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Thousands of years ago people guessed the time of day by watching the sun.
Later，they found it was easier to tell the exact time by looking at the shadows.Thus， the sundial(日晷) was invented.
The sundial proved a useful timepiece  in sunny weather. However，another typc of  timepiece was necessary  for cloudy weather and nigh time.A sand glass was another  common measurer of time.Two glass bottles were connected by a very  small opening.  The top bottle was filled with sand，which dropped slowly into the botton one in a  certain period of time.Hour glasses were widely used then.Three—minute sand glasses  are still used in many homes to time the boiling of eggs.
The real ancestor of modern clocks was the water clock.In China ,an early  water clock was made up of several bowls. Water trickled(滴) from one bowl to another to keep the clock  going. Visitors to the  Beijing Palace Museum can still see the old  water clocks showing the time there.
In the Middle Ages a wateless clock was invented which  worked by means of  weights. To keep  the  weight  falling  at  the  same  speed，a  system  of wheels  was  invented. The pendulum(鐘擺) was  soon  developed  to control  the  speed of the  wheels. Thus the modern form of clock came into being.
9.Which of the following is the correct picturr of a sand glass?
            A.                       B.                       C.                     D.
10.Three minute sand glasses are still used in many homes         .
A.to boil eggs                           B.to measure the time of boiling eggs
C.to hold the boiled eggs                 D.to have eggs boiled
11.If you visit Beijing Palace Museum, you         .
A.will see the old water clocks broken
B.will find the time shown by the old water clocks is wrong
C.can find the old water clocks still telling the time there
D.will find the old water clocks have gone
12.In the Middle Ages the weight falling speed of a clock was kept by .
A.several bowls                        B.a system of wheels
C.a system of pendulum                  D.several springs
9-12 BBCB
9.B 由第二段Two glass bottles were connected by a small opening可知。
10.B 由第二段最后一句可知。
11.C 由第三段最后一句可知。
12.B 由最后一段第二句可知
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科目：高中英語 來源：不詳 題型：閱讀理解

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科目：高中英語 來源：不詳 題型：閱讀理解


E
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Between 65,000 and 35,000 years ago, the planet was much colder than it is now. During that time the temperature also changed a lot, with periods of warming and cooling. Ice melted during the warm periods, which made sea levels rise. Water froze again during the cold periods.
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It now seems that the ice melted at both ends of the earth, rather than just in either northern or southern areas. This surprised the researchers from the University of Bern.
Scientists have long assumed(認為) that most of the ice that melted was in the Northern hemisphere(半球) during the 30,000-year-long ice age. That belief was held because the North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean. It is easier for ice sheets to grow on land. If surrounded by sea, the ice can easily just slip to the ocean instead of building up.
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It is still a mystery(謎) as to what caused the temperature changes that caused the ice to melt.
72. We can learn from the text that _____.
A.we have experienced temperature cycles since they began
B.what caused ice to melt is still unknown
C. the planet was much colder than it is now between 65,000 and 35,000 years ago, during which time temperature hardly changed
D. before the new study, scientists long believed that ice melted just in either northern or southern areas
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A. throws doubts on B. beats down on C. makes it clear D. makes light of
74. The first two paragraphs were written _____.
A. to lead up to the subject that ice melted during the 30,000-year-long ice age
B. to describe what the weather was like during the ice age
C. to compare climate nowadays with that of the ice age
D. to explain what a temperature cycle is
75. Which of the following best shows the relationship between ice, ocean currents and temperatures according to the text?
A. Ice can easily slip into the ocean.
B. Temperature and currents changed as a result of ice melting.
C. Temperature changes lead to ice melting or water freezing, which in turn has an effect on ocean currents and temperature.
D. Ice melted and then froze again due to temperature.

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科目：高中英語 來源：不詳 題型：閱讀理解

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A．the American people get up and go to work at the same time.
B．the American people spend their holidays in the same pattern.
C．the American people buy and eat the same kind of food.
D．the American people have more or less the same income.
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A．The American farmers need more land than before.
B．More and more Americans are interested in farming.
C．It is quite modernized.
D．It is now going backward.
小題3:What is the feature of the U.S. modern industry according to the last paragraph?
A．The production scale and the organizational scale are very big.
B．It is a single economic unit that manufactures the same kind of products.
C．There are more and more competing manufacturers.
D．There are always a variety of products to choose from.
小題4:What does “most of the things” in the second paragraph refer to?
A．food, clothing and houses.
B．Cars, computers and TV sets.
C．Their wealth and income.
D．Land, housing and bank savings.

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