Read the article and select the best answer. Article: Nuclear weapons were first developed in the United States during the Second World War to be used against Germany.However, by the time the first bombs were ready for use, the war with Germany had ended and, as a result, the decision was made to use the weapons against Japan instead. The real reasons why bombs were dropped on two heavily populated cities are not altogether clear.A number of people in 1944 and early 1945 argued that the use of nuclear weapons would be unnecessary, since American Intelligence was aware that some of the most powerful and influential people in Japan had already realised that the war was lost, and wanted to discuss a Japanese surrender .It was also argued that, since Japan has few natural resources, a blockade by the American navy would force it to surrender within a few Weeks, and the use of nuclear weapons would prove unnecessary.If a demonstration of force was required to end the war, a bomb could be dropped over an unpopulated area like a desert, in front of Japanese observers, or over an area of low population inside Japan, such as a forest.Choosing this course of action might decrease the loss of further lives on all sides, while the power of nuclear weapons would still be adequately demonstrated . All of these arguments were turned down, however, and the general agreement was that the quickest way to end the fighting would be to use nuclear weapons against the centres of population inside Japan.In fact, two of the more likely reasons why the decision was reached seem quite shocking to us now. Question: According to Paragraph 2, a blockade would have been successful because Options: A: Japan had to import most of its natural resources B: Japan would not be powerful enough to beat a blockade C: an attack would probably destroy Japanese resources within a few weeks D: the Americans could defeat Japan's navy since it was short of resources
A

Read the article and select the best answer. Article: Tim Berners-Lee is the man who wrote the software program that led to the foundation of the World Wide Web. Britain played an important part in developing the first generation of computers. The parents of Tim Berners-Lee both worked on one of the earliest commercial computers and talked about their work at home. As a child he would build models of computers from packing material. After graduating from Oxford University he went on to the real thing. In the 1980s, scientists were already communicating using a primitive version of e-mail. While working at a laboratory in Switzerland, Tim Berners-Lee wrote a program, which let him store these messages. This gave him another idea: write a program that will let academics from across the world share information on a single place. In 1990 he wrote the HTTP and HTML programs which form the basis of the World Wide Web. The next year his programs were placed on to the Internet. Everyone was welcome to use them and improve them if they could. Programmers used this codes to work with different operating systems. New things like web browsers and search engines were developed. Between 1991 and 1994 the number of web pages rose from 10 to 100,000. In 1994 Tim Berners-Lee formed the newly formed World Wide Web consortium , or W3C. More than 200 leading companies and laboratories are represented by W3C. Together they make sure that everyone can share equally on the web. "The Web can help people to understand the way that others live and love. It helps us understand the humanity of people." he says. Question: From the passage, we can infer that Tim Berners-Lee is . Options: A: British B: American C: Swiss D: French
A

Q: Read the article and select the best answer. Article: Every living cell contains genes. They are too small to be seen in a microscope, but they are very important. Each set of genes in the body contains all the instructions needed to make a human being. Some genes determine hair color. Some determine the shape of a nose. Some genes help determine your height and even your weight. Genes are made of a chemical called DNA-the letters stand for deoxyribonucleic acid . In the early 1950's, two scientists, Francis Crick and James Watson, figured out how the parts of DNA fit together. Once scientists understood this structure, it became possible to take pieces of DNA apart and put them together in new ways. New kinds of genes could be made in this manner. Scientists have studied the genes of many plants and animals. They have worked out which genes affect the color of a tomato and the thickness of its skin. Working out which genes determine which features is called genetic mapping, scientists have begun the Human Genome Project, an ambitious effort to map all the genes in the human body. Some genes may be defective . For example, something might be wrong with the gene that makes blood clot . A baby born with this defective gene could suffer serious hemorrhages or even bleed to death because his or her blood fails to clot. If scientists ever learn how to map all the genes in our bodies, they can determine whether or not an unborn child has any defective genes. They might even discover how to treat these genes before the child is born. Question: What is the main idea of this passage? Options: A: Defective genes can never be repaired. B: Genes are too small to be seen through a microscope. C: Genes help scientists understand how living things develop their characteristics. D: The Human Genome Project may explain the role of every gene in the body.
A: C

Read the article and select the best answer. Article: We often use an Internet search engine to find a website that will provide information. For example, if we want to learn something about the Pepsi Cola Company, its website provides information about the history of the company. We can also find articles in newspapers and magazines. We confirm information with second and third sources to make sure the information is correct. Sometimes we also use an encyclopedia --- a set of books containing information on almost any subject. Encyclopedias are written by experts and have been a trust --- worthy source of information for years. Now there is also a free online encyclopedia called Wikipedia, which is written by people around the world. Anyone can edit or add to an article, but this has caused problems. Last year, a former editor of the paper USA Today discovered wrong information about him on Wikipedia. Someone had written an article that falsely linked him to a political assassination . This wrong information was quickly corrected. According to a recent study by the publication Nature, Wikipedia has more mistakes, compared with Britannica --- a well-known printed encyclopedia. It found an average of four mistakes in a Wikipedia article, and three in an article of Britannica's. But Wikipedia supporters note that they are able to correct information when they find a mistake while written publications are not able to do this. Wikipedia started in 2001. The word "wiki" comes from "wiki wiki", which means "quickly" in the Hawaiian language. It is said that it is the largest single source of information in history. It is also one of the fastest growing sites on the Internet. It offers more than three million articles in more than two hundred languages. Each month, it records more than two billion page visits. Jimmy Wales, who helped start Wikipedia, says that its purpose is to provide everyone with a free encyclopedia written in their native language. You can find information on nearly every subject on Wikipedia. However, some experts warn people not to believe... Question: From the passage, it can be inferred that _ . Options: A: printed encyclopedia will lose their popularity. B: it is necessary to confirm information on Wikipedia. C: information on Wikipedia is available in any language. D: more and more mistakes will be found on Wikipedia.
B