【正文】 C. melting D. evaporation4. What does the word “subtraction in the fourth line of the first paragraph mean?A. reduction B. influx C. transformation D. freezing5. Which of the following is NOT a result of the formation of ice in oceans?A. The surrounding water sinks.B. The water bees denser.C. Water salinity decreases.D. The surrounding water bees colder.Questions 6 to 10 are based 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 seen. When the great ice sheet covered vast land areas, the sea level was lowered because the normal return of water from land to the ocean was reduced. As a result, the sea level rose 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 sea level might rise 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 depressed the earth39。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 coolwet glacial climates, levels of inland lakes rose, in contrast to the depression of sea level. During the warmdry interglacial climates, lake levels were lowered. The ancient lake Bonneville, largest of the glacial lakes in Western United States, once covered 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. Present 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. These 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 observation, 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. 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 seen until more than a hundred years ago.7. According to the article, which of the following will induce the depression of sea level?A. formation of great masses of ice sheet on the landB. precipitationC. shoreline variationsD. the advent of warmdry interglacial climates8. Why does the author cite the example of the Great Salt Lake in Utah?A. to show that it is a lake created in the Great Ice AgeB. to show that it once was the largest lake in the United StatesC. to show that it evolved from the Bronze and Iron AgeD. to show that it is what remained of the once large lake Bonneville9. Which of the following can be learned about early man based on the information provided in the passage?A. The exact time of his appearance on the Earth is uncertain.B. He evolved rapidly physically and culturally during the Bronze and Iron Age.C. The ability to make primitive tools distinguished man from other animals.D. Early man lived mainly on animals hunted.10. The best source of information about the Great Ice Age is obtained from _____.A. rock formationsB. fossil remainsC. primitive tools used by early manD. Antarctica39。t enough food to go aroundB. old and sick people are cared for at home until they diedC. people are required to retire at a certain ageD. people who are too weak or ill have to take care of themselves13. What does the word “senile” in the first line of the last paragraph mean?A. advanced in age B. sick C. disabled D. capricious14. What is the author39。s not safe to carry valuables around here. You39。ve got to have some hard evidence to prove it.A. assume B. presume C. believe in D. guess48. _____in the first round of the petition, our team took the earliest flight back.A. Being knocked out B. Having been knocked outC. We were knocked out D. We had been knocked out 49. If the door was not forced open, _____that the burglar must have had a key.A. it follows B. it is followed C. following is D. it will be followed50. The famous football star was _____ with the murder of his exwife and her boyfriend.A. convicted B. charged C. blamed D. accusedPart III Error Correction Directions: This part consists of a short passage. In this passage, there are altogether 10 mistakes, one in each numbered line. You may have to add a word, cross out a word, or change a word. If you add a word, put an insertion mark (∧) in the right place and write the missing word in the blank. If you cross out a word, put a slash (/) in the blank. If you change a word, cross it out and write the correct word in the corresponding blank. Most speakers are surprising to learn that people who speak only one language form a mi