题目

如何测一张纸的厚度？ 答案：取同样的纸1000张，然后测出其总厚度为D，则每张纸的厚度就为d＝D/1000George is an English teacher in a middle school. He gets up early every day. He has breakfast at six fifty. He goes to school at seven twenty in the morning. He works very hard all day. He plays football with his students after school. He goes home at five in the afternoon. He has supper at six. After that he does his work in his room. He has a little dog and he likes it very much. He plays with it in the evening. （   ） 1. George teaches _____ in a middle school.       A. math         B. English         C. Chinese                D. P.E. （   ） 2. He has breakfast at _____.       A. six thirty      B. six fifty         C. ten to seven            D. B and C （   ） 3. He plays football with his students _____.       A. after school    B. before class       C. after supper                  D. before lunch （   ） 4. _____ he does his work in his room.       A. After school   B. After supper         C. After class                   D. Before supper （   ） 5. He often plays with his _____ in the evening.       A. little cat        B. big dog         C. big cat               D. little dog