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1、-used to do、be used to do与be used to doing sth.的用法详解-第 2 页used to do 过去常常做某事be used to doing 习惯于做某事be used to do sth 被用来做某事1. used to的一般疑问句有两种构成方法:1)将used提前至句首,结构为:Used + 主语 + to do sth.?2)将did提前至句首,结构为:Did + 主语 + use to do sth.?例如:Used he to get up early?= Did he use to get up early?2. used to的反义疑问
2、句有两种构成方法,例如:1)He used to smoke,didnt he?2)They usednt to like opera,did they?3. 同样,其否定句也有两种构成方式:1)直接在used后面加上not,也可一起缩写成usednt.结构为:主语 + used not to do sth. 或 主语 + usednt to do sth.2)借助于助动词didnt,其结构为:主语 + didnt use to do sth.例如:He used not to get up early.= He usednt to get up early.= He didnt use to
3、 get up early.4、be(get,become)used to结构在意义上相当于accustomed to“习惯于”,从形态上看,used是个分词型形容词,to是介词,因此后面只能跟名词、代词或动名词。例如:1)They got used to living in the countryside他们已习惯于住在农村。2)Ive got used to being a vegetarian我已经习惯吃素食。3)He is used to hard work他习惯于艰苦工作。5、be used to表示“习惯于某事”的状态,而get used to则表示由“不习惯”到“习惯于”这一动态
4、的过程,意思是:“(变得)习惯于”;“开始习惯于”。试比较:He was used to the cold weather after he lived there for two years在那里住两年后,他已习惯了寒冷的天气。I think it is a bit difficult for you to get used to the humid weather here我想,让你习惯于这里潮湿而炎热的天气有点困难。Youll soon get used to living in the country很快你就会习惯于住在乡下了。6、当主语是物的时候是指被用来做某事,be used to是动词use的被动语态,在这种结构里,to是不定式符号。例如:A metal bar was used to force the door open用金属棒把门撬开。The threshing ground was used to hold a mass meeting打谷场曾用于举行群众大会。