[填空题]Penicillin（）(make) from plant material that the body can absorb.

[填空题]Penicillin（）(make) from plant material that the body can absorb.

[填空题]Penicillin （） (make) from plant material that the body can absorb.

[单项选择]第一篇 “Salty” Rice Plant Boosts Harvests British scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more. Tim Flowers and Tony Yeo, from Sussex University’s School of Biological Sciences, have spent several years researching how crops, such as rice, could be made to grow in water that has become salty. The pair have recently begun a three-year programme, funded by the Biotechnology and Biological Sciences Research Council, to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops, starting with rice. It is estimated that each year more than 10m hectares(公顷) of agricultural land are lost because salt gets into the soil and stunts(妨碍生长)plants. The problem is caused by several factors. In the tropics, mangroves(红树林) that create swamps（沼泽） and traditionally formed barriers to se
A. They are students at Sussex University.
B. They are rice breeders.
C. They are husband and wife.
D. They are colleagues at an institution of higher learning.

[简答题]The plant is a present from a friend that was supposed to flower in the summer.

[单项选择]Human beings make themselves different from other animals by ________.
[A] having the ability to perceive danger [C] having the ability to recognize faces and places on sight
[B] having a far greater memory capacity [D] having the ability to draw on past experiences


A. Human beings make themselves different from other animals by ________.
B. having the ability to perceive danger
C. having a far greater memory capacity
D. having the ability to recognize faces and places on sight
E. having the ability to draw on past experiences

[简答题]Newspaper publishers make money mainly from subscribers and advertisers. It’s been that way for centuries. But in the last few years an important new income stream has opened up for newspapers. Among the pioneers is The Gazette Company in Cedar Rapids, Iowa, which since 1993 has been providing information to its readers delivered by both paper and, increasingly, the Web. "If a newspaper views itself as ink on paper, I don’t think it will survive. " says Steve Hannah, vice president of information technology.
61) Online newspapers are a look into the future, and just pondering it raises the question of whether it isn’t nicer getting your daily news curled up in your favorite chair with your ballpoint pen handy to circle items of interest, or scissors ready to snip out articles you want to save. The Gazette Company is betting its subscribers want both electronic and paper options, and so far it seems to be right.
The rest of the world is moving into cyberspace mor