阅读下列材料，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题纸上将该选项标号涂黑。

           Graph can be a very useful tool for conveying information especially numbers， percentages, and other data . A graph gives the reader a picture to interpret. That can be a lot more pages and pages and pages explaining the data .

          Graphs can seem frightening, but reading a graph is a lot like reading a story. The graph has a title ,a main idea ,and supporting details .You can use your active reading skills to analyze and understand graphs just like any other text .

           Most graphs have a few basic parts: a caption or introduction paragraph, a title , a legend or key, and labeled axes. An active reader looks at each part of the graph before trying to interpret the data. Captions will usually tell you where the data came from (for example, a scientific study of 400 African elephants from 1980 to 2005). Captions usually summarize the author's main point as well. The title is very important. It tells you the main idea of the graph by stating what kind of information is being shown. A legend, also called a key ,is a guide to the symbols and colors used in the graph. Many graphs, including bar graphs and line graphs, have two axes that form a corner, Usually these axes are the left side and the bottom of the graph .Each axis will always have a label. The label tells you what each axis measures.

                   Bar Graphs

          A bar graph has two axes and uses bars to show amounts. In Graph 1 ,we see that the x-axis shows grades

that students earned, and the y-axis shows bow manystudents earned each grade .You can see that 6 students earned an A because the bar for A stretches up to 6 on the vertical measurement. There is a lot of information we can

get from a simple graph like this(See Graph 1).

          Line Graphs

A line graph looks similar to a bar graph ,but instead of Bars, it plots points and connects them with a line .It has the same parts as a bar graph – two labeled axes –and can be read the same way .To read a line graph, it's important to focus on the points of intersection rather than the line segments between the points, This type of graph is most commonly used to show how something changes over time.

Here is a graph that charts how far a bird flies during the first Five days of its spring migration (See Graph 2).

The unit of measurement for the x-axis is days. The unit of measurement for the y-axis is kilometers. Thus we can see that ,on the first day, the pipit flew 20 kilometers. The line segment goes up between Day 1 and Day 2,which means that the bird flew farther on Day 2.If the line segment angled dawn, as between Day 4 and Day 5,it would mean that the bird flew fewer kilometers than the day before. This line graph is a quick, visual way to tell the reader about the bird's migration.

    Pie Graphs

           A typical pie graph looks like a circular pie. The circle is divided into sections, and each section represents a fraction of the data. The graph is commonly used to show percentages; the whole pie represents l00 percent, so each piece is a fraction of the whole.

A pie graph might include a legend，or it might use icons or labels within each slice. This pie graph shows on month's expense, (See Graph 3 ).

Food $ 25

Movies $ 12

Clothing $ 36

Savings $ 20

Books $ 7

    A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech integrated systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.

     “It's extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components (元件),” said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.

    They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it's connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.

    While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers' fields or on the battlefield. “Basically it should be able to take off, land and fly around,” he said.

    Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day to day basis.”

    It is important to protect yourself from harmful rays. But if you think a high-factor sunscreen keeps you safe from harmful rays, you may be wrong. Research in this week's Nature shows that while factor 50 reduces the number of melanomas（黑瘤）and delays their occurrence, it can't prevent them. Melanomas are the most aggressive skin cancers. You have a higher risk if you have red or blond hair, fair skin, blue or green eyes, or sunburn easily, or if a close relative has had one. Melanomas are more common if you have periodic intense exposure to the sun. Other skin cancers are increasingly likely with long-term exposure.

    There is continuing debate as to how effective sunscreen is in reducing melanomas – the evidence is weaker than it is for preventing other types of skin cancer. A 2011 Australian study of 1,621 people found that people randomly selected to apply sunscreen daily had half the rate of melanomas of people who used cream as needed. A second study, comparing 1,167 people with melanomas to 1.101 who didn't have the cancer, found that using sunscreen routinely, alongside other protection such as hats, long sleeves or staying in the shade, did give some protection. This study said other forms of sun protection – no sunscreen – seemed most beneficial. The study relied on people remembering what they had done over each decade of their lives, so it's not entirely reliable. But it seems reasonable to think sunscreen gives people a false sense of security in the sun.

    Many people also don't use sunscreen properly applying insufficient amounts, failing to reapply after a couple of hours and staying in the sun too long. It is sunburn that is most worrying – recent research shows five episodes of sunburn in the teenage years increases the risk of all skin cancers.

    The good news is that a combination of sunscreen and covering up can reduce melanoma rates, as shown by Australian figures from their slip-slop-slap campaign. So if there is a heat wave this summer, it would be best for us, too, to slip on a shirt, use sunscreen and slap on a hat.

    If you go into the forest with friends, stay with them. If you don't, you may get lost. If you get lost, this is what you should do. Sit down and stay where you are. Don't try to find your friends—let them find you. You can help them find you by staying in one place. There is another way to help your friends or other people to find you. You can shout or whistle(吹口哨) three times. Stop. Then shout or whistle three times again. Any signal given three times is a call for help.

    Keep up shouting or whistling. Always three times together. When people hear you, they will know that you are not just making a noise for fun. They will let you know that they have heard your signal. They will give you two shouts or two whistles. When a signal is given twice, it is an answer to a call for help.

    If you don't think that you will get help before night comes, try to make a little house with branches(树枝). Make yourself a bed with leaves and grass.

    When you need some water, you have to leave your little branch house to look for it. Don't just walk away. Pick off small branches and drop them as you walk in order to go back again easily. When you are lost, the most important thing to do is to stay in one place.

    Jane Austen has often been considered a woman who led a narrow, inhibited life and who rarely traveled. These assertions are far from the truth. Jane Austen traveled more than most women of her time and was quite involved in the lives of her brother, so much that it often interfered with her writing. Like most writers, Jane drew on her experiences and her dreams for the future and incorporated them into her writing. Her characters reflect the people around her; the main characters reflect parts of herself. In Sense and Sensibility and Pride and Prejudice, Elinor Dashwood and Elizabeth Bennet reflect aspects of Jane Austen and dreams she had that were never fulfilled.

    The biographies about Jane Austen describe the facts of her life in a step-by-step manner. They tend to be repetitive since she did not leave behind a rich fabric of day-to-day life. Yet Jane Austen is known not because of the factual details of her life; she is not remembered two hundred years after her death because she had six siblings and was a wonderful aunt to her nieces and nephews. Rather, Jane Austen is remembered because of what she wrote. Only through reading her literature does one get a taste of the real Jane Austen, the Jane Austen who dreamed and made plans for the future that failed to materialize. Only by analyzing June Austen's characters do we get an understanding of the true author.

    Sense and Sensibility's Elinor Dashwood mirrors Jane Austen's strait-laced sense of propriety (礼节) and her concern and care about family members. For example, after her father died, Jane managed to gather herself together and send her father's pocket compass and pair of scissors to her brother Frank as a memento of their father. Elinor in Sense and Sensibility is the sister who holds down the family and discusses the practicality of situations. She too distributes cherished mementos of her father when he dies. Elinor is the sister who is concerned with the welfare of her relations and takes it upon herself to look after their well-being.

    Jane can also be considered the backbone of her family. After she dies, the family is not as close as they were during her lifetime. Jane became very close with two of her nieces, Fanny Austen and Anna Austen. She counseled them on men and marriage when they reached the age of choosing a suitor. She often helped with delivering her sister-in-law's babies. During her thirties, she lived with her brother Frank for several weeks. She cooked the meals for his family and cared for his children while his wife was confined to her bed. Like the character she creates in Elinor, she sticks by her family and helps them when they need her.

    Austen's life closely parallels that of Elizabeth Bennet in Pride and Prejudice. Austen begins the novel with the line, “It is a truth universally acknowledged that a single man in possession of a good fortune must be in want of a wife”. This statement reflects the opinion of the time that a woman had to be married or else she had no social standing. Just as Elizabeth and her sisters feel immense pressure to get married and procure a good match, so too did Jane. Until she was twenty-five she still retained a small spark of hope that she would one day marry and have children.

    The most significant similarity between Jane and Lizzy is their close relationships with their sisters. Jane and her sister Cassandra were extremely close. When they moved into a house in Chawton, they shared a bedroom. They were dependent upon each other and supported each other in all aspects of their lives. They supported each other's decisions and wrote to each other when apart. Lizzy and her older sister Jane were extremely close. They too supported each other's decisions and were always there for the other. They discussed suitors and marriage just as Jane and her sister must have done.

    All of Jane's female characters end up happily married, a state Jane herself never felt. A woman was defined in terms of her husband; if she did not marry, she had nothing. Well into her twenties, Jane still had dreams of getting married. When she was twenty-five, Harris Bigg-Wither, a brother of her good friends, proposed marriage to Jane. At first she accepted: she would become mistress of a large estate, and be able to ensure the comfort of her parents to the end of their days. Most importantly, she would have children and raise a family of her own. The next day, however, Jane reneged the proposal. She did not love him and did not want a marriage based on nothing but money. After this proposal, Jane gave up all hopes of ever having a family of her own. Instead, she fulfilled her dreams through her characters and found “passion” through them. All her characters marry for love (which happens to also be financially advantageous). They make Jane's dreams become a reality within her imagination. _____ . As children reflect upon the parents and often mirror aspects of their parents, so too did many of Jane's characters mirror herself and the people around her.

    People from all over the world visit Disneyland to have fun, not to get sick. But last week, an outbreak of measles(麻疹)spread from the Southern California theme park. As of Monday, January 19, at least 52 people have got the easily spread illness.

    The majority of the reported cases of measles are from people who visited the park before. According to the California Department of Public Health, these people were exposed to the illness at Disneyland from December 17-20.

    Officials believe the cause is likely someone who caught measles abroad and visited Disneyland, but this has yet to be proved. However, in 2014, California had its highest measles infection rate in nearly twenty years. There were 66 cases of measles reported in the state―23 of them in Orange County, where Disneyland is located.

    Measles spreads very easily. It can be caught from coughing and sneezing. Crowded areas like theme parks are especially suitable for its spread.

    The illness starts with a fever and develops into symptoms including a cough, runny nose, red eyes and so on. About three out of ten people infected with measles will develop another health problem, including an ear infection or pneumonia(肺炎).

    The best way to guard against measles is to get vaccinated(打疫苗). An unvaccinated person is 35 times more likely to catch measles than someone who received a vaccination.