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8年级下册专题讲解
used to
过去(常常做某事)
Used to
1.王先生曾经是一位工人。
2.这儿曾经是一个工厂。
3.李平过去经常早早起床。
4.他过去经常骑自行车上学。
Pre-exercise
翻译下列句子
used to是一个固定结构，
它的意思是“过去经常、以前常常”，它的后面用动词原形
它表示过去存在某种状态或者过去的某种经常性、习惯性的行为或者动作，并意味着这种动作目前已经不存在，
所以它只能用一般过去时，不能用现在时态。
used to + do sth.
“过去常常”表示过去习惯性的动作或状态，但如今已不存在。
I
You /We/They
He /She/It
used to
eat breakfast at
7 a.m. every day.
e.g. Scarf used to take a walk.
Mother used not to be so forgetful.
He used to work in the factory.
My father used to read newspapers
after breakfast. 　　
主语＋ used to ＋动词原形...
例如：
I used to go to the cinema, but I never
have time now.
Sb used to do sth.
（一）肯定句式：
主语+used to+动词原形
I used to smoke a lot.
She used to work in a shop.
Tom used to be a policeman.
He used to watch a lot of TV.
She used to be married.
Used to do sth 过去(常常做某事)
A)主语＋did not use to ＋动词原形......
He did not use to swim in this river,
but he swims here now.
（二）否定句式：
B)主语＋used not to ＋动词原形......
第一种否定句型，就是把used当作实义动词来看，所以变否定句要用助动词did；
第二种否定句是把used当作情态动词，变否定句直接在used后面加not即可，used not 可以缩写成usedn’t或usen’t。
美式英语通常用A种形式，英式英语常用B种形式。例如：
You didn't use to drink.
Didn’t use to do sth
used not to do sth
I used to smoke a lot
I didn’t used to smoke a lot.
I used not to smoke a lot.
Used to 的否定形式
A) Did ＋主语 ＋use to ＋动词原形...？
B) Used ＋主语＋ to ＋动词原形...？美式英语通常用A种形式，英式英语用B种形式。例如：
Did you use to go swimming in the river when you were young
(三）疑问句式：
She used to smoke a lot.
Did she use to smoke a lot
Used she to smoke a lot
Did your sister use to be quiet
Used to 的一般疑问句形式
主语+used to do sth, didn’t +主语？
used not+主语？
I used to be a teacher, didn’t you
used not you
He used to watch a lot of TV, didn’t he
used not he
Used to 的反义疑问句
(四) used to 的状语可以用副词always，often，sometimes等，但是仍然是过去的习惯，不是指现在的习惯，所以不能用一般现在时。
例如：He always used to be late for class.
他过去常常上课迟到。
(五) used to可以用在there be结构中表示“过去经常有”的意思。
There used to be
There used to be a lot of teachers in the school.
100 years ago, there used to be a beautiful village
in the country
There used to be a clever old man in the village.
例如：
—Used you to play basketball ——你过去常打篮球吗？
—Yes, I used to. (No, I usedn't.)
(六) used to 用于省略句时，肯定式保留
to，否定式不保留to。
拓展： “be used to”
be used to + sth./doing sth.
对……已感到习惯，或“习惯于”，
to是介词，后需加名词或动名词。
I
You /We/They
He /She/It
are (not) used to
the hot weather.
drinking coffee.
am (not) used to
is (not) used to
句式：Sb be used to sth/doing sth.
e.g. I am used to eating lunch
at 11:30 p.m.
=I get used to eating lunch
at 11:30 p.m.
e.g. He is used to a vegetarian diet.　　
Scarf is used to taking a walk.
be used to =get used to
1.房子用来住。
2.刀子用来切东西。
3.纸用来写字。
House is used to live.
Knife is used to cut things.
Paper is used to writing words.
你能翻译吗？
注意：be used to do sth./for sth.
被用于做某事 ，表被动
e.g. Bamboo can be used to make
/for making chairs.
A knife is used to cut things
/for cutting things.
Sth be used to do sth.
Work out the rule!记住三个句式
Sb used to do /be 某人过去常常做/过去是……
Sb be (get) used to doing sth. 某人习惯于做…….
Sth be used to do/for doing sth. 某物被用于做……
thank you

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