use的正确用法究竟是什么

语法必考题：use的正确用法究竟是什么?

　　1. used to do sth.意为"过去常常做某事"，它表示过去经常发生的动作或存在的状态，而现在已不再发生或存在。这个短语含有今昔对比之意，其否定形式常用used not to或didn't use to。反意疑问句中应该用did/didn't或used/usedn't。例如：

　　I used to swim in this river when I was young.我年轻时常在这条河里游泳。

　　They used to be good friends, didn't they?他们过去是好朋友，是吗?

　　2. be used to sth. / doing sth.意为"习惯、适应某事/做某事"，它表示习惯于某一客观事实或状态，其中to是介词，后面跟名词、代词或动名词;be used可用于多种时态;如强调动作可用get或become替换be。例如：

　　Old people are used to getting up early in the morning.老年人习惯早晨很早起床。

　　I wasn't used to city life, but now I have got used to living in this city.我以前不习惯都市生活，但现在我已习惯住在这座城市了。

　　3. be used to do sth.意为"被用来做某事"，其中use表"使用"之意，是被动语态形式，to是动词不定式符号。例如：

　　Wood can be used to make paper.树木可以用来造纸。、

　　4. be used for...意为"被当做……",其中use表"使用"之意，是被动语态形式。例如：

　　The seal's fur can be used for coats.海豹皮可当做大衣用。

　　5. be of use意为"有用的"，其中use是名词，可用形容词来修饰。例如：

　　The dictionary is of great use to the students.这本字典对学生们很有用。

　　6. be in use意为"在使用"，其中use也是名词。例如：

　　The laboratory is in use until three o'clock.实验室一直到3点钟都有人使用。

　　7. make use of sth.意为"利用、使用某物"，其中use也是名词，可用good, full, more, little等形容词来修饰。同学们应特别注意它的被动形式。例如：

　　We must make full use of time to study.我们必须充分利用时间学习。

　　8. use与for或as连用，构成短语use...for，意为用来做......;为了......而使用， use... as ...... 为作为......使用;用作......之意。

　　Bamboo can be used for carrying water. 竹子可以用来运水。

　　Modern cellphones are more than just phones-they are being used as cameras and radios, and to send e-mail or surf the Internet. 现代手机不仅仅是电话，它们也当作照相机和收音机使用，还可以发送电子邮件或上网。

　　9. use up用完;用光。

　　All the paper has been used up. 纸都用完了。

　　根据 use 的用法，试做下列练习

　　I.用use, used to, be/get/become used to, be used as/for的适当形式填空。

　　1. As you know, cotton ________ make quilts.

　　2. He came from the north, so he ________ such hot weather.

　　3. Who knows the name of the tool that ________ lifting cars?

　　4. English ________ a foreign language.

　　5. The farmers in China ________ live a poor life, but now most of them live a happy life.

　　6. Please give me a knife ________ .

　　7. You will ________ living in the country.

　　8. We ________ go there every year when I was young.

　　9. People ________ coal to cook and heat.

　　10. There ________ be a free market in this village.

　　II.用方框中所给词或词组的适当形式填空。

　　use, be used to, get used to, used to

　　1. Once you ________ smoking, you can hardly stop it.

　　2. He ________ Chinese tea five years ago when he was in China.

　　3. A tape-recorder can ________ record your voice.

　　4. We ________ live in the city, but now we live in the countryside.

　　5. This machine ________ make farm tools.

　　6. I prefer not to go there by plane. I ________ (not) flying.

　　7. It was a bit of shock: I ________ (not) paying so much for a Beijing roast.

　　8. The medicine ________ externally only.

　　9. A new production line has been put ________ in this factory since last month.

　　10. I ________ (not) learning in a noisy situation.

　　III.单项选择。

　　1. -Is Paul playing soccer and tennis for theschool?

　　-He ________ . But now he has given them up.

　　A. is B. hasC. used toD. had

　　2. Bamboo can ________ water, can't it?

　　A. get used to carrying

　　B. be used to carrying

　　C. have used to carry