Unit 2词组
1.有时候 sometimes= at times 2.几乎hardly ever/ hardly
3.在周末 on weekends=on the weekend 4.在工作日 on weekdays
5.一周三次 three times a week 6.多久一次 how often
7.多远 how far 8.自由的，免费的 be free
9.熬夜做某事 stay up doing 10.至少 at least
11.上钢琴课 have a piano lesson 12.早睡 go to bed early
13.早起 get up early 14.晚起 get up late
15.一到四次 one to four times 16.三四次 three or four times
17.与---相处地好 be good with--- 18.关于某事询问某人 ask sb about sth
19.向某人要某物 ask sb for sth 20.百分之40的学生 forty percent of students
21.百分之15的时间 fifteen percent of time
22.在某方面花钱/时间 spend...on sth 23.花时间/钱做某事 spend...(in) doing
24.问题的答案 the answer to the question 门的钥匙 the key to the door
成功之路 a road to success …的秘密 the secret to
25.去看牙医 go to the dentist= see the dentist 26.上网 go online= use the Internet
Unit 2句型
1. How often do you exercise? 你经常多久做一次运动
2. What do you do on weekends? 你周末做什么？
3.I have to play tennis with my friends. 我不得不和我的朋友打网球。
4.How many hours do you sleep every night？你每天晚上睡多少小时。
5.It is healthy for the mind and the body. 它对身心有好处。
6. You can spend time with your friends and family as you play together.
当你们一起玩耍的时候，你能跟你的朋友跟家人度过美好的时光。
7.Old habits die hard. 旧习难改。
Unit 2知识点
1.频率副词：表示次数、频率的副词,对频率副词提问用how often (多久一次)
(1)always (一直), usually(通常), often(经常), sometimes(有时候), hardly ever (几乎没有), never (从不)
(2)once a week, twice a month, three times a year…
(3)频率副词的位置：实前be后
(4)拓展：一次：once 两次：twice 三次以上：基数词+ times 如：three times ten times
提问次数用how many times
2.有关how的特殊疑问句：
how often (多久一次), 提问频率副词 how long (多久), 提问多长时间
how soon(多久之后)，提问将来的时间 how far (多远), 提问距离与路程
3.(1)stay up late 熬夜到很晚 例句：Don’t stay up late.
(2)stay up doing 熬夜做某事 例句：He stayed up watching TV.
4.play sports = do sports = exercise=do exercise 做运动，锻炼
例句：After dinner, he often plays sports.=After dinner, he often exercises.
5.health n.健康 healthy adj.健康的 例: (1)He is very healthy. (2)He has healthy habits.
保持健康 keep healthy= stay healthy = keep in good health
健康的食品 healthy food 吃地健康 eat healthily
6.how much/ how many的区别
How much +不可数名词 How many + 可数名词复数
(1)There are 57 students in our classroom. How many students are there in our classroom.
(2)I would like a bottle of milk. How much milk would you like?
7.百分数的表达：(1)写法：基数词+percent 40% forty percent 15% fifteen percent
(2)百分之-----的--- 百分数+of+名词 40%的学生 forty percent of the students
(3)百分数做主语时，后面的动词取决于of后面的名词。
例句：Forty percent of the students are boys. Fifteen percent of water is clean.
8.such as 与for example
区别：such as后面无标点，加名词或doing；for example后面用逗号隔开，通常加句子。
9.四个花费：
(1)人 spend 钱/ 时间 on sth. ；人 spend 钱/ 时间 (in) doing.
(2)It takes/ took 人 时间 to do.
(3)人 pay 钱 for sth.
(4)sth cost sb 钱.
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