The article says scientists know how one-legged flamingos stand.

A . Text messages have allowed children to learn and feel empathy. B . Cell phones have made children‘s life at school colorful and exciting. C . Experiencing loneliness or sadness is as beneficial as enjoying happiness. D . Cell phones may offer people the quickest way to find someone to talk to.

A . Ironic B . Passionate C . Humorous D . Matter-of-fact

A．这位科学家表示，由于人们越来越关注环境问题，因此发现了从垃圾中找出物质并再加以利用的新方法。 B．这位科学家表示，随着人们对环境问题的日益关注，废物再利用的新方法得以产生。 C．这位科学家表示，随着对环境问题的日益关注，人们找到了从垃圾中提取材料并再加以利用的新方法。 D．这位科学家表示，由于对环境问题的日益关注，人们已找出了将垃圾捉取出来并再利用的新方法。

A．How high the ants can leap by using their jaws. B．How quickly the trap-jaw ants can move on the ground. C．How wonderfully the springy system in the trap-jaw ants" jaws works. D．How quickly the trap-jaw ants can grab food or enemies.

Sharks do not have bones, and a shark has an extremely good sense of smell. It can find. small amounts of substances in the water, such as blood, body liquids and chemicals produced by animals. Sharks also sense electrical and magnetic power linked to nerves and muscles of living animals. These powerful senses help them find their fond. Some sharks will eat just about anything. Many unusual things have been found in the stomachs of some large sharks. They include shoes, dogs, a cow's foot and metal protective clothing. About forty percent of the different kinds of sharks lay eggs. The others give birth to live young. Some sharks carry their young inside their bodies like humans do. Scientists are beginning to understand the importance of sharks to humans. Medical researchers want to learn more about the shark's body defense system against disease. They know that sharks recover quickly from injuries. Sharks appear never to suffer infections, cancer or heart diseases. What is this passage mainly about？ A．The necessity of protecting sharks. B．The living environment of sharks. C．The dangers of sharks to human beings. D．An introduction to sharks.

•For each Question 15-20, mark one letter (A, B, C or D) on your Answer Sheet for the answer you choose. "Harmonization" is a process of increasing the compatibility of accounting practices by setting limits on how much they vary. Harmonized standards are free of logical conflicts, and should improve the comparability of financial information from different countries. Efforts to harmonize accounting standards began even before the creation of the International Accounting Standards Committee (IASC) in 1973. International accounting harmonization now is one of the most important issues facing securities regulators, stock exchanges, and those who prepare or use financial statements. Harmonization and standardization are sometimes used interchangeably. But there is still a difference between them. Standardization normally means the imposition of a rigid and narrow set of rules, and may even apply a single standard or rule to all situations. Besides, standardization does not accommodate national differences and, therefore, is more difficult to implement internationally. Whereas harmonization is much more flexible and open. It does not take a one-size-fits-all approach, but accommodates national differences and has made a great of progress internationally in recent years. However, within accounting, these two words have almost become technical terms, and one cannot rely on the normal difference in their meanings. 'Harmonization' is a word that tends to be associated with the transnational legislation originating from the European Union while 'standardization' is a word that is often associated with the International Accounting Standard Committee. The reasons that make national accounting standards desirable also apply internationally. Generally speaking, the reasons for harmonization are as follows: (1) It is important and necessary for investors and financial analysts to understand the financial statements of foreign companies whose shares they might wish to buy. They hope to make it quite sure that statements from different countries are reliable and comparable, or at least to be clear about the nature and magnitude of the differences. Besides, they also need confidence in the soundness of the auditing. (2) The advantages of harmonization are very important for MNEs, because the great effort of financial accountants to prepare and consolidate financial statements would be much simplified if statements from all around the world were prepared according to the same standards. Besides, it would be much easier to prepare comparable internal information for the appraisal of the performance of subsidiaries in different countries. Further, many aspects of investment appraisal, performance evaluation, and other decision making uses of management accounting information would benefit from harmonization. Above all, the cost of capital should be reduced by reducing the risk for investors if accounting can be made more comparable and reliable. (3) International accountancy firms can benefit from harmonization. They are in favour of harmonization because it is good for their large clients. (4) Governments in developing countries might find it easier to understand and control the operations of MNEs if financial reporting were harmonized. The most fundamental of obstacles to harmonization is the size of the present differences between the accounting practices of different countries. In previous Section 8.5 some main differences concerned with international accounting are discussed. Besides, there are several significant differences within the equity class, let alone between that class and the other. These differences go to the root of the reasons for the preparation of accounting information. Further, the dichotomy between shareholder/fair view pr A．International Accounting Standard B．International Accounting C．International Accounting Harmonization D．International Accounting Standard Committee

A．Richard Tucker is acquainted with photography. B．Mr. Whitman is a novice photographer. C．Mr. Whitman"s job is much easier due to advanced technology. D．Mr. Whitman was an advertising agent.

W: But next to potatoes, I believe. Q: What does the woman mean？ (15) A．It's raining heavily. B．It's going to rain. C．It's raining slightly. D．He wants some cats and dogs.

A) It is easily transmitted from person to person. B) It remains unclear how it is transmitted. C) It is transmitted by sneezing or coughing. D) It is transmitted by skin-to-skin contact.

A.find out B.fill out C.think out D.figure out

A.Volcanic eruptions are not always deadly. B.Older volcanic eruptions were more destructive. C.Carbon dioxide emissions often give rise to global warming. D.It is not easy to calculate the killing power of a volcanic eruption.

A.They compared zoo-born elephants with wild elephants. B.They analyzed the records of 800 elephants kept in zoos. C.The zoo-bom elephants they studied were kept in European zoos. D.They kept detailed records of all the elephants in their care.

A．Videogame addiction in children. B．Positive effects of addictions. C．Families concern about their children’s addiction to videogames. D．Treatment for videogame addiction.

A．Y B．N C．NG

We rose tint our memories and put ourselves into self-affirming situations. We become defensive when criticized, and apply negative stereotypes to others to boost our own esteem, we stalk around thinking we’re hot stuff. Psychologist and behavioral scientist Nicholas Epley oversaw a key studying into self-enhancement and attractiveness. Rather that have people simply rate their beauty compress with others, he asked them to identify an original photogragh of themselves’ from a lineup including versions that had been altered to appear more and less attractive. Visual recognition, reads the study, is “an automatic psychological process occurring rapidly and intuitively with little or no apparent conscious deliberation”. If the subjects quickly chose a falsely flattering image- which must did- they genuinely believed it was really how they looked. Epley found no significant gender difference in responses. Nor was there any evidence that, those who self-enhance the must (that is, the participants who thought the most positively doctored picture were real) were doing so to make up for profound insecurities. In fact those who thought that the images higher up the attractiveness scale were real directly corresponded with those who showed other makers for having higher self-esteem. “I don’t think the findings that we having have are any evidence of personal delusion”, says Epley. “It’s a reflection simply of people generally thinking well of themselves’. If you are depressed, you won’t be self-enhancing. Knowing the results of Epley ‘s study,it makes sense that why people heat photographs of themselves Viscerally-on one level, they don’t even recognise the person in the picture as themselves, Facebook therefore ,is a self-enhancer’s paradise,where people can share only the most flattering photos, the cream of their wit ,style. ,beauty, intellect and lifestyle. it’s not that people’s profiles are dishonest,says catalina toma of Wiscon—Madison university ,”but they portray an idealized version of themselves. According to the first paragraph, social psychologist have found that ______ . A.our self-ratings are unrealistically high B.illusory superiority is baseless effect C.our need for leadership is unnatural D.self-enhancing strategies are ineffective Visual recognition is believed to be people’s______ .A.rapid watching B.conscious choice C.intuitive response D.automatic self-defence Epley found that people with higher self-esteem tended to______ .A.underestimate their insecurities B.believe in their attractiveness C.cover up their depressions D.oversimplify their illusions The word “Viscerally”(Line 2,para.5) is closest in meaning to_____.A.instinctively B.occasionally C.particularly D.aggressively It can be inferred that Facebook is self-enhancer’s paradise because people can _____.A.present their dishonest profiles B.define their traditional life styles C.share their intellectual pursuits D.withhold their unflattering sides 请帮忙给出每个问题的正确答案和分析，谢谢！

David Salt is an expert on plants at Purdue University in West Lafayette, Indiana. He is working with plants that store large amounts of metals. In recent years, scientists have shown interest in using such plants to clean up harmful waste materials. Professor Salt says such plants also could be used to improve people's diets or even to create foods that fight cancer. Humans need a number of metals in their diets, including iron and zinc. These metals are needed in very small amounts, however. That is why they are called micronutrients. The lack of micronutrients is blamed for health problems in many developing countries. Children and pregnant women are mostly affected. Recently, Mr. Salt announced that he has identified and copied the genes from a kind of plant that stores metals in its tissues. He says his study suggests it may be possible to develop plants that contain minerals needed for good health. For example, the metal selenium is a strong anti-cancer agent. Some wild plants store selenium naturally. Mr. Salt says foods to fight cancer might be created if genes from these plants could be moved into crop plants. Locoweed, which is a common plant in the western U.S., stores selenium. Professor Salt says it may be possible to create cancer-fighting foods from it. He and scientists from a company called Unicycle Therapies have copied the gene that causes locoweed to take up selenium from the soil. Many people take pills to add important minerals or vitamins to their diet. However, Mister Salt notes that most selenium products sold in health food stores are of little use. That is because the human body can only take in and use selenium if it is in the right chemical form. The scientist says his team would like to develop a vegetable crop high in selenium. He wants to create an anti-cancer product in the foods we already eat. According to Pro. Salt, plants that take up large amounts of metal in their tissues can be used to ______. A．clean polluted soil and cure disease like cancer B．clean up harmful waste materials in soil and improve people's diet C．produce large number of micronutrients such as iron and zinc D．create food with important minerals or vitamins

A．Keep the public informed and especially to advise politicians and other influential persons. B．The scientists should make the technological assessment of foreseeable benefits and harmful effects. C．One thing scientists can and should do is to counteract the tendency of the news media to exaggererate and sensationalize new developments. D．A scientist should be responsible for presenting a？ true picture to the public about new developments in his own field,and for indicating possible implications so far as he can see them. 此题为多项选择题。

A．A.being B．B.they should be C．C.care D．D.to be