1、變否定句的方法及習題：一、當句中有Be(am,is,are功詞的時候，直接在Be(am,is,are剛詞后加not, 通?？s寫。Lg.1.I ma stude-n-t.I m nota student.2.She is my sister. S- he isn tmy sister.3.They areteachers in a school.-T- hey aren tteachers in a school.二、當句中有情態(tài)動詞時候，在情態(tài)動詞(can, may, must)后加not,通常 縮寫。(初一上冊作為了解)Lg.1.I can say myABCs.-I-can t say m

2、yABCs.2.She cansay her ABCs-S-he can tsay her ABCs.三、句中沒有Be動詞和情態(tài)動詞的時候，在動詞前面加don'或doesn',t動詞用原形。當主語是第三人稱單數(shù)(He,She,It或單個的人或物)的時候用 doesn t ，其它都用 don t.Lg.1.She hasa basketball. S- he doesn t have a basketball.My father likesapp-les. My father doesn t likeapples.2.I likebananas.I don t likebanan

3、as.They havemath at 8:00. They don t havemath a0t 08.:注意：1.通常some 改為 any,例如：I have some books- don ' t have anybook嘛習：一含有 be 動詞的句子變否定句：1 .They are my parents.做為否定句)They my parents.2 .This is his pencil box.改為否定句) his pencil box.3 .I ' m KeVin為否定句) Kevin.4.My parents are teachers in a school.

4、 改為否定句()Myteachers in a school.5.She is a student.改為否定句) a student.二沒有 be 動詞和情態(tài)動詞的句子變否定句 :1.I have a soccer ball. 改為否定句()I a soccer ball.2 .Linda has a tennis ball. 改為否定句()Lindaa tennis ball.3 .They like oranges.改為否定句)They oranges.4 .She has history at 3:00.改為否定句()Shehistory at 3:00.5.He wants to pl

5、ay basketball. (改為否定句)Heto play basketball.綜合訓練（改為否定句）：I.Her name is Linda.改為否定句）Her Linda.1.1 m Helen.為否定句）Helen.3 .This is my QQ number. 改為否定句（）my QQ number.4 .They have a soccer ball.改為否定句）Theya soccer ball.5 .My sister has lunch at school. （改為否定句）My sisterlunch at school.6 .Tom likes eggs for br

6、eakfast. 改為否定句（）Tomeggs for breakfast.7 .He likes black. （改為否定句）Heblack.8 .They have a daughter. 改為否定句（）Theya daughter.9 .I want to eat apples. （改為否定句）I to eat apples.10.These are my brothers. （改為否定句）my brothers.11.They like to play ping-pong. （改為否定句）Theyto play ping-pong.12.She likes to watch TV. 改

7、為否定句（）Sheto watch TV.13.Tom and Lisa love to play with their friends. （改為否定句）Tom and Lisato play with their friends.14.Tom wants to play soccer with Kevin. 改為否定句（）Tomto play soccer with Kevin.15.Iwant to buy a book in the book store. （改為否定句）I to buy a book in the book store.16 .They have English at

8、9:30 in the morning. 改為否定句（）TheyEnglish at 9:30 in the morning.17 .She and her friends are 12 years old.改為否定句）She and her12 years old.18 .My book is on my desk. （改為否定句）My bookon my desk.19 .The model plane is in the bookcase. 改為否定句（）The model planethe bookcase.20.She has a ping-pongbat. （改為否定句）Shea

9、ping-pong bat.1.1 Ineed a sweater for school. （改為否定句）I a sweater for school.1.2 I have some apples for breakfast. 改為否定句（）Ihave apples for breakfast.23 .They eat well at home. （改為否定句）Theywell at home.24 .They buy some pencils. 改為否定句（）They buy pencils.25 .He watches TV in the evening 改為否定句（）HeTV in the evening.26 .Jack has a Chinese friend求為否定句）Jacka Chinese friend.27 .My sister has 5 baseballs. 改為否定句（）My sister5 baseballs.28 .This is a photo of my family. （改為否定句）a photo of my family.