Read the article and select the best answer. Article: You either have it, or you don't-- a sense of direction, that is. But why is it that some people could find their way across the Sahara without a map, while others can lose themselves in the next street? Scientists say we're all born with a sense of direction, but it is not properly understood how it works. One theory is that people with a good sense of direction have simply worked harder at developing it. Research being carried out at Liverpool University supports this idea and suggests that if we don't use it, we'll lose it. "Children as young as seven have the ability to find their way around," says Jim Martland, Research director of the project. "However, if they are not allowed out alone or are taken everywhere by car, they never develop the skills." Jim Martland also emphasizes that young people should be taught certain skills to improve their sense of direction. He makes the following suggestions: If you are using a map, turn it so it relates to the way you are facing. If you leave your bike in a strange place, put it near something like a big stone or a tree--something easy to recognize. Note landmarks on the route as you go away from your bike. When you return, go back along the same route. Simplify the way for finding your direction by using lines such as streets in a town, streams, or walls in the countryside to guide you. Count your steps so that you know how far you have gone and note any landmarks such as tower blocks or hills which can help to find out where you are. Now you will never get lost again! Question: What is TRUE of 7-year-old children according to the passage? Options: A: They never have a sense of direction without maps. B: They should never be allowed out alone if they lack a sense of direction. C: They have a sense of direction and can find their way around. D: They can develop a good sense of direction if they are driven around in a car.
B

Read the article and select the best answer. Article: The new iPhone 3G should please everyone . Its look and feel are only slightly improved, but a faster network loads Web pages more quickly , true GPS functionality allows it to easily find places nearby , and the new $199 price(down from $400) makes it an affordable luxury. Before deciding whether to buy, however , make sure you can actually take advantage of the iPhone 3G's high-speed data network. 3G stands for third-generation , which in non-geek speak translates to Web pages and mail messages that, ideally, load about three times faster than on the original iPhone. Even better, 3G coverage enables you to make a phone call and surf the Web at the same time . That's great, if you live or work in a place where the 3G network of AT&T (the sole wireless carrier of the iPhone) is active. That's not so great in cities like New York where AT&T's cellular coverage is awful. As one of my colleagues in New York City, who bought the original iPhone , commented , "It's just a toy . You can't make phone calls on it, so I carry my Verizon phone with me all the time." The real fun begins when you tap on the icon called "Apple Store" and start browsing the hundreds of add-on applications that have been developed just for the iPhone. You will find tons of games (I like JirboBreak , a free game inspired by the Atari classic Breakout ) and mobile version of popular websites like Pandora , Facebook , MySpace and the New York Times . Most apps will cost you , but the vast majority are $9.99 or less. The apps work on the old iPhone too, but you'll enjoy them a lot more on the iPhone 3G because many of the programs , including Yelp(local business reviews ), Whrrl (mobile social networking) and UrbanSpoon(restaurant reviews), use you exact location --- provided by the iPhone 3G's GPS chip --- to make recommendations. The apps also load much faster over the 3G network. Question: . From the passage we know that the attitude of the author toward iPhone 3G is _ . Options: A: doubtful B: appreciate C: optimistic D: pessimistic
B

(Question)
Read the article and select the best answer. Article: Sales of electric bicycles, or e-bikes, a hot item in consumer green tech, are expected to grow by more than 50% in North America during 2013. Actor William Shatner, who is no stranger to futuristic tech, recently purchased two e-bikes for him and his wife. I've been shopping for an e-bike now for a few weeks, and I've had my eye on the folding electric bike. I've had folding bikes in the past and love the convenience of being able to throw my bike into my car. The e -bike market is ready to go mainstream in the U.S. The price for e-bikes has come down greatly in recent months. At one time, most e-bikes with good components and proper weight were in the $3,000range. Now you can find reasonable quality e-bikes in the $1,000range. With gas prices at all-time highs, e-bikes are an attractive, low-cost option to gas efficient vehicles. E-bike owners are finding that they are great for commuting to work, as traditional bikes can be a problem with office dress and sweat. People who use e-bikes range from commuters to casual cyclers who like a little help with hills and wind,to those who decided to save money on buying a motor bike.These are not for the serious road cycler or professional mountain biker. If you're considering all e--bike, it pays to do some research first.Cheaper e-bikes are going to be heavier and have less battery--power.Higher priced bikes will be made from lighter materials and have better batteries. Another consideration is local motor vehicle laws.For example,according to US federal law,as long as your electric bike is under 750 watts and does not go over 20 MPH then it is a bicycle and not a motor vehicle.Most consumer e--bikes in the $1,000 range don't fit the motorized vehicle description. Question: The writer introduces William Shatner as an example in order to _ . Options: A: show that he is wild about the future technology B: tell us that he is an agent for the e--bike market C: tell us that actors care only convenience no the price D: show that e-bikes are really becoming popular now
(Answer)
D