Unit 4 Then and now第一课时一、选词填空。 or in about on at 1. Could you see stars_ night? 2. Tell us _ your school? 3. I was born _ 2005. 4. I look it up _ the Internet. 5. There were no computers _ Internet in our times.二、 单项选择。1. There was _ library in his old school. A. not B. no C. no a2. Could you _ the moon at night?A. look B. Watched C. see3.He _ on the moon at nigh