题目内容：

We chat with our colleagues all the time when we have lunch, gossip in the tearoom, or leave work together. Sharing your personal life brings you closer to your coworkers and builds trust within your team. But revealing too much about yourself to colleagues, managers or human resources staff can cause difficulties and even endanger your work.

It's important to keep the right balance between getting along with colleagues and maintaining your privacy. “Communication in the office is tricky and complicated. You can neither spread chatter, nor be too silent and shut yourself off from others，” said Yang Yudan, deputy HR director at P&G.

According to her, there are several safe topics to talk about with colleagues during the break, such as the weather or movies. Women like to talk about makeup and clothing, while men are fond of sports and online games. But discussing your private life, such as relationship, habits or health conditions, is a potential minefield.

Liang Kun, 26, had to resign from his job at a trading company in Guangzhou last week after discussing his income with colleagues during a lunch break. “I didn't realize it was such a serious issue until a senior member of staff went to find the boss, asking why I got a higher salary than her，” said Liang. “Then our HR told me that according to the employee handbook it is forbidden to talk about salary in the office.” HR expert Yang also reminds us that paychecks are your own business. It is unwise to share this information with others, no matter how close you are.

To summarize, Yang advises office workers to be more aware of the image they project when talking to colleagues, “When you share your personal life, it will be recorded on your invisible resume and may slow down your career progressing.”

1.The author quoted Yang Yudan in the text to ________.

A．show his admiration for her

B．make an argument with her

C．support his own viewpoint

D．build up his fame

2.What can be inferred from the fact that Liang Kun had to resign his job according to the text?

A．It was unwise for him to share information with others.

B．He broke the rules made by the company.

C．He was such an honest person that he told the truth.

D．He treated his colleagues as family members.

3.What is the author's purpose in writing the text?

A．To draw people's attention to their behaviors in public.

B．To advise office workers to be aware of the image they project.

C．To make you believe that communication in the office is complicated.

D．To warn you to be careful of invisible trouble while talking about your privacy to colleagues.

4.Which would be the best title for the text?

A．At Work, Keep It to Yourself

B．Keep the Right Balance

C．Share Your Personal Life with Others

D．Safe Topics to Talk about