孤雁

杜甫

孤雁不饮啄，飞鸣声念群。

谁怜一片影，相失万重云？

望尽似犹见，哀多如更闻。

野鸦无意绪，鸣噪自纷纷。

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.

    Traveling to all corners of the world gets easier and easier. We live in a global village, but this doesn't mean that we all behave in the same way.

    How should you behave when you meet someone for the first time?____In Japan, you should bow, and the more respect you want to show, the deeper you should bow. In Thailand, people greet each other by pressing both hands together at the chest.____

    ____ In Muslim countries, you shouldn't expose your body, especially women, who should wear long blouses and skirts. In Korea, you should take off your shoes when entering a house. Remember to place them neatly together where you come in.

    In Spain, lunch is often the biggest meal of the day, and can last two or three hours.____ In Mexico, lunch is the time to relax, and many people prefer not to discuss business as they eat. In Britain, it's not unusual to have a business meeting over breakfast.

    In most countries, an exchange of business cards is necessary for all introductions. It should include your company name and your position. If you are going to a country where your language is not widely spoken, you can get the back side of your card printed in the local language.____

A. For this reason, many people eat a light breakfast and a late dinner.

B. As the saying goes, "when in Rome, do as the Romans do."

C. In both countries, eye contact is avoided as a sign of respect.

D. In China, you may present your card with the writing side up.

E. An American shakes your hand while looking into your eyes.

F. Many countries have rules about what you should and shouldn't wear.

G. Don't make any noise when you eat or drink soup.