Which of the following about comets is INCORRECT、

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• 1The core of a comet______.

  A.has no solid form

  B.wanders like a frozen lump when it's far out in space

  C.requires the warmth of the sun to survive

  D.is always followed by a long tail

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• 2We learn from the text that amateur astronomers______.

  A.began their discovery earlier than the professionals

  B.tend to be the leaders in the area of astronomy

  C.have some advantages in discovering new comets

  D.established some theories on how comets come into being

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• 3Halley's comet is mentioned in Paragraph 2______.

  A.to introduce some famous historical events

  B.to explain some traditional beliefs about comets

  C.to demonstrate the harm it has done to man

  D.to show its significance to human history

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• 4At the beginning of the text, the author indicates that______.

  A.comets are the most commonly seen astronomical bodies

  B.comets, meteor fragments and the asteroids are mysterious

  C.not much is known about comets

  D.nothing do we know about comets except guesses

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• 5The passage is most likely a part of

  A.a news article

  B.a preface

  C.a research report

  D.a journalist interview

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• 6Part BDirections:In the following article, some sentences have been removed. For Questions 41-45, choose the most suitable one from the list A-G to fit into each of the numbered blanks. There are two extra choices, which do not fit in any of the blanks.Today no one has ever doubted about television's charm. Since 1920s Britain invented the first television, people have begun to live in a world crowded with soap operas, news magazines and TV advertisements. 41.______However, have we ever tried to find out the magic here、 Why did the television win the competition with paper media and radio in such a short period、 By what kind of contention did TV finally control most of the audiences、 And why does TV become the means the industrial circles scramble for、It is argued that television may not be a form of art, but fifteen thousand years before the primitive people had left urus drawings on Altamira Cave in Spain, which proved that pictures are human ever-lasting pursuit much earlier than letters. 42.______The coming of the 19th century foretold a mass media times and also the break-through in arts because of the rapid development in technology. First by the invention of photography photos showed up before people in a way more substantiated and frequent than ever before; then radio enabled common people to enjoy arts by ears; and finally television integrated advantages of both photos and sounds into a new creation in continuously moving streams. 43.______But television advertisements win people's favor not only because it is an art, but also because it knows people's heart. From the usual mental activity people accept a thing- perception, understanding, recollection, attitude and action, we can find out how a TV ad moves people. 44.______There is only a slowly turning fist on the screen with a voice- over: what has it grasped、 And the fist opened, nothing inside. What it grasps is just your attention. When the targeted audience is willing to watch the ad, the first step is finished and then they should love it. How to gain their identification、 The ad circles have summed up many effective experiences. They often make their ads entertaining and humorous, or exhibit their goods in a smart and artful way, or find out a crafty and clear proposition which sometimes may be: Dawn Detergent-wraps the grease which will not stain your hands (God! All detergent could do this although the audience may not realize. ). As for the links of memorizing, attitude and action, since TV is the most compulsive, penetrating and influential medium, TV ads are still the most efficient. 45.______From cpp to cpm, and from the well-known TV ratings to audience share, TV ads are a stage where every interest groups and individuals rack their brains to keep moving, and it is also one of the business areas with fiercest competition.TV ads, still the main form of today's advertising, will never be a circle short of creation and advance.

  A.First, TV ad always spares no effort to grasp audience's attention, as shown in an ad made by the ad-department of a TV studio to promote itself.

  B.Particularly, with its unparalleled power of product promotion, television has served as the advertiser's beloved son for all these years.

  C.In the later centuries, although great progresses were also made in sculptures, architectures and music, drawing was always the synonym for art.

  D.TV ads, still the main form of today' s advertising, will never be a circle short of creation and advanc

  E.E.Television, originated from art, ultimately surpassed it.

  G.B.Particularly, with its unparalleled power of product promotion, television has served as the advertiser's beloved son for all these years.C.In the later centuries, although great progresses were also made in sculptures, architectures and music, drawing was always the synonym for art.D.TV ads, still the main form of today' s advertising, will never be a circle short of creation and advance.E.Television, originated from art, ultimately surpassed it.F.Today TV ads have become one of the representatives of modern business operation.

  H.A.First, TV ad always spares no effort to grasp audience's attention, as shown in an ad made by the ad-department of a TV studio to promote itself.B.Particularly, with its unparalleled power of product promotion, television has served as the advertiser's beloved son for all these years.C.In the later centuries, although great progresses were also made in sculptures, architectures and music, drawing was always the synonym for art.D.TV ads, still the main form of today' s advertising, will never be a circle short of creation and advance.E.Television, originated from art, ultimately surpassed it.F.Today TV ads have become one of the representatives of modern business operation.G.Television, of the same blood with movie, has also borrowed much from this comparatively mature art form in creating advertisements.A. B. C. D. E. F. G.

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