2. 外语
  3. No one can deny that pesticide have improved the ability of farmers to bring their crops to market.【C1】______ pesticides, farmer

No one can deny that pesticide have improved the ability of farmers to bring their crops to market.【C1】______ pesticides, farmer

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问题      No one can deny that pesticide have improved the ability of farmers to bring their crops to market.【C1】______ pesticides, farmers no longer have to worry that they will lose an entire crop 【C2】______ an army of worms or fruit flies.【C3】______ , Americans  can rely on a large and varied food supply.
     However, we Americans need to become more【C4】______ about the effects of those pesticides on our food. More.【C5】 ______ , we need to think about what new 【C6】______ is necessary to protect ourselves from a【C7】______ too rich in pesticide residue. If we don’t demand greater.【C8】______   on pesticide use, we may be surprised, dismayed and 【C9】______ horrified by the consequence of its use.
     On the most obvious level, farm workers who continue to use the pesticides【C10】______ their present rate will be【C11】______ serious illness. It is no【C12】______ that farmers exposed to herbicides have【C13】______ risk of getting cancer. In addition, children who live in homes where pesticides are used have【C14】______ chance of getting childhood leukemia(白血病).
     Farmers are not the only ones 【C15】______ risk. Consumers may also Suffer serious side effects from daily【C16】______ of foods polluted by pesticides. Although scientists have yet to prove the link【C17】______ they are concerned that pesticide use may be one reason for the increase in various forms of cancer. We need new legislation, that【C18】______ stricter standards governing pesticides residues in food.  Much of the current legislation is based on ignorance. Simply【C19】______ , we allow high levels of cancer-causing substances in our food because we don’t know whether they cause cancer in humans. Yet, why take the risk? If there’s a chance that a pesticide causes cancer, it should be【C20】______ from use.
【C13】
选项 A、a six times greater
B、six times greater
C、a six-times greater
D、six-time greater
答案A
解析 语义衔接题。弄清修饰关系有助于找到正确。这个词组的中心词是risk，直接修饰它的是greater， a greater risk；而six times是用来修饰greater的，没有不定冠词是错误的，而six-times的写法也不对。
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