For decades,the San Francisco Bay area has been the heart of the computer technology industry.Many of the biggest technology companies have their headquarters in the area called Silicon Valley.But the area has not always been associated with charity . Now,a new generation of entrepreneurs appears to be changing Silicon Valley.One example is Marc Benioff,a donor ,who has called on wealthy donors to give more to their communities.He also is the founder of Salesforce.com,a computer services company in San Francisco who has helped build a children's hospital and given millions of dollars to non-profit organizations in the city. Money from the technology industry has also started to change the face of charity.Benjamin Soskis writes about the history and ideas behind charity in America.His articles have appeared in The Atlantic magazine and a number of major publications.He says,traditionally,donors have given after they spent much of their lives building up wealth.Usually donors are in their 70s.But an increasing number of people appearing on the list of top donors are younger than 40 years of age.Benjamin Soskis says that is something new."There's a whole new model that's appearing in which people give and accumulate at the same time." Some of the young donors on this year's top 50 list have started to change in the way people see charity.That is especially the case in the San Francisco area,where giving money and making money appear to be coming together."I think it's fair to say that charity is now a part of the Silicon Valley identity." Which of the following can be the best title for the text? A) The age of charity B) The changing faces of charity C) In search of new faces D) From computer base to charity centre
B
Without proper planning,tourism can cause problems.For example,too many tourists can crowd public places that are also enjoyed by the inhabitants of the country.If tourists create too much traffic,the inhabitants become annoyed and unhappy.They begin to dislike tourists and to treat them impolitely.They forget how much tourism can help the country's economy.It is important to think about the people of a destination country and how tourism affects them.Tourism should help a country keep the customs and beauty that attract tourists.Tourism should also advance the wealth and happiness of local . Too much tourism can be a problem.If tourism grows too quickly,people must leave other jobs to work in the tourism industry.This means that other parts of the country's economy can suffer. On the other hand,if there is not enough tourism,people can lose jobs.Businesses can also lose money.It costs a great deal of money to build large hotels.Airports,first-class roads,and other support facilities needed by tourist attractions.For example,a major international class tourism hotel can cost as much as 50 thousand dollars per room to build.If this room is not used most of the time,the owners of the hotel will lose money. Building a hotel is just a beginning.There must be many other support facilities as well,including roads to get to the hotel,electricity,sewers to handle waste,and water.All of these support facilities cost money.If they are not used because there are not enough tourists,jobs and money are lost. It can be inferred from the text that _ . A) the author doesn't like tourism developing so fast. B) local people will benefit from tourist attraction. C) people will lose jobs because of the development of tourism. D) we shouldn't build support facilities needed by tourist attractions .
B
Q: People who are obese have a worse memory than their thinner friends, a small study shows. Tests on 50 people showed that being overweight was linked to worse "episodic memory" or the ability to remember past experiences. The study in the Quarterly Journal of Experimental Psychology argues that a less vivid memory of recent meals may lead to overeating. However, other aspects of memory -- such as general knowledge -- show no signs. Tests on rats have previously shown that with burgeoning waistlines come poorer performances in memory tests, but the evidence in humans has been mixed. Fifty people with a Body Mass Index (BMI) ranging from 18 (healthy) to 51 (very obese) took part in a memory test -- a bit like doing a treasure hunt on your own. They had to "hide" objects at different times and on different scenes displayed on a computer screen. They were later asked to recall what they had hidden, when and where. The results showed obese people's scores were 15% lower than thinner people. Dr. Lucy Cheke, from the University of Cambridge, told the BBC News website, "The suggestion we're making is that a higher BMI is having some reduction on the vividness of memory, but they're not drawing blanks and having amnesia . As a matter of fact, if they have a less strong memory of a recent meal, with a less strong impact in the mind, then they may have less ability to regulate how much they eat later on." Hunger hormones play a huge role in how much we eat, but it has already been recognized that our minds have a key role too. Dr. Cheke concluded, "It is too early to talk in terms of advice, but we are certainly beginning to observe how obesity causes itself to continue." Where does this text probably come from? A) An entertainment magazine. B) A science report. C) An advertisement. D) Science fiction.
A: B
Q: During the school year many parents take on the role of driver as they drive their children from one lesson to another .Understandably so. Many of us want our children to have a little taste of everything, from organized sports to music, dance and more. But we can overdo it, leaving our children feeling a little burnt out, and according to parent educator Diane Loisie ,it's their school work which suffers the most. "After school, if they're busy in a number of sporting events, besides they need to do their homework, then the time they'll feel sleepy is in the classroom. Your child needs free time. So if you're filling up that after school time, then it's during the day that they're going to be taking a break." Professor Claire McDermott agrees that there's a lot to be gained from sometimes putting those scheduled lessons and activities away. "Relaxing time is important for children. It's time just to do the things they want to do. A child can go up to their room, or they can play around. It doesn't look like productive time; parents certainly wouldn't be saying 'Wow, are they ever learning things now?' But this relaxing time gives both the body and the brain just a wonderful chance to relax after a day. It helps a child prepare for sleep, but it also helps to understand the learning that's gone on that day." It's hard to prevent signing our kids up for some activities and lessons. After all, many of us want our children to have a head start in life and the chance to join in great activities in the arts or sports is a part of that. However, Loisie feels that in the long run most children feel better with just a few key activities because it gives them an opportunity to master them. "When we get our children in too many activities because we want our children to experience everything, then what we're doing is setting them up not to be good at one thing or gaining a skill." So choose your children's activities wisely. It may be one of the best things you've ever done for your kids... and for the family drivers! Why should parents limit the activities our children attend? A) Because children have no time. B) Because children cannot learn many things. C) Because children do not have enough sleep. D) Because children cannot focus on too many activities.
A: D