懂你英语L6 Unit 3.doc

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1、如有侵权，请联系网站删除，仅供学习与交流懂你英语L6 Unit 3【精品文档】第 27 页Unit 3-1 listening 偷窃They were locked up the safe and the only way to open the safe was with an 8-digits access code. Whoever got in the safe, must have back code. As far as he knew, nobody else had it, or have ever asked to use it to get something from t

2、he safe. Only 2 people in the company were authorized to have the code. He had the code of course, and so did his assistant, Sylvia. There was no reason for Salvia to take the documents, so he couldnt imagine that it was her. That would make sense and she was completely trustworthy. So somebody else

3、 must have the code and stolen the document. She had a notoriously bad memory so she kept a lot of notes. But Sylvia wasnt that careless or irresponsible. She had probably stored the code somewhere on her computer and the theft was able to get it from there. But who could he have been. Suddenly, he

4、realized that there was a new IT guy in the office. He maintained the companys computer network and provide technical support for the staffs. Perhaps he was the guilt he wanted. If anyone could have done it, he certainly had the skills. He was a security expert and he had helped Sylvia stored someth

5、ing on her computer last week. Then john realized that nobody had done a proper background check on the guy. One of other engineers in the company had recommended him and he seemed nice. They had been in a hurry to hire someone for the position so they didnt check this background very carefully. Sud

6、denly, he had a bad feeling. immediately, he used his smartphone to check the companys bank accounts. To his horror, he found that a large amount of money was missing from one of his accounts. There had a large withdraw earlier that morning, more than 75 thousand dollars. He then discovered that the

7、 money had been wired to an account in another country. So not only did the IT guy get the access code for the safe, but he also got the lodge information from the bank. This was a disaster. John immediately called the police and reported the incident. He also called the bank to see if they could st

8、op the transaction. Unfortunately, they said it was too late. the transaction had gone through. Just then, john got an email with the subject line, from the IT guy. It showed smiley face and said thank you for being so stupid. Dont waste your time trying to find me. Ive left the country and will nev

9、er return. Be thankful that I didnt everything in the account. This should a good lesson for you. It was signed, your IT guy. Unit 3-1 dialogue 评论和建议Well, what did you think of my presentations. Did you want me to be frank? I know we work very hard on it. Yes, give me to it straight. I have my own o

10、pinion too. But I appreciate your comments and suggestions. You said you had your own opinion about it. so how do you think of them. I thought it went ok at first. But I could feel there were some bad transitions(过渡). I think I spent too much time on some slides and didnt express them well. I agree

11、on most points. But to me, it was flat. 5 minutes into it I had a hard time paying attention. Flat? Do you mean my voice?Yes, thats part of it. there is very passion almost like you were reading it. Im sure you can do better. Do you have any suggestions?First, let me say I like the slides themselves

12、. The designs were nice and easy to read. But one thing you didnt do was engage with the audience. You focus on your slides and didnt address your audience. Oh, I was trying to but I guess I was too nervous. I didnt want to forget anything. You have a great smile. You need to show that smile and exp

13、ressions when you present. Make eye contact. When you present, I notice you always do that and your pause between ideas. But it seems so easy for you. For me, I look at the faces in the audience. I watch their expressions. I really try to communicate with them. Once I do that, it comes naturally, be

14、cause it becomes real communication. You seem to enjoy it. Well, Im always nervous too before I get started. But once I contact with the audience, Im ok. So contacting with the audience is the key. Focus on them and not me, right?Yes, well put. In fact, if you do that, you will have to adjust your p

15、resentation. It has to flow like in a read conversation. We have to respond to each other. And the pauses are so that the presentation can breathe. Hmm, it seems so obvious. But Ive never thought of it like that. Thats a great advice. I wish we had talked before my presentation. If we had, you may n

16、ot have been open like you are now. anyway, Im sure your next presentation will improve. It takes practice like anything. Dont be too hard on yourself. No, I wont. But next time I will do better and I hope you there. OK, well, lets get back to work. Unit 3-1 Reading 化石能源和哲学悖论Depletion of fossil fuel

17、sA number of scientists are emphasizing the tremendous challenges that will soon be faced when the depletion of fossil fuel supplies coincides with(恰逢) an alarming increase in the global population. They highlight agriculture which is heavily dependent not only on gasoline to fuel machinery, but als

18、o on the petrochemicals necessary to manufacture synthetic(合成的) fertilizers and pesticides. Without these petrochemicals, crop yields would be only a fraction of what they are today. To assume that an abundant source of renewable energy will address this challenge is to ignore the vital non-fuel use

19、s of petrochemicals.Then there is the challenge posed to the current levels of mobility. As a fuel, gasoline is unrivalled(无敌的) in its portability. Electricity requires bulky batteries and hydrogen is notoriously difficult to store. Biofuels might seem like an alternative, but the energy consumed wh

20、en converting corn into bioethanol, for instance, greatly exceeds the output when the fuel is utilized. In any case, once we reach a crisis in the food supply, it will not make sense to divert food crops to other uses.Although there seems to be a widespread belief that the era of oil dependency is c

21、oming to an end due to some technological remedy(补救方法), this may be mistaken. Relying on such an assumption can lead to complacency(自满) and a failure to take precautions(预防措施). Experts may not be able to come up with solution that can lead to a pain-free transition. Scientists warn that relying on a

22、lternative resources might only support half of the global population. The absence of realistic alternative to fossil fuels will mean that the first priority will be to curb the demand for food. Petrochemicals are used to manufacture pesticides, which are good for agriculture. The meaning of catch 2

23、2One of the most interesting books of the 20th century was the novel, Catch 22. In the novel, the term has nothing to do with catching anything. It has a much deeper meaning, and it describes a kind of logical conundrum(难题) thats worth exploring.First, its important to put the phrase into context. I

24、n the novel, a group of American bomber pilots is on an island in the Mediterranean. They face death almost every day when they fly their bombing missions. Many have already lost their lives; the remaining pilots know that it is only a matter of the time before they will be the next victims.One of t

25、he characters in the novel is a doctor. It is his job to see that the pilots are fit to fly. In particular, there is rule that says he has to ground anyone who is crazy. To ground them means to remove them from active duty so that they dont fly.Some of the men believed in the principles they were fi

26、ghting for. They were willing to give their lives for their country. But to others, this was crazy. They thought the whole thing was insane. One of them, Yossarian, wanted out. He was friends with the doctor, and he wanted the doctor to ground him.When Yossarian asked the doctor to ground him, the d

27、octor replied: “youre wasting your time, youre not crazy”.Yossarian told him to ask one of the other pilots, Clevinger, to tell him how crazy he was. “There is no point. Hes crazy.” The doctor replied.” Crazy people cant decide whether you are crazy or not.”“Clevinger isnt crazy! hes one of the sane

28、st pilots here.”“So hes obviously out of his head,” said the Doc. “Hes got to be close calls hes had.”“well, if hes crazy, why dont you ground him?”“I cant unless he asks to be grounded. Thats part of the rule.”“So all he has to do is ask?”“no, then I cant ground him.”“So there is a catch,” said Yos

29、sarian, trying to get things straight.“Sure, theres a catch,” said the Doc, with a slight smile. “Catch 22. If he asks, then he cant be crazy. Only those who are crazy are grounded.”“theres some catch,” observed Yossarian.“its the best there is, ”the Doc replied. Unit 3-2 listening 流行病Despite advanc

30、es in technology, one of the biggest threats to human survival comes from primitive(原始的) lifeforms. Infectious diseases are caused by microorganisms, such as bacteria, virus and parasites(寄生物). These organisms have no access to education or technology, but they present a huge challenge to humanity.

31、Thats because they are adaptable. Just as adaptability has helped humans survive, it makes it more difficult to control infectious diseases. As conditions change, the organism which caused these diseases adapt and become stronger. There are several kinds of infectious diseases. Bacterial infections

32、such as pneumonia(肺炎), are caused by bacteria. these infections can be treated by antibiotics(抗生素), which kill the bacteria. viral infections are caused by virus, such as the influenza virus. These can sometimes be treated by vaccines, such as flu vaccines. An example of parasitic(寄生虫的) infection is

33、 malaria(疟疾). Malaria is caused by parasites transmitted to humans by infected mosquitoes. Once inside the body, the parasites can be difficult to kill or control. And also, these parasites are also adaptable. How serious are infectious diseases. Considered what happened in 1918, the influenza pande

34、mic(流行病). It started in the fall of 1918 with what seemed to be something no more serious than a common cold. In the next 2 years however, it infected a fifth of the worlds population. In fact, it turned out to be the most deadly epidemic in history, killing between 20 and 40 million people. The inf

35、luenza virus that caused it was much stronger than previous influenza viruses. Its molarity rate was 2 and a half percent compared to a point 1 percent in previous epidemic viruses. Its stuck quickly with no mercy, sometime killing people within hours. School and business closed in many places, and

36、people wore masks to prevent the transmission of the virus through the air. What was unusual about this pandemic was that it was most deadly for people age 20 to 40, rather than the elderly and young children. Now a century later, we have flu vaccines that have reduced the severity of the epidemics.

37、 These vaccines needed to be updated every year because the virus changes and new strange immerge. What researchers fear is that a new strange will develop and cause another pandemic. Once an outbreak occurs, transmission of the disease will be even faster than the before. An unattempt consequence o

38、f our improved transportation system will be the speed in which an epidemic can spread. Experts predict that the public health systems will be overwhelmed and unable to react quickly enough. So the best defense will be to prevent an outbreak from occurring. This will require global cooperation and t

39、he sharing of data. It may also require changes in how humans interact with animals. Animals such as birds and pigs carry viruses that may mutate(变异、突变) into a strain(一株) that can infect humans. Such a new strain could lead to another pandemic well before a new vaccine could be developed. Since dise

40、ases epidemic dont stop at national boarders, this is a global issue requiring a global action. The threat of a global epidemic is another example of why we must learn to live together. Unit 3-2 dialogue 子女教育方式You know, my husband and I are having a terrific fight over how to rise our son. What abou

41、t?Hes only 4 years old. My husband Im putting too much pressure on him. He thinks its wrong thing to do. I wouldnt know. Ive not even married yet. Thats my problem. I wish I had a husband to disagree with. Well, he thinks its important for kids to have time to be bored. Bored?Yes, he really said tha

42、t. Can you believe it?Why did he think so? Did he have time to be bored when he was a boy. Well, he grew up in the countryside. He said he had to find things for himself to do. He feel sorry for his kids these day because their days were so structured. Hmm, I see its point. But things have changed a

43、 lot since he was a boy. Thats exactly what I told him. Then he started to get angry. That doesnt sound like him. Hes usually so calm and reserved. In fact, I cant ever remember he and his express in opinion. Well, the other day our boy said he didnt like one of our teachers. Its a English teacher.

44、And then that got my husbands attention. What happened?He got angry and he said he wasnt happy with all the emphasis on English and math. He said I should find some places for our boy to do more of what he wants to do. He said hed find the class the teacher who encourages kids to explore things. Tha

45、t sounds a bit idealistic. Thats what I told him. Then he said its important to learn how to be independent and not always depend on being told what to do. He said that can develop creativity and the love of learning. Certainly. What happens when he is behind of other kids in school? wont he be disc

46、ouraged?He said he wanted the boy to deal with it and see what happens. Some people are more competitive and some arent. Anyway, its an interesting point of view. It may work for some kids and not for others. What about your boy? What do you think?He has a good imagination. sometimes he talks onesel

47、f that he really likes music and dancing. He has a lot of energy. Sometimes its exhausting to be around him. I guess if I were you, I just give him a lot of choices and see what he is interested taking in. and he needs a place where he can use all that energy. Yes, thats what my husband wants to do.

48、 I just get nervous because all his friends are taking classes. I dont him to fall behind. I dont know what to say. Maybe you do some researches and what others advise. Im sure you are not the only one facing this problem. At least your husband is taking an interest. If I ever get married, I hope my

49、 husband will be as involved as yours. But he has to help you with this and just complaint. Yes, thats what we are fighting about. I cant be expected to do this on my own. You have to do this together. Good luck. And wish me luck in finding a husband, ok.Unit 3-2 Reading Wi-Fi诞生和人工智能Hedy Lamarr a Hollywood star and mot