1.used to可看作一个半助动词或情态动词,其后跟动词原形,表示过去的习惯或经常发生的动作,例如: When he was a child, he used to ask lots of questions. I want to kn
树图思维导图提供 1.used to可看作一个半助动词或情态动词,其后跟动词原形,表示过去的习惯或经常发生的动作,例如: When he was a child, he used to ask lots of questions. I want to kn 在线思维导图免费制作,点击“编辑”按钮,可对 1.used to可看作一个半助动词或情态动词,其后跟动词原形,表示过去的习惯或经常发生的动作,例如: When he was a child, he used to ask lots of questions. I want to kn 进行在线思维导图编辑,本思维导图属于思维导图模板主题,文件编号是:8a9a7cf8d273cdc30a3bfcdc9e548d4f
1.used to可看作一个半助动词或情态动词,其后跟动词原形,表示过去的习惯或经常发生的动作,例如: When he was a child, he used to ask lots of questions. I want to kn思维导图模板大纲
When he was a child, he used to ask lots of questions.
I want to know the places (that/which) he used to go to.
否定式为:used not to(书面语), use(d)n’t to(口语), didn’t use to(口语)
疑问式为:Used sb to …?(书面语), Did sb use to …?(口语)
反意疑问句式为:use(d)n’t sb? (书面语) didn’t sb? (口语)
We are used to the weather in the south of China.
They have got used to getting up early in the morning.
疑问式为:Be(具体形式) sb ….? 否定式为:sb be(具体形式) not …
反意疑问式为:be(具体形式) not sb? (be作为系动词看待)
疑问式为:Do/Does/Did sb get …? 否定式为:sb does/do/did not get …
反意疑问式为:do/does/did not sb? (get作为行为动词看待)
This knife is usually used to cut fruit.
This magazine was used as a fan last night because of the hot weather.
Blooms are used for cleaning the floor when we do general cleaning.
由于be为助动词,因此它的疑问式、否定式及反意疑问式则按一般规则进行变化。
(1).used to重在表示与现在的对比,含过去曾经/一度,现在未必之意;would重在叙述过去的情况,没有上述含义。如可以说:
He used to get up early, but not now. 但不说:He would get up early, but …
(2).used to可以表示过去习惯或经常的状态;would不能,它只能表示过去的一个经常重复的动作,如可以说:
There used to be a temple nearby. 但不能说:There would be …
(3).used to较正规、普通,多用于口语;would不太正规、多用于书面语。
(4).两者都不能用于表示某事发生的具体次数。但would可表示过去有时或偶尔发生的动作,因而可与sometimes, now and then, from time to time等时间状语连用,例如:
He would sit there for hours sometimes, doing nothing at all.
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