阅读下列短文，从每题所给的四个选项 （A 、B 、C  和 D ）中，选出最佳选项。

    In an ideal world, people would not test medicines on animals. Such experiments are stressful and sometimes painful for animals, and expensive and time-consuming for people. Yet animal experimentation is still needed to help bridge vast gaps in medical knowledge. That is why there are some 50 to 100 million animals used in research around the world each year.

    Europe, on the whole, has the world's most restrictive (严格的) laws on animal experiments. Even so，its scientists use some 12 million animals a year, most of them mice and rats, for medical research. Official statistics show that just 1.1 million animals are used in research in America each year. But that is misleading. The American authorities do not think mice and rats are worth counting and, as these are the most common laboratory animals, the true figure is much higher. Japan and China have even less comprehensive (全面的) data than America.

    Now Europe is reforming the rules governing animal experiments by restricting the number of animals used in labs. Alternatives to animal testing，such as using human tissue or computer models, are now strongly recommended. In addition, sharing all research results freely should help to reduce the number of animals for scientific use. At present, scientists often share only the results of successful experiments. If their findings do not fit the hypothesis (假设) being tested, the work never sees the light of day. This practice means wasting time, money, and animals' lives in endlessly repeating the failed experiments.

    Animal experimentation has taught humanity a great deal and saved countless lives. It needs to continue，even if that means animals sometimes suffer. Europe's new measures should eventually both reduce the number of animals used in experiments and improve the way in which scientific research is conducted.

    In January, 2016, Harry Styles made a bold decision. He left the popular boy band One Direction and went solo (单飞). Now he is making his own voice heard. The 23-year-old British singer released his first solo single called Sign of the Times. His self-titled album (个人同名专辑) is coming out on May 12.

    Going solo is a journey for him to find his identity (身份). Though at the time, he was uncertain about his future, he kept a word in his mind - “honesty”. “I didn't want to write ‘stories',” he told Rolling Stone. “I wanted to write my stories, things that happened to me. The number-one thing was I wanted to be honest. I hadn't done that before.”

    He is indeed full of stories since beginning his solo career. Last fall, he spent two months recording on a remote island in Jamaica (牙买加).Along with some musicians, he filled a two-floor house with instruments. They hung out at the bar that looked like a tree house. Many mornings began with a swim in the river down the hill. They watched many romantic comedies. Styles always held a black notebook and looked like a college student who was studying, Rolling Stone reported.

    His coming album is about rock music. In fact, he grew up with it. His father Desmond was a rock music fan. When Styles was very young, he danced to The Dark Side of the Moon, a classic song by British rock band Pink Floyd. “I couldn't really get it. But I just remember (thinking that) this is really cool.”

    Harry said, “At the very beginning, all I wanted was to be the granddad with the best stories.” Surely, now he is on the right track (轨道).

    Field Trip Day

    On Friday, May 16, our class will take a field trip to North Park Zoo. The zoo has lions, elephants, and other interesting animals. Many of the animals we have been studying will be there for us to closely examine.

    Our class will be divided into six teams. Each team will have five students and one leader. The leaders are listed in the table.

    What You Need to Know

    The cost is $1.00 for students to enter the zoo. We will leave the school at 9:00 a.m. and return at 2:30 p.m.

    On the morning of the trip, the students will be divided into teams. One student from each team will receive a camera. The cameraman will take pictures of the team, the animals, and other fun sights at the zoo.

    All members should wear blue shirts. Be sure to wear comfortable shoes because we will be walking all day. Please bring a bag lunch and a drink. We will have a picnic at the park inside the zoo. Bring a healthy snack, such as a piece of fruit and a drink, for later in the day.

    When we are at the zoo, always remain with your team. Do not leave the team without asking permission from the team leader.

    Feeding the Animals

    The ONLY animals that students are allowed to feed are those in the children's Zoo. Special food can be bought at the zoo for 25 cents and given to these animals. Do not feed your lunch to them. It is not food for the animals.

    Freedom of the press is rightly protected in most societies, yet it is just this protection that sometimes allows this freedom to be made bad use of. The press has a strong influence which can bring about significant changes to the lives of ordinary people. The story of the first quintuplets(五胞胎) in America clearly showed the power of the press.

    There was a poor family living in Aberdeen, a small town in the U. S. A. Raising five children was already a struggle for the poor parents of this family. When the mother learned that it was another four girls and one more boy that were on the way, she and her husband were shocked beyond belief. Without a doubt, they were going to face even more urgent money problems.

    However, this event changed their lives in ways they had never expected. The day after the birth of the five babies, there were sixty reporters and photographers waiting outside their door. The couple soon made national headlines, for they had become the parents of the first quintuplets in America.

    The family gained fame and money overnight. Newspapers and magazines offered them huge sums of money for the rights to publish their stories as well as their photos. Gifts poured in not only from unknown people, but also from baby food and soap manufacturers who wanted to advertise their products. Though their lives were indeed improved, reporters kept pressing for interviews, which forced the family to hire lawyers to act as spokespeople for them at news conferences.

    Moreover, the birth also brought great changes to Aberdeen. A new highway had been developed, since this town was likely to attract thousands of visitors. Even the name of the town on the road signs was changed to "Quint-City, U.S.A." Locals also discussed the possibility of setting up a "quint museum" to satisfy the curiosity of the public and to protect the family from gossipy visitors at the same time.

    While the babies were still quietly sleeping in the hospital, their parents began paying the price for fame. It would never again be possible for them to lead normal lives. The town itself received so much attention that almost each of the locals there was affected more or less. This was the power of the press, but such power could easily be misapplied.

    Technological change is everywhere and affects every aspect of life, mostly for the better. However, social changes brought about by new technology are often mistaken for a change in attitudes.

    An example at hand is the involvement of parents in the lives of their children who are attending college. Surveys (调查) on this topic suggests that parents today continue to be "very" or "somewhat" overly-protective even after their children move into college dormitories. The same surveys also indicate that the rate of parental involvement is greater today than it was a generation ago. This is usually interpreted as a sign that today's parents are trying to manage their children's lives past the point where this behavior is appropriate.

    However, greater parental involvement does not necessarily indicate that parents are failing to let go of their "adult" children.

    In the context (背景) of this discussion, it seems valuable to first find out the cause of change in the case of parents' involvement with their grown children. If parents of earlier generations had wanted to be in touch with their college-age children frequently, would this have been possible? Probably not. On the other hand, does the possibility of frequent communication today mean that the urge to do so wasn't present a generation ago? Many studies show that older parents - today's grandparents - would have called their children more often if the means and cost of doing so had not been a barrier.

    Furthermore, studies show that finances are the most frequent subject of communication between parents and their college children. The fact that college students are financially dependent on their parents is nothing new; nor are requests for more money to be sent from home. This phenomenon is neither good nor bad; it is a fact of college life, today and in the past.

    Thanks to the advanced technology, we live in an age of bettered communication. This has many implications well beyond the role that parents seem to play in the lives of their children who have left for college. But it is useful to bear in mind that all such changes come from the technology and not some imagined desire by parents to keep their children under their wings.

    Although many online personality tests are fun, only a few will really give you insight into who you are and what you are supposed to be doing with your life.

    At CareerPlanner. com we believe that each individual (个人), regardless of (不管)race or religion, has a purpose in life, and until you discover what your purpose is, you will not find true happiness, nor true job satisfaction.

    This doesn't mean you won't be successful. It just means you won't be happy until you are moving towards your true purpose.

    Unfortunately, our school system does very little to help students discover their true career. This is where online personality tests and career tests can help.

    Online personality tests and career tests can help you better understand what type of work you should be doing to achieve job satisfaction, happiness, and success.

    Personality tests are most useful in giving you insight into "how" your personality compares to others and "how" you like to work.

    In particular, if you frequently experience difficulty working with others, or getting their support and cooperation, a really good personality test would show you how to get along better.

    While personality tests are very useful at showing you how you like to work and how you like your work environment, they are not really designed to show you "what" type of work is right for you.

    That is where Career Interest Tests come in. Online Career Tests, such as the CareerPlanner.com offers will help you discover what your true interests are, and what type of work you will be passionate about.

    But back to personality tests. The most well-established personality tests are the Myers-Briggs Type Indicator R, and the Enneagram.