懂你英语L6 Unit 3.docx

1、懂你英语L6 Unit 3Unit 31 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 the safe. Only 2 people in the com

2、pany 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 must have the code and stolen th

3、e 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 realized that there was a new IT

4、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 something on her computer last week. Th

5、en 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。 Suddenly， he had a bad feeling。 imme

6、diately， 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 money had been wired to an accou

7、nt 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 stop the transaction。 Unfortunately

8、， 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 never return。 Be thankful that I did

9、nt 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 opinion too。 But I appreciate your

10、 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 on most points。 But to me， it was

11、 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. The designs were nice and easy

12、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 expressions when you present。 Make e

13、ye 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, because it becomes real communicati

14、on。 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 presentation. It has to flow like

15、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 not have been open like you are no

16、w. 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 31 Reading 化石能源和哲学悖论Depletion of fossil fuelsA number of scientists are emphas

17、izing 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 also on the petrochemicals necessary

18、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 uses of petrochemicals.Then there is

19、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 when converting corn into bioethanol

20、, 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 coming to an end due to some techno

21、logical 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 painfree transition。 Scientists warn that relying on alternative resources might only sup

22、port 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 22One of the most interesting books

23、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。 In the novel, a group of American bo

24、mber 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 the characters in the novel is a doc

25、tor. 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 fighting for. They were willing to gi

26、ve 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 doctor replied: “youre wasting your

27、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 sanest pilots here.”“So hes obviously ou

28、t 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 Yossarian， trying to get things straight。

29、“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 32 listening 流行病Despite advances in technology， one of the biggest th

30、reats 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。 Thats because they are adaptable。 Just

31、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 such as pneumonia(肺炎）, are caused by ba

32、cteria. 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 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 hap