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1、含be动词的肯定句变一般疑问句和否定句I: be的复习：A:【 an is are】B: be动词用法歌：我用am,你用are，is连接他，她，它。单数名词用is，复数名词全用are。C: 练习：用be (is, am, are)动词的适当形式填空。1）I _ a boy. _ you a boy? No, I _ not. 2）The girl_ Jacks sister.3）The dog _ tall and fat.4）_ your brother in the classroom?5）The black gloves _ for Su Yang. 6）How _ your fathe
2、r?7）Mike and Liu Tao _ at school. 8）Whose dress _ this?9）Whose socks _ they? His. 10）Who _ I? 11）The jeans _ on the desk.13）Here _ some sweaters for you.II: 含be动词的肯定句变否定句EG:1. I am your friend. I am not your friend.2.Her mother is a teacher.Her mother is not a teacher.There are two books on the desk
3、.There are not two books on the desk.总结：含be动词的肯定句变否定句：在be动词后面直接加not,其余的照抄。练习：将下列句子改成否定句。1.It is a lovely dog. 2. She is lovely girl. 3. He is my father. 4.They are Lilys cousins. 5.We are classmates. 6. I am a doctor. 7.There is a bird in the tree. 8. There are many stars in the sky. 9.They are good
4、 friends. 10.There are many books on the shelf. 11.There is an ostrich in the zoo. 注意：note:肯定句中有some变any有and变or 。There are some apples. AnyThere are some soup and meat.any or细讲：1.some变为any。如： There are some birds in the tree.There arent any birds in the tree. 但是，若在表示请邀请、请求的句子中，some可以不变。如： （ Would yo
5、u like some orange juice? ）与此相关的一些不定代词如something, somebody等也要进行相应变化。 2.and变为or。如： I have a knife and a ruler.I dont have a knife or a ruler. 3.a lot of (=lots of)变为many或much。如： They have a lot of friends.（可数名词）They dont have many friends. There is lots of orange in the bottle.（不可数名词） There isnt much orange in the bottle. 4.already变为yet。如： I have been there already.I havent been there yet.
