used to/would的用法waste英语知识点 1、used to/would/be used to (1)used to 表示“过去惯常”,但“现在不做了”,指过去的习惯或状态,to 为不定式符号,后跟动词原形。有两点须注意: ①否定式。used to do sth.的否定式有两种形式: used not (usedn’t)to do sth. didn’t use to do sth. 例如:He didn’t use to (usedn’t to)like country music,but now he is getting interested. ②疑问式。used to do sth.的疑问式也有两种形式。其简短回答中的to通常不予省略,但动词原形常被省略。 Did + sb.(主语)+ use to do sth.? Used + sb.(主语)+ to do sth.? Did he use to play basketball? Used he to play basketball? (2)would(可以)是will的过去式,也可表示习惯动作。 ①would 用于过去将来时。
初二下册英语电子课本 I thought I would make lots of new friends.我曾认为我会交上许多新朋友。 ②would 表示过去习惯的动作。 “would + 动词原形”表示过去的习惯动作,与used to 同义,但与used to 有别。Used to do表示过去经常发生的动作或存在的状态,同时隐含有“现在已经有所改变”的意思,而“would+do sth.”可以用来表示“过去经常发生”,但不表示“过去存在的状态”。 She used to say“No pains,no gains”. 她过去常说:“不劳而获”。(used to可以换为would) I used to live in the countryside. 我过去住在农村。(此句的used to不可用would换用) (3)be used to具有双重含义: ①be used to是use sth.to do sth的被动形式,意为“被用来干某事”,to为不定式符号。 例如:Rice may be used to make wine. ②be used to表示“习惯于……,”be可以换为get或become,表示“开始、变得习惯于……”,to 为介词,其后接名词、代词或动词作宾语。 例如:I’m used to English food. 2、waste It is a waste of time/money to do sth. 干……浪费时间(钱) It’s a waste of time to fix this watch. 3、watch over/Watch out watch over 意为“照看”,“保护”,“监视”。如: Will you watch over my clothes while I go shopping. Watch out(for sth.) 意为“注意”,“监视”,“当心”。如: The doctor told her to watch out for anything unusual. 1.-----I’d like to invite you to a concert this evening. -----Thank you ,but_______I’ ll be free I am not sure at the moment. A. while B.if C.when D.whether 2.America was________was first called “India” by Columbus. A. that B. where C. what D. the place 3.Is there a shop around_________I can get a pack of cigarettes? A. which B. where C. that D.what 4.The soldiers soon reached _______ was once an old temple________the villagers used as a school. A.which ; where B.what ; which C. where ; which D.what; where 5.----I rang you at about ten, but there was no reply. ----Oh, that was probably______I was seeing the doctor. A. when B. why C.what D.that 答案 1~~5 DCBBA ![]() |
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