人教版英语八年级上册全册教材全解：人教版英语八年级上册unit2howoftendoyouexercise教材全解.doc

人教版英语八年级上册
Unit 2 How often do you exercise?
教材全解
【教材容解析】
Section A
What do you usually do on weekends? (P. 9)
on weekends意为“在周末”，泛指每个周末，on the weekend则表示“在这个周末”，特指某个周末；在英式英语中，在周末也可以用at the weekend或者at weekends。
I like going fishing on weekends.
He wants to do something special on the weekend.
help with homework (P. 9)
help表示“帮助”时，常用的句型为：help sb. with sth. 帮助某人某事；help sb. (to) do sth. 帮助某人做某事。
Can you help me with my homework?
He often helps his mother clean do housework.
sometimes (P. 9)
sometimes是频度副词，意为“有时”，相当于at times。
I sometimes play computer games on weekends.
【拓展】辨析sometimes, some times, sometime与some time
sometimes
有时
Sometimes he had lunch at school.
some times
几次、几倍
I’ve been to the museum some times.
sometime
某时
I will visit Daming sometime this summer vacation.
some time
一段时间
She has lived here for some time.
hardly ever (P. 9)
hardly作副词，表示“几乎不”；hard用作副词表示“努力地、猛烈地”，作形容词表示“硬的、困难的”。
He hardly works.
He works hard.
This is a hard work.
How often do you watch TV? (P. 9)
how often意为“多久一次”用来提问频率，常用表示频率的副词或者短语来回答，如twice a week, sometimes, every day, always等。
-How often do you play sports?
-Three times a week.
【拓展】辨析how long, how soon和how often
how long
“多长时间”，提问for和since引出的时间状语
---How long did you stay there?
---For about two weeks.
how soon
“多久”提问“in+一段时间”
---How soon will they come back?
---In two weeks.
how often
“多