六級改錯(cuò)沖刺模擬題（1）

   The European Union had approved a number of genetically            

modified crops until late 1998. But growing public concern

over its supposed environmental and health risks led several                        1. __________

EU countries to demand a moratorium (暫時(shí)禁止) on imports

of any new GM produce. By late 1999 there were enough such

country to block any new approvals of GM produce.                                  2. __________

   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.                                        3.__________

    As more studies have been completed on the effects

of GM crops, the greens’ case for them has weakened.                              4.__________

Much evidence has emerged of health risks from eating                              5. __________

them. And, overall, the studies have shown that the

environmental effects on modified crops are not always    

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