(一)used to
used to指“過(guò)去常?!保话阌眠^(guò)去時(shí)態(tài)。在used to結(jié)構(gòu)中,to為不定式符號(hào),后面跟動(dòng)詞原形。
如:(1)We used to play tennis twice a week.我們過(guò)去曾經(jīng)一周打兩次網(wǎng)球。
(2)She used to be a teacher. 她過(guò)去曾是個(gè)老師。
[拓展]
否定式:usedn’t / usen’t to do或used not to do,或didn’t use to do.如:
She usedn’t (used not) to like Tom.
=She didn’t use to like Tom.
疑問(wèn)式:Used+主語(yǔ)+to do…?或Did+主語(yǔ)+use to do…?如:
Used he to smoke a lot?
=Did he use to smoke a lot?
如:(1)He didn’t use to drink.他以前不常喝酒。
(2)Did you use to be an ORBIS doctor?你以前曾是一名奧比斯*醫(yī)生嗎?
[*注:ORBIS(奧比斯)是一個(gè)全球救盲抗盲的國(guó)際志愿機(jī)構(gòu)。]
(二)be used to
be used to指“習(xí)慣于”,“慣于”,be動(dòng)詞可以根據(jù)實(shí)際情況采用多種適當(dāng)?shù)臅r(shí)態(tài)。在be used to結(jié)構(gòu)中,to為介詞,后面接名詞、代詞或動(dòng)名詞。
如:(1)I am used to taking the bus to school.我習(xí)慣于乘公共汽車(chē)上學(xué)。
(2)They are used to the hot weather.他們習(xí)慣炎熱的天氣。
(3)She is used to drinking tea.她習(xí)慣喝茶。
[拓展]
1.與sth. be used to do sth.的區(qū)別。后者的意思是“某物被用來(lái)干什么”。如:
A knife is used to cut things.
=A knife is used for cutting things.
譯一譯:
衣服是用來(lái)保暖的。Clothes are used to keep warm.
=Clothes are used for keeping warm.
2.be used to也可以說(shuō)成get used to.如:
They were used to driving on the left in London.
=They got used to driving on the left in London.
譯一譯:
(1)他不習(xí)慣吃蔬菜。 He isn’t used to eating vegetables.
(2)你已習(xí)慣做早操了嗎?
Have you been used to doing morning exercises?
或:Have you got used to doing morning exercises?
練習(xí):
根據(jù)句意,用used to和be used to的適當(dāng)形式填空。
1. He ________ spend much time playing games.
2. We ________ Chinese food.
3. Amy ________ be very shy. Now she is not afraid to talk to strangers.
4. Trains ________ be the main kind of transport in China. Now people ________ travelling by plane.
5. We know that the earth moves around the sun, but people ________ believe that the sun moves around the earth.
6. ________ he ________ live in the south? Yes, he did.
7. The old couple ________ already ________ living in the country.
8. ________ he ________ the weather there? Yes, he is.
Keys:
1.used to 2.are used to3.used to4.used to, are used to5.used to6.Did, use to 7.have,been used to8.Is, used to