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Section C
1. once a week, 一周一次twice a week一周两次, 三次或三次以上用“数字+times”如：
three times a year, four times a day, five times a week,…..
2. go + v-ing形式的短语表“去做某事”如：go hiking 去徒步旅行，go shopping去购物， go skating 去滑冰，go
skiing 去滑雪；go fishing 去钓鱼。
3. she spends half an hour doing exercise in the gym every day.
当exercise指“体操、练习”时，是可数名词，如：do morning exercises 做早操；do English exercises 做英语练习题；但exercise指“锻炼，运动”时，是不可数名词。如：do exercise 做运动。exercise 还可作动词，指“锻炼，运动”如：She exercises every morning.
4. She plays it pretty well.
pretty well= very well相当好
5. She is also good at jumping.
be good at…= do well in…擅长…
如：I am good at English.= I do well in English. be good for… 对…有好处，Running is good for your health.
反义词为：be bad at= do badly in 不擅长…. be bad for 对… 有害
类似短语：be good/bad to sb. 对某人好/不好
6. They are sure that she will win.
①be sure +(that)从句，表“确信…”
如：I’m sure (that) eating too much is bad for you.
②be sure to do sth..确信做某事We are sure to win next time.
③be sure of/about (doing)sth. 表确信(做)某事 I’m sure of that.
7. How often does she go cycling ?
(1) go +动词ing形式，表进行某种户外活动，如：go swimming, go fishing, go climbing.
(2) How often问多久一次，频率。常用sometimes, seldom, twice a year等回答。
How long 问多久。常用“（For）一段时间”来回答
How soon 问多快（时间），用于将来时态。常用“In an hour 在一小时内等”来回答。
如：How soon will you come back? -----In a week.
与how搭配的疑问词有：①How many 多少（接可数名词复数形式）
②How much 多少（接不可数名词）
③How old 问年龄
④How tall 多高（人、树）
⑤How high 多高（山、楼）
⑥How far 问距离
⑦ How long 还可以问物体的长度
（1）（ ） is it from your home to your school？------It’s two kilometers away.
(2)（ ） is the room？------ It’s two meters wide.
(3)（ ） is the tree？ -------It’s three meters high.
8. Because it makes me strong and it is popular all over the world.因为它使我强壮并且它流行.
make, let , have 当表“使，让”时是使令动词，后接动词原形。如：make me cry make 后还可以接形容词，名词,如: make me strong, make him our monitor ，
10. keep healthy = keep fit 保持健康（healthy=fit都是形容词，health 是名词）
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