[荐]人教版八年级上册英语第二单元重点知识汇总(单词,短语,语法)
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人教版八年级上册英语第二单元重点知识汇总（单词，短语，语法）
Unit 2 How often do you exercise?
v 重要短语
1. help with housework 帮助做家务do housework 做家务
2. hardly ever 几乎不eg: She hardly ever helps with housework.
3. once a week 一周一次twice a month 一月两次
three times a week 一周三次a few times a week 一周几次
one to four times a week一周一至四次once or twice a week一周一两次
4. use the Internet 使用网络eg: I use the Internet about once a week.
5. have piano lessons上钢琴课eg: I have piano lessons twice a week.
6. at least 至少eg: He plays soccer at least twice a week.
7. eat a healthy breakfast[吃一顿健康的早餐
8. improve one’s English 提高某人的英语
eg: We can improve our English by watching English movies.
我们可以通过看英文电影提高英语。
9. junk food 垃圾食品
10. be good for 对......有益be bad for...对.....有害
eg: Don’t eat too much junk food because it’s not good for our health. 不要吃太多垃圾食品因为它对我们的健康有害。
11. want sb to do sth 想让某人去做某事
eg: My mother wants me to drink milk every day because it’s good for my health.
12. in one's free time 在某人的空闲时间
13. the result of… ......的结果
14. Here are the results. 这是结果。
15. not...at all 一点儿也不……
eg: Twenty percent of our students do not exercise at all.
20%的学生一点儿也不锻炼。
16. go online 上网
17. the answer to the questions 这些问题的答案
18. the most popular 最受欢迎的
19. the best way to do sth.做某事的最好方式
eg: The best way to relax is through exercise. 放松的最好方式是通过锻炼。
20.such as 例如（通常用于列举）
eg: Exercise such as playing sports is fun. 像体育运动这样的锻炼是挺有趣的。
eg: He is good at many kinds of sports, such as playing basketball , playing soccer and so on. 他擅长于各种体育运动，例如打篮球求、踢足球等等。
21.spend time with sb[与某人共度时光
eg: You can spend time with your friends and family as you play together.
你可以和你的朋友与家人共度时光，当你们在一起玩的时候。
22. play together 一起玩
23. Old habits die hard. 旧习难改。网ZXXK]
24. go to the dentist 去看牙医
eg: She never goes to the dentist for teeth cleaning.她从不去.Com] 25.more than多于;超过=over less than少于
eg: She often watches TV more than two hours a day.
她经常看电视一天超过两小时。
26. go to the shopping center去购物中心
v 重要语法点
ü频率副词
1. 概念：频率副词是用来表示动作发生频率的词。
My sister is afraid of water,so she never goes to swim.我妹妹怕谁，所以她从不游泳。
2. 频率副词在句中的位置
频率副词常放在实义动词前，be动词、情态动词和助动词后，但sometimes 的位置较为灵活，还可以放在句首或者句末。
3. 对句子中的频率副词进行提问，用 how often 。
ü重点对话
1. 询问及回答做某事的频率
2.询问及回答日常活动
A: How often do you go to the movies?
你多久去看一次电影？
A：What do you usually do on weekends?
你在周末通常做什么？
B: I go to the movies maybe once a week.
我大概一个月去看一次电影。
B: I always exercise.
我总是会锻炼身体。
ü辨析hard / hardly / hardly ever