2.20Unit2 SectionB(3a-selfcheck)课后练习（解析版）

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Unit2 How often do you exercise?

Section B（3a-selfcheck）练习（解析版）

【基础部分】

I. 词汇运用

1较少（的）________________ 2 牙科医生 ________________

【答案】less 【答案】dentist

3 杂志 _________________ 4 然而；无论如何________________

【答案】magazine 【答案】however

5 比 _________________ 6 几乎；差不多 ________________

【答案】than 【答案】almost

7 没有人；没有任何东西，毫无 ___________________

【答案】none

8 多于 _________________ 9 少于 ________________

【答案】more than 【答案】less than

10 大多数时间 ______________

【答案】most of the time

11 看法；要点；重点；小数点；目标；分数 ______________________

【答案】point 【答案】

12 去看牙医 ________________ 13 一个 16 岁的学生_______________

【答案】go to the dentist 【答案】a 16-year-old student

【综合部分】

一、根据句意及汉语提示补全单词

(1)Would you like some ________（咖啡）?

【答案】coee

(2)If you want to be healthier, you must eat less ________（垃圾食物）, I think.

【答案】junk food

(3)Many people often go ________（上网）and watch the Voice of China at work.

【答案】online

(4)Smoking does harm to ________（健康）.

【答案】health

(5)He found out the information on the ________（因特网）.

【答案】Internet

(6)Thirty ________（百分之）of time passes.

【答案】percent

(7)He became ill and then ________（死亡）.

【答案】died

二、选词填空

exercise, use the Internet, play computer games, go camping in the country,

at least, for fun, such as, is good for

(1)—Do you often go out of the city?

—We often ________.

【答案】go camping in the country

(2) Drinking milk and eating vegetables ________ our health.

【答案】are good for

(3) Many students like ________ on the weekends.

【答案】playing computer games

(4)—How do you get the news?

—I get the news by ________.

【答案】using the Internet

(5)I am not saying it ________.

【答案】for fun

(6) It will cost ________ five pounds.

【答案】at least

(7)I know four languages, ________ English and French.

【答案】such as

(8) She ________ two or three times a week.

【答案】exercises

三、翻译句子

(1)做眼保健操对你的眼睛有好处。

Doing eye exercises ________ ________ ________ your eyes.

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