【现在进行时】
1.现在进行时表示现在正在进行或发生的动作，也可表示当前一段时间内的活动或现阶段正在进行的动作。
2.现在进行时的肯定句基本结构为be动词ing。
3.现在进行时的否定句在be后加not。
4.现在进行时的一般疑问句把be动词调到句首。
5.现在进行时的非凡疑问的基本结构为：
疑问词不达意 be 主语 动词ing?
但疑问词当主语时其结构为：
疑问词不达意 be 动词ing?
动词加ing的变化规则
1.一般情况下，直接加ing，如：cook-cooking
2.以不发音的e结尾，去e加ing，如：make-making， taste-tasting
3.假如末尾是一个元音字母和一个辅音字母，双写末尾的辅音字母，再加ing，如：run-running， stop-stopping
【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：
is/am-was,are-were,do-did,have/has-had,make-made,fly-flew/u:/
eat-ate,take-took,run-ran,sing-sang,drink-drank 等等
【一般现在时】
通常用 "usually, often, every day, sometimes"。
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.
【 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….
【 be 动词】
(1) Basic form: am/are/is
(2) 肯定和否定句 I am(not) from London.
My eyes are(not) small.
My hair is(not) long.
(3)一般疑问句： Am I a Chniese? Yes, 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.
