题目内容：

Cheating has been around forever, and millions of ways to cheat have been fashioned. Copying homework and cheat sheets are some of the most basic ways. Desperate students have even gone as far as to steal the test or scan in bottle wrappers and put answers into the nutrition label. The Internet has now become available in almost every location, which opens a doorway for even more methods of cheating to be born.

There are countless opinions on whether or not cheating can be justified. Students often rationalize their cheating by claiming they forgot to look over the material or did not understand what the teacher was saying. Some other reasons students believe cheating is justified are their heavy workloads and they are struggling to find time for school, sports and etc. The majority of students who think cheating is acceptable may believe the reason for this is that there is not enough time given for assignments, or that the information is too much for the course.

It may be difficult to accomplish, but cheating can be prevented. Teachers and professors have tried many options to stop cheating, from simply spreading test-takers out in a room, to expelling（驱逐）a student. One simple way to fix the problem is to scold the student when caught. They may be so scared or embarrassed that they never do it again. This is a risky way to prevent cheating in some cases, however, because it can possibly damage self-esteem. Another simple way to avoid cheating is to create many different kinds of the same test, but students still have the option of using other cheating tactics.

There may be a million ways to cheat and get away with it, but there are few times, if any, that it is justified. Cheating never has to be a necessity. This problem is spreading throughout America; with everyone's help, it can be stopped.

1.What does the underlined word “justified” probably mean in this passage?

A. reasonable    B. necessary

C. praiseworthy    D. preventable

2.The reason that is given by most students who think cheating is understandable is that    _____.

A. they don't understand their teachers' words

B. they bury themselves in a lot of homework

C. they don't have enough time to complete the study tasks

D. they forget to look over the material

3.What is the disadvantage of scolding the cheating students according to the passage?

A. They may continue to cheat next time.

B. They may be hurt mentally.

C. They may use other cheating tactics.

D. They may get on badly with their teachers.