used to 的用法

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usedto的用法usedto的用法usedto的用法以下是详细资料,希望你全面掌握相关知识点!usedto固定词组ph.过去一向,过去时常;过去曾(而现在不再)做例句:(过去常常)Iweighles

used to 的用法
used to 的用法

used to 的用法
以下是详细资料,希望你全面掌握相关知识点!
used to
固定词组 ph.过去一向,过去时常;过去曾(而现在不再)做
例句:
(过去常常)
I weigh less than I used to.我的体重比以前轻了.
Jack used to assist Mary in her lessons.杰克过去常常帮助玛丽学习功课.
I used to get up early and take an hour's walk before breakfast.
我过去常常起床很早并且在早餐前散步一小时.
Women used to think they were on the shelf at 30.过去女人一到30岁就认为是过了结婚年龄.
(习惯于)
You'll get used to it.你会习惯的.
He is used to eating out all the time.他已经习惯在外面吃饭了.
He is used to the soft climate of the south.他习惯于南方温暖的气候.
used to / be used to 辨析:
used to + do:"过去常常"表示过去习惯性的动作或状态,但如今已不存在.
Mother used not to be so forgetful.
Scarf used to take a walk.(过去常常散步)
be used to + doing:对……已感到习惯,或"习惯于",to是介词,后需加名词或动名词.
He is used to a vegetarian diet.
Scarf is used to taking a walk.(现在习惯于散步)
Would与used to都可用来表示过去经常性或习惯性的动作,常常可以换用.
如:(1)When we were boys we used to/would go swimming every summer.
小时候,每到夏天我们都要去游泳.
  (2)He used to/would spend every penny he earned on books.
过去,他通常把挣来的钱全花在买书上.
Would与used to都不能用来表示动作发生的具体频度或具体的一段时间.例如,不能说:
(3) I would/used to go to France six times.
(4)He used to live in Africa for twenty years.
上两句应改成:
(5)I went to France six times. 我去过法国6次.
(6)He lived in Africa for twenty years.他在非洲住过20年.
Would与used to的区别主要有以下几点:
a. Used to可指过去的状态或情况,would则不能.如:
(7)School children used to know the story of how Abraham Lincoln walked five miles to return a penny he'd overcharged a customer.(不能用would)
过去,学校的孩子们都知道亚伯拉罕·林肯怎样步行5英里退还多收顾客1便士的故事.
(8)Yet,he cannot but remember China as it used to be.然而,他不会不记得旧日的中国(不能用would).
b. Would表示反复发生的动作.如果某一动作没有反复性,就不能用 would,只能用 used to.例如:
(9) And from that day on,as soon as the table was cleared and the dishes were gone.Mother would disappear into her sewing room to practice.
从那天起,只要碗盘撤掉、饭桌一清理干净,妈妈就马上躲进做针线活的房间练习起来.(具有反复性)
(10)I used to live in Beijing. 我过去住在北京.(没有反复性)
c. Used to表示过去经常性或习惯性的动作或状态现在已经结束,would则表示有可能再发生.如:
(11)People used to believe that the earth was flat.
过去,人们总以为地球是扁平的.(现在已不再这样认为)
注意:used to的否定式和疑问句:
(12)过去我不喜欢歌剧.
I used not to like opera.
used to指的是过去的习惯性动作,目的在于与现在形成对照,如:I used to work hard.是说“我过去常常努力工作.”暗含的意义是:我现在不努力工作了.在表示过去的习惯性这一点上,与would的意义相同(只不过used to既可用于表示过去的习惯动作,又可用于表示过去的状态.would只能用于表示过去习惯性的动作).从形态上看used to是个情态动词,其中的to是不定式符号,后面跟动词原形.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”这一动态的过程,意思是:“(变得)习惯于”;“开始习惯于”.有时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.
be used to与be accustomed to的区别:前者一般用于指自然而然地成为习惯,后者常常用于指通过努力而成为习惯.试比较:
I am used to teaching English.我对教英语已习惯了.
I am accustomed to taking coffee.我习惯了喝咖啡.

used to do sth.过去常常做某事,强调与现在的对比,即现在已经不做。
be used to do sth.(某物)被用于做某事
be/get used to doing sth.习惯于做某事