①I wonder if you can do me a favour?我不知道你能不能帮我个忙?(没有说干何事) ②Please do me the favour to open the door, I want to go out. 麻烦你给我开一下门，我要出去。 do up 收拾(东西)。整理、梳装打扮、系(扣)好…… ①He was so hurried that he did up his buttons wrongly. 他太着急了以致于扣错了纽扣。 ②She spent a long time doing up her hair.她花了很长时间把头盘起来。 Do you think so? ①“so”用于避免重复前面所说过的内容，等于代替肯定的名词性从句，可与believe,do,expect,fear,guess,hope,say,speak,suppose, think等及It appear…,It seems和I’m afraid连用。 “Will they go to see him?” “I believe so.(?I believe[that]they will go to see him.)” ②表示否定时，用not代替so,但在believe,suppose,think等动词之后，如I don’t think(believe,suppose)so等，通常仍可与so连用。 ③不能和表示确信、疑问的词语连用。 I doubt about it.(√) I doubt so.(×) 文章相关链接：www.liuxue86.com/k_2013高考英语备考/ ?
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