题目
题型：不详难度：来源：
The HD-TV also has clear sound. It is like the sound on a CD. All these improvements make an HD-TV very costly. One kind in Japan now sells for more than twenty thousand dollars .A major problem with the HD-TV is its broadcast signal（传播信号.The signal is bigger than normal because it carries more electronic information.
小题1: What is the main difference between an HD-TV and a normal television? It is .
| A．the picture | B．the shape | C．the voice | D．the weight |
| A．It is made up of thousands of red, green, and blue points. |
| B．Points are organized in lines that go across the TV screen. |
| C．It is a black and white picture |
| D．Both A and B |
| A．Over 250 | B．More than 500 |
| C．More than 1,000 | D．About 250 |
A. You must have the bigger signal for the HD-TV.
B. You have to get a big screen.
C. You should have a compact disc player.
D. Both A and B.
答案
小题1:A
小题2:D
小题3:C
小题4:D
解析
试题分析：本文介绍了一种新型的电视HD-TV的特点和具体的数据。
小题1:A 细节题。根据文章第一段2,3行The main difference between an HD-TV and a normal television is the picture.说明最大的差别在于图片，故A正确。
小题2:D 细节题。根据第一段5,6,7,8行Every color television picture contains thousands of red, green and blue points. They all come together as an image in the eye of the person watching. The points are organized in lines that go across the television screen. There are more than five hundred lines in a normal television.说明AB两项都是彩电的特点，故D项正确。
小题3:C 细节题。根据第一段7,8行There are more than five hundred lines in a normal television. The HD-TV has two times as many.可知一般的彩电是5万多条线，而HD-TV是其两倍，也就是1万多条，故C正确。
小题4:D 细节题。根据第一段倒数第二句To get this clear picture, you must have a big screen.
和第二段最后一句The signal is bigger than normal because it carries more electronic information.可知AB两项都是正确的。故D正确。
点评：本文介绍了一种新型的电视HD-TV的特点和具体的数据。考查科普类短文阅读，此类文章的最大的障碍是词汇以及考生对阅读内容的不熟悉，需要考生在阅读的时候有足够的耐心。要养成在上下文串联中猜测词义的能力，根据上下文中出现的同义词，近义词，反义词，以及词义的解释来理解生词。同时要抓住文章的中心，不要受其他信息的影响。要根据题目及选项以及文章的上下文串联合理的判断推理。
核心考点
试题【In the near future, people in some parts of the world will watch a new kind of t】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Five Smart Habits of Successful Children
Have you ever wondered what actions make the most difference in your children"s lives?
Children don"t have to be smart to succeed. They don"t have to be born rich and famous. All they need is the right outlook and a few smart habits.
Successful children make friends wherever they go. Children who learn to get along with others from an early age are more successful in life. 1 Without them, we"d have no support. Whatever the goal is, friends are needed to achieve it. Do your children a favor by encouraging social interaction early.
2 They don"t just hope for success; they are certain of it. They don"t complain. They have a smile on their face and get on with the business of living. They feel pain just like the other children. The difference is that they don"t let it hinder(妨碍) their progress.
Successful children become successful because they never give up. They fall. They fail. 3 The difference is that they use their mistakes the way they were intended. They embrace failure because it pushes them forward.
Successful children ignore the naysayer (反对者). They don"t worry about what other people think. They follow the path that is right for them, regardless of gossip. 4 They are too busy working towards their goals. They do have concern for the feelings of others.
Successful children share their success. They don"t forget all the people who helped them get where they were going. 5 They don"t criticize（批评）and reject（抛弃） those who are struggling. They take them by the hand and guide them up the ladder.
| A．Do you want to be a successful child? |
| B．Social skills are vital（重要的） to human survival. |
| C．Successful children look on the bright side. |
| D．They make just as many mistakes as the other children. |
F. They don"t engage in gossip either, because they don"t have time for it.
G. In fact, they don"t even have to become rich and famous.
Some scientists believe that birds do sing some of the time just because they are happy．However，they sing most of the time for a very different reason．Their singing is actually a warning to other birds to stay out of their territory
Do you know what a “territory” is? A territory is an area that an animal，usually the male，claims(声称)as its own．Only he and his family are welcome there．No other families 0f the same species(物种)are welcome．Your yard and house are your territory where only your family and friends are welcome．If a stranger should enter your territory and threaten you，you might shout．Probably this would be enough to frighten him away．
If so，you have actually scared the stranger away without having to fight him．A bird does the same thing。But he expects an outsider almost any time，especially at nesting(筑巢) season．So he is screaming all the time，whether he can see an outsider or not This screaming is what we call a bird’s song，and it is usually enough to keep an outsider away．
Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs．
You can see that birds have a language all their own．Most of it has to do with attracting mates and setting up territories．
小题1:Some scientists believe that most of the time birds’ singing is actually．
| A．an expression of happiness |
| B．a way of greeting |
| C．an expression of anger |
| D．a way of warning |
| A．A place where families of other species are not accepted． |
| B．An area which a bird considers to be its own |
| C．an area for which birds fight against each other． |
| D．A place where a bird may shout at the top of its Voice． |
| A．Because they want to invite more friends |
| B．Because their singing helps get rid of their fears． |
| C．Because they want to find outsiders around． |
| D．Because their singing helps frighten outsiders away． |
There are no shortcuts to succeed in language learning. A good memory is a great help, but it is not enough only to memorize the rules from a grammar book. it is not much learning by heart long lists ( 一览表 ) of words and their meanings, studying the dictionary and so on. We must learn by using the language. If we are pleased with a few rules we have memorized, we are not really learning the language. We must "learn through use". Practice is important. We must practice speaking and writing the language whenever we can.
小题1: the most import things to learn a foreign language are
| A．understanding and speaking |
| B．listening,speaking,reading and writing |
| C．writing and understanding |
| D．memorizing and listening |
| A．he doesn’t understand the language when he hears it spoken |
| B．he doesn’t have a good memory. |
| C．he always remembers lists of words and their meanings |
| D．he often hesitates to practice speaking it. |
| A．a good memory. | B．speaking. |
| C．practice. | D．writing. |
| A．we use a language in order to learn it |
| B．we learn a foreign language in order to use it |
| C．we can learn a language well while we are keeping using it |
| D．both b and c. |
The largest study of the effects of ageing(变老) on the heart has found that women’s longevity may be linked to the fact that their hearts do not lose their pumping power with age.
“We have found that the power of the male heart falls by 20-25 percent between 18 and 70 years of age,” said the head of the study, David Goldspink of Liverpool John Moores University in the UK.
“Within the heart there are millions of cells that enable it to beat. Between the age of 20 and 70, one-third of those cells die and are not replaced in men,” said Goldspink. “This is part of the aging process.”
What surprises scientists is that the female heart sees very little loss of these cells. A healthy 70-year-old woman’s heart could perform almost as well as a 20-year-old one’s.
“This gender difference might just explain why women live longer than men,” said Goldspink. They studied more than 250 healthy men and women between the ages of 18 and 80, focusing on healthy persons to remove the confusing influence of disease. “The team has yet to find why ageing takes a greater loss on the male heart,” said Goldspink.
The good news is that men can improve the health of their heart with regular exercise. Goldspink stressed that women also need regular exercise to prevent their leg muscles becoming smaller and weaker as they age.
小题1: The underlined word “longevity” in the second paragraph probably refers to “________”.
| A．health | B．long life | C．ageing | D．effect |
| A．men’s heart cells | B．women’s ageing process、 |
| C．the gender difference | D．hearts and long life |
| A．women have more cells than men when they are born |
| B．women can replace the cells that enable the heart to beat |
| C．the female heart loses few of the cells with age |
| D．women never lose their pumping power with age |
| A．enable your heart to beat much faster |
| B．find out the reason for ageing |
| C．exercise regularly to keep your heart healthy |
| D．prevent your cells from being lost |
| A．the reason why ageing takes a greater loss on the male heart has been found out |
| B．scientists are on the way to finding out why the male heart loses more of the cells |
| C．the team has done something to prevent the male from suffering the greater loss |
| D．women over 70 could lose more heart cells than those at the age of 20 |
The images were striking. Homes on the East Coast were washed away by Superstorm Sandy. People were in tears, picking up faded photographs, among their only remaining possessions.
If that doesn’t move you to get serious about safekeeping your lifetime of memories, what will? The digital age offers tools never imaginable before—including one-click access to a lifetime of family photos.
Here is a brochure on how to back up (存) your photos and save them online, where they can live forever and be accessible in good times and bad.
Scanning
The first step for those old photos is to scan them and save them to a digital format. Most printers come with scanners these days, so that’s an easy but extremely time-consuming step.
Storing the photos
With your scans in place, import the photos into your computer, and back them up.
You could make multiple copies of the disks and spread them to loved ones. Or you could choose external(外接的) hard drives or USB thumb drive, and add your photo and video collection from your computer.
Online backup
If you need lots of space, look at a pure online backup service, Caronite.
Caronite backs up 300 million files daily. Once you sign up, it starts to pick up everything you have on your hard drive. But photo collection on your computer’s main hard drive charges for $59 a year.
Cloud Storage
For folks who don’t need automatic backup, but instead want to take a more active approach, Dropbox, Google Drive and Microsoft’s SkyDrive let you store files online by yourself, share and instantly access them. All offer free options—2GB of free storage for Dropbox, 5GB for Google and 7GB for SkyDrive. But if you want more, you need to pay.
Bottom Line
The hard drive or flash drive is the cheapest and easiest. But drives can fail. Online services are more expensive, but more secure. With more of us switching back and forth between our computers, such services are the best way to get access to our data from wherever we are.
小题1:Why does the author mention Superstorm Sandy?
| A．To tell the background of the scanning photos. |
| B．To attract the readers’ interest in the backups. |
| C．describe a severe natural disaster. |
| D．To win the readers’ sympathy. |
| A．Scanning photos takes little time but costs a lot. |
| B．Caronite charges for backing up photos from hard drive. |
| C．Google Drive offers unlimited free photo storage on line. |
| D．The hard drive or flash drive is the cheapest and safest. |
| A．Caronite. | B．Dropbox. | C．SkyDrive. | D．Flash drive. |
| A．tell real stories about storage services |
| B．introduce some of the storage services |
| C．describe the functions of storage services |
| D．argue about the advantage of storage services |
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