1、单元语法小专题(Grammar Focus)语法精讲used to的用法小结1used to do sth.表示“过去常常做某事”，将过去和现在对比，暗示现在不做了。在肯定句中，used无人称和数的变化，to为动词不定式符号，后接动词原形。如：He used to go to school at six oclock.他过去常常六点去上学。2used to do sth.的否定形式主语usednt to do sth.或主语didnt use to do sth.如：He used to play computer games all day.他过去常常整天玩电脑游戏。He usednt to
2、 play computer games all day.He didnt use to play computer games all day.他过去不是常常整天地玩电脑游戏。【注意】usedntused not3used to do的疑问句形式及其答语(1)Used主语to do？回答：Yes，sb.used to./No，sb.usednt to.如：Used Tom to watch TV？汤姆过去常常看电视吗？Yes，he used to./No，he usednt to.是的，他经常看。/不是，他不经常看。(2)Did主语use to do？回答：Yes，sb.did./No，sb
3、.didnt.如：Did you use to do homework after school？你过去常常在放学后做家庭作业吗？Yes，I did./No，I didnt.是的，我做。/不是，我不做。4used to do的反意疑问句形式也有两种，类似于否定句形式。如：They used to see English movies on Sundays，usednt they？/didnt they？他们过去常常在星期天看英文电影，是吗？Yes，they used to./No，they usednt to.或Yes，they did./No，they didnt.是的，他们过去常看。/不是
4、，他们过去不常看。5used to也可用于there be结构，表示“过去常有”。如：There used to be a meeting every Monday morning last month.上个月每个星期一上午总要开会。6get/be used to (doing) sth.习惯于(做)某事；use sth.to do sth.用做某事；be used to do sth.被用来做某事；be used for (doing) sth.被用来做某事；be used by被所用。语法精练.用括号中所给单词的适当形式填空。1My little brother used to_play(
5、play) pingpong.2Im used to getting(get) up early.3Wood is used to_make(make)desks，chairs，tables and so on.4. Did you use(use) to be short?5Today，computers are_used(use) in both cities and towns.根据汉语提示完成句子，每空一词。6He used to be(以前是) a history teacher in our school.7There used to be(以前有) an old temple n
6、ear the village.8She is/gets used to walking(习惯于散步) after supper.9Wood is used to make/for making(被用来制造) paper.10Mrs.Black has been/got used to(已习惯于) eating with chopsticks.按要求完成下列句子，每空一词。11My brother used to play football after school.(改为一般疑问句并作否定回答)Did your brother use to play football after schoo
7、l?No，he didnt12Tom used to be a quiet boy.(改为否定句)Tom didnt use to be a quiet boy.13There used to be an old hospital behind our school.(完成反意疑问句)There used to be an old hospital behind our school，didnt/usednt there?14I used to see my aunt once_a_month(对画线部分提问)How often did you use to see your aunt?15Mary used to stand at the window and wave goodbye.(改为一般疑问句)Did Mary use to stand at the window and wave goodbye？
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