The European Union had approved a number ofgenetically modified crops until

游客2024-06-03  11

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 they 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. [br] 【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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