2 . Volunteering abroad is a great way to help others，improve your skills and become a more confident，independent person. If you are interested in volunteering abroad，here are some places to go.

Australia

If you seek a life on the beach，in a great climate with friendly people，Australia might be your best bet. With thousands of volunteers already signing up to leave for Australia during the holidays，it will be a very popular option.

Brazil

This vast country has some great opportunities on offer and is especially popular this year. A lot of volunteer work is available in Brazil centers on conservation and ecological projects. With the world's largest rainforest in Brazil，of which huge part is in danger，there are lots of different jobs you can do.

Kenya

Kenya is the destination for those seeking an African experience. Generally volunteers in Kenya work in orphanages (孤儿院) or with local children living in slums. There is a great demand for volunteers in Africa because many people live in poverty，so if you truly feel like making a difference to a community，Kenya should be at the top of your list.

Costa Rica

Golden sandy beaches，clear coastlines and beautiful cities are what Costa Rica is all about. Because of its small size，you can see a lot of the country in just a short time. You can really make the most of your time as a volunteer. A lot of work is needed with wildlife and ecological work，so if you want to look after turtles on the beach，Costa Rica could be just the place for you.

1. If you are interested in protecting the environment，you will probably go to        .

A．Australia

B．Brazil

C．Kenya

D．Costa Rica

2. It can be inferred from the passage that volunteers in Kenya mainly work with        .

A．animals

B．plants

C．the elderly

D．children

3. If you choose to go to Costa Rica，you are supposed to        .

A．take care of trees in the forests	B．surf with children in the water
C．work with animals on the beach	D．look after children who have lost their parents

3 . If you believe that scientists and artists are most creative when they're young, you are missing an important part of the story. A new study published in De Economist looked at Nobel Prize winners in the field of economics. It found there are two different peaks of creativity. One comes early in a person's career, while another comes later.

The research supports previous work by the authors that found similar patterns in the arts and other sciences.

"We believe what we found in this study isn't limited to economics, but could apply to creativity more generally," said Bruce Weinberg, lead author of the study and professor of economics at The Ohio State University.

"Many people believe that creativity is exclusively associated with youth,but it really depends on what kind of creativity you're talking about."

In the study, those who did their most groundbreaking work early in their careers tended to be "conceptual" innovators(创新者).

These type of innovators "think outside the box", challenging conventional wisdom and suddenly coming up with new ideas. Conceptual innovators are not yet immersed(沉浸于)in the accepted theories of their field, Weinberg said.

But there is another kind of creativity, he said, which is found among "experimental" innovators. These innovators accumulate knowledge through their careers and find new ways to understand it.

The long periods of trial and error for important experimental innovations come later in a Nobel laureate's(荣誉获得者的)career.

"Whether you hit your creative peak early or late in your career depends on whether you have a conceptual or experimental approach," Weinberg said.

The researchers took a novel, empirical(经验主义的)approach to the study, which involved 31 laureates. They arranged the laureates on a list from the most experimental to most conceptual.

This ranking was based on the laureates' most important work, classifying them into "conceptual" or "experimental".

After classifying the laureates, the researchers determined the age at which each laureate made his most important contribution to economics and could be considered at his creative peak.

They found that conceptual laureates peaked between ages 25 and 29. Experimental laureates peaked when they were roughly twice as old, in their mid-50s.

"Our research suggests that when you're most creative is more about how you approach your work."

1. What did the study published in De Economist find?

A．Creativity comes at any age, young or old.

B．Creativity tends to decrease as people get older.

C．Economists, artists and other scientists have much in common.

D．Economists are more creative than artists and other scientists.

2. What does the underlined phrase "think outside the box" mean?

A．Follow rules strictly.

B．Experiment on boxes.

C．Break old thought patterns.

D．Figure out how to escape from a box.

3. What do we know about "experimental" innovators?

A．They usually come up with new ideas all of a sudden.

B．They make discoveries through constant trial and error.

C．The majority of them reach their creative peak in their twenties.

D．They make more contributions than "conceptual" innovators.

4. What do the researchers believe determines someone's creative peak?

A．One's personality type.

B．What kind of job one takes.

C．How one handles their work.

D．One's attitude toward their work.