you are. No, you aren’t.
Are they American? Yes, they are. No, they aren’t.
Is the cat fat? Yes, it is. No, it isn’t.
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. 祈使句 Sit down please
Don’t sit 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/They are(not) reading. He/She/It is(not) eating. 动词 —ing 的形式
Most verbs +ing walk—walking Verbs ending in e -e + ing come—coming
Short verbs ending in a vowel + a consonant run –running swim—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.
(情态)动词can,must, should 后面直接用动词原形。 eg:
1. I / He / She / They can sing.
2．You should keep quiet in the library.
16. 一般过去时态 （a） be 动词的过去式:
I/He/she/it was(not)…. You/we/they were…. 一般疑问句was, were 放在句首。 （b） 动词过去式： 肯定句： I watched cartoons. She visited the zoo.
一般疑问句： Did you read book last night? Yes, I did. No, I didn’t.
Did she clean the desk just now? Yes, she did. No, she didn’t.
否定句： They didn’t go the the part yesterday. He didn’t make model ships last week. (3)动词过去式的变化： 规则动词的变化：
Most verbs +ed eg. planted,watered,climbed。 Verbs ending in e +d eg liked。
Verbs ending in a consonant +y --y +ied eg : study—studied
Short verbs ending in a vowel + a consonant eg: stop --stopped
不规则动词的变化： ly-flew/u:/
eat—ate,take—took,run—ran,sing—sang,drink—drank 等等
17. “Wh-” questions. What are you doing? What colour is it?
What time is it? What’s the time?
Which is your watch, the yellow one or the white one?
Who’s the man with a big nose? Whose bag is it? When is your birthday?
is
—was,are—were,do—did,have/has—had,make—made,f
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