分析 本文介绍了人们利用科学取得的几项成果.日本的瓜农把西瓜变成了方形的;澳大利亚的科学家培育出了蓝玫瑰;中国的科学家研制出了新的超级水稻;美国的科学家利用西红柿抗癌.
解答 66.B 根据"They make their watermelons grow in square (正方形的) glass boxes so the watermelons become square"可知,此处应为瓜农想办法解决西瓜的问题,故答案为B
67.E 根据"when they put a chemical from a blue flower into a rose,they can create a nearly 100% blue rose"可知,这里是在讲述科学家培育蓝玫瑰的事情,故答案为E
68.D 根据"they have produced a new kind called super rice"可知,这里在讲述中国的超级水稻,故答案为D
69.C 根据"US scientists have discovered a way to put a chemical into tomato plants while they are growing"可知,美国的科学家利用蔬菜抗癌.故答案为C
70.A 根据"These cancer-fighting vegetables are not yet for sale"和"If study finds no problems with tomatoes,then patients can begin to use this easy and delicious new treatment."可知,此处意为科学家仍在继续研究,故答案为A
点评 做这道题时要先通读全文,弄清短文大意,然后根据相关句子选出正确答案,最后仔细检查.
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