题目内容
On October 12, 1989, some British scientists were working at the computers to look for the information they needed. Suddenly they saw a lot of very bright points crossing the computers screens. At the same time the computers were working much slower. To find out what was happening they stopped their work to check some parts of the computers. To their horror (恐怖), they found out that most of their stored information was got rid of by computer viruses (病毒) ! Clearly all these computers had been infected (感染) by computer viruses.
It is said that the computer viruses were made by a group of young men fond of playing jokes. They all had excellent education. They created the viruses just to show their intelligence . .These kinds of computer viruses are named Jerusalem Viruses. These viruses can stay in computers for a long time. When the time comes they will attack the computers by lowering the functions , damaging their normal programs or even getting rid of all the information. We now come to know that Jerusalem Viruses often attack computers on Friday and that they are spreading to a lot of computers.
Among the countries that were attacked by computer viruses last year are Britain, Australia, Switzerland and the U.S. But till now, how to get rid of the terrible viruses remains a problem.
67. When the viruses attack the computers, the computers will work____ .
A. normally B. slowly C. faster D. well
68. The group of young men created the viruses to ____ .
A. damage the computers B. test their ability
C. tell people that they were intelligent D. play a trick on users of the computers
69. According to the passage, computer viruses seem to ____.
A. have been in nature for years B. stay in any computers
C. be difficult to get rid of at present D. be able to be got rid of in the near future
70. According to the passage, which of the following is TRUE
A. Last year four countries found their computer were infected by viruses.
B. The viruses will come to a new computer after staying in the old one for some time.
C. Scientists are trying to find a way to get rid of the viruses.
D.The Jerusalem Viruses are dangerous to human health.
BCCC
暑假作业暑假快乐练西安出版社系列答案Edith Cavell
was born on December 4, 1865, in England. When she left school, she became a
teacher. Edith soon found that she had a 36 for nursing(护理), so she completed her
training 37 any problem. In 1907, a doctor invited Edith to
open a 38 school for nurses in Belgium(比利时).
In August
1914, Germany invaded Belgium. By then, the training school had become a Red
Cross hospital. It required its nurses to care for injured soldiers from every
country---even 39 soldiers. .
German
forces (军队)
went through Belgium to France. British soldiers were 40 with
the French, trying to 41 the Germans out of France. But they
didn’t 42 . As a result, many British and French soldiers would be
caught. But some of them found their 43 to Edith’s training school.
There, she took care of them and 44 them from the German
forces. Then she heard some 45 people were willing to help
the soldiers escape. Together they organized travels for the soldiers out of
Belgium to Holland, which was a safe country during the whole war.
In august
1915, the German government discovered 46 was happening at
Edith’s training school. Edith was 47 for helping about two
hundred British and French 48 escape. Early on October 12, 1915,
Edith Cavell was 49 . She died for her country, but she
believed that she had only been a nurse trying to do her 50 . History
will remember her for ever.
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