Unit 2 How often do you exercise？

1，How 如何（方式）

how long 多长（时间）答语常用"（For/ about +）时间段"

how far多远（距离）答语常用"（It's +）数词 +miles/ meters/ kilometers"

how often多久一次（频率）答语常用"Always/ often/ every day/..."或 "次数+时间"等表频率的状语

How soon多快，多久以后，常用在将来时中。答语常用"in +时间段"

how many多少（接可数名词） how much（接不可数名词）

2，exercise作v 锻炼，运动

作[c] 操，练习 do morning/ eye exercises

作[uc] 锻炼 take much/ more exercise

3，at+钟点 at 7 o'clock at noon/ at night（during/ in the day） at this/ that time at the age of

on+ 具体某天、星期、特指的一天、纪念日、节日

on April 1st on Sunday on a cold winter morning on Teachers' Day

in +上午、下午、晚上、年、月、季节、年代、世纪 in the morning/ afternoon/ evening in 1999 in August in autumn in 1960s in the 21st century

4，help sb （to）do sth

help sb with sth

with sb's help= with the help of sb

5，do（the）housework= do chores

6，频度副词（行前be 后）

Always usually often sometimes seldom hardly never

7，sometimes 有时（频度副词） sometime（将来）有朝一日，（曾经）某天

　　Some times 几次，几倍 some time 一段时间（前面用介词for）

8，go shopping= do some shopping

9，once twice three times

10，at once，right now，right away， in a minute，in a moment，in no time 立刻，马上

once more再一次，重新 once upon a time 从前，曾经

11，every day 每天 everyday日常的，每天的

12，on the internet

13，what's your favorite program？=what program do you like best？

14，free 空闲的 in one's free time be free

自由的 as free as a fish freedom n.自由

免费的 The best things in life are free.

15，be full =be busy忙的 be busy doing sth/ be busy with sth

　　be full of充满 eg：The bottle is full of milk.

16，How come？怎么会？为什么？

17，may be 为情态动词+动词原形，在句子中做谓语，maybe是副词，表示可能，大概，一般放在句首(perhaps)。

18，stay up doing sth熬夜做某事

19，stay/ keep healthy be in good/ bad/ poor health be good/ bad for one's health

20，at least=no less than at most=no more than

21，ask sb about sth ask sb（not）to do sth ask sb for help/ advice/ information