2017职称英语模拟题理工B 第一套
Presently, the FDA allows food to be treated with three types of radiation -- gamma rays, high-energy electrons, and X rays -- and sets limits on doses, depending on the type of food. The principle is that the dose to be used for a certain type of food should not exceed the amount that is sufficient to kill most harmful insects and bacteria present in it. Different types of food, because of their molecular compositions, may require different doses of radiation.
1. According to the passage, killing insects and bacteria present in foods by irradiating is not completely approved by the US government.
A. Right B. Wrong C. Not mentioned
2. There are quite a number of food processors which are interested in producing irritated foods.
A. Right B. Wrong C. Not mentioned
3. Some consumers are doubtful of the safety of irradiated foods and suggest a more severe government inspection be taken.
A. Right B. Wrong C. Not mentioned
4. Some companies foresee the promising future of setting up food processing factories, although they do not see the need now.
A. Right B. Wrong C. Not mentioned
5. It is required that labels placed on irradiated food or nearby bulk items such as vegetables and fruits should indicate irradiated ingredients.
A. Right B. Wrong C. Not mentioned
6. Restaurants can serve irradiated food bought directly from distributors without labeling it.
A. Right B. Wrong C. Not mentioned
7. The passage tells us that FDA approves irradiating food to some extent but irradiated food is not widely accepted.
A. Right B. Wrong C. Not mentioned
第三部分：概括大意与完成句子 （每题1分，共8分）
阅读下面这篇短文，短文后有2项测试任务：（1）1---4 题要求从所给的6个选项中为第2--5 段每段选择1个正确的小标题；（2）第5--8题要求从所给的6个选项中选择4个正确的选项，分别完成每个句子。请将答案涂在答题卡相应的位置上。
The Mir Space Station
The Russian Mir Space Station, which came down in 2001 at last after 15 years of pioneering the concept of long-term human space flight, is remembered for its accomplishments in the human space flight history. It can be credited with many firsts in space.
During Mir's lifetime, Russia spent about US$4.2 billion to build and maintain the station.
The Soviet Union launched Mir, which was designed to last from three to five years, on February 20, 1986, and housed 104 astronauts over 12 years and seven months, most of whom were not Russian. In fact, it became the first international space station by playing host to 62 people from 11 countries. From 1995 through 1998, seven astronauts from the United States took turns living on Mir for up to six months each. They were among the 37 Americans who visited the station during nine stopovers by space shuttles.
The more than 400 million the United States provided Russian for the visits not only kept Mir operating, but also gave the Americans and their partners in the international station project valuable experience in long-term flight and multinational operations.
A debate continues over Mir's contributions to science. During its existence, Mir was the laboratory for 23,000 experiments and carried scientific equipment, estimated to be worth $80 million, from many nations. Experiments on Mir are credited with a range of findings, from the first solid measurement of the ration of heavy helium atoms in space to how to grow wheat in space. But for those favoring human space exploration, Mir showed that people could live and work in space long enough for a trip to Mars. The longest single stay in space is the 437.7 days that Russian astronaut Valery Polyakov spent on Mir from 1994 to 1995. And Sergie Avdeyev accumulated 747.6 days in space in three trips to the space station. The longest American stay was that of Shannon Lucid, who spent 188 days aboard Mir in 1996.
Despite the many firsts Mir accomplished, 1997 was a bad year out of 15 for Mir. In 1997, an oxygen generator caught fire. Later, the main computer system broke down, causing the station to drift several times and there were power failures.
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