招聘考试英语部分专题练习（一）
Part I Reading Comprehension
Directions: There are 4 reading passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A., B., C. and D. You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the center.
Questions 1 to 5 are bad on the following passage:
If the salinity of ocean water is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of the small changes are important. There are three basic process that cau a change in oceanic salinity. One of the is the subtraction of water from the ocean by means of evaporation—conversion of liquid water to water vapor. In this manner, the salinity is incread, since the salts stay behind. If this is carried to the extreme, of cour, white crystals of salt would be left behind; this, by the way, is how much of the table salt we u is actually obtained.
The opposite of evaporation is precipitation, such as rain, by which water is added to
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the ocean. Here the ocean is being diluted so that the salinity is decread. This may occur in areas of high rainfall or in coastal regions where rivers flow into the ocean. Thus salinity may be incread by the subtraction of water by evaporation, or decread by the addition of fresh water by precipitation or runoff.
Normally, in tropical regions where the sun is very strong, the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation. Similarly, in coastal regions where rivers dilute the a, salinity is somewhat lower than in other oceanic areas.
A third process by which salinity may be altered is associated with the formation and melting of a ice. When awater is frozen, the dissolved materials are left behind. In this manner, awater directly beneath freshly formed a ice has a higher salinity than it did before the ice appeared. Of cour, when this ice melts, it well tend to decrea the salinity of the surrounding water.
In the Weddell Sea, off Antarctica, the denst water in the oceans is formed as a result of this freezing process, which increas the salinity of cold water. This heavy water sinks and is found in the deeper portions of oceans of the world.
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1. What is the main topic of the passage?
A. Where do we get our table salt?
B. Oceanic salinity in tropical regions
C. Three basic process that alter oceanic salinity
D. Variations of salinity in different parts of the ocean
2. According to the author, the oceanic salinity is usually lower in _____.
A. tropical regions
B. coastal regions
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C. places in which warm currents and cold currents meet
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D. the Antarctica
我们的时光gl零基础绘画培训3. All of the following are process that decrea ocean salinity except _____.
A. precipitation
B. runoff
C. melting
D. evaporation
荷兰菊4. What does the word “subtraction" in the fourth line of the first paragraph mean?
A. reduction
B. influx
C. transformation
D. freezing
5. Which of the following is NOT a result of the formation of ice in oceans?
A. The surrounding water sinks.
B. The water becomes denr.
C. Water salinity decreas.
D. The surrounding water becomes colder.
Questions 6 to 10 are bad on the following passage:
More than a century ago, the relationship between glacial ice and the amount of water in the ocean basins was first en. When the great ice sheet covered vast land areas, the a level was lowered becau the normal return of water from land to the ocean was reduced. As a result, the a level ro as Ice Age glaciers melted allowing the melted waters to flow into the ocean. If all the glacial ice on the surface of the earth today should melt, the a level might ri by more than 150 feet. Shoreline variations are also produced through elevation or depression of the land. During times of glacier formations the great weight of the ice slowly depresd the earth's crust. Removal of the weight through glacier melting allowed the slow return of the crust to its former position. Changes in the Great Ice climates from cool and wet to warm and dry produced climate changes far from the glaciated area. For example, at times of cool-wet glacial climates, levels of inland lakes ro, in contrast to the depression of a level. During the warm-dry interglacial climates, lake levels were lowered. The ancient lake Bonneville, largest of the glacial lakes in Western United States, once cov
ered more than 20,000 square miles. It had a maximum depth of more than 1,000 feet. Great Salt Lake in Utah is the shrunken remnant of this once large lake. Although the first time that early man walked on the earth is uncertain, he is largely a product of the Great Ice Age. Prent information shows that during this time he
evolved rapidly both physically and culturally. His most primitive tools and skeletal remains have been found in some of the oldest deposits contemporary with the Great Ice Age in Africa, Asia and Europe. The are often associated with remains of extinct animals. With the disappearance of the great ice sheets, the Bronze and Iron Age cultures evolved. About this time many animals suited to cooler climates died. Although much remains to be learned, the story of the Great Ice Age is being unfolded through the efforts of specialists in many fields. Recording field obrvation, new theories and methods, and worldwide studies of existing glaciers are bringing a clearer understanding of the Great Ice Age.
6. Which of the following is NOT implied in the passage?
A. Man has a lot more to learn about the Great Ice Age.
金蕊泛流霞B. The art of making tools was instrumental in bringing about the evolution of human brain.
C. Many species were not suited to the warmer climates of the Bronze and Iron Age.
D. The relationship between glacial ice and the amount of water in the ocean basins was not en until more than a hundred years ago.
7. According to the article, which of the following will induce the depression of a level?
