68. What activities that seniors would like to do according to the passage? 

A. School work                                                      B. Voting for the film star

C. Singing or dance contests                              D. Senior Show and Senior Prom

67. Why are seniorists unable to do work? 

A. Because they have a "disease".

B. Because they are busy for the university.

C. Because it is illegal for them to work.

D. There's too much for them to learn in high school.

66. Which of the following is the closest in meaning to the underlined sentence in paragrah 1?

A. For American high school seniors, things are quite different.                 

B.It doesn't make difference at the end of the senior year.

C. For American high school seniors, it is the best time of the year.

D.It is the period filled with stress and workload.

65. What topic will be discussed in the following paragraph?   

A. What kind of people should be careful about taking smallpox vaccine.

B. The side-effects of smallpox vaccine.

C. The origin of the flu vaccine.

D. How the smallpox vaccine worked on the boy.          

C

FOR Chinese students the end of their senior year is filled with studying and stress as they prepare for the college entrance exams in June. But for American high school seniors the experience couldn't be more different. The end of senior year is a celebration of their time in high school and involves parties, games and fun.

Senioritis is a commonly used expression. It means seniors have a disease which makes them unable to do work. This starts in April when seniors find out whether they have been accepted to university.

Unwilling to do school work, seniors have plenty of other activities to focus on.

Many schools have a "Senior Show", in which only seniors are allowed to perform. Some seniors sing or dance but many of them perform skits (滑稽短剧), where they make fun of their favorite teachers or their friends. For example, a group of boys may dress up  and  imitate  a group of their girl friends. It is all very light-hearted.

The "Senior Show" is usually a part of Senior Week, which is a week specifically dedicated (专用的) to seniors. During this week, seniors usually get academic or athletic awards they have won over their high school careers. The seniors also vote for one of their male and female classmates who they believe is the best-looking or funniest or most involved, etc. These are then published in the yearbook.

The yearbook is an important part of high school for seniors. It is usually dedicated to them and has all their pictures and some words from them in it. Then seniors go around and get it signed by their friends so they can always remember their time together.

Of course during all of this time, seniors are preparing for the Senior Prom, which is an important moment in American culture. It is the most important dance in a young American's life.

The end of senior year is a truly special and wonderful time for American students. It's something they will remember for the rest of their lives.

64. It is not advisable for everyone to take flu vaccine because               .   

A. there are many kinds of virus

B. the flu vaccine is not as effective as the polio and measles vaccines

C. someone may be allergic to it

D. it has some minor side-effects

63. We can infer from the passage that               .   

A. those who are allergic to eggs should not take flu vaccine

B. all the flu vaccines are not effective for everyone

C. you should go to a doctor if you have a fever or body ache after taking the flu vaccine

D. it is possible that some people might get the flu from the flu shot

62. By saying "It's not a great vaccine, but  it  is  quite  a  good  vaccine",  the  author  means the flu vaccine               .  

A. is not as effective as the polio and measles vaccines

B. is not effective, compared with the polio and measles vaccines

C. does help to make illness less serious

D. is quite good because it works for everyone

61. Which of the following is the proper definition of "vaccine"?   

A. virus used for fighting against disease.

B. Antibodies to fight germs.

C. Formula to fight against disease.

D. Substance containing virus used for protecting people against diseases.

60. What is the result of Justin Halberda's tests?    

A. Students who did well in the tests also did well in math exams.

B. One cannot be successful in math if he has a well number sense.

C. One who has a strong number sense can not do math well.

D. One should do a lot of math homework if he wants to have a number sense.                

B

DID you get a flu shot this year? For the first time, the Centers for Disease Control and Prevention in the US is recommending that all children aged from 6 months to 18 years receive the flu vaccine.

Vaccines battle diseases caused by bacteria and viruses. A weakened form of the germ (微生物) is introduced into the body. The body makes special substances called antibodies to fight the germs. If the actual germs were to attack, the antibodies would fight it.

       Because there are many kinds of flu viruses, scientists must create a new vaccine  formula (方程式) each year. Researchers must make a prediction.

It is like forecasting the weather. Sometimes they are right on, and sometimes they are off. But even when the vaccine does not closely match circulating flu types, it can make the illness less serious.

 "The flu vaccine is not as effective as the polio (小儿麻痹症) vaccine or the measles vaccine," says Dr William Schaffner of Vanderbilt University School of Medicine. "It's not a great vaccine, but it is quite a good vaccine."

But a flu vaccine doesn't work for everyone. There are certain people who should be careful about taking it.

Because the vaccine is produced in eggs, those who are allergic (过敏的) to eggs should not take it. If you have a fever, you should wait until you recover.

Some people are afraid that they might get the flu from the flu shot. Scientists say that it is not possible, because the viruses in the flu shot are inactivated. But some minor side effects such as low-grade fever and body ache could occur. If they do, they begin soon after the shot and usually last only one to two days.

Did you know?

Smallpox was the first disease people tried to prevent by putting a virus into a healthy person. In 1796, English scientist Edward Jenner placed some infected (被感染的) material under a boy's skin.

59. According to the passage, the most important thing to learn math well is that               .  

A. one should have an inborn number sense

B. one should practice a lot

C. one should do a lot of tests

D. one should do a lot of counting