问题补充：
This is Jim. He is thirteen. He is from the U.S.A. He is a student. He has a good friend. His name is Jack. Jack is fifteen. He is from Australia. Jack is tall but Jim is short. They are in the same class, but they are in different grades. Jim is in Class Two. Jack is in Class Two, too. They go to school(上学) at seven in the morning and go home(回家) at six in the afternoon.
【小题1】Jim and Jack are .A．sistersB．friendC．teacher and studentD．from different countries(国家)【小题2】Jim and Jack are in .A．the same gradeB．different gradesC．the same colorD．the same family(家庭)【小题3】Jack is in .A．Class 4B．Class 3C．Class 2D．Class 1【小题4】They go to school at in the morning.A．6:00B．7:00C．7:30D．8:00【小题5】Jim is .A．shortB．tallC．strongD．bigD
答案：
(答案→)D
解析：
【小题1】细节理解题，根据文中语句This is Jim. He is thirteen. He is from the U.S.A. His name is Jack. Jack is fifteen. He is from Australia.理解可知，Jim和Jack是来自不同的国家，B项错在friend是单数。故选D。
【小题2】细节理解题，根据文中语句“They are in the same class, but they are in different grades”理解可知。Jim和Jack处在不同的年级，故选B。
【小题3】细节理解题，根据文中语句“Jim is in Class Two. Jack is in Class Two, too.”理解可知。Jack在二班故选C。
【小题4】细节理解题，根据文中语句“They go to school(上学) at seven in the morning and go home(回家) at six in the afternoon.”理解可知。他们在早晨7点上学，故选B。
【小题1】细节理解题，根据文中语句but Jim is short.可知选A
