Food is extremely important to us human beings and rice is one of the main food in the world. Australian researchers have discovered a way to genetically engineer rice which would provide significant health benefits to more than half the world’s population.
A study undertaken at the University of Tasmania, published in a respected journal of the National Academy of Sciences, discovered a method to increase the resistant starch (抗性淀粉）content in rice, making it more digestible and leading to lower rate of diabetes (糖尿病）and overweight.
Steven Smith, the lead author of the study and a foreign expert for the Chinese government who has been appointed to work on crop improvement projects by the Chinese Academy of Sciences, said increasing the higher resistant starch content gave this “designer” rice many added health benefits. “We have discovered that we can increase the amount of resistant starch in cooked rice, which could provide health benefits for a large number of people in Asia and beyond,” Smith said in a media release on Friday. “The same approach can be adapted for use in other cereals, including wheat. Not only can it have benefits for diabetes and obesity, but also for disorders of the bowel(肠）including cancer.”
Rice is the main food for more than half the world’s population, providing much of the world with most of their calories. Smith said that as the rate of diabetes and obesity in Asian countries continued to grow, his “designer” rice could provide a way to limit health problems.
“Not only does resistant starch reduce the possibility of a ‘sugar hit’ but it also reduces the appetite and promotes the growth of the healthy germs.” Smith said.
Smith divides his time between the University of Tasmania and his research lab in Beijing where he hopes to make significant advance in sustainable (可持续的）living.
32. What do we know about the study?
A. It is part of Chinese crop improvement projects.
B. It will have a significant effect on crop researches.
C. It was jointly（联合地）carried out by Australia and China.
D. It helps solve the food problem for over half of the world’s population.
33. Based on the text, the resistant starch ________.
A. exists in large amounts in cooked rice
B. decreases the possibility of a “sugar hit” and provides more calories
C. is helpful in digestion and lowers the rate of overweight and diabetes
D. increases people’s appetite and improves the growth of healthy germs
34. The underlined word “it” in Paragraph 3 refers to _________.
A. resistant starch B. cooked rice C. the approach D. media release
35. Where does this text probably come from?
A. An environmental report. B. A medical journal.
C. An engineering textbook. D. An agricultural magazine.
答案 32—35 BCAD