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If you are travelling in a train, the things (Example: (0) ) seem to be (41) backwards. But this is not really true. It is the train that is moving. It is like the case (42) the earth and the sun. The sun seems (43) in the east, move across the sky, and set in the (44) . In other words, the sun seems to travel round the earth. However, (45) not really true. It is the earth that is turning on (46) own axis (轴) . The turning of the earth on its own axis is what makes the change (47) day to night. The earth also travels round the sun on an unchanging path (路径). As well as the earth, (48) other planets(行星) of (49) sizes. These are known as the solar system. The planet nearest the sun is Mercury, and the planet (50) from the sun is Pluto.

A. rose
B. rising
C. to rise

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The Browns and the Smiths are neighbours. Mr. Brown’s name is Allen. But when his neighbours talk about him, they call him "Mr. Going-to-do." Do you know why Mr. Brown always says he is going to do something, but nothing happens after that. Every Saturday Mr. Brown goes to the Smiths’ back door and talks to Mr. Smith, "I’m going to clean my house today. "he says, or "I’m going to wash my car tomorrow." or "The trees in front of my house are too big, I’m going to cut them down next week." Mr. Smith usually says, "Are you, Allen" He knows his neighbour is not going to clean his house, or wash his car, or cut down any trees. Then he says, "Well, excuse me, Allen, I’m going to do some work in the house." And so he does. Mr. and Mrs Smith often say to their children, "Are you going to do something Then do it! Don’t be another Mr. Going-to-do!\ "Mr. Going-to-do" ______.

A. always says he is going to do something, but he never does it
B. always talks as much as he does
C. always talks a little but does a lot

Henry Ford, the famous U.S. inventor and car manufacturer, once said, "The business of America is business." By this he meant that the U.S. way of life is based on the values of the business world. Few would argue with Ford’’s statement. A brief glimpse at a daily newspaper vividly shows how much people in the United States think about business. For example, nearly every newspaper has a business section, in which the deals and projects, finances and management, stock prices and labor problems of corporations are reported daily. In addition, business news can appear in every other section. Most national news has an important financial aspect to it. Welfare, foreign aid, the federal budget, and the policies of the Federal Reserve Bank are all heavily affected by business. Moreover, business news appears in some of the unlikeliest places. The world of arts and entertainment is often referred to as "the entertainment industry" or "show business." The positive side of Henry Ford’’s statement can be seen in the prosperity that business has brought to U. S. life. One of the most important reasons so many people from all over the world come to live in the United States is the dream of a better job. Jobs are produced in abundance (大题) because the U.S. economic system is driven by competition. People believe that this system creates more wealth, more jobs, and a materially better way of life. The negative side of Henry Ford’’s statement, however, can be seen when the word business is taken to mean big business. And the term big business -- referring to the biggest companies, is seen in opposition to labor. Throughout U.S. history working people have had to fight hard for higher wages, better working conditions, and the right to form unions. Today, many of the old labor disputes are over, but there is still some employee anxiety. Downsizing -- the laying off of thousands of workers to keep expenses low and profits high -- creates feelings of insecurity for many. The United States is a typical country________.

A. which encourages free trade at home and abroad
B. where people’’s chief concern is how to make money
C. where all businesses are managed scientifically
D. which normally works according to the federal budget

某独立柱基底板配筋间距为100mm,在交叉点可相隔交错绑扎,但铁丝应扣成八字形。( )

A. 对
B. 错

Why can’t Tom come

A. He is ill.
B. He has to study.
C. He has to work.

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