今天學習used to do的用法。
used to do表示“過去常常”，如：
He used to smoke. (past)
他過去抽菸。(過去)
He doesn't smoke.(now)
他不抽菸。(現在)
再如：
Mary五年前說：
I play badminton.
我打羽毛球。
I've got a rabbit.
我有一隻兔子。
I eat a lot of chocolate now.
我現在吃很多巧克力。
I'm a sales girl.
我是個銷售小姐。
這些天她說：
I haven't played badminton for years.
我好幾年沒打羽毛球了。
My rabbit died last year.
我的兔子去年死了。
I don't like chocolate.
我不喜歡巧克力。
I work as a teacher.
我是一名教師。
我們可以將相同的內容用used to連接起來表達，
如：
She used to play badminton, but she hasn't played badminton for years.
她過去常打羽毛球，但她多年沒打羽毛球了。
She used to eat a lot of chocolate, but she doesn't like chocolate now.
她過去常吃巧克力，但現在不喜歡巧克力了。
She used to have a rabbit, but it died last year.
她過去養過一隻兔子，但去年兔子死了。
She used to be a sales girl, but she is a teacher now.
她過去是一名銷售小姐，但她現在是一名教師。
再如：
Peter doesn‘t travel much these days.
這些天彼得不常旅行。
He prefers to stay at home.
他寧願呆在家裡。
But he used to travel a lot.
但他過去經常旅行。
He used to go away two or three times a year.
他過去每年離開兩三次。
<code>He used to travel a lot which means he travelled a lot often in the past, but he doesn’t do this anymore./<code>
I used to play tennis a lot, but I don't play very much now.
我過去常打網球，但現在不怎麼打了。
I used to play tennis in the past but I do not play tennis very much these days.
我過去常打網球，但現在不怎麼打了。
used to的疑問式是did (you)use to...?，如：
Did you use to eat a lot of sweets when you were a child?
你小時候常吃很多糖果嗎?
used to的否定式是didn't use to...或者是used not to...，如：
I didn't use to like him.(or I used not to like him.)
我過去不喜歡他。(或者我過去不喜歡他。)
與used to的肯定、否定和疑問相關的練習：
用used to的正確形式，並從所給出的詞彙中選擇合適的補全句子。
注意：used to do和am used to doing的區別。
I used to live alone.
我以前一個人住。
<code>(I lived alone in the past, but I no longer live alone)
(我過去是一個人住，但現在不再是一個人住了)/<code>
I am used to living alone.
我習慣一個人住。
<code>(I live alone and I don't find it strange or difficult
because I've been living alone for some time)
(我一個人住，並不覺得奇怪或困難，
因為我已經一個人住了一段時間了)/<code>
used to與be used to和get used to的區別：
used to經常用於描述過去經常做的事情，但現在已經不做了。如:
I used to walk to my work but now I go by my car.
我過去常常步行去上班，但現在我開車去。
She used to have very short hair but now she has got long wavy hair.
她過去有很短的頭髮，但現在她有長波浪的頭髮。
I used to jog every day but now I prefer walking.
我過去每天慢跑，但現在我更喜歡步行。
be used to經常用於描述很正常的事情。如:
I am used to cold weather because I live in the north.
我習慣了寒冷的天氣，因為我住在北方。
She is used to spending a lot of time in the kitchen because she is a cook.
因為她是廚師，所以她習慣於花很多時間在廚房裡。
He is used to driving on the left because he lived abroad.
他住在國外，所以習慣於靠左行駛。
be used to經常用於描述習慣了做某些事情。如:
You'll get used to living in this quiet place.
你會習慣住在這個安靜的地方。
He got used to listening to loud music.
他習慣於聽吵鬧的音樂。
She got used to speakingFrench very soon.
她很快就習慣說法語了。
下圖彙總了used to，be used to和get used to的區別。
對比之後完成後面的選擇題。
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