At first, the grains of rice that Ingo Potrykus held in his fingers did not seem at all _________, but inside, these grains were not white, as ordinary rice is, but a very pale yellow — thanks to beta-carotene (胡萝卜素), a building block for vitamin A.
For more than a decade Potrykus had _________ creating a golden rice that could improve the lives of millions of the poorest people in the world, strengthening their eyesight and their _________ disease.
_________ imagining golden rice was one thing and creating one quite another. Year after year, Potrykus and his colleagues ran into one _________ after another until success finally came in the spring of 1999.
At that point, he tackled an even greater challenge. The golden grains _________ pieces of DNA borrowed from bacteria and flowers. It was what some would call Frankenfood, a product of genetic engineering. As such, it _________ a web of hopes und fears.
The debate began the moment genetically engineered crops (GM crops) were first sold in the 1990s, and it has _________ ever since. First to start major protests against biotechnology were European environmentalists and consumer-advocacy groups. They were soon followed by their U.S. counterparts (相对应的人事物).
The hostility is _________. Most of the GM crops __________ so far have been developed to produce a plant that is not harmed by chemicals used to kill weeds (杂草) in the fields. These genetically engineered crops are often sold by the same large, multinational corporations that __________ the weed-killing chemicals that farmers spray on their fields. Consumers have become suspicious (怀疑的).
The benefits did seem small __________ golden rice was developed. It is the first strong example of a GM crop that may __________ not just the farmers who grow it but also the consumers who eat it. In this case, those include at least a million children who die every year because they are weakened by vitamin-A deficiency (缺乏) and an additional 350,000 who go blind.
Many people __________ poverty and hunger look at golden rice and see it as evidence that GM crops can be made to serve the greater public good. They see a critical role for GM crops in feeding the world’s ever-increasing population. As former U.S. President Jimmy Carter put it, “Responsible biotechnology is not the enemy; __________ is.”
1.A.typical | B.special | C.local | D.white |
2.A.dreamed of | B.come in handy | C.been reminded of | D.broken up |
3.A.attempt at | B.effort to | C.resistance to | D.majority of |
4.5.A.surprise | B.obstacle | C.norm | D.opposition |
6.A.achieved | B.stressed | C.overlooked | D.contained |
7.A.was caught in | B.was alive with | C.be conscious of | D.was honored by |
8.A.announced | B.maintained | C.escalated | D.applied |
9.A.brilliant | B.understandable | C.discharged | D.rewarding |
10.A.introduced | B.reminded | C.respected | D.overlooked |
11.A.toss and turn | B.give and take | C.produce and sell | D.demand and supply |
12.A.until | B.after | C.although | D.when |
13.A.feature | B.mark | C.build | D.benefit |
14.A.worried about | B.ashamed of | C.filled with | D.admired for |
15.A.terror | B.misery | C.starvation | D.crisis |