2018年12月六级英语考试(卷一)真题解析(共13页).doc

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1、精选优质文档-倾情为你奉上1 作文For this part， you are allowed 30 minutes to write an essay on how to balance academic study and extracurricular activities。 You should write at least 150 words but no more than 200 words。第一段：学术学习和课外活动同等重要第二段：分析重要性的原因。第三段：得出结论。It is generally agreed that academic study has been play

2、ing a crucial role in students life。 Nevertheless， we should not neglect the equal importance of extracurricular activities which can help us to build confidence and enhance overall abilities。A number of factors might account for participating in both academic study and extracurricular activities。 W

3、ith respect to academic study， one of the most common factors is to facilitate our academic competence。 Theres no doubt that study is the priority to students， and the academic performance， to a large extent， determines whether we can enter a prestigious school and get a decent job。 As for extracurr

4、icular activities， it is worth mentioning that it can supplement what we cannot learn from schools， such as the ability of critical thinking， problem-solving and addressing interpersonal relationship。In view of how to balance academic study and extracurricular activities， effective measures should b

5、e taken into consideration。 In my perspective， the most useful technique is to promote our efficiency。 Only if can we manage our time well， we can have more time to do the both things。 To be more specific， a to-do list is highly recommended so that we can draw a clear picture of what we are going to

6、 do and distribute time to academic study and extracurricular activities in a more effective and balanced way。 With the efforts concerned， the imbalance will no longer be a problem。2 听力ABCDD ABCAC BCDAB ADCDA BDACB1。 A) It can benefit professionals and non-professionals alike。2。 B) Stories about som

7、e female physicists。3。 C) By including lots of fascinating knowledge。4。 D) It provides experiments they can do themselves。5。 D)He has not idea how to proceed with his dissertation。6。 A) It is too broad。7。 B) Nature。8。 C) List the parameters first。9。 A) The unprecedented high temperature in Greenland

8、。10。 C) It typiaclly appears about once every ten years。11。 B) Iceless summers in the Arctic。12。 C) A strong determination。13。 D) It is most important to have confidence in ones willpower。14。 A) They could keep on working longer。15。 B) They are subject to change。16。 A) About half of current jobs mig

9、ht be automated。17。 D) They could grade high-school essays just like human teachers。18。 C) It has to rely on huge amounts of previous data。19。 D) The theoretical aspects of sustainable energy。20。 A) Drive trains with solar energy。21。 B) Find a new material for storing energy。22。 D) The poor relation

10、 between national health and social care services。23。 A) It was mainly provided by voluntary services。24。 C) Their preference for private services。25。 B) They have long been discriminated against。conversation 1Hey I just read a great book about physics。 I think youd like it。 Its called the physics o

11、f the world。 Its written by a scientist named Sylvia Mendez。Oh I read that book。 It was great。 The writer is a warm and competent guide to the mysteries of physics。 I think it promises enrichment for any reader from those who know little about science to the career physicist。And its refreshing to se

12、e a strong curious clever woman adding her voice to the scientific discourse and a field that has been traditionally dominated by men。 I think she has to be commended for making an effort to include anecdotes about little known female scientists。 You know they were often victims of a generation firm

13、ly convinced that the womans place was in the home。I like how the book is clearly written with each chapter brought to life by pieces of fascinating knowledge。 For example in one chapter she exposes a myth that Ive heard taught by university physics professors。 Ive often heard that medieval glass wi

14、ndows are thicker at the bottom because glass flows like a fluid。 This， she shows， is not true。 The distortion is actually thanks to a peculiarity of the glassmakers process。Yeah I like how she cultivates scientific engagement by providing a host of Do It Yourself experiments that bring the same fou

15、ndational principles of classical physics that govern everything from the solar system to your kitchen table。 From using complex laws of physics to test whether a spinning egg is cooked to measuring atmospheric pressure by lifting a piece of cardboard。 Her hands-on examples make her book a truly int

16、eractive read。Yes I must say this a equation-free book is an ideal read for scientists of all stripes， anyone teaching science and even people who dislike physics。Question 1： what does the woman say about the book the man recommended?A) It can benefit professionals and non-professionals alike。Questi

17、on 2： what can we find in the book the man recommended?B) Stories about some female physicists。Question 3： How does the author bring her book to life?C) By including lots of fascinating knowledge。Question 4： How does the book cultivate readers interest in physics。D) It provides experiments they can

18、do themselves。conversation 2A：Hi professor。 I was hoping I could have a moment of your time if youre not too busy。 Im having some problems getting started on my dissertation and I was hoping you could give me some advice on how to begin。B：Sure。 I have quite a few students though.So can you remind me

19、 what your topic is?A：the general topic I chose is aesthetics， but thats as far as Ive got I dont really know where to go from there。B：Yeah，thats much too large a topic。 You really need to narrow it down in order to make it more accessible。 Otherwise youll be writing a book。A：Exactly。 Thats what I w

20、anted to ask you about。 I was hoping it would be possible for me to change topics。 Im really more interested in nature than beauty。B：Im afraid you have to adhere to the assigned topic。 Still， If youre interested in nature， then that certainly can be worked into your dissertation。 Weve talked about H

21、ume before in class right。A：Oh yeah， hes the philosopher who wrote about where our ideas of beauty come from。B：Exactly。 I suggest you go to the library and get a copy of his biography。 Start from there。 But remember to stick to the parameters of the assignment。 This paper is a large part of your cum

22、ulative grade。 So make sure to follow the instructions。 If you take a look at his biography。 You can get a good idea of how his life experiences manifest themselves in his theories of beauty。 specifically the way he looked towards nature as the origin of what we find beautiful。A：Great。 Thanks for ta

23、king the time to answer my questions， Professor。 Ill let you get back to class now。B：If theres anything else you need， please come see me in my office any time。Question 5： What is the mans problem?D)He has not idea how to proceed with his dissertation。Question 6 What does the professor think of the

24、mans topic?A) It is too broad。Question 7 Whats the man really more interested in?B) Nature。Question 8 what does the professor say the man has to do?C) List the parameters first。passage 1During the arctic winter from October to March， the average temperature in the frozen north typically hovers aroun

25、d minus 20 degrees Celsius。 But this year the Arctic is experiencing much higher temperatures。 On February the 20th the temperature in Greenland climbed above freezing or zero degrees Celsius and it stayed there for over 24 hours。 Then on February the 24th the temperature on Greenlands northern tip

26、reached six degrees Celsius。 Climate scientists describe the phenomenon as stunning。 Weather conditions that drive this bizarre temperature surge have visited the Arctic before。 They typically appear about once in a decade。 However， the last such increase in temperature took place two years ago。 Thi

27、s is troubling as climbing arctic temperatures combined with rapid sea ice loss are creating a new type of climate feedback loop which could accelerate Arctic warming。 Indeed， sea ice cover in the Arctic is melting faster than expected。 Without those masses of cooling sea ice， warm air brought to th

28、e Arctic can penetrate further inland than it ever did before。 The air can stay warmer longer too。 This drives additional melting。 Overall earth is warming at a rapid pace。 2014 through 2017 rank as the hottest years on record and the Arctic is warming twice as fast as any place else on earth。 This

29、raises unique challenges for Arctic wildlife and indigenous people who depend on Arctic ecosystems to survive。 Previously climate forecasts predicted that Arctic summer ice would disappear entirely by around 2060， but based on what scientists are seeing now the Arctic may be facing summers without i

30、ce within 20 years。Question 9。 What did climate scientists describe as stunning?A) The unprecedented high temperature in Greenland。Question 10。 What does the passage say about that temperature surge in the Arctic?C) It typiaclly appears about once every ten years。Question 11。 what may occur in 20 ye

31、ars according to scientists recent observations?B)Iceless summers in the Arctic。Passage2A good dose of willpower is often necessary to see any task through whether its sticking to a spending plan or finishing a great novel。 And if you want to increase that willpower。 A new study suggests you just si

32、mply have to believe you have it。 According to this study， what matters most is what we think about our willpower。 If we believe its a finite resource， we act that way， we feel exhausted and need breaks between demanding mental tasks。 However， people who view their willpower as a limitless resource

33、get energized instead。 The researchers used a psychological assessment tool to test the validity of the study。 They asked 1100 Americans and 1600 Europeans to grade different statements such as after a challenging mental activity， my energy is depleted and I must rest to get it refueled again or I c

34、an focus on a mental task for long periods without feeling tired。Although there was little difference between men and women overall。 Americans were more likely to admit to needing breaks after completing mentally challenging tasks European participants on the other hand claimed they were able to kee

35、p going。 Based on the findings， the researchers suggest that the key to boosting your willpower is to believe that you have an abundant supply of it。 Your feelings about your willpower affect the way you behave。 But these feelings are changeable， they said。 Changing your beliefs about the nature of

36、your self-control can have positive effects on character development。 This leads to healthier behaviors and perceptions of other people。Question 12 What is often necessary for carrying through a task?C) A strong determination。Question 13 What is the finding of the new study?D) It is most important t

37、o have confidence in ones willpower。Question 14 What do we learn about European participants as compared with their American counterparts?A) They could keep on working longer。Question 15 What do the research say concerning peoples feelings about willpower?B)They are subject to change。lecture 1Here i

38、s my baby niece Sarah。 Her mum is a doctor and her dad is a lawyer。 By the time Sarah goes to college the jobs her parents do are going to look dramatically different。 In 2013，researchers at Oxford University did a study on the future of work。 They concluded that almost one in every two jobs has a h

39、igh risk of being automated by machines。 Machine learning is the technology thats responsible for most of this disruption。 Its the most powerful branch of artificial intelligence。 It allows machines to learn from data and copy some of the things that humans can do。 My company， Kaggle， operates on th

40、e cutting edge of machine learning。 We bring together hundreds of thousands of experts to solve important problems for industry and academia。 This gives us an unique perspective on what machines can do， what they cant do and what jobs they might automate or threaten。 Machine learning started making

41、its way into industry in the early 90s。 It started with relatively simple tasks。 It started with things like assessing credit risk from loan applications， sorting the mail by reading handwritten zip codes。 Over the past few years， we have made dramatic breakthroughs。 Machine learning is now capable

42、of far， far more complex tasks。 In 2012， Kaggle challenged its community to build a program that could grade high school essays。 The winning programs were able to match the grades given by human teachers。 Now given the right data， machines are going to outperform humans at tasks like this。 A teacher

43、 might read 10000 essays over a 40-year career。 A machine can read millions of essays within minutes。 We have no chance of competing against machines on frequent high-volume tasks， but there are things we can do that machines cannot。 Where machines have made very little progress is in tackling novel

44、 situations。 Machines cant handle things they havent seen many times before。 The fundamental limitation of machine learning is that it needs to learn from large volumes of past data。 But humans dont。 We have the ability to connect seemingly different threads to solve problems weve never seen before。

45、Question 16 what did the researchers at Oxford University conclude?A) About half of current jobs might be automated。Question 17。 What do we learn about Kaggle companies winning programs?D) They could grade high-school essays just like human teachers。Question 18。 What is the fundamental limitation on

46、 machine learning?C) It has to rely on huge amounts of previous data。lecture 2weve talked recently about the importance of sustainable energy。 Weve also talked about the different theories on how that can be done。 So far， our discussions have all been theoretical。 Now I have a practical question for

47、 you all。 Can you run a 140，000 kilogram train on just the steam generated by solar power? Well， one engineer， Tim Casselman， believes its possible。 And his home city of Sacramento， California should see the technologys first test as part of the upgrading of its rail yard。 Casselman， who is an inven

48、tor and self-proclaimed steam visionary， is campaigning for a new steam train that runs without any fire and could run on an existing 10 kilometer line drawing tourists and perhaps offering city commuters a green alternative to their cars。 Casselman wants to build an array of solar magnifying mirrors at one end of the line to collect and focus heat onto water filled tubes。 This would generate steam that could be used to fill tanks on a small steam train without the u