Question

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 £¨Î¢ÉúÎ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£¨·½³Ìʽ£© 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£¨Ð¡¶ùÂé±ÔÖ¢£©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£¨¹ýÃôµÄ£©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 material under a boy's skin£®

1£®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

2£®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

3£®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

4£®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£®

Answer 1

CBCD