题目内容
（请给出正确答案）
How many chemical changes take place in the brain？
A．10,000 every second.
B．6,000,000 every minute.
C．100,000 every minute.
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Home Fire Safety Precautions
It's a good idea for every home to have at least one multi-purpose fire extinguisher.
Keep one in plain sight in the kitchen, and consider others for the garage and for the workshop places where firefighters say fire is most (144) to occur.
Buy a dry chemical extinguisher rated for Type A, B and C fires.
This ABC rating (145) wood, paper and fiber fires, flammable liquids such as grease and petroleum products and electrical fires. (Type D is for chemical fires, less likely in the home.)
The gauge near the spout indicates how many pounds of chemical and pressure are left for use. Get the extinguisher recharged after any (146) use.
(44)
A．like
B．likelihood
C．likeness
D．likely
【C1】
A．times
B．schedules
C．plans
D．timing
听力原文： Welcome to physiology 100. I'm doctor Ann Roberts. l think everyone here is the sophomore since this is the nursing department's second year physiology course. If you are first year nursing students, please see me after class about transfering to the introductory course. OK, I'd like to begin my first lecture by introducing two important terms: vitalism versus mechanism. How many of you've heard these terms？ Oh, I see someone of you has! Well, vitalism and mechanism are two completely opposed approaches to human physiology. According to the vitalist, the laws of the physics and chemistry alone cannot explain the processes of life. To the vitalist, there is a so- called "vital force" and this "vital force" is totally separated from mental energy. As you may have guessed, vitalism is a kind of philosophical approach. Mechanism, on the other hand, is the view that all life phenomena, no matter how complex, can be explained according to chemical and physical laws, since we can support mechanism through scientific experimentations. The modem scientist tends to be a mechanist, but vitalism is not totally dismissed especially in feel, such as brain physiology. There are terms, such as human consciousness, that haven't been defined by physical and chemical terms. I recently read an interesting article that deals with the variant question that whether the mind is separated from the brain or whether the chemical is in the physiological working of the brain. I'd like to continue with this next time and so we can speak more details. I have some copies of that article and I want you to take them home and read them for next week.
What does Tom threaten to do if he can't get what he wants？
A．To shout out in front of the others.
B．Not to leave the boss's office.
C．To accuse the company.
D．To quit his job.
听力原文： Welcome to Physiology 100. I'm Doctor Ann Roberts. I assume everyone here is a sophomore, since this is the Nursing Department second-year physiology course. If you are first-year nursing students, please see me after class about transferring into introductory course. OK, I'd like to begin my first lecture by introducing two important terms, vitalism versus mechanism. How many of you have heard of these terms？ Oh, I see sorae of you have. Well, vitalism and mechanism are two completely opposite approaches to human physiology. According to the vitalist, the laws of physics and chemistry alone can not explain the processes of life. To the vitalist, there is a so-called vital force, and this vital force is totally separate from that of energy. As you may have guessed, vitalism is a kind of philosophical approach. Mechanism, on the other hand, is the view that all life phenomena, no matter how complex, can be explained according to chemical and physical laws. Since we can support mechanism through scientific experimentation, the modern scientist tends to be a mechanist. But vitalism is not totally dismissed, especially in fields such as brain physiology, where terms such as human consciousness haven't been defined yet in physic-chemical terms. I recently read an interesting article that dealt with this very question. Is the mind separate from brain, or is the mind only the chemical and physiological workings of the brain.'？ I'd like to continue with this next time, so that we can speak in more detail. I have some copies of that article. And I want you to take it with you and read it for next week.
For whom is the lecture intended？
A．Freshman.
B．Sophomore.
C．Junior.
D．Senior.
听力原文：V: Could you tell me a bit about quality control at the factory？
P: Well, there are four main quality control inspection points. We begin by visiting our suppliers to make sure we are happy with their quality control. Next, e inspect all goods on arrival at our factory and the third inspection point is during production. And the final stage is chemical analysis of our finished goods.
V: And what do you look for at each of the four inspection points？
P: Well each stage is different. With our suppliers, for instance, we inspect their QC processes and, even more importantly, their factory hygiene. If we're not happy with their hygiene, we'll caned the supply contract. At the goods in stage we make sure that order quantities are correct and the quality is OK. We also check the transport packaging. If the packaging is damaged, the warehouse shelf-life can be reduced.
V: And what quality checks do you run during production？
P: We take samples to check there isn't too much cooking oil on the snack and that each snack has the minimum amount of flavouring. We also check the size of the snacks and their crispness. If the snacks are too oily, they go soft.
V: So that leaves the finished goods. What do you check for at the final QC stage？
P: We check individual bags to make sure that the packet weight is above the acceptable minimum and that the packet is sealed properly. We also check the taste.
V: And how do you do that？
P: Well, we eat them. How rise？ We also do chemical analysis to check things like fat levels and other information that we have to put on the packets.
•You will hear a conversation about quality control.
•For each question 23-30, mark one letter (A, B or C) for the correct answer.
•After you have listened once, replay the recording.
How many are there quality control inspection points？
A．three
B．four
C．five
1 Americans this year will swallow 15,000 tons of aspirin, one of the safest and most effective drugs invented by man. The most popular medicine in the world today, it is an effective pain reliever. Its bad effects are relatively mild, and it is cheap.
2 For millions of people suffering from arthritis(关节炎), it is the only thing that works. Aspirin, in short, is truly the 20th-century wonder drug. It is also the second largest suicide drug and is the leading cause of poisoning among children. It has side effects that, although relatively mild, are largely unrecognized among users.
3 Although aspirin was first sold by a German company in 1989,it has been around much longer than that. Hippocrates, in ancient Greece, understood the medical value of the leaves and tree bark which today are known to contain salicylates(水杨酸盐) ,the chemical in aspirin. During the 19th century, there was a great deal of experimentation in Europe with this chemical, and it led to the introduction of aspirin. By 1915, aspirin tablets were available in the United States.
4 A small quantity of aspirin (two five-grain tablets)relieves pain and inflammantion(炎症). It also reduces fever by interfering with some of the body's reactions. Specifically, aspirin seems to slow down the formation of the acids involved in pain and the complex chemical reactions that cause fever. The chemistry of these acids is not fully understood, but the slowing effect of aspirin is well known.
5 Aspirin is very irritating to the stomach lining and many aspirin takers complain about upset stomach. There is a right way and a wrong way to take aspirin. The best way is to chew the tablets before swallowing them with water, but few people can stand the bitter taste. Some people suggest crushing the tablets in milk or orange juice and drinking that.
A History of Aspirin
B Bad Things about Aspirin
C Origin of Aspirin
D Good Things About Aspirin
E How Aspirin Works in the Body
F How to Take Aspirin
Paragraph 2 ______
听力原文： As is known to all, scientists and philosophers had studied the human body and its functions from very early times. Unfortunately, many of the ideas and theories, correct and incorrect, were accepted without question for a great number of years. But by the 16th century, knowledge gained through chemical experiments was beginning to make some people think more deeply about how the human body works.
A most important medical discovery was made by William Harvey in 1628. He found out that the blood is circulated round the body in one direction only by the pumping action of the heart. It had previously been incorrectly thought that the blood moved with a backward and forward motion.
Early in the 17th century a new instrument came into use that was to open up a whole new area in the study of medical and scientific matters. This was the microscope.
The first instruments were not very efficient. They were able to magnify only a very small part of the object and this was always surrounded by rings of colored light. Nevertheless a great step forward had been taken which was of vital importance for future research and development.
(30)
A．Scientists and philosophers had never studied the human body and its functions.
B．Many of the ideas and theories that people used to accept were all incorrect.
C．People used to accept ideas and theories.
D．People used to accept undoubtedly many of the ideas and theories, correct and incorrect.
M: Well, to begin with, I was surprised to find out there was so much going on in bones. I always assumed they were pretty lifeless.
W: Well, that's an assumption many people make. But the fact is bones are made of dynamic living tissue that requires continuous maintenance and repair.
M: Right. That's one of the things I found so fascinating about the article the way the bones repair them selves.
W: Ok. So can you tell us how the bones repair them selves.
M: Sure. See, there are two groups of different types of specialized cells in the bone that work together to do it. The first group goes to an area of the bone that needs repair. This group of cells produces the chemical that actually breaks down the bone tissue, and leaves a hole in it. After that' the second group of specialized cells comes and produces the new tissue that fills in the hole that was made by the first group.
W: Very good. This is a very complex process. In fact, the scientists who study human bones don't completely understand it yet. They are still trying to find out how it all actually works. Specifically, be cause sometimes after the first group of ,cells leaves a hole in the bone tissue, for some reason, the second group doesn't completely fill in the hole. And this can cause real problems. It can actually lead to a disease in which the bone becomes weak and is easily broken.
M: Ok, I get it. So if the scientists can figure out what makes the specialized cells work, maybe they can find a way to make sure the second group of cells completely fills the hole in the bone tissue every time. That'll prevent the disease from ever occurring.
(23)
A．How bones help the body move.
B．How bones continuously repair themselves.
C．The chemical composition of human bones.
D．Two different types of bones in the human body.
What does the author try to emphasize in Paragraph 1？
A．How plants communicate is still a mystery.
B．Enough attention has been paid to plant talk.
C．Plants are the furniture of the natural world.
D．Plants can communicate with each other.
听力原文：M: Could you tell me a bit about quality control at the factory？
W: Well, there are four main quality control inspection points. We begin by visiting our suppliers to make sure we are happy with their quality control. Next, we inspect all goods on arrival at our factory and the third inspection point is during production. And the last stage is chemical analysis of our finished goods.
M: And what do you look for at each of the four inspection points？
W: Well each stage is different. With our suppliers, for instance, we inspect their quality control processes and, even more importantly,their factory hygiene. If we're not happy with their hygiene, we'll cancel the supply contract. As the goods is in stage, we make sure that order quantities are correct and the quality is OK. We also check the transport packaging. If the packing is damaged, the warehouse shelf-life can be reduced.
M: And what quality checks do you run during production？
W: We take samples to check there isn't too much cooking oil on the snack and that each snack has the minimum amount of flavouring. We also check the size of the snacks and their crispness.If the snacks are too oily, they go soft.
M: So that leaves the finished goods. What do you check for at the final quality control stage？
W: We check individual bags to make sure that the packet weight is above the acceptable minimum and that the packet is sealed properly. We also cheek the taste.
M: And how do you do that？
W: Well, we eat them. How else？ We also do chemical analysis to check things like fat levels and other information that we have to put on the packets.
Questions 23-30
？You will hear a conversation about quality control.
？For each question (23-30), mark one letter (A, B or C) for the correct answer.
？After you have listened once, replay the recording.
How many are there quality control inspection points.
A．Three
B．four
C．five
