|
f information.
A.Right B.Wrong C.Not mentioned.
参考答案： A 答案解析：
3By referring to computers and other inventions, the author means to say that future achievements in technology will bring about inconceivable dramatic changes.
A.Right B.Wrong C.Not mentioned.
参考答案： A 答案解析：
4People have to change their jobs from time to time.
A.Right B.Wrong C.Not mentioned.
参考答案： A 答案解析：
5People’s traditional concepts about work no longer hold true.
A.Right B.Wrong C.Not mentioned.
参考答案： A 答案解析：
6Most of the job opportunities can now be found in the service industry.
A.Right B.Wrong C.Not mentioned.
参考答案： C 答案解析：
7The service industry is relying more and more on female work force.
A.Right B.Wrong C.Not mentioned.
概括大意与完成句子
（每题1分，共8分;下面的短文后有2项测试任务：（1）第23～26题要求从所给的6个选项中为第2～5段每段选择1个最佳标题；（2）第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。）1、The Atmosphere 1 The atmosphere is a mixture of several gases. There are about ten chemical elements which remain permanently in gaseous form in the atmosphere under all natural conditions. Of these permanent gases, oxygen makes up about 21 percent and nitrogen about 78 percent. Several other gases, such as argon, carbon dioxide, hydrogen, neon, krypton and xenon, comprise the remaining one percent of the volume of the dry air. The amount of water vapor and its variations in amount and distribution is of extraordinary importance in weather changes. Atmospheric gases hold in suspension great quantities of dust, pollen, smoke and other impurities which are always present in considerable, but variable amounts.2 The atmosphere has no definite upper limits but gradually thins until it becomes imperceptible. Until recently it was assumed that the air above the first few miles gradually grew thinner and colder at a constant rate. It was also assumed that upper air had little influence on weather changes. Recently studies of the upper atmosphere, currently being conducted by earth satellites and missile probing, have shown these assumptions to be incorrect. The atmosphere has three well-defined strata.3 The layer of the air next to the earth, which extends upward for about ten miles, is known as the troposphere. On the whole, it makes up about 75 percent of all the weight of the atmosphere, because most of the solar radiation is absorbed by the earth’s surface which warms the air immediately surrounding it. A steady decrease of temperature with the increasing elevation is a mot striking characteristic. The upper layers are colder because of their greater distance from the earth’s surface and rapid radiation of heat into space. The temperatures within the troposphere decrease about 3.5 degrees per 1000 feet increase in altitude. Within the troposphere, winds and air currents distribute heat and moisture. Strong winds, called jet streams are located at the upper levels of the troposphere. These jet streams are both complex and widespread in occurrence. They normally show a wave shaped pattern and move from west to east at velocities of 150 mph, but velocities as 400 mph have been noted. The influences of changing locations and strengths of jet streams upon weather conditions and patterns are no doubt considerable. Current intensive research ma
|
考试问吧
