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It doesn"t take a rocket scientist long time to figure out that there are better things you could do for your health than take deep breaths on a smoggy(烟雾的)day. A growing pile of research suggests that even relatively low levels of air pollution may be more harmful than previously realized, to both heart and lungs(肺). The latest articles from researchers, published this week in the New England Journal of Medicine, focuses on how particulate (微粒) matter from air pollution affects lung function.
“The effect of low levels of particulate pollution found in many urban areas is not unlike secondhand smoke,” experts say. Studies show that short-term effects from particulates include diminished(减少) lung function, coughing, wheezing, and heart attacks. Long-term exposure can also slow normal lung growth, damage lung airways, and increase the risk of dying from lung cancer.
Certain populations, such as the very old and the very young, are the most vulnerable to air pollution. However, even the most alarming studies conducted in the most polluted areas suggest that the average person"s individual risk from exposure (暴露) is very slight. Relative risk numbers often seem more frightening than they actually are. For example, an earlier study published in the New England Journal of Medicine found that short-term exposure to traffic fumes tripled ( 成为3倍) the risk of heart attacks in heart-attack survivors.
Short of moving to the countryside or at least away from busy roads, shielding yourself from the effects of air pollution is not easy. Masks won"t work. “At the very least,” suggests Murray Mittleman, a cardiologist at Harvard University, “people who regularly exercise outdoors near highways may want to consider remapping their route.”
66. What does the underlined sentence in the first paragraph mean?
A. Rocket scientists are making researches on people’s health.
B. It"s obvious that air pollution has a bad effect on people’s health.
C. People aren"t sure whether taking deep breaths on a smoggy day is bad.
D. People often have a hard time when taking deep breaths on a smoggy day.
67. The word "vulnerable" in Paragraph 3 probably means _________.
A. easy to be hurt            B. easy to be protected
C. easy to be used            D. easy to be saved
68. The main idea of Paragraph 3  is _________.
A. that even small risk from particulate causes big problems
B. that air pollution often leads to heart attack
C. who are most likely to get affected
D. that we shouldn"t worry about the average low risk
69. In order to be healthier, you"d better _________.
A. take deep breaths         B. wear a mask   
C. live in a countryside       D. clean the busy road
70. The passage is written in a(n) _________ tone.
A. subjective         B. humorous     C. doubtful      D. objective
答案
66----70 BAACD
解析

核心考点
试题【It doesn"t take a rocket scientist long time to figure out that there are better】;主要考察你对题材分类等知识点的理解。[详细]
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完形填空(共20小题;满分30分) 注意:15分钟内完成
Most people in school like Gloria. So when she 36 sick, some boys 37 to visit her. But none of them wanted to 38 any money on a gift to bring along. Then Willie said, "We can 39 some flowers from a 40. Gloria will not know 41 they come from, and the dead man will not 42 them. "
Everybody was afraid 43 Willie. So he went alone and found some beautiful flowers. Then they went to Gloria"s 44 , and the boys acted 45 the flowers were from all of them, but 46 did not mind. After their visit, Willie 47 the other boys, "It"s a good thing that I was not afraid. Gloria liked the flowers. "
The other boys laughed. Gloria 48 not have liked the 49 if she had known they had 50 from a grave (坟墓).
That night, Willie was reading a book 51 his mother came into his room. "There"s a man 52 asking for you," she asked. "He said that you didn"t 53 the flowers. "
"What does he look like?" Willie asked.
"That"s hard to say," Willie"s mother answered. "He is all 54 with mud. "(泥巴)
Willie, all of a sudden, turned  55 .
36. A. got   B. fall            C. made         D. took
37. A. thought   B. asked         C. planned       D. suggested
38. A. keep B. cost           C. take            D. spend
39. A. steal B. rob            C. buy           D. beg
40. A. shop        B. store     C. street       D. grave
41. A. how        B. where     C. when         D. why
42. A. miss        B. lose     C. hate           D. love
43. A. beside      B. besides   C. including      D. except
44.A. room        B. house     C. school        D. library
45. A. as if        B .if          C. that          D. as
46. A. Gloria      B. some       C. Willie         D. nobody
47. A. told      B. asked           C. said to        D. explained
48. A. must       B. can         C. could         D. would
49. A. boys       B. flowers      C. secret        D. news
50. A. stolen      B. robbed      C. taken        D. come
51. A. as         B. when        C. while        D. suddenly
52. A. inside      B. outside       C. still               D. also
53. A. ask for     B. pay          C. pay off               D. pay for
54. A, painted          B. dressed      C. wrapped         D. covered
55. A. sad        B. red          C. pale       D. glad
题型:不详难度:| 查看答案
Four hundred and three babies are crying loudly. Do you know how to make them quiet in 41 seconds? There is an amazing new product on sale in Japan which does exactly this. It is an LP (a long-playing record) of sounds from inside a mother"s body, which a hospital doctor recorded. In tests with the record she played the LP to 403 crying babies. After 41 seconds none of the babies was crying and 161 of them were sleeping.
The record began as an experiment by Professor Hajime Minooka of the Nippon Medical University near Tokyo. He was looking for something natural that helps new-born babies go to sleep. The sound of the mother"s heart-beat and other body sounds are the things the babies heard inside their mothers. They feel safe and happy when they hear these sounds again. And they go to sleep.
Hospitals in Osaka and Tokyo are using the LP. 10,000 young couples are using it too. Toshiba Music Company who make and sell the records are very happy. One and a half million couples(夫妇) marry every year in Japan. Many will have babies, so the LP will definitely(明确的、干脆地) be a hit!
60.The experiment was made on ___ babies.
A. 10,000      B. 564        C. 403         D. 161
61. What is TRUE according to the text?
A. About 55% of the crying babies fall asleep after 41 seconds hearing the LP.
B. The LP sounds were first recorded by Professor Hajime Minooka.
C. The LP is produced and sold by Toshiba Music Company.
D. One million and a half babies are born in Japan every year.
62. Babies feel ___ when they hear these LP sounds.
A. the sounds be their mothers" voices
B. as if they were inside their mothers
C. the music natural and soft
D. themselves sleeping together with their mothers
63 "Many will have babies, so the LP will definitely be a hit!" The word "hit" means"____".
A. popularity     B. amazement      C. strike        D. experiment
题型:不详难度:| 查看答案
There’re five people at our table, including myself. I’ve already learnt a great deal about them in the short time we’ve been at sea, although we rarely meet except at meal times.
First of all, there’s Dr Stone. He’s a man of about sixty five, with gray hair and a friendly face. He gave up his work a short while ago and is now traveling round the world before he retires to some quiet country village. As a young man, he served for many years as a doctor in the army and visited many countries. He’s told us a lot about the city to which we are going.
Then there’s “Grandmother”. I call her that because her name escapes me. In spite of being a grandmother, she looks rather young, not more than fifty, she’s on her way to visit a daughter who went to Australia some years ago. Naturally she is very excited at the thought of seeing her again, and her three grandchildren, whom she has never seen.
Then there’s a man I don’t care for very much, an engineer by the name of Barlow. He has been on leave in England and is now returning to his work in Singapore.
The other person who sits at our table is Mrs. Hunt. I’ve found out hardly anything about her. She’s extremely quiet and rarely talks, except to consult(咨询)the doctor about children’s various illness. She’s on her way to join her husband in India.
64. What can we know about Mr. Stone?
A. He is a doctor in the army now.
B. He is going to give up his work.
C. He knows a lot about the city the author is going to.
D. He has been retired for many years.
65. The writer calls the second person “Grandmother” because_______.
A. she looks old                             B. She has three daughters
C. he respects her                                D. he can’t think of her name
66. Which of the following is TRUE?
A. Dr Stone lives in a quiet village now.       B. “Grandmother” is an Australian.
C. Barlow works in Singapore                      D. Mrs Hunt is a woman of many words.
题型:不详难度:| 查看答案

(B)
People have wondered for a long time how their personalities and behaviors are formed.It is not easy to explain why one person is intelligent and another is not, or why one is cooperative and another is competitive.
Social scientists are, of course, extremely interested in these types of questions.They want to explain why we possess certain characteristics and exhibit certain behaviors.There are no clear answers yet, but two distinct schools of thought on the matter have developed.As one might expect, the two approaches are very different from one another, and there is a great deal of debate between proponents of each theory.The controversy is often referred to as “nature/nurture”.
Those who support the “nature” side of the conflict believe that our personalities and behavior patterns are largely determined by biological and genetic factors.That our environment has little, if anything, to do with our abilities, characteristics, and behavior is central to this theory.Taken to an extreme, this theory maintains that our behavior is predetermined to such a degree that we are almost completely governed by our instincts.
Proponents of the “nurture” theory, or, as they are often called, behaviorists, claimed that our environment is more important than our biologically based instincts in determining how we will act.A behaviorist, B.F.Skinner, sees humans as beings whose behavior is almost completely shaped by their surroundings.The behaviorists’ view of the human being is quite mechanistic; they maintain that, like machines, humans’ respond to environmental stimuli as the basis of their behavior.
Either of these theories cannot yet fully explain human behavior.In fact, it is quite likely that the key to our behavior lies somewhere between these two extremes.That the controversy will continue for a long time is certain.
69.Which of the following statements would the supporters of the “nature” theory agree with?
A.A person’s instincts have little effect on his actions.
B.Environment is important in determining a person’s behavior and personality.
C.Biological reasons have a strong influence on how we act.
D.The behaviorists’ view correctly explains how we act.
70.Concerning the nature/nurture controversy, the writer of this article____________.
A.supports the nature theory
B.supports the nurture theory
C.believes both are completely wrong
D.thinks that the correct explanation of human behavior will take ideas from both theories.
71.In the United States, Black people often score below White people on intelligence tests.With this in mind, which of the following statements is NOT true?
A.Nature proponents would say that Whites are genetically superior to Blacks.
B.Supporters of the nature theory would say that Whites score well because they have a superior environment.
C.Behaviorists would say that Blacks often lack the educational and environmental advantages that Whites enjoy.
D.Nurture proponents would disagree that Blacks are biologically inferior to Whites.
题型:不详难度:| 查看答案

D
Both warm-blooded and cold-blooded desert animals have ways to escape the desert heat. Warm-blooded desert animals, such as rats and mice, rest during the day, often staying in cool underground burrows. At night they search for food. Animals that are out during the day, such as cold-blooded lizards and snakes, are active only for short periods. As their body temperature rises, these reptiles move into the shade in order to cool down. In the early evening, when the sun grows weaker, the reptiles become more active and begin their search for food again.
Getting enough water to survive is a major problem for all desert animals. Some desert animals, such as the kangaroo rat and the related jerboa, get water only from the food that they eat. Because these animals eat mainly dry seeds, they must survive on a tiny amount of water.
Most deserts have only a small number of frogs and toads because these animals must be near water to survive. Yet even these creatures have adapted to desert conditions. When small amounts of water collect in temporary streams, the desert-living frogs and toads become active. After a rainfall, they lay their eggs. The eggs grow into tadpoles in a few days and into adults in just four weeks. When the puddles dry up, the adult frogs or toads dig into the ground. Their metabolism(新陈代谢) slows, and they stay beneath the ground until the next rain, which may be as good as a year away. Until then, their bodily activities continue at a reduced rate.
The camel---often called the ship of the desert---is one of the most successful desert animals. Camels can go for long periods without water, but eventually they must drink. When water becomes available to them after a long drought, they may drink 95 liters of water or more. When water is not available, what helps camels survive the desert heat is the fat stored in their humps. A camel’s hump contains about 12 kilograms of fat. Fat is rich in hydrogen. As the fat is digested, hydrogen from the fat combines with oxygen in the air that the camel breathes. The result is H2O, or water. Each kilogram of fat that a camel digests produces about a liter of water.
71. Desert animals are usually more active at night because ______.
A. it is cooler at night           B.it is easier to find water
C.they like the dark            D. they are less likely to be attacked at night
72. Which of the following desert animals can get water only from the food?
A. The camel.       B. The kangaroo rat.     C. The frog.      D. The toad
73. Which of the following is TRUE according to the passage?
A. All the desert animals rest during the day.
B. All the desert animals don’t rest during the day.
C. Cold-blooded desert animals don’t rest during the day.
D. None of the cold-blooded desert animals go out during the day.
74. The title for this passage could probably be ________.
A. Hot Deserts                         B. Desert Animals
C. How Desert Animals Get Water         D. Ways To Escape the Desert Heat
75. The underlined word “burrows” in the first paragraph can be replaced by _________.
A. holes     B. caves     C. rooms      D. Openings
题型:不详难度:| 查看答案
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