[外语类试卷]专业英语八级模拟试卷346及答案与解析.doc
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1、专业英语八级模拟试卷 346及答案与解析 SECTION A MINI-LECTURE Directions: In this section you sill hear a mini-lecture. You will hear the lecture ONCE ONLY. While listening, take notes on the important points. Your notes will not be marked, but you will need them to complete a gap-filling task after the mini-lecture.
2、 When the lecture is over, you will be given two minutes to check your notes, and another ten minutes to complete the gap-filling task on ANSWER SHEET ONE. Use the blank sheet for note-taking. 0 Borrowing Books 1. To make sure that the book is【 1】 . 【 1】 _ 2. To find out where the book isconsult the
3、 catalogues cards arranged in alphabetical order: 1) in the centerthe authors name (【 2】 comes first) 【 2】 _ 2) the top left hand cornerthe books number the class number (【 3】 areas) 【 3】 _ the author number (exact book shelf) 3) the lower middle partthe title of the book, the edition 4) the bottomt
4、he collation details (【 4】 and maps) 【 4】 _ 3.【 5】 the borrowing slip. 【 5】 _ . Consulting Reference Materials Three types of materials: 1. reference books e.g. dictionaries bibliographieslisting all the【 6】 on a particular subject 【 6】 _ encyclopediasan/a【 7】 of a topic (clear, brief, authoritative
5、)【 7】 _ 2. valuable books e.g. old edition, a single copy, out-of print books 3. professional【 8】 or periodicals 【 8】 _ . General Study Three reasons: 1.【 9】 working environment (spacious, well-lit, heated, free of charge) 【 9】 _ 2. access to reference books and possibility of discussing with other
6、students 3. a chance to make【 10】 with others 【 10】 _ 1 【 1】 2 【 2】 3 【 3】 4 【 4】 5 【 5】 6 【 6】 7 【 7】 8 【 8】 9 【 9】 10 【 10】 SECTION B INTERVIEW Directions: In this section you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. Questions 1 to 5 are based on
7、an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions. Now listen to the interview. 11 Who was pregnant with three triplet boys after giving birth to twin girls? ( A) Matt and Christine. ( B) Edward and Christine. ( C) Matt and Mary. (
8、D) John and Christine. 12 What is the proportion of giving birth to a triplet? ( A) 1 in 1,500,000. ( B) 1 in 15,000,000. ( C) 1 in 150,000,000. ( D) 1 in 1,500,000,000. 13 What are the names of the twin girls? ( A) Alexander and Malia. ( B) Winston and Helly. ( C) Alexander and Helly. ( D) Alexande
9、r and Jones. 14 How old are the triplet boys now? ( A) They are six months old. ( B) They are two weeks old. ( C) They are six weeks old. ( D) They are eight weeks old. 15 How much did the triplet boys weigh when they were born? ( A) They were about 2.5 pounds. ( B) They were about 3.2 pounds. ( C)
10、They were about 3 pounds. ( D) They were about 3.5 pounds. SECTION C NEWS BROADCAST Directions: In this section you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. At the end of each news item, you will be given 10 seconds to answer the questions. 16 The s
11、hootings unfolded in the morning over 2 hours in _. ( A) 1 location ( B) 2 separate locations ( C) 3 separate locations ( D) 4 separate locations 17 According to the news, when did Americas first encounter with a campus massacre occur? ( A) In 1956. ( B) In 1966. ( C) In 1999. ( D) In 2006. 18 Gates
12、 suggested an increase of 10% yearly in U.S. funding for research for _. ( A) the next 5 years ( B) the next 7 years ( C) the next 11 years ( D) the next 17 years 19 Why are 14 teams of experts from the Federal Emergency Management Agency evaluating the damage? ( A) To find out the lost people and a
13、nimals. ( B) To criticize the authoritys poor response. ( C) To assess the federal assistance needed. ( D) To make clear the investment in agriculture. 20 Hurricane Katrina in August of 2005 killed more than 1,800 people _. ( A) in Georgia ( B) in New York ( C) along the Nile ( D) along the Gulf Coa
14、st 20 Scientists have long believed that constructing memories is like playing with neurological toys. Exposed to a barrage of sensations from the outside world, we connect together brain cells to form new patterns of electrical connections that stand for images, smells, touches and sounds. The most
15、 unshakable part of this belief is that the neurons used to build these memory circuits are depletable resource, like petroleum or gold. We are each given a finite number of cells, and the supply gets smaller each year. That is certainly how it feels as memories blur with middle age and it gets hard
16、er and harder to learn new things. Maybe its time for this notion to be forgotten-or at least radically revised. In the past two years, a series of confusing experiments has forced scientific researchers to rethink this and other assumptions about how memory works. The perplexing results of these ex
17、periments remind scientists how much they have to learn about one of the last great mysteries-how the brain keeps a record of our individual passage through life, allowing us to carry the past inside our head. This much seems clear: the traces of memory-or engrams as neuroscientists call them-are fi
18、rst forged deep inside the brain in an area called the hippocampus. This area stores the engrams temporarily until they are transferred somehow (perhaps during sleep) to permanent storage sites throughout the cerebral cortex. This area, located behind the forehead, is often described as the center o
19、f intelligence and perception. Here, as in the hippocampus, the information is thought to reside in the form of neurological scribbles, clusters of connected cells. Until now our old view of brain functionality has been that these patterns ate constructed from the supply of neurons that have been in
20、 place since birth. New memories dont require new neurons-just new ways of connecting the old ones together. Retrieving a memory is a matter of activating one of these circuits, coaxing the original stimulus back to life. The picture appears very sensible. The billions of neurons in a single brain c
21、an be arranged in countless combinations, providing more than enough clusters to record even the richest life. If adult brains were cranking out new neurons as easily ad skin and bone from new cells, it would serve only to scramble memorys delicate ornamental pattern. Studies with adult monkeys in t
22、he mid-1960s seemed to support the belief that the supply of neurons is fixed at birth. Therefore the surprise when Elizabeth Gould and Charles Gross of Princeton University reported last year that the monkeys they studied seemed to be producing thousands of new neurons a day in the hippocampus of t
23、heir brain. Even more surprising, Gould and Gross found evidence that a steady stream of the fresh cells may be continually moving to the cerebral cortex. No one is quite sure what to make of these findings. There had already been hints that spawning of brain cells, a process called neurogenesis, oc
24、curs in animals with more primitive nervous systems. For years, Fernando Nottebohm of Rockefeller University has been showing that canaries create a new batch of neurons every time they learn a song, then slough them off when its time to change tunes. But it was widely assumed that in mammals and es
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- 外语类 试卷 专业 英语 模拟 346 答案 解析 DOC
