三、把下列句子变成否定句。
1. I am a doctor. __________________________
2.My mother is a TV reporter.
____________________________________
3They are sheep. ____________________________________
4.That is an English book. ____________________________________
5.It’s a dog ．____________________________________
6.Ｔhere is a computer in my room.._______________________________________
7.There is some milk in the box.____________________________________________
8.There are clouds in the sky._________________________________________
9.I can sweep the floor.__________________________
10.Tom can water the fiowers.____________________________
11.I watchTV on Saturday.______________________
12.She goes to school on foot._______________________________
13.I climbed mountains last weekend.______________________
14.I was sad yesterday.________________
15.Mike did his homework last night.____________________
16.I’m going to read books this evening .______________________________________
17.She’s watching TV now。_______
18.My sister works in a hospital.______________________________
19.He is a TV reporter.______________________________
20.Tom likes riding a bike ._____________________
21. I have a blue bag .___________
四、把下列句子改成一般疑问句并作肯定和否定回答。
1.I am a teacher ._________________________________________________________
2.My father is an engineer.__________________________________________________
3．Zhang Peng is a student .________________________________________________
4.This is a ruler .___________________________________________
5.These are apples.__________________________________________
6.I can swim in the sea._________________________________________
7.John can drive a car.______________________________________________
8.The boy is playing the piano._________________________________________
9.I’m going to visit my grandparents next weekend._______________________________
10.I go to school by bike._______________________________________
11.Sarah likes Chinese.___________________________________________
12.There is some water in the box._______________________________________
13.There are four windows in the classroom.___________________________________
14.He read books yesterday .____________________________________________
15.I had a good time last weekend._________________________________________