Johnny Smith was a good math student at a high school. He loved his computer. He came home

Johnny Smith was a good math student at a high school. He loved his computer. He came home early every day, then he worked with it till midnight. But Johnny was not a good English student, not good at all. He got an F in his English class. One day after school Johnny joined his computer to the computer in his high school office. The school office computer had the grades of all the students: the math grades, the science grades, the grades in arts and music, and the grades in English. He found his English grade. An F! Johnny changed his English grade from an F to A. Johnny’s parents looked at his report card. They were very happy. “An A in English!” said Johnny’s Dad. “You’re a very clever boy, Johnny.”
Johnny is a hacker (黑客). Hackers know how to take information from other computers and put new information in. Using a modem (调制解调器), they join their computers to other computers secretly. School headmasters and teachers are worried about hackers. So are the police, for some people even take money from bank computer account (账户) and put it into their own ones. And they never have to leave home to do it! They are called hackers.
【小题1】Johnny changed his English grade with the computer in .A．the classroomB．the school officeC．his own houseD．a bank near his house【小题2】When Johnny’s parents saw the report, they were happy because .A．Johnny was good at mathB．Johnny loved computersC．Johnny could join one computer to anotherD．they thought Johnny was not poor in English any longer【小题3】Who are worried about hackers in the story? A．Johnny’s parents.B．School headmasters, teachers and the police.C．The police.D．School headmasters and teachers.【小题4】What should the hackers know well, do you think, after you read this story?A．Information.B．Grades.C．Computers.D．Back computer accounts.【小题5】The last paragraph is about . A．JohnnyB．computersC．hackersD．modemC

(答案→)C 解析：【小题1】C 细节题。根据第一段第三行. One day after school Johnny joined his computer to the computer in his high school office说明他放学回家以后在家里改了成绩，故C正确。【小题2】D 推理题。根据第一段倒数2,3行Johnny changed his English grade from an F to A. Johnny’s parents looked at his report card. They were very happy. 说明他们看到他的成绩报告单上英语是A，因为他的英语成绩好起来了。故D正确。【小题3】B 细节题。根据第二段2,3行School headmasters and teachers are worried about hackers. So are the police说明B正确。【小题4】C 细节题。根据文章第二段1,2行Johnny is a hacker (黑客). Hackers know how to take information from other computers and put new information in. Using a modem (调制解调器), they join their computers to other computers secretly.说明黑客非常了解电脑方面的知识，故C正确。【小题5】C 段落大意题。文章最后一段正是关于黑客方面的知识。C 正确。

这个答案应该是对的