一般现在时讲解及练习题
一般现在时
①表示现在的状态，如：She is ten. Kate is in the classroom.
②表示经常发生或习惯性的动作或状态，如:We often call to each other. 我们时常相互通信。
③表示主语现在的性格、特征、能力，如：I like English. We can speak English.
I.当谓语动词是be时
谓语动词be包括am,is ,are.其用法是:我(I)用am;你(you)用are; is用于他(him)她(her )它(it );复数人称都用are.
主要句式：
1.肯定句式主语＋be(am,are,is)＋其他。
2.否定句式主语＋be(am,are,is)＋not＋其他。
3.一般疑问句将提前be(am,are,is) ,
即:Be(am,are,is)＋主语＋其他？
肯定回答Yes,主语（必须是代词）＋be （am,are,is）
否定回答No,主语（必须是代词）＋
be(am,are,is )＋not（必须用缩写形式
isn't/aren't）
闯关练习I.用be的适当形式填空
1.---How____ you? ---I____ fine.
2.I___ David,and my family name___ Green.
3.---What color ___ your clock? ---It___ white.
4.---What___ this in English?---It___ an apple.
5.Toy___my brother.David____my brother,too.They ___ my brothers.
6.Look!These____apple trees.
7.We____ good students and you____ good teacher.
8.My sister and my brother_____ students.
9.Five and three ____ eight.
10.____your card number 5578?
11.Where_____ your pencils?
12.These sweaters ______ fifty dollars.
13.How much ____ his jacket?
14.My brother’s birthday____ December 11th.
15.When _____ Kate’s birthday?
II.将下面的句子变成一般疑问句并作出回答
1.That is my football.
2.Those are his books.
3.Jim and Tom are good friends.
4.My birthday is November 1st.
5.His son is twelve years old.
III.将下面的句子变成否定句
1.His card is on the table.
2.There is some water in the bottle.
3.Bob and Tony are our friends.
4.There are thirty-five students in the classroom.
5.The girl is his sister.
II.当谓语动词是实义动词时
1.当主语是第一人称( I \ we );第二人称( you)及复数时
主要句式：
(1)肯定句主语＋实义动词＋其他
(2)否定句主语＋don’t＋实义动词＋其他
(3)一般疑问句Do＋主语＋实义动词＋其他
肯定回答：Yes,主语（必须是人称代词）＋do.
否定回答：No,主语（必须是人称代词）＋don’t.
2.当主语是第三人称单数he, she, it及单数的名词时，主要句式：
(1)肯定句：主语＋实义动词的第三人称单数形式＋其他
(2)否定句：主语＋doesn’t＋实义动词的原形＋其他
(3)一般疑问句Does＋主语＋实义动词的原形＋其他
肯定回答：Yes,主语（必须是人称代词）＋does 否定回答：No,主语（必须是人称代词）＋doesn’t
动词第三人称单数形式变化规则：特殊变化
have----has
一、一般情况加s，例如：looks, likes, wants, plays,
二、以ch, sh, s, x或o结尾的词，加-es，例如：teaches, washes, guesses, goes, does
三、辅音字母+y结尾，变y为i加-es，例如：carry →carries, study→studies
闯关练习I..将下面的句子变成一般疑问句并作出回答
1.I have a baseball.
2.Meria likes apples very much.
3.He plays Ping-pang every day.
4.We watch TV in the evening.
5.Mr Wang often buys lots of things.
6.Jane and Mary go to school at 7:30.
II. 将下面的句子变成否定句
