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1、Grammar一般现在时一般现在时 (Simple Present Tense )一般现在时的用法一般现在时的用法My hair is long. 表示现在存在的状态。表示现在存在的状态。I am a teacher. You are students.Simon often plays football after class.表示经常性、习惯性的动作。表示经常性、习惯性的动作。Cats eat fish. 表示客观事实或普遍真理。表示客观事实或普遍真理。一般现在时用法小结一般现在时用法小结 英语句子的时态是指句中谓语英语句子的时态是指句中谓语动词在不同的时间和状况下所使用动词在不同的时间和
2、状况下所使用的某种动词形式。的某种动词形式。一一. 当我们谈论以下几种情况时当我们谈论以下几种情况时,用用一般现在时：一般现在时：1. 表示现在存在的状态表示现在存在的状态; 2. 表示经常性、习惯性的动作表示经常性、习惯性的动作; 3. 表示客观事实或普遍真理。表示客观事实或普遍真理。例句：例句：1. I am a teacher.2. You are students.3. We are good friends.4. They are on the football field.5. Simon and Sandy are classmates.6. He is a polite and
3、 helpful boy.7. She is tall and slim.8. It is an e-dog.9. Her hair is long. “ be ”动词的一般现在时形式有三种动词的一般现在时形式有三种：am, is , are。你能自己总结吗？你能自己总结吗？人称to be 形式happy.IYou/We/TheyHe/She/Itamareis缩写形式：缩写形式：Im Youre/Were/Theyre Hes/Shes/Its用法口诀：用法口诀：“我我(I)”用用am ,“你你(you)”用用are,“is用于用于“他他(he)”、“她她(she)”、“它它(it)”,复数
4、人称都用复数人称都用“are”。Exercises:1. I _ an English teacher.2. We _ in the classroom.3. Our school _ big.4. You _ middle school students.5. These flowers _ over there.6. Eddie _ a dog.7. Your brother _ in Class 2, Grade 3.8. Your classmates _ on the playground now.areisareisamareisareI am a teacher.I am not
5、 a student.Our school is big.Our school is not small.We are in the classroom.we are not in the park. “ be ”动词的一般现在时的否定形式：动词的一般现在时的否定形式：am, is , are + not你能自己总结吗？你能自己总结吗？人称to be 形式happy.IYou/We/TheyHe/She/Itam notare notis not缩写形式：缩写形式：are not = arent is not = isnt am not 没有缩写形式没有缩写形式Exercises: （写出（写
6、出be动词的否定形式）动词的否定形式）1. I _ a middle school student.2. You _ 22 years old.3. The little girl _ very tall.4. We _ from the USA.5. These boys _ your classmates.6. Eddie _ an e-dog. are notare notis notam notare notis notIs Eddie an e-dog?Yes, it is. / No, it isnt.Ihappy?you/we /theyhe/she /itAmAreIsYes,
7、Iyou/we /theyhe/she /itamareisYes,Iyou/we /theyhe/she /itam notare notis not例句例句:(一一) 一般疑问句及其肯定回答和否定一般疑问句及其肯定回答和否定 回答回答 1. Am I the first? Yes, you are. No, you arent.2. Are you good at swimming? Yes, I am. / Yes, we are. No, Im not. / No, we arent.3. Is Simon tall? Yes, he is. No, he isnt. 巩固练习巩固练习
8、将下列句子变成将下列句子变成(1)一般疑问句并作肯定和否定回答一般疑问句并作肯定和否定回答; (2)变成否定句。变成否定句。We are good friends.(1) Are you good friends? Yes, we are. / No, we arent.(2) We arent good friends.Simon and Sandy are classmates.(1) Are Simon and Sandy classmates? Yes, they are. / No, they arent.(2) Simon and Sandy arent classmates.Her hair is long.(1) Is her hair long? Yes, it is. / No, it isnt.(2) Her hair isnt long.1. Remember the use to be in the simple present tense.2. Preview the next part of the simple present tense. Homework