7AUnit1Grammar (3)

1、Unit 1 This is me!Unit 1 This is me!Look at the sentences and find the rules of simple present tense.I am a student. 描述客觀事實描述客觀事實I am from China.我來自中國。我來自中國。 描述目前的事實。描述目前的事實。Sandy is my classmate.He is 12 years old. 他十二歲。他十二歲。 描述現(xiàn)在的狀態(tài)。描述現(xiàn)在的狀態(tài)。We are in Class 1.We are very happy. 我們非常高興。我們非常高興。英語句子的時

2、態(tài)是指句中謂語動詞在英語句子的時態(tài)是指句中謂語動詞在不同的時間和狀況下所使用的某種動不同的時間和狀況下所使用的某種動詞形式。詞形式。We use the simple present tense when We use the simple present tense when we talk about facts and states.we talk about facts and states.我們常使用一般現(xiàn)在時描述客觀事實、目我們常使用一般現(xiàn)在時描述客觀事實、目前的事實和現(xiàn)在的狀態(tài)。前的事實和現(xiàn)在的狀態(tài)。He is from Nanjing.他從南京來。他從南京來。Lee is my

3、 friend.李是我的朋友。李是我的朋友。My hair is long.我是長頭發(fā)。我是長頭發(fā)。 注意注意主語可以是人稱代詞，也可以是名詞，動主語可以是人稱代詞，也可以是名詞，動詞詞be的選擇要與主語相一致。的選擇要與主語相一致。The dog is very lovely.這只小狗很可愛。這只小狗很可愛。These apples are big and red.這些蘋果又大又紅。這些蘋果又大又紅?！?be ”動詞的一般現(xiàn)在時形式有三種動詞的一般現(xiàn)在時形式有三種：am, is , are。be動詞用法口訣：動詞用法口訣：“我我(I)”用用am ,“你你(you)”用用are,“is用于用于

4、“他他(he)”、“她她(she)”、“它它(it)”,復(fù)數(shù)人稱都用復(fù)數(shù)人稱都用“are”。如果主語是代詞，動詞如果主語是代詞，動詞be與前面主語在與前面主語在一起時，在非正式行文中可以縮寫。如：一起時，在非正式行文中可以縮寫。如： I am = Im You are = YoureI am = Im You are = Youre She is = Shes He is = Hes She is = Shes He is = Hes It is = Its We are = Were It is = Its We are = Were They are = Theyre They are =

5、 Theyre be 用法如下：用法如下：一般現(xiàn)在時一般現(xiàn)在時be動詞在肯定句中的用法動詞在肯定句中的用法I am 或或 Im happyYou/We/They are或或 Youre/Were/TheyreHe/She/It is 或或 Hes /Shes /Its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 helpful b

6、oy.7. It is an e-dog.8. Sandy is tall and slim.9. Her hair is long.一般現(xiàn)在時一般現(xiàn)在時be動詞的否定句動詞的否定句I am not或或 Im nothappyYou/ We / They are not或或 You / We / They arentHe / She / It is not 或或 He / She / It isnt動詞動詞be一般現(xiàn)在時的否定句是在一般現(xiàn)在時的否定句是在be后面加后面加not構(gòu)成。動詞構(gòu)成。動詞be與與not可以縮寫，如：可以縮寫，如： is not = isnt; are not = are

7、nt。 一般現(xiàn)在時一般現(xiàn)在時be動詞的動詞的一般疑問句及其肯定答一般疑問句及其肯定答AmIhappy? Yes,Iam.Areyou/we /theyyou/ we/ theyare.Ishe/she /ithe/she/itis.動詞動詞be一般現(xiàn)在時的一般疑問句是將一般現(xiàn)在時的一般疑問句是將be提提前于句首構(gòu)成。前于句首構(gòu)成。 一般疑問句的否定回答一般疑問句的否定回答No, I am not或或 Im not happy. you/we/they are not或或arenthe/she/it is not 或或 isnt縮寫形式小結(jié)：縮寫形式小結(jié)：Im = I amyoure/were/

8、theyre = you/ we/ they are hes/shes/ its = he/ she/ it is isnt = is notarent = are not例句：例句：(一一) be 動詞一般現(xiàn)在時的否定句動詞一般現(xiàn)在時的否定句: 1. I am not a student. 2. You arent good at swimming. 3. Simon isnt tall.(二二) 一般疑問句及其肯定回答和否定回答一般疑問句及其肯定回答和否定回答 1. Am I the teacher? Yes, you are. No, you arent.2. Are you good

9、at English? Yes, I am. / Yes, we are. No, Im not. / No, we arent.3. Is Simon tall? Yes, he is. No, he isnt. 將下列句子變成將下列句子變成(1) 一般疑問句并作肯定和否定回答一般疑問句并作肯定和否定回答; (2) 變成否定句。變成否定句。We are good friends.(1) Are you good friends? Yes, we are. / No, we arent.(2) We arent good friends.Simon and Sandy are classmat

10、es.(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.Millie is talking to her new friends. Complete their conversation with the correct forms of the verb to be.Millie: Hi, Sandy. Our school _ big.Sandy: Yes, it _. The classrooms _ big too.Simon: Our teachers _ nice. Mr Wu _ a good teacher.is isis isareareareareis isSandy: _ he our Chinese teacher?Millie: No, he _. He _ our English teacher. Simon: _ you go