一般现在时( Simple Present Tense)定义：表示通常性、规律性、习惯性、真理性的状态或者动作的一种时间状态。一、出现以下情况是用一般现在时：1)经常性、习惯性的动作或存在的状态。（当表示习惯性动作时，常与频度副词连用，常见的频度副词有 always, often, usually, sometimes, hardly ever, never等。）e.g. I go to school on foot. I often do my homework at 7:00. He usually goes to the park on Sunday morning. He is very busy now. 2)表示主语的特征、性格、能力、爱好等。e.g. He can swim. I work hard. I like watching TV.3)表示客观真理 e.g. There are seven days in a week. The moon moves round the earth.二、 一般现在时的句式变化：1、 动词be联系动词be是表示谓语关系的动词，它的后面必须加表语（通常为名词、形容词或介词短语）。在一般现在时中，be动词有三种形式：am (第一人称单数I)is (第三人称单数he, she, it)are (第二人称you以及第一、第三人称复数we，they）肯定式否定式I am.You are.He/She/It is.We/You/They are.I am not.You are not.He/She/It is not.We/You/They are not.疑问式和简略答语Am I.? Yes, you are. No, you are not.Are we.? Yes, we/you are. No, we/you are not.Are you.? Yes, I am. No, I am not.Are you.? Yes, we are. No, we are not.Is he/she/it.? Yes, he/she/it is. No, he/she/it is not.Are they.? Yes, they are. No, they are not.肯定式否定式其它Im= I amYoure= you areHes=he isShes= she isIts=it isWere= we areTheyre= they areArent= are notIsnt= is notThats= that isWhats= what isWhos= who isWheres= where isMy names= my name is一、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. _there many eggs in the kitchen?10._your card number 5578?11.Where_ your pencils?12.These sweaters _ fifty dollars.13.How much _ his jacket?14.My brothers birthday_ December 11th.15.When _ Kates birthday?16、There_a boy and two girls beside the gate.17、Five and three _ eight.二 、.将下面的句子变成一般疑问句。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. 三、将下面的句子变成否定句1. His card is on the table.2. These are my parents.3. Bob and Tony are our friends.4. These things are five dollars.5. The girl is his sister. 四、划线提问1. Our teachers are in the classroom.2. The girls telephone number is 032-55746.3. Her pen is black.4. September 10th is Teachers Day.5. They are thirteen years old.6. The boy is fine.7. The old man is my grandfather.8. These eggs are five yuan.2、实义动词do.1)表示动作， 一般人称作主语的，变否定句须在动词前加助动词dont；变一般疑问句须在句首加助动词do。 E.g.肯定句 They have lunch at 12:00.否定句 They dont have lunch at 12:00. 疑问句 Do they have lunch at 12:00? 2）单三人称做主语的，变否定句须在动词前加助动词doesnt；变一般疑问句须在句首加助动词does。e.g. 肯定句：He goes to school by bike.否定句：He doesnt go to school by bike.疑问句：Does he go to school by bike? 实际操练1. I have many books. （改为否定句）2.Tom does his homework at home. 否定句: 一般疑问句：3.Mingming usually waters the flowers.否定句: 一般疑问句4.Su Yang usually washes some clothes on Saturday. 否定句: 5. I usually play football on Friday afternoon.否定句: 一般疑问句：强化训练一、写出下列单词的第三人称单数形式1. work_ read_ clean_ write_2. teach_ wash_ guess_ watch_3. go_ do_ 4. study_ fly_ cry_ play_5. have_二选择( ) 1. _ you have a book?A. DoB. AreC. Is D. Have( )2. They _ on a farm. A.are workingB. is workC. workingD. is worked( ) 3. Does Peter like to watch TV?_. A. Yes, he likeB. No, he doesntC. Yes, hed likeD. No, he likes( )4. She doesnt _ her homework in the afternoon.A. doingB. to doC. doesD. do( )5. How _ Mr. Brown _ to America?A. do, goB. is, goC. does, goD. does, goes( )6. Wheres my camera? I_ it.A. am not findingB. am not seeingC. cant findD. cant look at( )7. How _ he go to work? He _ to work by bike.A. does; goB. do; goesC. do ; goD. does; goes( )8. _ you usually late for school? No, _.A. Do; I amB. Does ;notC. Are ; Im notD. Are ; I arent( )9. _ she _ home at six every day?A. Is , leaveB. Does , leaveC. Is , leavesD. Does , left( )10. Mr. Yang _ English this term.A. teaches ourB. teaches usC. teachs usD. teach our三用所给动词的适当形式填空。1. My classmate _ (know) the man on the bike.2. His sister usually _ (go) to school at 7:00 am.3. Lin Tao _