Question: *Question*
As you dash outdoors in the middle of winter, you might make it halfway down the block before realizing that your ears are freezing because you forgot your hat. Now, scientists have shown that even though you've had an apparent memory lapse , your brain never forgot what you should have done. Ww w.ks 5u.c om  Memory works mainly by association. For example, as you try to remember where you left your keys, you might recall you last had them in the living room, which reminds you that there was an ad for soap on television, which reminds you that you need soap, and so on. And then, as you're heading out of the door to buy soap, you remember that your keys are on the kitchen counter. Your brain knew where the keys were all along. It just took a round-about way to get there. Now, scientists at the Salk Institute for Biological Studies are studying associative memory in monkeys to figure out just how this complicated process works. First, the researchers trained a group of monkeys to remember arbitrary  pairs of symbols. The researchers showed the monkeys one symbol(cold weather) and then gave them the choice of two other symbols, one of which (a hat) would be associated with the first. A correct choice would earn them a sip of their favorite juice. Most of the monkeys performed the test perfectly, but one kept making mistakes. "We wondered what happened in the brain when the monkey made the wrong choice, although it apparently learned the right pairing of symbols," said study leader Thomas Albright. Albright and his team observed signals from the nerve cells in the monkey's inferior temporal cortex (ITC), an area of its brain used for visual pattern recognition and for storing this type of memory. As the monkey was deciding which symbol to choose, about a quarter of the activity in the ITC was due to the choice behavior. www.ks5u.com Meanwhile, more than half the activity was in a different group of nerve cells, which scientists believe represent the monkey's memory of the correct symbol pairing, and surprisingly,... The example of the keys and soap is given to explain the relationship between   _  . A) memory lapse and human brain B) memory and association C) memory and television ads D) memory and our daily life
**Answer**
B

*Question*
Being able to count at least ten people as friends makes us happy, but those with five or fewer are likely to be miserable, researchers say. Their study of hundreds of men and women also found t hat people who feel satisfied with their lives always have lots of close friends and regularly make new ones. While it is not clear whether our friends make us happy or we make friends because we are happy, the researchers say it is clear that we should maintain our friendships. Psychologist RichardTunney said, "Whatever the reason is, actively working on friendships in the same way as to maintain a marriage is a prerequisite  to happiness. "Dr. Tunney, of Nottingham University, quizzed more than 1,700 people about their satisfaction  with their lives and the state of their friendships. Those with five friends or fewer had just a 40 percent chance of being happy.  In other words they were more likely to be unhappy than happy. Ten was the first number at which people were more likely to be happy than unhappy. The happiest people were those with dozens of friends, according to the study, which was carried out for the National Lottery . For women, this meant having 33 friends;for men, the number was 49. Dr. Tunney said,"People who were extremely satisfied with their lives had twice the number of friends of people  who were extremely dissatisfied. " Women tended to have fewer friends than men but formed tighter relationships. Interestingly, the study found that childhood friends are no more likely to make us happy than people we become close to later in life. Lottery winners, however, have a differentopinion on life. They are always happier than others despite spending their time with asmall circle of old friends. This could be because they trust people they've known for along time. Which of the following opinions may Richard Tunney NOT agree with? A) People with few friends are sure to be unhappy. B) Our friends can make us happy. C) Happiness may come from a good marriage life. D) We may become happier if we have more friends.
**Answer**
A

*Question*
Zipped into a bag, it looks like a large umbrella. Unfolded, it goes along the street like any other bicycle. It's the "A-bike", the brainchild   of British inventor Sir Clive Sinclair, who made history in the 1970s by developing the world's first pocket calculator. He described his new invention as "the world's smallest, lightest foldable bicycle". "My original thought was that if you could have a bicycle that was dramatically lighter and more firm than the ones that exist today, it would change the way in which bicycles are used,"said Sinclair. The mini-bike, showed in Singapore last week and set to go on sale worldwide in 2005 at a price of nearly US$300, is built for riders as heavy as 112 kilograms and is height-adjustable . It takes about 20 seconds to fold or unfold. Its wheels are a quarter the size of those on a regular bicycle, but Sinclair promises a smooth ride for most cyclists. "You require no extra energy to ride the A-bike and it can go up to 15 miles per hour (24 kilometers per hour)," he said. Constructed mainly of plastic, the 5.5-kilogram bicycle folds into a package of less than 0.03 cubic meters  . Sinclair also invented the first pocket TV in 1984 and the futuristic C5 electric tricycle in 1985. He said he hoped the bicycle would attract common citizens, officials, campers or anyone needing transport for a short trip and he said the next step for the A-bike was to add an electric motor in a few years. The most important character of this kind of bike is its    _    . A) big size B) light weight C) beautiful appearance D) foldable structure
**Answer**
D

*Question*
One of the major functions of an iPhone is, of course, to play music. The iTunes app has been designed in such a way as to take advantage of the iPhone's touch screen. But what if you want to listen to music that isn't in your iTunes library, or you want to discover new music without sitting in front of computer? There are plenty of ways to access music, but not everyone knows what options are available. Either that, or there are so many options that going through all of them is tiring. For these reasons, here we offer a few convenient ways of listening to music on your iPhone without using iTunes. Stream some radio (Tuneln Radio) Tunnel Radio provides a quick and easy way to listen thousands of Internet radio stations on your Apple products. In addition to local radio stations, this app compiles more than 40 000 radio stations from around the country. What makes the app special is that it allows you to pause and rewind live radio----pause your station to take a phone call or rewind to replay a favorite song. You can also browse by genre of location, and the app includes plenty of talks, news, sports and weather stations in addition to music. From desktop to smartphone (QQ Music) QQ Music seems like obvious choice, and it is. It's a streaming service based on the Tencent technology that is already wildly popular on the Internet and now also offers a (free) app. Through this app you can listen to existing playlists or create new ones based on the patterns of music you like. It works amazingly well and everything can be saved to your QQ account for access from a computer. What was that song? (Shazam) Shazam is an innovative and free app that cures your"what was that song?"problem. It happens to all of us : we hear a song (on TV or in a store ), love it, know we have heard it before but just can't remember what it is called . With Shazam you don't need to. Just hold your iPhone up and through its microphone, Shazam will identify the album, artist and song title for you. You can then either purchase the song in... What is possibly the best title for the passage? A) Beyond the Music B) Streaming Service of Music C) Get easier accesses to music D) Get Familiar t o Each Song
**Answer**

Answer: C