1、大学英语四级模拟试卷 805及答案与解析 一、 Part I Writing (30 minutes) 1 For this part, you are allowed 30 minutes to write about Online Education. You should write at least 120 words following the outline given below in Chinese: 1. 网上学刘已经走进人们的生活 2. 有人网 亡教育具有很多优点，但有人认 为网上教育有很多缺点 3. 你的看法 二、 Part II Reading Comprehensio
2、n (Skimming and Scanning) (15 minutes) Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions attached to the passage. For questions 1-7, mark： Y (for YES) if the statement agrees with the information given in the passage; N (for NO) if the stateme
3、nt contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 1 Sharks Sharks are amazing fish that have been around since long before the dinosaurs existed. They live in waters all over the world, in every ocean, and even in some rivers and
4、lakes. Sharks and Bony Fish Unlike bony fish, sharks have no bones; their skeleton is made of cartilage(软骨 ), which is a tough, fibrous substance, not nearly as hard as bone. Cartilage, a strong fibrous(纤维的 ) substance, is softer than bone; our nose and ears are made of cartilage. Sharks also have n
5、o swim bladder (unlike bony fish). Size There are many different species of sharks that range in size from the size of a persons hand to bigger than a bus. The whale shark is the largest fish in the world; the basking shark is the second largest fish. Fully-grown sharks range in size from 7 inches l
6、ong (the Spined Pygmy shark), up to 50 feet long. Most sharks are intermediate in size, and are about the same size as people, 5 - 7 feet long. Half of the shark species are under 39 inches long. Variety of Sharks There are about 368 different species of sharks, which are divided into 30 families. T
7、hese different families of sharks are very different in the way of look, live, and eat. They have different shapes, sizes, colors, fins, teeth, habitat, diet, personality, methods of reproduction, and other attributes. Some types of shark are very rare and some are quite common. The spiny dogfish sh
8、ark is the most common shark. Body Shapes Sharks have a variety of body shapes. Most sharks have streamlined (流线型的 ), Some sharks have an elongated body shape (e. g. cookiecutter sharks and wobbegongs). Sawsharks have elongated snouts, thresher sharks have a tremendously elongated upper tail fin whi
9、ch they use to stun prey, and hammerheads have extraordinarily wide heads. The goblin shark has a large, pointed protuberance (突出 ) on its head; its purpose is unknown. Teeth The teeth of sharks are also striking. Sharks may have up to 3,000 teeth at one time. Most sharks do not chew their food, but
10、 swallow it down whole or in large pieces. The teeth are arranged in rows; when one tooth is damaged or lost, it is replaced by another. Most sharks have about 5 rows of teeth at any time. The front set is the largest and does most of the work. Diet Sharks vary greatly in their diets, but they are a
11、ll carnivores(食肉动物 ). Some eat fish, other sharks, and marine mammals; some eat shellfish from the ocean floor; and others eat tiny bits of plankton(浮游动物 ) and small animals from the water as they swim with open mouths. They eat huge amounts of these tiny animals and plants. Sharks Attacks When some
12、 sharks (like the Great White or the Gray Reef shark) turn aggressive prior to an attack, they arch their back and throw back their head. They also move their tail more acutely (probably in preparation for a chase). Sharks do not normally attack people, and only about 25 species of sharks are known
13、to attack people. Sharks attack fewer than 100 people each year. Many more people are killed by bees or lightning. The sharks that are the most dangerous to people are the great white shark, the tiger shark, the bull shark, and the oceanic white tip shark. The bull shark is the most frequent attacke
14、r of people as it swims in very shallow waters where people swim and is a very plentiful shark. Some of the other sharks that are known to have attacked people include the gray shark, blue shark, hammerhead shark, mako shark, nurse shark, lemon shark, black tip reef shark, wobbegongs, sandtiger, spi
15、tting sharks, and the porbeagle. Some people believe that sharks mistake people (especially people swimming on surf boards) for seals and sea lions, some of their favorite foods. Occasionally, a group of sharks will attack a food source (for example, a school of fish) in a maniacal fashion. They wil
16、l wildly attack the food and anything in the area, even each other, sometimes wounding or eating fellow sharks. Habitat Sharks live in oceans and seas all over the world, and even in some rivers and lakes, especially in warmer waters. Some sharks live near the surface, some live deep in the water, a
17、nd others live on or near the ocean floor. Pelagic(远洋的 ) sharks (living in the open ocean) include the great white shark, the basking shark, etc. Benthic sharks (living at the ocean floor) include the zebra horn shark, the wobbegongs, and the angelshark, which usually have flattened, camouflaged(伪装的
18、 ) bodies that let them hide in the sea bed. Some sharks even venture many miles up into the fresh water of rivers like the Mississippi in the USA and the Amazon in Brazil. The bull shark (Carcharhinus leucas) sometimes ventures into fresh water. Migration of Sharks Some sharks live in relatively wa
19、rm waters (hammerheads, bull sharks, and tiger sharks). Other sharks, such as the thresher, mako, basking and blue shark, live in temperate water (which is neither hot nor cold). Others, including the dogfish, Greenland, and goblin, live in cool waters. Some sharks stay in the same region in their e
20、ntire lives while others travel across oceans. There are three different types of sharks when it comes to migratory(迁移的 ) patterns: Local sharks, coastal pelagic sharks, and highly pelagic sharks. Local sharks do not migrate, and range only about a hundred miles from their habitat, coastal pelagic s
21、harks can migrate over 1,000 miles, while highly pelagic sharks migrate across oceans. Evolution of Sharks Sharks have existed for over 350 million years. They evolved over 100 million years before the dinosaurs did. This was long before people evolved. Most fossil evidence of early sharks is from f
22、ossilized teeth and a few skin impressions. Cladodonts, primitive sharks, had double- pointed teeth, were up to 6 feet long and lived about 360 million years ago; they ate fish and crustaceans(甲壳类 ). Megalodon was an ancient, meat-eating shark, living between 25 - 1.6 million years ago; it is extinc
23、t. It was over 40 feet long, but this is only an estimate from fossil teeth that have been found. Its teeth resemble those of the great white shark but are almost 3 times larger; these teeth are each the size of a persons hand! 2 What is the main idea of the passage? （ A） The passage tells us the ha
24、bitat and migration of sharks. （ B） The passage tells us why sharks are dangerous to people. （ C） The passage introduces the evolutional process of sharks. （ D） The passage introduces the basic information about sharks. 3 Different from most fishes, sharks body is upheld by _. （ A） bones （ B） cartil
25、age （ C） fiber （ D） skeleton 4 Which of the following description about the size of sharks is TRUE? （ A） Most sharks are about the same size as human beings. （ B） Sharks are the largest fish; most of them are bigger than buses. （ C） Most sharks are much longer than human beings. （ D） Sharks are big
26、animals; most of them are about 50 feet long. 5 Which of the following sharks is the most common sharks? （ A） The whale shark. （ B） The spiny dogfish shark. （ C） The basking shark. （ D） The great white shark. 6 Sharks eat their food by _? （ A） sucking （ B） swallowing （ C） grinding （ D） chewing 7 Whe
27、n sharks quickly move their tail, they probably become _. （ A） offensive （ B） indifferent （ C） interested （ D） friendly 8 Why may the bull sharks attack people frequently? （ A） Because human being is their favorite food. （ B） Because they may wildly attack anything in the area. （ C） Because they swi
28、ms in shallow waters where people swim. （ D） Because they are very aggressive sharks. 9 The sharks that move about in a fixed area about a hundred miles are called _. 10 The earliest dinosaurs lived in the time that was about _ years from today according to the passage. 11 Cladodonts and primitive s
29、harks, which had double-pointed teeth mainly feed on _. Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoke
30、n only once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer. （ A） They are discussing about the class. （ B） They are talking at home. （ C） They are shopping. （ D） They are walking in the street. （
31、A） Because it did not shoot far. （ B） Because it did not bend easily. （ C） Because it was too heavy. （ D） Because its string was short. （ A） A desire to express oneself and display ones wealth. （ B） Individual taste and love for beauty. （ C） Love for beauty and a desire to impress other people. （ D）
32、 Individual taste and a desire to express oneself. （ A） They may be homesick and feel insecure. （ B） They are either cold or very sick. （ C） They may try to attract other peoples attention. （ D） They want to protect themselves from physical injuries. （ A） Green. （ B） Yellow. （ C） Red. （ D） Grey. （ A
33、） Reporter and fashion designer. （ B） Husband and wife. （ C） Shop assistant and customer. （ D） Teacher and student. Section B Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only
34、once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D. （ A） China laid the foundation of its first Women and Children Museum last Sunday. （ B） The project is expected to open in 2007. （ C） The project is expected to be completed in 2008. （ D） The
35、 museum covers 40,000 square meters on Changan Avenue. （ A） To promote gender equality and childhood development. （ B） To fill a gap in Chinas museum construction history. （ C） To promote the growth of economy. （ D） To boost the development of Beijings Changan Avenue. （ A） Showing childrens living c
36、onditions, social status, cultural customs. （ B） Providing a space for childrens communication. （ C） Showing documents, videos, pictures, costumes, toys or handicrafts concerning Chinese children. （ D） Being interactive and provide a space for childrens study and creation. （ A） People are not as cap
37、able as they think. （ B） People can be more capable than they think. （ C） Lack of knowledge leads to failure. （ D） Lack of ability results in lack of determination. （ A） They want to benefit from general English skill. （ B） They dont want to change their professional life. （ C） They want to have an
38、up-to-date knowledge of English. （ D） They know clearly what they want to learn. （ A） Professionals. （ B） College students. （ C） Beginners. （ D） Intermediate learners. （ A） She was greeted warmly by the large audience. （ B） She met a lot of old friends. （ C） She felt excited to find she knew everyon
39、e there. （ D） She felt quite sad that ,she was a stranger there. （ A） The talk was supposed to begin at other time. （ B） His secretary wouldnt come for help. （ C） The guest speaker wouldnt be able to give the talk. （ D） He forgot to bring his opening address paper. （ A） The speaker was an expert on
40、modern literature. （ B） The speaker had to give a speech without preparation. （ C） Tom had to give a speech instead of the guest speaker. （ D） Tom was a very, Careless person. Section C Directions: In this section, you will hear a passage three times. When the passage is read for the first time, you
41、 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
42、, you can either use the exact words you have just heard or write down the 26 ORPHANS whose parents died of AIDS in Henan Province have been given new hope. Last week the【 B1】 _government answered the childrens cries by【 B2】_60 million Yuan to improve schools, orphanages (孤儿院 ) and living conditions
43、. But without the【 B3】 _of Dr Gao Yaojie, these cries may never have been heard. “Im a doctor and its my duty to【 B4】 _diseases and save lives,“ said the 77-year-old grandmother. Gao was named one of the 2003 People of Year on February 20 by CCTV after millions of people took part in an online poll.
44、 But in 1996, when she started to promote AIDS【 B5】 _, using money from her own pocket, her actions were widely【 B6】 _. “Although some of the children were born with HIV, 90 per cent of them were not【 B7】 _,“ Gao said. “But people still【 B8】 _them. Many orphans change their names after finding a fos
45、ter family (领养家庭 ).“ The horror of Henans AIDS problem became known in 1996.【 B9】 _. As a doctor, Gao believed she should help those people. Over the last eight years she has visited over 1,000 AIDS and HIV patients and published thousands of pamphlets on AIDS awareness. With her help, hundreds of o
46、rphans have returned to school or found foster families. 【 B10】 _,“ she explained. Gao is delighted that so many childless families offer to foster orphans. But there is still much that can be done to support these children. “【 B11】 _,“ she said. 27 【 B1】 28 【 B2】 29 【 B3】 30 【 B4】 31 【 B5】 32 【 B6】
47、 33 【 B7】 34 【 B8】 35 【 B9】 36 【 B10】 37 【 B11】 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 choic
48、es. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item with a single line through the center. You may not use any of the words in the bank more than once. 38 The Swedes are among the most charming peoples in Europe. And their charm comes from an app
49、arent 【 S1】 _ in the national character. They are extremely 【 S2】 _ in social relationships: within the family and when meeting friends and business acquaintances, their conduct is governed by strict social patterns. At the same time, they are one of the most intellectually 【 S3】 _ people in the world. They are always open to new ideas. All social occasions in Sweden are 【 S4】 _ by rules and traditions. And these traditions are
