文都：2008年12月英語四級全真預(yù)測試卷(六)

　　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 you own words. Finally, when the passage is read for the third time, you should check what you have written.

　　Many people believe sharks are dangerous and will always try to hurt or even kill humans. In fact, 94 (36) of the world’s 400 species are (37) to human. A shark exhibition at the National Aquarium in Baltimore, US (38) this. Visitors can touch young sharks, see their eggs develop and watch a (39) different species swim (40) around a huge tank.

　　Most people fail to realize that shark (41) don’t happen very often. Humans are more likely to be killed by (42) than by a shark. “People fear what they don’t know,” said Nancy Hotchkess, an organizer of the exhibition, which runs until (43) . “Sharks have been around for 400 million years and play an important role in the ocean’s food chain. (44).”

　　A shocking 100 million sharks are killed every year around the world by humans. (45). Thousands of sharks are hunted in Asia for special food, such as shark fin soup. And many others get caught in nets, while fishermen are hunting other fish. (46) . It is a worrying situation and some areas have put measures in place to protect these special fish.

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

　　Section A

　　Directions:In this section, there is a passage with ten blanks. You are required to select one word for each blank 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 bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.

　　Questions 47 to 56 are based on the following passage.

　　Space is a dangerous place, not only because of meteors(流星) but also because of rays from the sun and other stars. The atmosphere again acts 47 our protective blanket on earth. Light gets through, and this is essential for plants to make the food which we 48 . Heat, too, makes our environments tolerable and some ultraviolet rays(紫外線的) penetrate the 49 .Cosmic(宇宙的) rays of various kinds come 50 the air from outer space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation; 51 their spacesuits or the walls of their spacecraft, if they are inside, 52 prevent a lot of radiation damage. Radiation is the greatest known danger to explorers in 53 . Doses of radiation are measured in units called “rems (雷姆)”. We all 54 radiation here on earth from the sun, from cosmic rays and from radioactive minerals. The “normal” dose of radiation that we receive each year is about two millirems; it 55 according to where you live, and this is a very rough estimate. Scientists have reason to think that a man can put up with far more radiation 56 without being damaged; the figure of 60 rems has been agreed.

　　[A]with[B]as[C]atmosphere[D]space

　　[E]shift[F]eat[G]earth[H]than

　　[I]but[J]varies[K]receive[L]do

　　[M]converts[N]use[O]through

　　Section B

　　Directions:There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked[A],[B],[C]and[D].You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.

　　Passage One

　　Questions 57 to 61 are based on the following passage.

　　As regards social conventions, we must say a word about the well�瞜nown English class system. This is an embarrassing subject for English people, and one they tend to be ashamed of, though during the present century class-consciousness has grown less and less, and the class system less rigid. But it still exists below the surface. Broadly speaking, it means there are two classes, the “middle class” and the “working class”. (We shall ignore for a moment the old “upper class”, including the hereditary aristocracy, since it is extremely small in numbers; but some of its members have the right to sit in the House of Lords, and some newspapers take a surprising interest in their private life.) The middle class consists chiefly of well�瞭o�瞕o businessmen and professional people of all kinds. The working class consists chiefly of manual and unskilled workers.

　　The most obvious difference between them is in their accent. Middle�瞔lass people use slightly varying kinds of “received pronunciation” which is the kind of English spoken by BBC announcers and taught to overseas pupils. Typical working�瞔lass people speak in many different local accents which are generally felt to be rather ugly and uneducated. One of the biggest barriers of social equality in England is the two�瞔lass education system. To have been to a so�瞔alled “public school” immediately marks you out as one of the middle class. The middle classes tend to live a more formal life than working�瞔lass people, and are usually more cultured. Their midday meal is “l(fā)unch” and they have a rather formal evening meal called “dinner”, whereas the working man’s dinner, if his working hours permit, is at midday, and his smaller, late�瞖vening meal is called supper.