1．A good title for this passage is________ .

　A. Ellen Logan at the Holiday Inn

　B. American Holiday Inn

　C. A Special Holiday Inn Hotel in Manhattan

　D. How to Deal with People

20．Which is the least possible if a fraud has happened to you?

　　　　 A．You may have debts in your credit card.

　　　　 B．You may find charges on your bills unauthorized.

　　　　 C．A new credit card may be opened in your name.

　　　　 D．The fraud departments can find out the imposter right away.

19．What is the most difficult thing for people to deal with identity frauds?

　　　　 A．No measures can work on the billing cycle.　 B．There is no strict law for this kind of behaviors.

　　　　 C．It might be a long time before you realize that. D．The FTC does nothing except for three suggestions.

18．What should you do first when you find your identity is stolen?

　　　　 A．Inform creditors not to open any new accounts in your name without your permission.

　　　　 B．Ask for copies of your credit reports and make sure no other frauds have been made.

　　　　 C．Keep ordering new copies to check what you have already changed and corrected.

　　　　 D．Always lock your ID card in your cupboard in case it should be stolen.

17．What’s the subject discussed in the text?

A.What you should do if your credit card is stolen.　

B．What you should do if your identity is stolen.

C.What an imposter always does to make money.　

　　 D．What the Federal Trade Commission is about.

16．What would be the best title for this Text?

　　　　 A．Tea Is Better Than Coffee.　　　　　　　　　　　　　 B．Tea May Help Fight Infection

　　　　 C．Tea Can Help Prevent Cancer.　　　　　　　　　　 D．Our Body Needs Tea

E

　　　　 Maybe you never opened that account, but someone else did --someone who used your name and personal information to commit fraud(造假). When an imposter uses your name, your credit card number, or some other piece of your personal information for their own purpose –in short, when someone takes your personal information without your knowledge –it’s a crime, pure and simple.

　　　　 The biggest problem is that you may not know your identity(身份)has been stolen until you notice that something’s wrong: you may get bills for a credit card account you never opened, your credit report may include debts you never knew you had, a billing cycle may pass without your receiving a statement, or you may see charges on your bills that you didn’t sign for, and even don’t know anything about.

　　　　 If someone has stolen your identity, the Federal Trade Commission (FTC) suggests that you take three actions immediately.

　　　　 First, contact the fraud departments of each of the three major credit offices. Tell them to flag your file with a fraud alert(警告)including a statement that creditors should get your permission before opening any new accounts in your name.

　　　　 Then, ask the credit offices for copies of your credit reports. Credit offices must give you a free copy of your report if it is not correct because of fraud. Review your reports carefully to make sure no additional fraudulent accounts have been opened in your name or unauthorized(侵权的)changes made to your present accounts. In a few months, order new copies of your reports to check your corrections and changes, and to make sure no new fraudulent activity has occurred.

15．According to Dr Bukowski, ________.

　　　　 A．the findings of the study have already proved to be true

　　　　 B．he has taken some amino acid L-theanine from tea and made a drug with it

　　　　 C．further study is needed to prove the findings true

　　　　 D．he is not sure whether tea can help prevent heart disease and cancer

14．Tea may help strengthen the body’s defense system because it helps ________.

A．the body to produce more interferon　　 B．the body to produce more gamma delta T cells

C．to add some bacteria to the blood cells　 D．to mix antigens with some of the cells in the body

13．We may know from the text that ________ can be found in different kinds of tea.

　　　　 A．Gamma delta T cells　 B．L-theanine　 C．interferon　　　　　　 D．bacteria

12．If you are a biology student at BU, what is most probably your first choice after you finish reading the webpage?

　　　　 A．Watch the video of the Discussion.　　　　　　

B．Buy the magazine Bostonia.

　　　　 C．Watch the video of the Conference.　　　　　

D．Book tickets for the Reunion Weekend.

D

American researchers say drinking tea may help strengthen the body’s defense system against infection(感染). Doctors at Brigham and Women’s Hospital in Boston, Massachusetts, did the study. The team studied a chemical found in black, green, oolong and pekoe tea. This chemical is an amino acid(氨基酸)called L-theanine. The scientists say it may increase the strength of gamma delta T cells. That’s the letter T, not the drink. Gamma delta T cells are part of the body’s defenses.

First, the researchers mixed some of these cells with antigens(抗原)found in the amino acid. Antigens help the body react to infection. Then the scientists added some bacteria(细菌). Within twenty-four hours, the cells produced a lot of interferon, a substance that fights infection. Cells not mixed with the antigens did not produce interferon.

In the second part of the study, eleven people drank five to six cups of black tea every day. Ten other people drank the same amount of instant coffee. That is dried coffee mixed with hot water.

Two weeks later, and again two weeks after that, the researchers tested the blood of all twenty-one people. They also looked at what happened when they added bacteria to the blood　 cells. They found that the tea drinkers produced five times more interferon after they started drinking tea. The coffee drinkers did not produce interferon.

Doctor Jack Bukowski led the study. He says the antigens added to the gamma delta T cells were responsible for the increased reaction to the bacteria. He says the study also showed that the cells were able to remember the bacteria and fight them again the next time.

Earlier research already has found that tea can help prevent heart disease and cancer. Doctor Bukowski says the new study must be repeated with more people. If the findings prove to be true, he says, then tea drinking might also help protect against bacterial infections. He says the amino acid L-theanine could be removed from tea and used as a drug to strengthen the body’s defenses.