be動詞、助動詞、情態(tài)動詞講解(基礎篇)第一講

1、be動詞、助動詞、情態(tài)動詞講解 （基礎篇）1、be動詞的用法。beam / isare現(xiàn)在時waswere過去時單數(shù)復數(shù)英語中，be動詞選用單數(shù)還是復數(shù)，要由主語來定，主語是單數(shù)，就 用單數(shù)，反之用復數(shù)。句中含有be動詞時：冃疋句：主語+ be +其他否定句：主語+ be + not +其他一般疑問句：Be +主語+其他 +?特殊疑問句：疑問詞(what / who / when / where) +be +主語 +其他+?I am a teacher.You are right.She is 16 years old.My father is athome.The stude nts are

2、 play ing games.My teacher was illyesterday.There is a picture on the wall.There are two books on the table. be動詞用法歌：我用am，你用are, is連接他她它。單數(shù)名詞用is，復數(shù)名詞全用變否定，更容易，be后not變疑問，往前提，句末問號莫丟棄; 莫忘記；疑問否定任你變，句首大寫莫遲疑。 be動詞作謂語，它后面一般跟名詞、形容詞或介詞短語。她個子很高。她在教室里。她是一個高個子的女孩。2、助動詞的用法。英語句子按正常語序是 什么人或事物” +做什么”，即，我們常說的 主 語+謂語

3、+其他”?？隙ň洌篒 / We / They / The students 動詞原形 其他 。 We watch TV every night.變否定：主語 dont 動詞原形 其他 。We dontwatch TV every night.一般疑問句Do + 主語 + 動詞原形 + 其他 + ？Do you watch TV every night?Yes, we do. /No, we dont.特殊疑問句：疑問詞 + do + 主語 + 動詞原形 + 其他 + ？ How often do you watch TV? 主語為單數(shù)名詞或代詞時： 肯定句： 主語 + 動詞第三人稱單數(shù)形式 +

4、 其他 + 。He watches TV every night.否定句：主語+ doesn+動詞原形+其他+。He doesntwatch TV every night.一般疑問句： Does + 主語 + 動詞原形 + 其他 + ？Does he watch TV every night?Yes, he does. / No, he doesnt.特殊疑問句：疑問詞 + does + 主語 + 動詞原形 + 其他 + ？How often does he watch TV? 主語為單數(shù)或不可數(shù)名詞，謂語要用單數(shù)第三人稱，反過來，看見動詞用了單數(shù)第三人稱，可以推知主語是單數(shù)或不可數(shù)名詞。()

5、1. How your dad help at home?A. doB. doesC. is()2. goes bad easily in summer.A. MilkB.Apples C. Cakes 過去時的句式 (當句子時態(tài)為過去時時， 動詞用過去式， 不受主語單復數(shù)的影響)肯定句：主語 + 過去式 + 其他 + 。He / We got up early every morning last year.否定句：主語 + didnt+ 動詞原形 + 其他 + 。He / We didnt get up early every morning last year.一般疑問句：Did + 主

6、語 + 動詞原形 + 其他 + ？Did he / you get up early every morning last year? Yes, he / we did./No, he / we didnt.特殊疑問句：疑問詞 + did + 主語 + 動詞原形 + 其他 + ?When did he / you get up every morning last year? 初中階段， 助動詞一般只出現(xiàn)在否定句或疑問句中， 助動詞用在肯 定句中表示強調(diào)。3、情態(tài)動詞的用法。 情態(tài)動詞表示說話人的語氣或情態(tài)。初中英語中，常見的情態(tài)動詞有： can (could), may (might), s

7、hould, must, will (would), ought to, have to, n eed 等。 情態(tài)動詞的共同點：不受主語單復數(shù)的影響；情態(tài)動詞后用動詞原 形。情態(tài)動詞和動詞原形共同構(gòu)成謂語部分?？隙ň洌褐髡Z + 情態(tài)動詞 + 動詞原形 + 其他 + 。 She / They can swim well.否定句：主語 + 情態(tài)動詞 + not + 動詞原形 + 其他 + 。 She / They can not swim well.一般疑問句：情態(tài)動詞 + 主語 + 動詞原形 + 其他 + ？ Can she / they swim well?Yes, she / they ca

8、n. /No, she / they cant.特殊疑問句：疑問詞 + 情態(tài)動詞 + 主語 + 動詞原形 + 其他 + ?Why can she / they swim well?Who can swim well?練習選擇填空：1. My brothera teacher. Hehis pupils very much.A. is, like B. is, likes C. are, likes D. are, like2. A: How many daysthere in a week?B: Thereseven.A. is, is B. are, areC. is, areD. are,

9、 is3. The boyill today.A. areB. isC. beD. am4. Whatyour fatherA. do, like B. is, like C. are, likes D. does, like5.you go to school by bus?6. WhenA. Are B. Is C. Do D. Doesyour birthday?7. WhichA. are B. is C. do D. doesbigger, the sun or the moon?A. are B. is C. Be D. x8. My teacher often shopping

10、on Sundays.A. goes B. gos C. go D. goed9. Listen! The children.A. sings B. are singing C. is singing D. is sing10. Her voice like my mothers.A. sounds B. sound C. looks D. look11. It often rains and the crops fast.A. get B. turn C. grow D. become12. A: How are you now?B: Much better, thank you.A. ge

11、ttingB. feeling C. making D. turning13. He swimming.A. don t likesB. doesn t likeCs. not like D. doesn t like14. What they on Saturdays?A. does, does B. do, do C. do, does D. does, do15. Yang Lingdo exercise with.A. doesn t, uBs. don t, weC. /, us D. don t, usI. 填入適當?shù)闹^語動詞1. I _ a boy. you a boy? No,

12、 I _ not.2. The girl Jack ssister.3. The dog tall and fat.4. The man with big eyes a teacher.5. your brother in the classroom?6. Where your mother? She at home.7. How your father?8. Mike and Liu Tao at school.9. Whose dress this?10. Whose socks they?11. That my red skirt.12. Who I?13. The jeans on t

13、he desk.14. Here a scarf for you.15. Here some sweaters for you.16. The black gloves for Su Yang.17. This pair of gloves for Jim.18. Physics my favorite subject.19. The police running after the thief.20. Our class going to the zoo.ii .將下列句子奇數(shù)變成否定句，偶數(shù)變疑問句。1. I like music.2. He walks to school.3. They

14、 often have English on Monday.4. The boys are swimming in the river.5. She smiles happily.6. Mary went to the zoo last week.7. The workers made many cars in the factory.8. We should protect the innocent.9. Her parents fly to London twice a month.10. All my classmates climbed the Tai Mount last autumn.11. The teacher asks us to clean the classroom.12. He will go back