Question

The storage of classified (分类的) research at all 24 labs run by the US Department of Energy was shut down this week after officials decided that the security (安全) problems recently found at the Los Alamos National Laboratory in New Mexico might also exist elsewhere.
Several computer disks went missing at Los Alamos earlier this month, forcing Energy Secretary Spencer Abraham to stop all work at the lab until the problems are found out. As of 26 July, two missing disks had still not been found, and 15 employees had been suspended in connection with the disappearance.
Now all energy labs will stop doing classified research that involves(需要) removable storage devices --- such as computer disks ---  until all the devices are given explanation for and new procedures are in place for monitoring their handling by laboratory employees.
"While we have no evidence that the problems being investigated are present elsewhere, we have a responsibility to take all necessary action to prevent such problems, "Abraham said on 23 July.
The shut-down isn't quite as dramatic（惊人的）as it sounds, experts say. Only two labs will be seriously affected: Sandia National Laboratories in Albuquerque, New Mexico, and Lawrence Livermore National Laboratory in  California. Together with Los Alamos, these two labs conduct the most part of the country's nuclear weapon programmes. At Livermore, 876 employees will be suspended during the storage of some 12,000 items of classified removable material.
At other labs, far fewer people will be affected. "The impact (影响) should be the smallest," says Martha Krebs, former director of the energy department's science office.

1. 1.
   Why was the storage of classified research at all 24 labs shut down?
   1. A.
      Because the security problems might be present elsewhere.
   2. B.
      Because the security problems existed elsewhere.
   3. C.
      Because two missing computer disks had still not be found.
   4. D.
      Because officials decided to stop doing such research.
2. 2.
   How many labs conduct the country's nuclear weapon programmes according to the text?
   1. A.
      About 24.
   2. B.
      Only 2.
   3. C.
      More than 2.
   4. D.
      Over 15.
3. 3.
   The underlined word "suspended"in the second paragraph probably means "______”.
   1. A.
      hung from above
   2. B.
      stopped from holding a position
   3. C.
      doubted
   4. D.
      fired
4. 4.
   It can be inferred from the text that _____.
   1. A.
      the computer disks must have been stolen by terrorists
   2. B.
      the people living in the United States have little security
   3. C.
      the United States is a country whose security is very bad
   4. D.
      the missing of the computer disks caused great fear among Americans

Answer 1

ACBD
1.归纳判断题。由第一段后半部分可知，安全问题在别处“可能存在”，而非肯定存在，故排除B。
2.细节判断题。读第五段Together with Los Alamos, these two labs conduct the most part of...可知这个国家不止两个实验室从事核武器的研究。
3.猜测词义题。因接受调查，故停止了他们的工作。
4.推理判断题。一个实验室的电脑磁盘丢失，其他实验室跟着受牵连接受检查，由此可以推断出此事在美国人中间引起了恐慌。其他三个选项太武断，故排除。