课堂练习I. 单项选择：1. What are you doing? I_ A. eat B. can eat C. eating D. am eating2. We want _this book now. A. reading B. am reading C. read D. to read3. Its eight oclock. Jims family _TV. A. is watching B. are watching C. watch D. to watch 4. That boy isnt _the teacher . A. listen B. listens C. listening D. listening to 5._you _ _the window? Yes, I am. A. Do, clean B. Is, cleaning C. Are, cleaning D. Do, cleaning. 用现在进行时填空 ：1.My father _ (read) newspapers in the reading room now.2. Its half past six now.They _ ( run ) over there.3.Look,our English teacher _( talk) with a new student.4. My aunt _( watch ) TV. 5.The boy _ ( clean ) the room.6. Listen ! The girls (sing) in the room.7. Mr. Green and Mrs. Green _ _( look ) for their son.8. The child _ ( open ) the windows.看图完成对话：Hi, Li Xue. What _ you _? Im _. What _ your dad _? Hes _ his car. What _ your mom _? She is _ in the kitchen. What about your sister? Shes _ my mom.