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英語四六級考試

2009年12月英語四級考試模擬訓(xùn)練及答案(二)

2009年12月英語四級考試模擬訓(xùn)練及答案,獨立演練,自測之后再對答案效果好。

  Section C

  Directions: In this section, you will hear a passage three times, when the passage is read for the first time, you should listen carefully for its general idea .When the passage is read for the second time, you are required to fill in the blanks numbered from 36 to 43 with the exact words you have just heard. For blanks numbered from 44 to 46 you are required to fill in the missing information .For these blanks, you can either use the exact words you have just heard or write down the main points in your own words. Finally, when the passage is read for the third time, you should check what you have written.

  注意:此部分試題請在答題卡2上作答。

  Any man-made (36)__________ launched into (37)__________ will move in (38)________ with the same laws that (39)_________ the motions of the planet about the sun, and the moon about the (40)__________.

  Prior to the time of Copernicus, man (41) _________accepted the belief that the earth was the center of the solar system. But efforts to explain the (42) __________ of the planets on this assumption failed. Copernicus pointed out that the difficulties in explaining observations of (43)_________ movement disappeared if one assumed that the sun was the center of the solar system,and that the planets revolved about the sun.

  Years later, Galileo took up the defense of Copernicus theory. With experiments such as the dropping of two objects of different size and weight from the Learn Tower of Pisa, (44)_____________________________.In the early seventeenth century, Johannes Kepler formulated laws that described the motionsof the planets about the sun. (45)________________________________, second, the imaginary line from the center of the sun to the center of a planet(called the radius vector) (46)______________________________.

  Part Ⅳ Reading Comprehension (Reading in Depth) (25 minutes)

  Section A

  Directions:In this section, there is a passage with ten blanks. You are requested to select on word for each black from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the blank is indentified by a letter.

  Please mark the correcsponding letter for each item on Answer Sheet 2 with a single line through the centtre. You may not use any of the words in the bank more than once.

  Questions 47 to 56 are based on the following passage.

  The American patent system, provided for in the Constitution, was designed to encourage the creation and use of new technology. An inventor would describe the invention, both in writing and with drawings, and __47__ the description with a model to a government official. If the invention was judged to be ___48__ and beneficial, the official would give the inventor a patent. The patent meant that for 14 years the inventor owned the new invention. Inventors could ___49__ their ideas to manufacturers or just use them themselves. The government would not ___50__ any other patent for the same idea, and the inventor could ___51__ anyone of using the patented idea with- out paying the owner of the patent for ___52__ to use it.

  A useful patent meant that the inventor could make a lot of money. In exchange for this gover- nmental protection, the government published the patent __53___ , which had to provide enough information so that other people could understand the invention—thus adding to the general__54_technological knowledge. And at the end of the 14 years, anyone could use the invention for__55__.The idea behind the patent system was twofold: it would increase the amount of technology, by providing a way for people to make money out of new ideas, and it would make new technology widely available, by publicizing ideas that might ___56__ be kept as trade secrets.

  A) license I ) specifications

  B) however J ) yield

  C) accuse K) issue

  D) submit L) charge

  E) convenient M) availabe

  F) permission N) otherwise

  G) enable O) original

  H) free

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