Some bad habits can actually turn out to be helpful.Though they may cause trouble most of the time，yet，there are those examples when they seem to fit the situation perfectly.

Some people have bad habits of pointing out others’ mistakes.They are always telling their friends or family members what they are doing wrong.It gets annoying for the person being picked on.Quite a bit of anger can build up over this.

However，there may come a time when they will actually point out the bad habit you have not realized before.They may stop you from making a huge mistake.You may be glad you hear their criticism，however.

If you complain too much，people will tell you that you have too many“bad habits”.It does create a negative environment when someone is always seeing the worst in everything.However，sometimes the only times you can get anything done are when you complain.

Working too hard is generally a bad habit.It is bad for your relationships and it is bad for your health.You feel that you will not succeed unless you put in overtime.Mostly，this is not true.Yet，there are times when the extra work can pay off.This is true especially if you allow yourself to indulge this bad habit for only the period of a short project.

Breaking the rules almost always involves bad habits.On the other hand，some of the world’s greatest heroes have broken the laws of the established scientific tradition.They did it against the rules they thought wrong or questionable.The world would be a different place if these people had been afraid of havin these“bad habits”.That is why not all habits can be strictly labeled bad or good.It has to go by the situation.

（  ）5.The underlined part in Paragraph 2 means“_____”.

A.blamed

B.praised

C.ignored

D.startled

5.A【解析】词义猜测题。根据上下文可知，此处pick on指“批评，指责”的意思。故选A。

（  ）6.Working too hard may turn out to be helpful if you_____.

A.keep a good relationship with your partners

B.pay close attention to your physical health

C.work overtime for a one-week research project

D.stay up late for a 6-month building project

6.C【解析】细节理解题。根据第五段最后一句“This is true especially if you allow yourself to indulge this bad habit for only the period of a short project.”可知，只有在短期项目中超时加班时，过度工作才会对你有益。故选C。

（  ）7.According to the passage，which of the following statements is correct？

A.Habits can be simply classified as good or bad.

B.Bad habits usually bring about serious problems.

C.All bad habits may become helpful on certain occasions.

D.Whether a habit is good depends on when and wher it happens.

7.D【解析】细节理解题。根据文章最后两句“That is why not all habits can be strictly labeled bad or good.It has to go by the situation.”可知，并非所有的习惯都能严格地贴上好或坏的标签，必须要根据具体情况来确定这种习惯是好是坏。故选D。

（  ）8.What is the author’s attitude towards bad habits？

A.Negative.

B.Objective.

C.Passive.

D.Positive.

8.B【解析】观点态度题。文章开篇首先指出一些坏的习惯有时也会对人有益，接下来举例论证其观点。全文只是在客观地叙述、论证，作者并没有表达自己的观点。故选B。