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Caribbean Islands What would you see if you took a cruise to the Caribbean Islands Palm trees and coconuts (椰子) White beaches and clear, blue ocean Colorful corals (珊瑚) and even more colorful fishes and birds You bet. There are thousands of islands in the Caribbean Sea. They are famous for their warm, tropical climate and great natural beauty. The Caribbean Islands form a chain that separates the Caribbean Sea from the rest of the Atlantic Ocean. Some of the islands were formed by the eruption (爆发) of ancient volcanoes (火山). 1 The Caribbean Islands are known by several names. 2 The explorer Christopher Columbus called the islands the Indies in 1492 because he thought he was near the coast of India. Later, Spain and France called the islands the Antilles. There are four large islands in the Caribbean Sea. 3 These four islands are often called the Greater Antilles. Together, they account for about 90% of the land area of the Caribbean Islands. The rest of the Caribbean Islands are much smaller. Some of these islands are no more than tiny slivers (小片) of exposed coral. You can see why pirates (海盗) such as the famous Blackbeard sailed these waters. 4 The weather of the Caribbean Sea is almost always warm and sunny sandy beaches line the coasts of many islands. This is why millions of tourists visit the islands each year. 5 A. But life oil the Caribbean Islands is not always painful. B. The earliest name used by Europeans is the Indies, later changed to the West Indies. C. Others are low-lying coral islands that gradually rose from the ocean. D. They are Cuba, Puerto Rico, Jamaica, and Hispaniola. E. Many tourists arrive on cruise ships. F. There are countless small islands to bury treasure or hide on.
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Old Man Myths and Realities 1. When does a middle-aged man become an old man Officially, of course, it’s when we reach retirement age. But, as we all know, this is a fairly blunt (生硬的) method of decision making. As life expectancy (预期寿命) increases, retirement planning needs to be changed. This is because being an old man today is very different from what it was a generation or so ago. 2. Sixty-five is the new middle-aged man. These days people are talking about the young-old, that is ages 70 to 75, and those over 75 as the old-old. The young-old frequently continue in good health and maintain strong links with friends and family. The old-old have a much higher chance of poor health and social isolation. 3. Although men are living longer, there are still more old women than old men. This fact alone should arouse interest as to why. Relatively little is actually known about why this is the case or about the experiences of the old man. Sure, we are aware that the old man experiences anxiety, financial problems, loneliness, etc, but that’s really about all we know. 4. It is usually believed that the old man often complains about their health. In fact, most old man think their health is good even though most are diagnosed with at least one chronic illness. The physical health of the old man is strongly affected by their health behavior when they were younger. A. New Definitions of the Old Man B. Changing Concept of the Old Man C. Health of the Old Man D. Happy Old Man and Sad Old Man E. Limited Knowledge of the Old Man’s Experiences F. Contempt for the Old Man A man in his mid-60s is now regarded as ______.
Old Man Myths and Realities 1. When does a middle-aged man become an old man Officially, of course, it’s when we reach retirement age. But, as we all know, this is a fairly blunt (生硬的) method of decision making. As life expectancy (预期寿命) increases, retirement planning needs to be changed. This is because being an old man today is very different from what it was a generation or so ago. 2. Sixty-five is the new middle-aged man. These days people are talking about the young-old, that is ages 70 to 75, and those over 75 as the old-old. The young-old frequently continue in good health and maintain strong links with friends and family. The old-old have a much higher chance of poor health and social isolation. 3. Although men are living longer, there are still more old women than old men. This fact alone should arouse interest as to why. Relatively little is actually known about why this is the case or about the experiences of the old man. Sure, we are aware that the old man experiences anxiety, financial problems, loneliness, etc, but that’s really about all we know. 4. It is usually believed that the old man often complains about their health. In fact, most old man think their health is good even though most are diagnosed with at least one chronic illness. The physical health of the old man is strongly affected by their health behavior when they were younger. A. New Definitions of the Old Man B. Changing Concept of the Old Man C. Health of the Old Man D. Happy Old Man and Sad Old Man E. Limited Knowledge of the Old Man’s Experiences F. Contempt for the Old Man Most old men consider themselves to be ______.
What Is the Coolest Gas in the Universe What is the coldest air temperature ever recorded on the earth Where was this low temperature recorded The coldest recorded temperature on Earth was -91℃, which 1 in Antarctica in 1983. We encounter an interesting situation when we discuss temperatures in 2 temperatures in Earth orbit actually range from about 20℃ to 120℃. The temperature depends upon 3 you are in direct sunlight or shade. Obviously, -120℃ is colder than our body can safely endure. Thank NASA science for well-designed space 4 that protect astronauts from these temperature extremes. The space temperatures just discussed affect only our areal of the solar 5 . Obviously, it is hotter closer to the sun and colder as we travel away from the sun. Astronomers estimate temperatures at Pluto are about -210℃. How cold is the lowest estimated temperature in the entire universe Again, it depends upon your 6 . We are taught it is supposedly 7 to have a temperature below absolute zero, which is -273℃, at which atoms do not move. Two scientists, whose names are Cornell and Wieman, have successfully cooled down a gas to a temperature barely 8 absolute zero. They won the Nobel Prize in Physics in 2001 for their work—not a discovery, in this case. Why is the two scientists’ work so important to science In the 1920s, Satyendra Nath Bose was studying an interesting 9 about special light particles we now call photons. Bose had trouble 10 other scientists to believe his theory, 11 he contacted Albert Einstein. Einstein’s calculations helped him theorize that atoms 12 behave as Bose thought—but only at very cold temperatures. Scientists have also discovered that 13 atoms can help them make the world’s atomic docks even more accurate. These clocks are so accurate today they would only lose one second 14 six million years! Such accuracy will help us travel in space because distance is velocity times time (d=v×t). With the long distances involved in space 15 , we need to know time as accurately as possible to get accurate distance.
Old Man Myths and Realities 1. When does a middle-aged man become an old man Officially, of course, it’s when we reach retirement age. But, as we all know, this is a fairly blunt (生硬的) method of decision making. As life expectancy (预期寿命) increases, retirement planning needs to be changed. This is because being an old man today is very different from what it was a generation or so ago. 2. Sixty-five is the new middle-aged man. These days people are talking about the young-old, that is ages 70 to 75, and those over 75 as the old-old. The young-old frequently continue in good health and maintain strong links with friends and family. The old-old have a much higher chance of poor health and social isolation. 3. Although men are living longer, there are still more old women than old men. This fact alone should arouse interest as to why. Relatively little is actually known about why this is the case or about the experiences of the old man. Sure, we are aware that the old man experiences anxiety, financial problems, loneliness, etc, but that’s really about all we know. 4. It is usually believed that the old man often complains about their health. In fact, most old man think their health is good even though most are diagnosed with at least one chronic illness. The physical health of the old man is strongly affected by their health behavior when they were younger. A. New Definitions of the Old Man B. Changing Concept of the Old Man C. Health of the Old Man D. Happy Old Man and Sad Old Man E. Limited Knowledge of the Old Man’s Experiences F. Contempt for the Old Man More research should be done on the experiences of ______.
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