速腾信息网
2022-04-07
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英语复习知识点概要do sb. a favour和doubt 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.(×) do walking 步行。“do + 动名词”结构表示“干某事，有较灵活的译法。 do reading(读书)/washing(洗衣服)/cooking(做饭)/shopping(买东西)/cleaning(打扫除)等。 Do what I told you to . Don’t be late again. Make sure the door is shut. 让对方做或不做某事时 dozens of几十；许多。 ①She bought dozens of dresses.她买了许多衣服。 ②I’ve borrowed dozens of books for my daughter.我为女儿借了许多书。 doubt v.& n.怀疑，不相信 of…对……（抱）怀疑或悲观（态度） doubt 从句在否定句及疑问句中多跟that 引起的从句，在肯定句中多跟 whether(if)引起的从句。 ①I doubt the truth of this report. ②They have never doubted of success. ③I don’t doubt that you are honest. ④Can you doubt that he will win? ⑤I doubt if that was what he wanted. 该词作名词时有以下短语 beyond(all)doubt毫无疑问；in doubt怀疑，犹豫，不肯定；no doubt肯定地，想必；without doubt毫无疑问，一定地 ①The truth of the story is beyond doubt. ②I was in doubt about what to do. ③No doubt I learned a lot from that lecture. ④Without doubt these theories were all wrong. 
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