八上Unit2知识点归纳
语法:
1.频率表达法
次数+段时间(次数: 一次为once，两次为twice, 三次或三次以上为数字+times )
eg: once a week 一周一次, twice a day 一天两次, three times a month 一个月三次
2. 对频率提问, 疑问词为“How often” 意为"多久一次"
eg: How often do you exercise? 你多久锻炼一次？
I exercise twice a week. 我一周锻炼两次。

3 频率副词: (按频率从高到低排序)
always, usually, often, sometimes, hardly ever, never
知识点：
1. do housework 做家务
2. hardly ever 几乎不
3. be full of 充满...的, 装满...的
eg: The bag is full of apples.
4. maybe adv. 大概,或许,可能(常用于句首) may be 情态动词加be动词原形可能是, 也许是(常用于主语后)
eg: Maybe he is a student.
He may be a student.
5. at least 至少,不少于
6. junk food 垃圾食品(不可数名词)
7. healthy adj. 健康的
health n. 健康
eg: Healthy food is good for our health.
8. percent 百分之...
数字+percent of +名词百分之...的... (谓语动词取决于名词) eg: Ten percent of apples are red.
Twenty percent of the milk is from England.
9. although与but不能连用
eg: The little girl can read books although she is only five years old.
The little girl is only five years old, but she can read books. 10. mind n. 头脑, 心智
v. 介意
mind sb doing sth 介意某人做某事
eg: Do you mind me opening the door?
11. such 修饰名词
so 修饰形容词
eg: He is such a good boy.
The boy is so good.
12. such as 例如, 像...这样
13. die v. 死亡dead adj. 死的death n. 死亡
14. go to the dentist 看牙医
15. more than 多于
16. less than 少于。