unit 1 how often do you exercise?
1. exercise v. 训练，锻炼 i exercise ever day.
n. 练习，习题；指具体运动项目 do morning exercise
2. hardly: almost not 位于实义动词前，系动词、助动词和情态动词后。
eg. he hardly goes to bed before 12:00.
3. ever: adv. 常与现在完成时连用。
(1)ever 肯定句 “常常”
eg. he is ever ready to help his friends. 他总是乐于帮助他的朋友。
(2)疑问句“究竟；到底”
eg. which ever do you want? 你究竟想要哪一个？
4. time n. [c] 次数 times ( once, twice, three times..)
u] 时间 what time is it?
5. surf the internet 网上冲浪 on the internet 通过网络。
6. result of （是）……的结果result for ……的结果是……
7. health ― healthy (keep healthy) ―unhealthy
8. try to do sth 尽力去做某事。
not to do sth 尽力不做某事。
try/do one’s best to do sth. 尽某人最大努力做某事。
eg. we should try / do our best to help the people in trouble.
我们该尽力帮助处于困境中的人们。
9. of course = certainly 当然。
10. look:
look after = take (good) care of 照顾 look down (upon) 瞧不起。
拓展： look like 看上去像 look the same 看上去一样 look up 查字典。
look over 检查（身体） look out 小心，向外看 look at 看。
11. the same...as 和……一样
he is the same age sa his friend.
12. be different from 不同于……
13. although 不与but连用。
14. keep adj. (宾语补足语) 保持……状态 keep the door open, please.
sb. doing sth 让某人一直做某事
he kept talking about an hour. 他持续谈了大约一小时。（谈的状态没有间断）
15. be good for ― be bad for (主语常为v-ing形式）
watching tv too much is bad for your eyes.
拓展：be good at n. she's good at sports.
擅长于…… v-ing tom is good at playing soccer.
be good to 对……好 she is good to us.
be good with 和……相处的好 are you good with children?
16. want sth. lily wants a new sweater.
sb) to do sth. liu ying wants me to go shopping with her.
17. help sb do sth. he helps me learn english.
= help sb. with sth.(n.) he helps me with my english.
18. sometimes 有时（现在或过去时） sometime 在某时（adv.)
some times 好几次some time 一段时间（名词词组）
习题：(1) i hope to visit the usa sometime in the future.
2) i don't like animals, but sometimes i'm friendly to them.
3) i waited for you for some time .
4) he has been in tianjing some times .
19. how 问句。
1) how 询问身体状况或事情进展状况 how is he?
2) how 询问交通方式 how can i get to school?
3) how far 询问距离 how far is it from your home to school?
4) how long 询问物体长度或时间长短 how long is the ruler?
how long did you live here?
5) how old 询问年龄 how old is your sister?
6) how often 询问频率 how often do you exercise?
7) how soon 询问多久以后会发生某事 how soon will she come back?
8) how many/much 询问数量 how many + 可数名词复数 how much +不可数名词。
9) how much 询问** how much is the skirt?
how often 对频度副词进行提问（常与一般现在时或一般过去时连用）
how often do you go to the movies?
three times a week.
how soon 还要多久（多用于将来时）,答语通常是“in + 一段时间”
how soon can you finish the workin half an hour.
how long多久，多厂时间，主要提问时间长短。对一段时间进行提问，答语通常是“for + 一
段时间”。（可用于各种时态）
how long h**e your parents been in beijing? for about 3 years.
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