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 many students 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

    Fear and its companion pain are two of the most useful things that man and animals possess if they are used. If fire didn't hurt when it burned, children would play with it until their hands were burned away. Similarly, if pain existed but fear didn't, a child could burn itself again and again because fear would not warn it to keep away from the fire that had burnt it before. A really fearless soldier--and some do exist--is not a good soldier because he is soon killed; and a dead soldier is of no use to his army. Fear and pain are therefore two guards without which man and animals might soon die out.

    In our first sentence we suggested that fear ought to be properly used. If, for example, you never go out of your house because of the danger of being knocked down and killed in the street by a car, you are letting fear rule you too much. The important thing is not to let fear rule you, but instead, to use fear as your servant and guide. Fear will warn you of dangers; then you have to decide what action to take.

    In many cases, you can take quick and successful action to avoid the danger. For example, you see a car coming straight towards you; fear warns you, you jump out of the way, and all is well.

    In some cases, however, you decide that there is nothing that you can do to avoid the danger. For example, you cannot prevent an airplane crashing into your house, and you may not want to go and live in a desert where there are no airplanes. In this case, fear has given you its warning, you have examined it and decided on your course of action, so fear of the particular danger is no longer of any use to you, and you have to try to overcome it.

    ①What is a place where you could find old pictures of camels carrying people to Mecca, Saudi Arabia (沙特阿拉伯麦加),and also books about ancient Aztecs(阿芝 特克人) in Mexico ? It is all found in the World Digital Library (WDL). Its collection is available on the Internet.

    ②The librarian of the United States Congress, James Billington, established the WDL in 2009. And John Van Oudenaren is the director. They want it to include items that are both interesting and important, which encourages them to look for things from each country, each culture and each civilization. There are 170 partners in 79 countries sending material to it, including national or university libraries, museums and other cultural organizations.

    ③The library has 8,000 items, including whole books, ancient writings, music and photographs. Every item is annotated (注解)in the 6 official languages of the United Nations: English, Arabic, French, Spanish, Chinese, Russian plus Portuguese (葡萄牙语).

    ④Anyone may search the World Digital Library by subject, time period, kind of document or area of the world, whose website is www.wdl.org. Since 2009, 25 million people have visited the website from 250 places. The greatest number is from Spanish-speaking countries. The users include schools, researchers and anyone interested. A teacher from New York City said happily, “It is really wonderful to have a site where every kid in the class, no matter which country he/she is from or where his/her parents were from could search and find something about that country.”

    ⑤Mussa Maravl is a researcher for the WDL from Sudan, who works with all the materials that are in Arabic. He recently published rare photographs of Mecca from 1885. “These camels are, you know, lying their heads on the ground, which is very unusual for a camel. It means these camels have traveled so long, so far and half of those are very thin, too, meaning they have exhausted all the fat they have stored.”

    ⑥Mussa Maravl believes the library provides tools for understanding, especially among Arabs, Muslims and the United States. He says the WDL is posting many items about important developments in Arabic and Islamic science.

    There is a popular saying in the English language: "Sticks and stones may break my bones, but words will never hurt me." Well, that is not true. Unkind words, name-calling or even the so-called "the silent treatment" can hurt children as much as being physically hit, sometimes even more so.

    A recent study of middle school children showed that verbal(言语的) abuse by other children can harm development in the brain. The study was a project of researchers at Harvard Medical School in Massachusetts. Researcher Martin Teicher and his team studied young adults, aged 18 to 25. These young men and women had not ever been treated in a cruel or violent way by their parents. The researchers asked the young people to rate their childhood exposure to verbal abuse from both parents and other children. Then the researchers performed imaging tests on the brains of the subjects.

    The images showed that the people who reported suffering verbal abuse from peers in middle school had underdeveloped connections between the left and right side of the brain. The two sides of the brain are connected by a large bundle of connecting fibers called the corpus callosum. This was the area that was underdeveloped.

    The middle school years are a time when these brain connections are developing. So, unkind, hurtful comments from children or adults during this period have the greatest effect. The researchers tested the mental and emotional condition of all the young people in the study. The tests showed that this same group of people had higher levels of fear, depression, anger and drug abuse than others in the study.

    The researchers published their findings online on the American Journal of Psychiatry's website.

    Parents cannot control what other people say to their children, but they can prepare their children.

    Facebook is an American online social media and social networking service. The Facebook website was launched on February 4, 2004, by Mark Zuckerberg, along with fellow Harvard College students and roommates.

    The founders had limited the website's membership to Harvard students at first; however, later they expanded it to various other universities, and eventually to high school students as well. Since 2006, anyone who claims to be at least 13 years old has been allowed to become a registered (注册了的) user of Facebook, though differences exist in the youngest age requirement, depending on local laws. Facebook has more than 2 billion monthly active users as of June 2017. As of April 2016, Facebook was the most popular social networking site in the world, based on the number of active user accounts.

    Facebook may be accessed by a large range of desktops, smartphones over the Internet and mobile networks. After registering to use the site, users can create a user profile (简介) showing their names and so on. Users can add other users as "friends", exchange messages, post photos and so on.

    Facebook makes most of its income from advertisements which appear on screen, marketing access for its customers to its users.