2. 外语
  3. The European Union had approved a number of genetically modified crops until late 1998. But growing public concern over its sup

The European Union had approved a number of genetically modified crops until late 1998. But growing public concern over its sup

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问题      The European  Union had approved a number of
genetically modified crops until late 1998. But growing
public concern over its supposed environmental and health      【S1】______
risks led several EU countries to demand a moratorium(暂时
禁止) on imports of any new GM produce. By late 1999
there were enough such country to block any new approvals      【S2】______
of GM produce. Last year, America filed a complaint at the
WTO about the moratorium, arguing that it was an illegal
trade barrier because there is no scientific base for it.      【S3】______
     As more studies have been completed on the effects of
GM crops, the greens’ case for them has weakened.              【S4】______
Much evidence has emerged of health risks from eating them.    【S5】______
And, overall, the studies have shown that the environmental
effects on modified crops are not always as serious as the     【S6】______
greens claim. Nevertheless, environmentalists continue to find
fault of such studies and argue that riley are inconclusive.   【S7】______
    While Americans seem be happy enough to consume            【S8】______
food made from GM crops, opinion polls continue to show
that European consumers dislike the idea. Europeans seem be
taking the attitude which, since there remains the slightest   【S9】______
possibility of adverse consequences and since it is clear how  【S10】______
they, as consumers, benefit from GM crops, they would
rather not run the risk.
【S3】
选项
答案base→basis
解析 base意为“基础，基地”，basis (for)意为“基础，根据”，原句表达“科学根据”只能为scientific basis，而scientific base 意为“科学基地”。此处还应注意的是不能受base on(基于)这个短语的影响而将for改为on。
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大学英语六级

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