英语听力教程第2册Unit 7 听力原文

1、 实用文档 Unit 7 听力原文 Part I B 1. A: Do you know how many teeth youve got? B: How many teeth? Ooh, ooh. 24? More? (A: Yes) 32? A: Yes. 2. A: Do you know how many bones there are in your body? B: How many bones? Ill take a guess. 153. A: 206 3. A: How often does your heart beat? B: 98 times a minute. A:

2、No, 70 times a minute. 4. Bob: Do you know what the boss thinks you should do, Billy? Billy: Just you keep your great nose out of this, Bob, will you? (Meaning: not interfere in) 5. Anne: Steven Kent, I never, never want to see you in my life again. Steven: Oh no. Mary: You really have put your foot

3、 in it, havent you? (Meaning: cause embarrassment by doing or saying sth. tactless) 6. Kate: Dave! Can you give me a hand, please? Dave: What? Kate: I said can you give me a hand. Dave: All right, Im coming. No need to shout. (Meaning: ask for help) 7. Max: Are there any jobs going in your company t

4、hen, for an intelligent, hard-working young man like my son Julian? Frank: No, I havent heard of any at all recently. Max: Well, could you keep your ears open, just in case? (Meaning: listen with care) 8. Carol: Have you heard about Maggie then? Norma: Maggie? Maggie Thatcher? Carol: No. Maggie Brow

5、n. Shes in love again. Norma: Oh not again. Who with this time? Carol: With her boss. Head over heels in love with him, she is. (Meaning: completely) 9. Nick: Have you ever lent any money to Mick? Jill: Mick? Huh! I wouldnt lend him any if I were you. Nick: Why not? Doesnt he pay it back? Jill: No.

6、Never. Hes up to his neck in debts. (Meaning: deeply involved in) 10. Liz: Shes a very good doctor. Never looks at her watch. Never complains. Nothings too much trouble for her. Pat: I know, yeah. Not many like her about. Shes all heart, really. All heart. (Meaning: with the deepest devotion) 文案大全 实

7、用文档 C Nobodys really sure why people go bald, but some scientists believe that people may inherit baldness. If you are interested, check out your mother father. Your hairline may look like his when you get older. Now listen to this radio phone-in. Complete the following chart. check out：查查 hairline：

8、 发线 comb hair：梳头 shampoo：洗发 bald：秃顶 baldness：秃头 ridiculous：可笑 patch：部分，区域 wig：假发 Radio presenter: All right. Thank you for that call, Rosemary. We go now, I think, to Glasgow and our next caller, er, Jim Baillie. Hello Jim. Jim: Hello? Radio presenter: Hello Jim. Whats your problem? Jim: Er well Im

9、er beginning to lose my hair. Er, I went to the doctor, but he just said there was nothing I can do about it. He said it was probably hereditary. My father was bald by the time he was thirty. Maurice: Hello, Jim. And how old are you? Jim: Me. Im twenty-eight. Maurice: And are you losing a lot of hai

10、r, then? Jim: Well, it comes out a lot when I comb my hair and you can see a thin part on the top of my head. Maurice: And does that really worry you, jim? Jim: Well. I dont like it. Its old you know looks old I dont want to look like a middle-aged man at twenty-eight. And I wondered if there was so

11、me special shampoo I should use if you could tell me one that I should buy something like that you know to stop it getting worse. Maurice: Well, you know, Jim, to be honest with you theres not really a lot you can do about it, actually, Im afraid. I mean, baldness is one of those things that, in my

12、experience, you just have to try to accept. Some men find it more difficult to accept baldness than others Tessa: There is one piece of advice, though, Jim, and thats dont try to comb your hair over the bald or thin patch. Dont try to hide it. Whatever you do, dont comb it over because that usually

13、looks ridiculous. And the other thing that usually looks ridiculous is a man with a wig. Dont let anyone persuade you to buy one of those false hairpiece things, because they usually look much worse than a bald man. I actually think bald men can look very attractive. My husbands bald and I think it

14、really suits him. Part II The digestive system and diarrhea The human body is a highly complex self-generator, that is to say, provided it is given the right fuel, it is capable of both curing and warding off disease. The food we eat helps to give us energy. It has a long journey to make before all

15、its goodness has been taken into our body. The food takes up to six hours to be digested in the stomach, depending on the size of the meal. The 文案大全 实用文档 complete digestive process takes about 24 hours. But sometimes the system can go wrong. complex：复杂 self-generator： 自愈(体) provided：假设 fuel：燃料 wardi

16、ng off：避免 digest：消化 digestion：消化 digestive process：消化过程 digestive system：消化系统 stomach：胃 over-tax：课税过重；负担过重 insufficiently：不够，不能胜任 grind to a halt：慢慢减速到停止;陷入停顿 rusty：生锈的，腐蚀的 coil up：缭绕 mechanism：机制，机能 sluggish： 行动迟缓的，反应慢的 abdomen：肚子 efficiently：效率高地;有效地 break down：损坏 watery：含水的，水分多的 squeeze：挤；榨 muscl

17、e：肌肉 irritable：易怒的，急躁的;过敏的;应激性的;毛躁 dehydrate：使脱水，使干燥 gut：肠子；勇气;内脏;直觉; reasonable：合理的，公道的 irritate：刺激，使兴奋; bowel： 肠;内部;同情心，怜悯心 obviously：明显 clear up：清除 intestine：肠 enzyme：酶 feces：粪，屎，渣滓;粪便 symptom：症状;征兆 diarrhea： 腹泻 constipation：便秘 contaminated food：污染的食物 virus：病毒 parasite：寄生虫 dehydration：脱水;干燥，极度口渴;

18、失水 fluid： 液体，流体 life saver：救生者 文案大全 实用文档 bacteria：细菌 syndrome：综合征;综合症状;典型表现 tummy pains：胃/肚子痛 a pinch of：一撮，少许 A Our body is made up of thousands of different parts. All these parts work together to keep us alive and to help us move around. The parts of the human body are like the parts of a very co

19、mplicated machine. Like any other machine, however, if it is inexpertly cared for, over-taxed or insufficiently used, it will become rusty, sluggish or clogged and parts of its mechanism may even grind to a halt. That is why it is so important to keep every part of the human machine healthy and prop

20、erly cared for. To keep in good running order, the body requires the raw materials for growth and the replacement of tissues when necessary. Our bodies burn food like fuel to produce the energy we need. The human digestive system is a bit like a very long tube, but its a lot more complex. Its severa

21、l meters long, and most of it is carefully coiled up in our abdomen. It has several important jobs to do. First, it must digest or break down our food. Digestion starts the moment food enters our mouth. Then it continues as the food is squeezed along the gut by muscles in the wall of the intestine.

22、As the food travels through the gut, natural chemicals called enzymes are added to it, which help break down the food. Then this digested food and water must be absorbed from the gut into our blood stream so that it can be used by the body. Finally, the gut must carry away any waste products in the

23、form of feces. Usually our intestine does all these things very efficiently. But sometimes things can go wrong. Probably the most common gut symptoms are diarrhea and constipation. With diarrhea, the food and water travels too quickly through the intestine, often making the feces watery, and making

24、it necessary to open the bowels more frequently. There are lots of causes of diarrhea. Probably the commonest causes of diarrhea are contaminated food or water, and infection caused by viruses or parasites. Many cases of diarrhea clear up within a few days without any special medicines. But the body

25、 loses a lot of fluid through diarrhea, so there is a very real risk of the body drying out or becoming dehydrated. Because of this risk of dehydration, the best treatment for diarrhea is simply to make sure you are drinking enough. Avoiding dehydration in this way can be a life saver. B There are l

26、ots of different causes of diarrhea. Um, there are infections that can happen, and this is food poisoning, if you like, where in your food you eat some sort of bacteria or organisms, which infect you. Some foods can just irritate the gut and tend to give you diarrhea, although they are not infected.

27、 Its just the food itself (that) might irritate your system. Some people, if they get very nervous and stressed about something, find they tend to get diarrhea. Something called the irritable bowel syndrome where something goes wrong with the way the gut works. And people that suffer from this tend

28、to get, um, tummy pains, and they get sometimes diarrhea, sometimes constipation. All sorts of causes. Most attacks of diarrhea, um, particularly in adults, are not serious and they clear up by themselves within one or two days. The most important thing is to drink lots of fluid, because if you have

29、 got diarrhea, youre obviously losing a lot of fluid. And so its better really not to eat too 文案大全 实用文档 much, not to worry about that, but to make sure you drink plenty of fluid. And ideally, this should have a little bit of salt and sugar in. You can get special rehydrating fluids, which are specia

30、lly mixed. But if you want to make your own by adding just a teaspoonful of sugar and a pinch of salt, then its obviously perfectly reasonable to do that. Part III Immunity The environment contains many potentially destructive microorganisms. It is impossible for us to avoid contact with microbes. T

31、hats why our body is constantly under attack from invading germs and infections. Then why dont we suffer from constant illness? Do we have our own defense system? B. potentially：潜在地 destructive：破坏性的 microorganisms：微生物 impossible：不可能 microbes： 微生物，细菌 invading germs：侵入的细菌 suffer from：生病；忍受 defense sys

32、tem：防护系统 lash：鞭挞，鞭子;责骂;讽刺;眼睫毛 immunity：免疫 constant (ly)：持续 come into play：起作用 germ：细菌 literally：字面上 assist：帮助 reserve：保存，储备，储存 backup：支持，后援;阻塞;（计）备份文件 bone marrow：骨髓 antibody：抗体 measles：麻疹 polio：脊髓灰质炎；小儿麻痹症 tuberculosis：肺结核 The human body is constantly under attack from invading germs and infections

33、. And the only reason we dont suffer from constant illness is our bodies have their own defense mechanism to fight off disease. This resistance to infection is called immunity. A: How does immunity work? B: Well, the immune system is the bodys own secret army, which fights infection. And it consists

34、 of a whole range of troops, soldiers, their cells and their molecules. Now the headquarters of this army is really the blood. Thats where it does most of its fighting. And sometimes it needs some reserve, and that comes from the bone marrow. Thats where the immune cells are made. A: So there are ma

35、ny different kinds of cells, different kinds of molecules in the immune system. I guessed the ones that were probably more familiar with are white blood cells. B: Thats right. White blood cells form a major part of the bodys defense. But there are also antibodies in their life, more proteins. They j

36、ust lash onto the invaders. The white cells can 文案大全 实用文档 sometimes actually gobble up invaders. The clever thing is that once the infection has attacked our body, the immune system seems to have a memory of the invader, so that the next time it sees the invader it can attack very quickly. A: There

37、are some things which were not naturally immune to and thats where vaccination comes in, isnt it? B: Exactly. Vaccination plays on the bodys ability to remember infection. So what happens is that someone is given a version of an illness, for instance, measles or polio, or tuberculosis, and the body

38、thinks that it is actually being infected with that infection. And the next time it sees it, the body can respond very quickly. All the troops of its immune system can come into play. A: Now sometimes the immune system doesnt work very well, does it? B: No. Its a remarkably complex system. And somet

39、imes it can go wrong. Either it can be overactive, so it actually starts to attack our own body self, or it can be underactive sometimes, and we are more likely to be infected in that situation. A: Are there any important illnesses which result from the immune system so that its turning on our bodie

40、s themselves? B: There are. One example would be a disease like multiple-sclerosis, where the bodys own immune system attacks the lining of nerves, which means that peoples nerves dont work properly. A: Were able to assist the body in its fight against the illness in many cases, but there are some d

41、iseases which we dont seem to be able to produce a vaccine for. AIDS is one of them. Why not? B: The problem is AIDS, which is caused by the HIV virus, attacks the human immune system, which means that our normal defenses arent there to fight off that infection. The other problem with trying to prod

42、uce a vaccine against HIV or AIDS is that the virus, HIV, can change itself so easily. Thats very difficult to find a vaccine which can recognize all the different types of HIV. So one vaccine may be effective against one type of the virus but it may absolutely be no good for another type. C. Presen

43、ter: The human body is constantly under attack from invading germs and infections. And the only reason we dont suffer from constant illness is our bodies have their own defense mechanism to fight off disease. This resistance to infection is called immunity. And here with me to discuss how it works i

44、s Grime Easton. He is a family doctor, and a member of the Science In It here in the BBC World Service. Grime, how does immunity work? Grime: Well, the immune system is the bodys own secret army, if you like, which fights infection. And it consists of a whole range of troops, soldiers, their cells a

45、nd their molecules. Um, now the headquarters of this army is really the blood. Thats where it does most of the fighting. And sometimes it needs some reserve, some backup, and that comes from the bone marrow. Thats where the immune cells factories are. Presenter: So there are many different kinds of

46、cells, and different kinds of molecules tied up in the immune system. I guessed the ones that were probably more familiar with are white blood cells. Grime: Thats right. White blood cells form a major part of the bodys defense. But there are also antibodies in their life, more proteins, which just l

47、ash onto the invaders. Um, but, as you say, the white cells can sometimes actually gobble up invaders. So the clever thing is that once the infection has attacked our body, the immune system seems to have a memory of the invader, so that the next time it sees the invader it can attack very quickly.

48、The immune system in the human 文案大全 实用文档 body fights invading disease. Immunity occurs because the immune system can remember the chemical makeup of invading germs and attack them very quickly. Presenter: There are some things which were not naturally immune to and thats where vaccination comes in,

49、isnt it? Grime: Exactly. Vaccination plays on the bodys ability to remember infection. So what happens is that someone is given a version of an illness, for instance, measles or polio, or tuberculosis, and the body thinks that it is actually being infected with that infection. And the next time it s

50、ees it, um, the body can respond very quickly. And all the troops of its immune system can come into play. Vaccination can be used to protect the body against specific infections. Presenter: Now sometimes the immune system doesnt work very well, does it? Grime: No. Its a remarkably complex system. I

51、ts a very complicated system. And sometimes it can go wrong. Either it can be overactive, so it actually starts to attack our own body self, or it can be underactive sometimes, and we are more likely to be infected in that situation. Presenter: Are there any important illnesses which result from the

52、 immune system so that its turning on our bodies themselves? Grime: There are. And one example would be a disease like multiple-sclerosis, where the bodys own immune system, we think, attacks the lining of nerves, which means that peoples nerves dont work properly. Presenter: Were able to assist the

53、 body in its fight against the illness in many cases, but there are some diseases which we dont seem to be able to produce a vaccine for. Um, AIDS is one of them. Why not? Grime: Well, the problem is AIDS, which is caused by the HIV virus, is that HIV itself attacks the human immune system, which me

54、ans that our normal defenses arent there to fight off that infection, or indeed many other sorts of infection. The other problem with trying to produce a vaccine against HIV or AIDS is that the virus, HIV, can change itself so easily. Um, thats very difficult to find a vaccine which can recognize al

55、l the different types of HIV, which there are. So one vaccine may be effective against one type of the virus but it may absolutely be no good for another type. HIV is the virus that causes AIDS. HIV destroys the bodys immune system, and puts the body at greater risk from other common infections. Pre

56、senter: I was talking to Dr. Grime Easton of the Science In It about immunity. The reason why he, I, and I hope you, are able to remain as healthy as we are. Part Why do I catch colds Virus are most definitely going to get you. And when they do, they will give you anything, from a cold to Ebola. And

57、 yet, technically, virus have no life of their own. So why do they cause so much trouble? More to the point, why do I catch colds? See that guy with the blocked nose. When he sneezes, 40,000 droplets will fly twelve feet in their air, infecting up to 150 people. You should have ducked. A cold virus

58、just cant live without you. With no cells of its own, it needs to take over your cells and replicate. Heres something to think about. The virus can only travel around inside a blob of macus. And that mean whenever you catch a sniffle, someone elses snot has been up your nose. Anyway, your immune sys

59、tem is constantly on the prowl for attackers like these. If it wasnt, you could end up with fatal pneumonia. So, when it spots a viral invasion, it grabs a sample. Here, a T cell first identifies the invader and then deploys an army of tailor-made immune cells to your nose. These provide special 文案大

60、全 实用文档 backup for the standard immune cells already fighting your cold. Your nose has become a battleground. Meanwhile, to stop infection spreading to your lungs, youre manufacturing a daily pint of macus. This snot gives you a headache. While the virus irritates your nose, so you have to blow it ar