Modern smart phones are fast becomingthe must-have item. But what's in store for the next generation of smart phones?

    Tired of carrying around that heavy wallet? Soon you won't need to! The next generation of smart phones will have NFC technology, which lets you pay for things with your smart phones. All youdo is enter your credit card information into your phone. Then, when you are ina shop that allows NFC payments, you just wave your phone over a special instrument at the checkout. The purchase is instantly charged to your creditcard.

    Ever seen someone wearing something and wished you knew where to get it? Soon it will be easy with PicCommerce, new technology that uses image-recognition software. Here's how it works. If yousee something you like, simply take a photo of it with your smart phone. Then, your phone will send the image to a special server, which will respond with information about where you can buy it and how much it will cost.

    Sick of your smart phone battery going flat? With so many applications draining (消耗) the battery, the latest phones need tobe charged every day. But next generation smart phones will come with built-inchips that can connect to an antenna (天线) in your home. And as long as your phone is within range of the antenna, you will be able to charge your smart phone wirelessly, even if it is in your pocket.

    Worried about getting your smart phoneswet in the rain? A company called Hz0 has invented Water Block, new technologythat makes your phone completely water proof. And it's so effective that your phone will even work under water.

    Fed up with carrying a heavy phone around? Soon, you will be able to get a Paper Phone! “Flexible phones are the future,” said scientist Roel Vertegaal. So, what are the benefits of flexible phones? Well, it means that instead of carrying your phone in your pocket, you could wear it wrapped around your wrist, for example.

    Of course, there is just the problem: with so much new smart phone technology around, you will soon need to buy a newphone!

阅读下列短文：从每题所给的 A、B、C、D 四个选项中，选出最佳选项，将正确的选项涂在答题卡上。

Is there link between humans and climate change or not? This question was first studied in the early 1900s. Since then,many scientists have thought that our actions do make a difference. In 1997,the Kyoto Protocol explained our role in the Earth's changing atmosphere and set international limits for gas emissions(排放) from 2008to 2012. Some countries have decided to continue these reductions until 2020. More recently, the Paris Agreement, stuck by nearly 200 countries, also aims tolimit global warming. But just now how much warmer it will get depends on how deeply countries cut carbon emissions.

    For more than twenty years scientists have been searching for signs of life on other planets. Most of these searches have been done over the radio. The hope is that someone in outer space may be trying to get in touch with us. Scientists also have sent radio and television messages on spaceships traveling through space, on the chance that someone may be receptive （善于接受的） to such messages.

    Scientists are using powerful radio telescope to listen to signals from about 1,000 stars, all within 100 light years of earth. In addition, they will scan (扫视) the entire sky to “listen” for radio messages from more distant stars. Using a computer, they will be able to monitor more than eight channels at one time. Scientists are looking for any signal that stands out from the background noise.

    Of the 200 billion stars in the Milky Way galaxy （银河星系）, scientists find that five percent are like our sun. Perhaps half of them have a planet like earth. Such a planet would be a reasonable distance from the star for temperatures to be right for the evolution of life. Based on the inhabitable (that can be lived in) planets in our galaxy, most scientists agree that chances are likely that one or more of these planets support some life.

    However, many scientists wonder whether intelligent （有智力的） life exists on other planets. Some believe that twenty years of searching without any intelligible （可理解的） messages shows that no one is out there. They say that the evolution of intelligence comparable to ours is unlikely.

    Other scientists believe that our search hasn't been long enough to rule out the possibility that intelligent life exists in our galaxy. Although our sun family in only about five billion years old,  our galaxy is about 20 billions years old. In that time, some scientists think it is likely that civilizations are much more advanced than ours. Perhaps these civilizations send us no signals; perhaps we have not recognized the signals they have sent us. If we hope to find intelligent life, these scientists believe that we have to keep looking.

    A new book called “Battle Hymn of the Tiger Mother” by Amy Chua has caused a debate (争论) about cultural differences in parenting. Amy Chua is a teacher in an American university and both of her parents are Chinese. In the book, Ms. Chua writes about how she taught her daughters. She told NBC television that she had a clear list of what her daughters were not allowed to do, such as having a play date, watching TV or playing computer games and getting any grade less than an A.

    Many people are against Amy Chua's parenting style (风格), even her husband, who is American. They say it is rude and unfair to children. But she says her parents raised her and her three sisters in that way.

    Ms. Chua says after her younger daughter shouted “I hate my life! I hate you!” she decided to retreat because she was afraid of losing her daughter. But she also says American parents often have low expectations of their children's abilities.

    “The debate is about what it means to be a successful parent and what it means to be a successful child,” said Stacy DeBroff, who has written four books on parenting. She says Amy Chua's parenting style is not limited to Chinese families. It is a traditional way of parenting among immigrants (移民). They hope to get a better future for their children.

    She also sees a risk (风险). When children have no time to be social or to develop their own interests, they might not develop other skills that they need to succeed in life. DeBroff advises parents to develop their own style of parenting and not just repeat the way they were raised.

    To a growing number of US students in China, study in the ancient country is no longer just a cultural experience it has become an important part of their future professional careers.

    Sam Gor, a 26-year-old student from Santa Clara, a county near San Francisco, said the purpose of his studies in Beijing was to help him find a good job when he goes back to the United States. "Culture matters," he said. "But more importantly, to learn Chinese and get a better understanding of the country may help me professionally." As a new student at Beijing Language and Culture University (BLCU), Gor hopes to find a job in Santa Clara's local government when he goes back home in one year. "I need to learn Chinese if I want the job, as we have a large Chinese community there."

    Gor is not alone in his thinking. While the number of US students in China has grown from less than 100 in the early 1980s to more than 10,000 for the time being. Many of them are here to boost(提高) a professional skill as much as to enjoy a new culture.

    “In the past, foreign students came to China simply for our culture,” said Xu Quihan, director of BLCU's foreign students' office. “But because of China's rapid economic and social development, being able to speak Chinese has become a useful tool to a student's future job”

    There are more US students who choose to stay in the country instead of going back after graduation. Stephanie Schubmehlo, a 23-year-old from Rochester, New York State, said she would like to stay in Beijing after graduation. “I love the city, and I can earn myself a living here if I can speak good Chinese,” she said, adding that some of the US students she knows shared the same idea.

    With the possible exception of equal rights, perhaps the most controversial issue across the United States today is the death penalty. Many argue that it is an effective deterrent (威慑) to murder, while others maintain there is no convincing evidence that the death penalty reduces the number of murders.

    The principal argument advanced by those opposed to the death penalty, basically, is that it is cruel and inhuman punishment, which is the mark of a brutal society, and finally that it is of questionable effectiveness as a deterrent to crime anyway.

    In our opinion, the death penalty is a necessary evil. Throughout recorded history there have always been those extreme individuals in every society who were capable of terribly violent crimes such as murder. But some are more extreme than others.

    For example, it is one thing to take the life of another in a fit of blind rage, but quite another to coldly plot and carry out the murder of one or more people in the style of a butcher. Thus, murder, like all other crimes, is a matter of relative degree. While it could be argued with some conviction that the criminal in the first instance should be merely separated from society, such should not be the fate of the latter type murderer.

    The value of the death penalty as a deterrent to crime may be open to debate. But the overwhelming majority of citizens believe that the death penalty protects them. Their belief is strengthened by evidence which shows that the death penalty deters murder. For example, from 1954 to 1963, when the death penalty was consistently imposed in California, the murder rate remained between three and four murders for each 100,000 population. Since 1964 the death penalty has been carried out only once, and the murder rate has risen to 10.4 murders for each 100,000 population. The sharp climb in the state's murder rate, which began when executions stopped, is no coincidence. It is convincing evidence that the death penalty does deter many murderers. If the bill reestablishing the death penalty is banned, innocent people will be murdered—some whose lives may have been saved if the death penalty were in effect. This is literally a life or death matter. The lives of thousands of innocent people must be protected.