中考英语词组辨析

中考英语词组辨析

中考英语词组辨析：used to do sth/ be used to doing sth

Ⅰ. Used to do sth.“过去常常做某事”(现在不做了)，只用于过去时态。如：

① He used to get up early.过去他常早起。(现在已不这样了)

② Her mother used to go shopping on Fridays, but now she does it on Sunday. 她母亲过去常在周五去购物，但现在她周日去了。

Ⅱ. Be used to (doing)sth. “习惯于做某事”，be used 是被动语态结构。可用于现在、过去、将来多种时态。Be可用get, become等代替。如：

① He will be / has been used to getting up early. 他将会/ 已经习惯于早起。

Ⅲ. Be used to do sth. “被用于做某事”， be used 是被动语态结构，其中不定式表目的，可用于多种时态。如：

① Wood is used to make paper.木材用来造纸。

[注]：used to 的"否定式有两种：一是：used not to 二是：didn’t use to 如：

① My father used not to smoke. = My father didn’t use to smoke.我爸爸过去不抽烟。

② They used not to live in the country. = They didn’t use to live in the country.

其疑问式是将used 提前，或添加助动词 did.

Ⅳ.would 是情态动词，没有象used to那样，有过去和现在的对比。不能说明是否现在还做不做。