语法
12. 祈使句Sit down please
Don’tsit down, please.
13. 现在进行时.通常用“now”.
形式： be + verb +ing
eg:I am(not)doing my homework.
You/We/Theyare(not) reading.
He/She/Itis(not)eating.
动词—ing 的形式
大多数动词+ing walk—walking
以e结尾的动词-e + ing come—coming
重读闭音节结尾的动词 run –runningswim—swimming
14一般现在时。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. 对四年级的孩子们是不是有一点难啊
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