联合国志愿人员组织的英文简写是( )A. UVB. UVNC. UNVD. UNVO

The mother didn’t know who （）for the broken glass.A. blamedB. be blamedC. to blameD. would blame

News 2 Questions 3 and 4 will be based on the following news item.A. It didn't do enough to celebrate the 100th anniversary of WWI.B. It showed little respect to other European countries.C. It tended to focus on the crimes of WWI.D. It tried to deny the crimes committed by the Nazis.

Social media can be a powerful communication tool for employees, helping them to collaborate, share ideas and solve problems. Research has shown that 82% of employees think social media can improve work relationships and 60% believe it can support decision-making processes. These beliefs contribute to a majority of workers connecting with colleagues on social media, even during work hours.Employers typically worry that social media is a productivity killer; more than half of U.S. employers reportedly block access to social media at work. In my research with 277 employees of a healthcare organization I found these concerns to be misguided. Social media doesn’t reduce productivity nearly as much as it kills employee retention.In the first part of the study I surveyed the employees about why and how they used platforms like Facebook, Twitter, or LinkedIn. Respondents were then asked about their work behaviors, including whether they felt motivated in their jobs and showed initiative at work. I found employees who engage in online social interactions with co-workers through social media blogs tend to be more motivated and come up with innovative ideas. But when employees interact with individuals outside the organization, they are less motivated and show less initiative.In the second part of the study I found 76% of employees using social media for work took an interest in other organizations they found on social media. When I examined how respondents expressed openness to new careers and employers, I found that they engaged in some key activities including researching new organizations and making new work connections.These findings present a dilemma for managers: employees using social media at work are more engaged and more productive, but they are also more likely to leave your company. Managers should implement solutions that neutralize the retention risk caused by social media.They can create social media groups in which employees will be more likely to collaborate and less likely to share withdrawal intentions or discussions about external job opportunities. Managers can also use social media to directly reduce turnover (跳槽) intentions, by recognizing employees’ accomplishments and giving visibility to employees’ success stories.1. What does previous research about social media reveal?A. Most employees think positively of it.B. It improves employees’ work efficiency.C. It enables employees to form connections.D. Employees spend much of their work time on it.2. What did the author’s own research find about social media?A. It influences employees’ work negatively.B. It does much harm to employee loyalty.C. It kills employees’ motivation for work.D. It affects employers’ decision-making.3. What did the author find in his study about the effect of online social interactions?A. It differs from employee to employee.B. It tends to vary with the platform used.C. It has much to do with whom employees interact with.

This plan couldn t help, _ again, it probably couldn t hurt A ) rather B ) however C) on the other side D ) but then

Wild elephants can distinguish between human languages, and they can tell whether a voice comes from a man, woman or boy, a new study says. That’s what researchers found when they played recordings of people for elephants in Kenya. Scientists say this is an advanced thinking skill that other animals haven’t shown. It lets elephants figure out who is a threat and who isn’t. The result shows that while humans are studying elephants, the clever animals are also studying people and drawing on their famed powers of memory, said study author Karen McComb. "Basically they have developed this very rich knowledge of the humans that they share their habitat with," said McComb, a professor of animal behaviour and cognition at the University of Sussex in England. "Memory is key. They must build up that knowledge somehow." The study was released Monday in the Proceedings of the National Academy of Sciences. It’s close but not quite like the Dr. Seuss book, where the empathetic elephant Horton hears something that others can’t hear. McComb and colleagues went to Amboseli National Park in Kenya, where hundreds of wild elephants live among humans, sometimes coming in conflict over scarce water. The scientists used voice recordings of Maasai men, who on occasion kill elephants in confrontations over grazing for cattle, and Kamba men, who are less of a threat to the elephants. By about a two-to-one margin, the elephants reacted defensively—retreating and gathering in a bunch—more to the Maasai language recording because it was associated with the more threatening human tribe, said study co-author Graeme Shannon of Colorado State University. "They are making such a fine-level discrimination using human language skills," Shannon said. "They’re able to acquire quite detailed knowledge. The only way of doing this is with an exceptionally large brain." They repeated the experiment with recordings of Maasai men and women. Since women almost never spear elephants, the animals reacted less to the women’s voices. The same thing happened when they substituted young boys’ voices. "Making this kind of fine distinctions in human voice patterns is quite remarkable," said Emory University animal cognition expert Frans de Waal, who was not part of the study. 1 What can we know about the ability to distinguish between human languages? A Scientists believe it is unique to humans. B Animals have learnt such ability from humans. C No animal except wild elephants has developed it. D Studies show that wild animals are born with such ability. 2 Which of the following is not true about the study mentioned in the passage? A It shows wild elephants can hear something that others can’t hear. B It was conducted in Amboseli National Park in Kenya. C It involved playing recordings of people for wild elephants. D It was made public in the Proceedings of the National Academy of Sciences. 3 Who were the people taking part in the study? A Frans de Waal and Karen McComb. B Graeme Shannon and Frans de Waal. C Dr. Seuss and Graeme Shannon. D Karen McComb and Graeme Shannon. 4 How did the elephants feel of young Maasai boys’ voices? A They are extremely exciting. B They are very depressing. C They are less threatening. D They are gentle and kind. 5 What can wild elephants benefit from their special ability? A Identify and avoid possible danger. B Evolve much faster than any other animals. C Have a better understanding of humans. D Develop their language skills.

On June 17，1774，the officials from Maryland and Virginia held a talk with the Indians of the Six Nations.The Indians were invited to send boys to William and Mary College.In a letter the next day they refused the offer as follows： We know that you have a high opinion of the kind of learning taught in your colleges，and that the costs of living of our young men，while with you，would be very expensive to you.We are convinced that you mean to do us good by your proposal；and we thank you heartily.But you must know that different nations have different ways of looking at things，and you will therefore not be offended if our ideas of this kind of education happen not to be the same as yours.We have had some experience of it.Several of our young people were formerly brought up at the college of the northern provinces：they were taught all your sciences；but when they came back to us，they were bad manners，ignorant of every means of living in the woods - they were totally good for nothing. We are，however，not the less obliged by your kind offer，though we refuse to accept it；and，to show our grateful sense of it，if the gentlemen of Virginia will send us a dozen of their sons，we will take care of their education，teach them all we know，and make men of them.（1）The passage is about ____ .A.the talk between the Indians and the officialsB.the colleges of the northern provincesC the educational values of the IndiansD.the problems of the Americans in the mid-eighteen century（2）The Indian chief's purpose of writing the letter seems to be to ____ .A.politely refuse a friendly offerB.express their opinions on equal treatmentC.show their prideD.describe Indian customs（3）According to the letter，the Indians believed that ____ .A.it would be better for their boys to receive some schoolingB.they were being insulted by the offerC.they knew more about science than the officialsD.they had better way of educating young men（4）Different from the officials' view of education，the Indians thought ____ .A.young women should also be educatedB.they had different goals of educationC.they taught different branches of scienceD.they should teach the sons of the officials first

What mainly accounts for the possibility that distance learning could become the norm? In the coming era of budget cuts to education, distance learning could become the norm. The temptation for those in charge of education budgets to trade teachers for technology could be so strong that they ignore the disadvantages of distance learning. School facilities are expensive to build and maintain, and teachers are expensive to employ. Online classes do not require buildings and each class can host hundreds of people simultaneously, resulting in greater savings, thus increasing the temptation of distance education for those concerned more about budgets than learning. But moving away from a traditional classroom in which a living, breathing human being teaches and interacts with students daily would be a disaster. Physically attending school has hidden benefits: getting up every morning, interacting with peers, and building relationships with teachers are essential skills to cultivate in young people. Moreover, schools should be more than simple institutions of traditional learning. They are now places that provide meals. They are places where students receive counseling and other support. Those policy-makers are often fascinated by the latest technology in education and its potential to “transform” education overnight. But online education does not allow a teacher to keep a struggling student after class and offer help. Educational videos may deliver academic content, but they are unable to make eye contact or assess a student’s level of engagement. Distance education will never match the personal teaching in a traditional classroom. In their first 18 years of life, American children spend only 9% of their time in school. Yet teachers are expected to prepare them to be responsible citizens, cultivate their social skills, encourage successful time management, and enhance their capacity to flourish in an increasingly harsh labor market. Given these expectations, schools should not become permanently “remote”. The power of the classroom is rooted in the humanity of the people gathered in the same place, at the same time. Personal teaching is about teachers showing students a higher path, and about young people going through the process together. Technology, no matter how advanced, should simply be a tool of a good teacher.A、Advances in education technology.B、Shrinking financial resources.C、Shortage of school facilities.D、Lack of qualified teachers.

We have been told that under no circumstances _________ the telephone in the office for personal affairs.A. may we useB. we may useC. we could useD. did we use

Fill in the blanks with words or phrases from the box below . Change the form where necessary . awkward,blog, cable ,capture , craft ,crash, emotional, nest, solo, be obsessed with, but then, by one’s side, for once, in the form of, run through ,settle down, in total . 1 Accidentally the whole incident was ____ by a young American photographer . 0 . Those who had been kidnapped ( 绑架 ) described how they were scared and in physical and ___ pain . 5 It was not long before help arrived ___ ten police officers.