unit2 how often do you exercise? self-check
学习目标】1.复习巩固用how often提问做事的频率和答语。
2. 进一步巩固一般现在时的用法。3. 能熟练掌握频度副词的用法。
学习重点】1.用how often提问做事的频率和答语。2.背诵3a
活动**】一。 一对一过关本节单词。二。根据part4的部分和同桌完成一下，比一比谁最健康。三．完成self-check的1 . 3。
四．巩固how often 的用法。 根据提供的短语同桌之间来练习：watch tv(every day) .
go online(always).visit grandparents(once a week). stay up(twice a week).
eat junk food(three or four times)
eg：1）we alwayswatch) tv on weekends. 2) hebe) busy this week.
3) sheh**e) milk every day.
4 ) tom hardly everstudy) math because he thinks it is difficult.
(拓展)：含有频度副词同样也适用一般过去式的句子。
eg: 1) he always___take) the bus to school last year.
2) lily hardly everstay) up last month.
3) wedo)eye exercises sometimes last year.
4) theynot often come) back last month.
知识点点拨】
1. none 没有一个。表示三者或三者以上都不，既可指人也可指物，常与of短语连用。它的回答常用how many、how much提问的句子。
eg：1)__of the money is on the tables.
2)--how many students are there in the classroom
(拓展)： no one 没有人，相当于nobody. 只能指人，用作主语时谓语动词用单数，后面不能跟of短语，常用来回答who和含有anyone,anybody引起的疑问句。
eg: 1）no oneknow) the news.
2) -who is in the next room
2. maybe是副词，或许。
eg: 1) heknow the answers. 2he is at home now.
may be 可能是。 “情态动词+动词原形”，后不再跟动词。
eg：heat home.(同义句he is at home.
过关检测】1.--how many birds can you see in the tree?
all the birds h**e flown away.
a. none b .no one c. nothing few
2.-is there anybody at home
a. none b .no one c. nothing few
3. eating more __food helps you keep___
.health； healthy
c. healthy； healthd. health; health
4. we learn english by __it.
b .uses c. using use
5should i take this medicine a day?
--three times.
a. how much often c. how many many times
6. tom has just finished writing aarticle.
a. nine-hundred-words
7. john turned round and looked at him
b .in surprise c. at surprised his surprise
8.--must i finish my homework right now ? no, you
a. must h**e to h**e to
9. i surf the internet every day(划线提问do you surf the internet?
10. i surf the internet once a week.(划线提问)
do you surf the internet？
11.我和妈妈通常在星期天去买东西。
my mother and ishopping on sundays.
12. 他几乎从不吃早餐。
hebreakfast.
13. 李平上学总是迟到。 li pinglate for school.
14. maybe you are right.(同义句。
15. he maybe knows the answer. (同义句)
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