A. LÝ THUYẾT:
- Used to + Verb: Chỉ một thói quen, một hành động trong quá khứ nay không còn nữa.
- Cấu trúc:
- Khẳng định: S + used to + V-infinitive + O.
- Phủ định: S + did + not + used to + V-infinitive + O .
- Nghi vấn: Did + S + use to + V-infinitive +O?
Ví dụ:
When David was young, he used to swim once a day.
When David was young, he didn't used to swim once a day.
Did David used to swim once a day when he was young?
- To be/ to get used to + V-ing/ Noun: Quen với / Trở nên quen với
- Tobe used to: Quen với
Ví dụ:
He is used to having his wife with him. (Anh ấy đã quen với việc có vợ ở bênh cạnh)
He isused to swimming everyday.
- Get used to: trở nên quen với
Ví dụ:
He gets used to smoking. (anh ấy đang trở nên quen với việc hút thuốc)
My sister got used to American food.
Lưu ý:
Used to luôn có dạng cố định, không thay đổi theo ngồi, thì hay số ít số nhiều.
Tobe used to nhấn mạnh vào việc đã quen với, còn get used to nhất mạnh và quá trình đang trở nên quen với.
Có thể dùng would thay thế cho used to mà ý nghĩa và ngữ pháp không đổi.
Ví dụ:
When David was young, he would swim once a day.
B. Bài tập & Lời giải
Bài tập 1: chọn đáp án đúng:
1. Astronauts_____ in their spaceship, but they frequently work outside now.
A. were used to stay B. used to stay
C. were staying D. had used to stay
2. People _____ that the earth is round before.
A. were not used to believe B. used to believing
C. would not use to believe D. did not use to believe
3. Tuberculosis_____ incurable before.
A. use to be thought B. used to be thought
C. used to think D. use to think
4. Formerly babies_____ of whooping cough.
A. have died B. used to die C. would die D. both B and C
5. These city girls are used_____ in the field.
A. to work B. used to lie C. would like D. to working
6. Newton_____ scientific books when a boy.
A. used to read B. has read C. had read D. had been reading
7. I am sorry I am not_____ fast.
A. used to drive B. used to driving C. use to drive D. use to driving
8. Frank used to work in a small shop. He_____
A. doesn't any more B. still does
C. is now D. had never done anything else