2017届高三广东北师大版英语一轮复习学案: M2 unit 5 Rhythm(1) 1. be used to (doing sth.), used to (do sth.)与 be used to do sth. ①be used to意为“习惯,适应”,其中be可换作系动词get或become;to是介词,所以其后可接v.ing形式、名词和代词等。 I am not used to being treated like this. 我不习惯被这样对待。 I walk after supper every day, so I am used to it. 每天晚饭后我都散步,所以我已经习惯了。 ②used to (do sth.)意为“过去常常(做某事)”,其中to是不定式符号,故其后接动词原形。 I used to swim in this river when I was a child. 小时候我常在这条河里游泳。 【温馨提示】 used to的否定形式为usedn't to或didn't use to。疑问形式为Used sb. to…或Did sb. use to…?反意疑问形式为…usedn't sb.?或…didn't sb.? He didn't use / usedn't to write with a pencil. 他过去不常用铅笔写字。 Used he / Did he use to come here? 他过去常来这里吗? ③be used to do sth.意为“被用来做某事”;其中to也是一个不定式符号。 Plastic can be used to make into all kinds of things. |