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(guān)事實(shí)描述客觀(guān)事實(shí)I am from China.我來(lái)自中國(guó)。我來(lái)自中國(guó)。 描述目前的事實(shí)。描述目前的事實(shí)。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(yǔ)句子的時(shí)

2、態(tài)是指句中謂語(yǔ)動(dòng)詞在英語(yǔ)句子的時(shí)態(tài)是指句中謂語(yǔ)動(dòng)詞在不同的時(shí)間和狀況下所使用的某種動(dòng)不同的時(shí)間和狀況下所使用的某種動(dòng)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(shí)描述客觀(guān)事實(shí)、目我們常使用一般現(xiàn)在時(shí)描述客觀(guān)事實(shí)、目前的事實(shí)和現(xiàn)在的狀態(tài)。前的事實(shí)和現(xiàn)在的狀態(tài)。He is from Nanjing.他從南京來(lái)。他從南京來(lái)。Lee is my

3、 friend.李是我的朋友。李是我的朋友。My hair is long.我是長(zhǎng)頭發(fā)。我是長(zhǎng)頭發(fā)。 注意注意主語(yǔ)可以是人稱(chēng)代詞，也可以是名詞，動(dòng)主語(yǔ)可以是人稱(chēng)代詞，也可以是名詞，動(dòng)詞詞be的選擇要與主語(yǔ)相一致。的選擇要與主語(yǔ)相一致。The dog is very lovely.這只小狗很可愛(ài)。這只小狗很可愛(ài)。These apples are big and red.這些蘋(píng)果又大又紅。這些蘋(píng)果又大又紅?！?be ”動(dòng)詞的一般現(xiàn)在時(shí)形式有三種動(dòng)詞的一般現(xiàn)在時(shí)形式有三種：am, is , are。be動(dòng)詞用法口訣：動(dòng)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(chēng)都用復(fù)數(shù)人稱(chēng)都用“are”。如果主語(yǔ)是代詞，動(dòng)詞如果主語(yǔ)是代詞，動(dòng)詞be與前面主語(yǔ)在與前面主語(yǔ)在一起時(shí)，在非正式行文中可以縮寫(xiě)。如：一起時(shí)，在非正式行文中可以縮寫(xiě)。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(shí)一般現(xiàn)在時(shí)be動(dòng)詞在肯定句中的用法動(dòng)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(shí)一般現(xiàn)在時(shí)be動(dòng)詞的否定句動(dòng)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(dòng)詞動(dòng)詞be一般現(xiàn)在時(shí)的否定句是在一般現(xiàn)在時(shí)的否定句是在be后面加后面加not構(gòu)成。動(dòng)詞構(gòu)成。動(dòng)詞be與與not可以縮寫(xiě)，如：可以縮寫(xiě)，如： is not = isnt; are not = are

7、nt。 一般現(xiàn)在時(shí)一般現(xiàn)在時(shí)be動(dòng)詞的動(dòng)詞的一般疑問(wèn)句及其肯定答一般疑問(wèn)句及其肯定答AmIhappy? Yes,Iam.Areyou/we /theyyou/ we/ theyare.Ishe/she /ithe/she/itis.動(dòng)詞動(dòng)詞be一般現(xiàn)在時(shí)的一般疑問(wèn)句是將一般現(xiàn)在時(shí)的一般疑問(wèn)句是將be提提前于句首構(gòu)成。前于句首構(gòu)成。 一般疑問(wèn)句的否定回答一般疑問(wèn)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(xiě)形式小結(jié)：縮寫(xiě)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(dòng)詞一般現(xiàn)在時(shí)的否定句動(dòng)詞一般現(xiàn)在時(shí)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(wèn)句及其肯定回答和否定回答一般疑問(wèn)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(wèn)句并作肯定和否定回答一般疑問(wèn)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