概要：been、slept 和studied都是过去分词(past participle)，以下的句子也都是现在完成式，我们后讨论完成式的时候，会将这些解释清楚的。规则(7)：英文问句要有助动词我们先看看以下的英文句子，这些都是错的：* How many books you wrote?* How many sons you have?正确的句子是：Why do you drink so much water?How many books did you write?How many sons do you have?绝大多数的英文问句子是一定要有助动词，以下全是正确的英文问句，你可以看出每一句的助动词吗?Do you love me?Did you go to school yesterday?How many books do you have?How much money does he have?Why don’t you go back home?Do you like to swim?Can you play violin?Will you go
专为中国人写的英语语法（一）,标签：九年级英语语法,http://www.kgf8.combeen、slept 和studied都是过去分词(past participle)，以下的句子也都是现在完成式，我们后讨论完成式的时候，会将这些解释清楚的。
规则(7)：英文问句要有助动词
我们先看看以下的英文句子，这些都是错的：
* How many books you wrote?
* How many sons you have?
正确的句子是：
Why do you drink so much water?
How many books did you write?
How many sons do you have?
绝大多数的英文问句子是一定要有助动词，以下全是正确的英文问句，你可以看出每一句的助动词吗?
Do you love me?
Did you go to school yesterday?
How many books do you have?
How much money does he have?
Why don’t you go back home?
Do you like to swim?
Can you play violin?
Will you go home tomorrow?
Would you give me a call?
当然啦，一旦动词是verb to be，我们又不需要助动词了，以下都是正确的英文问句：
Are you a teacher?
Is he a student?
Is Mr. Chang your father?
Were your mother and father in England last year?
规则(8)：特殊动词随主词的变化
英文中，有些动词因主词不同而改变，verb to be是其中之一，因此，我们必须记得以下的规则：
第一人称 第二人称 第三人称
现在式 单数 I am You are (He，She，It)is
复数 We are You are They are
过去式 单数 I was You were (He，She，It)was
复数 We were You were They were
Verb to have也有类似的变化：
第一人称 第二人称 第三人称
现在式 单数 I have You have (He，She，It)has
复数 We have You have They have
过去式 单数 I had You had (He，She，It)had
复数 We had You had They had
【练习一】
以下的句子都有错，请将正确的句子写出来：
1.* I am like my parent.
2.* He is loves his teacher.
3.* He keeps swim every day.
4.* He wants drink a glass of water.
5.* He likes play violin.
6.* Jack do not love mathematics.
7.* Mary hate singing.
8.* My mother cook very good food.
9.* He want me to see him tomorrow.
10.* He not knows my name.
11.* I not like you.
12.* He not like swimming.
13.* You not went home.
14.* I not like swimming.
15.* I wanted to went to my mother’s home.
16.* I do not like to swimming.
17.* I did not ate dinner.
18.* I will not went home.
19.* He did not went home.
20.* You may leaving now.
21.* He can swimming.
22.* He does not goes to work.
第二章 现在式和现在进行式
2§1 现在式
英文中，现在式(present tense)好像是最容易的，其实现在式都是我们常常用错的时式。
首先，我们不妨举一个例子来说明我们对现在式惯有的误解，假设我们要说〝我在吃午饭〞，这总该用现在式了吧。很多人将这句话翻成
I eat lunch.
这就错了，因为〝I eat lunch.〞的意思并不是〝我在吃午饭〞，而是〝我有吃午饭的习惯〞，意思是说，有人中午不吃午饭(可能是在减肥)，我可是每天中午都会吃午饭的。
〝我在吃午饭〞，应该要用现在进行式，这是我们以后会谈的。
现在式不是指任何一个行为，而是一种状况。举例来说，以下几句话都应该用现在式：
我是一个学生 I am a student.
他是一个老师 He is a teacher.
他每天游泳 He swims every day.
汤姆勤奋工作 Tom works hard
他早起 He gets up early.
玛莉喜欢看电影 Mary loves watching movies.
这里常常下雨 It rains often here.
我每天喝一杯牛奶 I drink a glass of milk every day.
我是中国人 I am a Chinese.
他会讲英文 He speaks English.
他有喝茶的习惯 He drinks tea.
我骑脚踏车上学 I ride a bicycle to school.
他搭乘公车上班 He rides a bus to go to work.
我不喜欢你 I do not like you.
他爱他的太太 He loves his wife.
他守法 He obeys the law.
我不喜欢莎士比亚 I do not like Shakespeare.
他不抽烟 He does not smoke.
他喝酒 He drinks.
他唱歌唱得很好 He sings well.
他跳舞跳得很好 He dances well.
他不会游泳 He can not swim.
他不是一个好学生 He is not a good student.
他们都很懒 They are all very lazy.
凡是真理，自然界的现象，数学里的定理，都要用现在式：
太阳从东方升起 The sun rises in the east.
地球是圆的 The earth is round.
月亮是地球的一个卫星 The moon is a satellite of the earth.
美国是一个大的国家 America is a large country.
在北极的夏天，太阳永不落下 The sun never sets at the North Pole in summer.
树叶吸收二氧化碳 Tree leaves absorb CO2 .
计算机的基本原理是布尔代数 The basic principle of computers is Boolean algebra
二点决定一线 Two points define a line.
三点决定一平面 Three points define a plane.
三基本颜色是红、黄、蓝 Three of the basic colors are red, yellow and blue.
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