it’s = it is who’s =who is can’t =can not isn’t=is not etc
8. Preposition：
on， in ，in front of， between， next to， near， beside， at， behind.
表示时间： at six o’clock， at Christmas， at breakfast
on Monday on 15th July On National Day
in the evening in December in winter
9. 基数词和序数词
one – first two-second twenty-twentieth
10. Some /any
I have some toys in my bedroom.
Do you have any brothers or sisters?
11. there be 结构
肯定句： There is a …
There are …
一般疑问句：Is there …? Yes， there is./ No， there isn’t.
Are there…? Yes， there are. /No， there aren’t.
否定句： There isn’t …. There aren’t….
12. 一般现在时。通常用 “usually， often， every day， sometimes”。
形式：
肯定句：
I go to school on foot every day.
She goes to school on foot every day.
一般疑问句：
Do you jump high? Yes， I do. / No， I don’t.
Does he jump high? Yes， he does. / No， he doesn’t.
否定句： We don’t go to school on Sundays.
My mother doesn’t like watching TV in the evening.
13. 祈使句
Sit down please
Don’t sit down， please.
14. 现在进行时.通常用“now”.
形式： be + verb +ing
eg： I am(not) doing my homework.
You/We/They are(not) reading.