题目内容

4.From VOA Learning English,this is the Technology Report.
Researchers are now using three-dimensional,or 3D printing to create models of the human heart to help heart specialists.The heart doctors can use the models to better help patients before an operation.
Surgeons regularly use digital images to explore the heart in close detail.But no two human hearts are alike.This led Matthew Bramlet to create exact heart models from those images.Dr.Bramlet is a pediatric or children's heart expert at the University of Illinois College of Medicine.He says the 3-D models show information he cannot get any other way.
A 3-D printer uses images from a digital display to create a physical model of a human heart.Matthew Bramlet says doctors can use the model,in his words,"to understand the anatomy for the first time.""Even when I will take the MRI and render the images,even a print heart that is sort of spinning on the screen,it's still a 2-D screen.Now we've pulled it out of the screen so that you can actually hold it in your hand arid evaluate the anatomy for the first time in a manner that makes sense and is logical."
Pictures from medical tests like CAT scan or MRI are sent to a 3-D printer to create a heart in a plaster or clay form.The printer then constructs the heart,thin layer by thin layer.Dr.Bramlet says the model matches the real heart in every detail."When we're done with the model and make our decision,we want to be able to go back to the source image and confirm those findings,"he says.
Dr.Bramlet has built model hearts for different kinds of heart operations.All of the operations were successful.In his first ease,digital images showed only one tiny hole in a baby's heart.But,the 3-D printed model showed several defects or problems that the baby was born with.Dr.Bramlet says those defects could not be seen easily in the images.The heart surgeon was able to change the type of surgery for the patient based on the 3-D model.He added that 3-D heart models save time during heart operations.
Kathy Magliato is a cardiac surgeon at Saint John's Health Center in Los Angeles.She welcomes the new technology.She says it could help her make better decisions before she operates on the hearts of her patients."The fact is that I can then take this very complicated structure,which has endless possibilities of what it could look like anatomically when I open body,and you give it to me before the operation and I can hold it in my hand and plan an operation around what I'm seeing,touching and feeling.That to me is what can potentially change the game in an operation and save lives.
Matthew Bramlet continues to research the technology.He is working with the National institutes of Health to build a 3-D library that includes heart models and images that others can use.

67.As a helper to surgeons,what's the major advantage of 3D-printing?D
A.It can be applied to different kinds of operations.
B.It can provide digital images in detail.
C.It can shorten time during heart operations.
D.It can create a heart model with detailed information.
68.What do we know about the 3-D printed heart model?C
A.It is shaped in one step.
B.it can only be made of clay.
C.It is based on medical tests.
D.It can only be observed on the screen.
69.What does the underlined sentence in the last but one paragraph imply?D
A.Any change may happen in an operation.
B.Any change in an operation can't be ignored.
C.A 3-D printed heart model is a change to a regular operation.
D.A 3-D printed heart model may contribute to adjustment to an operation.
70.What could be the best title for the Technology Report?C
A.Advantages of 3D-printing
B.Features of 3D-printing
C.A new dimension to heart surgery
D.A fundamental reform to heart surgery.

分析 本文主要讲述了研究人员目前正在使用三维,或者3D打印技术创造的人类心脏模型帮助心脏专家,手术之前心脏医生可以使用模型来更好的帮助病人.

解答 67.D 根据文章第三段可知3D-printing的主要优点是"能制造出含有详细信息的心脏模型". C不是主要优点.
68.C 根据第五段第一句可知medical tests是"基础";有plaster or clay两种形式,可知B错误.根据第五段第二句可知模型是一层层制成,因此A一步成型是错误的.
69.D That指的是a heart model,potentially意为"潜在地,可能地",因此该句的意思是"心脏模型对于我就是可能改变手术进程从而挽救生命的东西".
70.C 文章主要讲述运用3D打印技术对心脏手术带来的变化.A、B标题过大,本文只是这项技术在心脏手术这一个方面的应用.D.fundamental不正确.C不仅能总结文章的主旨大意,而且一语双关:a new dimension既是指3D相对于2D,增加了一维,又指为心脏手术开拓了新的层面.

点评 本文是一篇社会文化类阅读理解,题目涉及多道细节理解题,做题时结合原文和题目有针对性的找出相关语句进行仔细分析,结合选项选出正确答案.推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案,切忌胡乱猜测,一定要做到有理有据.

练习册系列答案
相关题目
14.TAIBEI-Increasing numbers of Taiwanese students are joining the island's"China rush",seeking education on the Chinese mainland.
According to official Chinese figures,the number of Taiwanese students admitted into college and postgraduate(研究生)programs on the mainland totaled 1461 in 2006,1928 in 2007 and 1839 in 2008.Although no latest official numbers were available,Netbig.Com said this number had risen between 30 to 50 percent annually in the past two years with over 2000 entering mainland campuses last year.
The Internet site,based in the Chinese city of Shenzhen,provides education service and information on Chinese mainland college and universities."Many Taiwanese believe a Chinese education giving more knowledge about the people and culture in the mainland will increase their chances in the Chinese job market",Nethig.Com vice-president Ingrid Huang said."I believe it will give me hands-on experience in the business field on the Chinese mainland and a better understanding of the Chinese mainland people,"said Lydia Chang,a 19-year-old student majoring in journalism at Shih Shin University.Chang plans to go on to get a master's degree in business administration in Shanghai,which she says offers the best environment for such studies.
A journalism graduate student,surnamed Lin,at the National Taiwan University said he would like to study law on the Chinese mainland since"there will be better career prospects now that more Taiwanese companies are going there"."They hope the children could build up connections which could later become useful in their business operations,"said Yang Ching-yao,professor of the Chinese mainland studies.A Netbig.Com survey showed the campuses favored by Taiwan students included Beijing,Qinghua and Renmin universities in Beijing,and Jinan and Zhongshan universities in Guangzhou.The most popular studies were law,business and Chinese medicine.
At present,Chinese Taibei doesn't recognize diplomas earned on the Chinese mainland nor help with any inquiries about studying there.But recognizing the trend,education authorities are giving a final form to a policy accepting certificates from selected universities.
63.Why do more Taiwanese students study on the Chinese mainland?D
A.Because the fees asked for are lower than those of Taiwan.
    B.Because Taiwan will reunite with the mainland sooner or later.
    C.Because there are many famous universities for them to choose.
    D.Because what they have learned on the mainland will bring them a bright future.
64.The underlined word"it"in the third paragraph meansD.
    A.Netbig.Com                         B.the university
    C.the Chinese job market              D.a Chinese education on the mainland
65.The purpose of the article is to tell usA.
    A.more Taiwanese students are going to universities on the mainland
    B.Taiwan and the mainland should cooperate with each other in every field
    C.education on the mainland is more attractive compared with that of Taiwan
D.the number of Taiwanese students studying on the mainland has been decreasing
66.Which of the following is true according to the passage?C
    A.Education of Taiwan is far behind the mainland.
    B.Chinese Taibei recognizes diplomas earned on the Chinese mainland.
    C.Chinese Taibei doesn't help with any inquiries about Taiwanese studying on the mainland.
    D.The number of Taiwanese students who go to study on the mainland will certainly be increasing in the near future.
12.Most book reviews start with a heading that includes all the basic information about the book,like:
Title.
Author.
Place of publication; publisher,date of publication.
Number of pages.
Like most pieces of writing,the review usually begins with an introduction that lets your readers know what the review will say.The first paragraph usually includes the author and title again,so your readers don't have to look up to find this information.You should also include a very brief description of the contents of the book,the purpose or audience for the book,and your reaction and evaluation.
Then you move into a section of background information that helps place the book in context and discusses criteria for judging the book.Next,the review gives a summary of the main points of the book,quoting(引用) and explaining key phrases from the author.Finally,you get to the heart of your review-your evaluation of the book.In this section,you might discuss some of the following issues:
how well the book has achieved its goal
what possibilities are suggested by the book
what the book has left out
how the book compares with others on the subject
what specific points are not convincing
what personal experiences you've had related to the subject.
It is important to use labels to carefully distinguish your views from the author's,so that you don't confuse your reader.
Then,like other essays,you can end with a direct comment on the book,and tie together issues raised in the review in a conclusion.
There is,of course,no set form,but a general rule is that the first one-half to two-thirds of the review should summarize the author's main ideas and at least one-third should evaluate the book.

56.What is the most important part of a book review?B
A.The heading.      B.The evaluation.
C.The conclusion.   D.The introduction.
57.It can be confusing to readers ifC.
A.there is no heading in a book review
B.the book has achieved its goal
C.the viewer's point of view is not distinguished from the author's
D.the book is compared with others on the same subject
58.What is NOT suggested for a book review in this passage?C
A.Quoting from the author of the book.
B.Providing some book information.
C.Analyzing only the author of the book.
D.Comparing the book with others of a similar subject.
59.The best title for this passage is"B".
A.Steps to follow
B.Tips for writing a book review
C.The way to develop your idea
D.Things not to be avoided in a book review.
9.Electronic book publishing has many of the same risks and opportunities as electronic music publishing.By delivering text direct to the reader's computer screen,the e-book could cut down costs,and allow creators to deal directly with their audience,by passing(绕开)traditional publishers and traders.But it also raises the possibility of mass piracy(盗版).Phil Rance,founder and managing director of Online Originals,a London-based e-book publisher,sums it up,"No one wants Napster(在线音乐服务)to happen to books."
Indeed,the most popular MP3may have put the frighteners on an industry that generally operates some way behind the"bleeding edge".The Meta Group,a leading US-based market researcher,says publishers are far too concerned about protecting their rights,"We believe all the recent legal control over Napster is like putting a finger in a river that is already overflowing.Publishers need to deal with reality and come up with new ways to develop wide electronic distribution,asking the question:How can we use the certainty of wide distribution to our advantage?"
At the moment,most publishers would like to limit the use of e-books to the person who bought them,or to the computer used to download them.If that can be done,e-books become just an extra income stream in a publishing industry that would continue to operate the way it does today,according to Terry Robinson,business manager for Adobe's e-paper group."If you've cracked the digital rights aspect,you've cracked the market."He says.
Robert Nichols,Books Director at BOL agrees,"Rights management is absolutely important.Publishers just say that‘until copyright is secure,we are not going to talk'."

12.According to the text,what is the similarity of e-books to electronic music?D
A.They both avoid industry management.
B.They both result in piracy.
C.They both bring in much money to creators.
D.They both lead to price reduction.
13.From the text,we can infer thatC.
A.wide use of e-books may increase the income
B.the publishing markets should be brought back to normal
C.publishers haven't agreed on rights management up to now
D.most publishers prefer e-books for the extra income
14.What do publishers care most about e-books?B
A.Price.
B.Copyright.
C.Quality.
D.Design.
15.Which of the following can be the best title for this text?A
A.The E-book--a New and Big Challenge
B.The E-book--an Extra Income Stream
C.An Economic Rise from E-books
D.Changes Brought by E-books.
13.As a child,I was really afraid of the dark and of getting lost.These fears were very real and caused me some uncomfortable moments.
Maybe it was the strange way things looked and sounded in my own room at night that scared me so much.There was never complete darkness,but always a streetlight or passing car lights,which made clothes on the back of a chair take on the shape of a wild animal.Out of the corner of my eye,I saw the curtains(窗帘) seem to move when there was no wind.A very low sound in the floor would seem a hundred times louder than in the day.My imagination (想象) would run wild,and my heart would beat fast.I would lie very still so that the"enemy(敌人)"would not discover me.
Another of my childhood fears was that I would get lost,especially on the way home from school.Every morning I got on the school bus right near my home.That was no problem.After school,though,when all the buses were lined up along the street,I was afraid that I would get in the wrong one and be taken to some other strange places.On school or family trips to a park or a museum,I wouldn't let the leaders out of my sight.
Perhaps one of the worst fears of all I had as a child was that of not being liked or accepted by others.Being popular was so important to me then,and the fear of not being liked was a serious one.
One of the processes(过程) growing up is being able to realize and overcome our fears.Understanding the things that scared us as children helps us achieve greater success later in life.
52.The author hadCkind(s) of fears when she was a child.
A.one         
B.two        
C.three        
D.none
53.When she went to some other places,she wouldC.
A.walk away without others        
B.take a bus by herself
C.follow others closely              
D.make sure not to take a wrong bus
54.Which of the following would be possibly true when she was a child?A
A.She was usually popular among people.
B.She was always the leader of the others.
C.She always got poor grades.
D.She was not at all liked by others.
55.The underlined word"overcome"in the last paragraph means"D"in Chinese.
A.接受      
B.忍受   
C.信服     
D.克服.

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网