Scientists have a long tradition of sharing their research results through professional journals. 5.__________ the published journals are often expensive and not universally available.

　　The Internet provides a good platform for sharing research results. Over the last decade, the Internet has speeded 6.__________ and expanded the research communication system. This system ensures that the knowledge generated through science can be used effectively and universally to deal with 7.__________ most fundamental problems facing the whole world. Now, most scientists agree 8.__________ if research findings are to be used by other scientists, they must be available on the web.

　　Ⅲ.阅读理解

　　All around the world, more and more people are donating their time to take part in online volunteering projects. What motivates them to help strangers without expectation of money or even thanks?

　　Radha Taralekar helped teach Imelda how to protect herself from HIV, though the two have never met, and neither knows the other's name. From her home in Mumbai, the young woman took several weeks to write a guide especially for Imelda — who lost her children to HIV/Aids in Uganda. Taralekar received no payment for the job. Taralekar is one of a number of talented people who regularly donate their time online. But what is driving them to help total strangers, while asking for nothing in return? For Taralekar, the project gave her the chance to use her professional experience. “I want to serve people with my medical knowledge，” she says.

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