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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Global sea level has been rising over the past century, and the rate has increased in recent decades. In 2014, global sea level was 2.6 inches above the 1993 average, the highest annual average in the satellite record (1993 – present). Sea level continues to rise at a rate of about one eighth of an inch per year.
Higher sea levels mean that deadly and destructive storm surges push farther inland than they once did, which also means more frequent nuisance flooding. Disruptive and expensive, nuisance flooding is estimated to be from 300 percent to 900 percent more frequent within U.S. coastal communities than it was just 50 years ago.
The two major causes of global sea level rise are thermal expansion caused by warming of the ocean since water expands as it warms and increased melting of land based ice, such as glaciers and ice sheets. The oceans are absorbing more than 90 percent of the increased atmospheric heat associated with emissions from human activity.
With continued ocean and atmospheric warming, sea levels will likely rise for many centuries at rates higher than those of the current century. In the United States, almost 40 percent of the population lives in relatively high population density coastal areas, where sea level plays a part in flooding, shoreline erosion, and hazards from storms. Globally, eight of the world’s 10 largest cities are near a coast, according to the U.N. Atlas of the Oceans.
Question 1: The passage is mainly about ______. A. an increasing rate of sea level rise B. sea level and emissions from human activity C. sea level and its effects on the world’s largest cities D. sea level within U.S. coastal communities Question 2: The word “frequent” in paragraph 1 is closest in meaning to ______. A. severe B. regular C. particular D. widespread.
Question 3: The word “they” in paragraph 2 refers to ______. A. floods B. sea levels C. coastal communities D. storm surges Question 4: According to the passage, the number of people who live in relatively high population density coastal areas in the United States takes up ______. A. nearly one fifth of the population B. over three fourths of the population C. nearly two fifths of the population D. approximately two thirds of the population.
Question 5: The following factors contribute to global sea level rise EXCEPT ______. A. population density B. ice melting C. human activity D. thermal expansion Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. Question 6: A. thickness B. something C. father D. methane Question 7: A. mind B. time C. night D. skill.
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