分析 本文介紹了人們利用科學(xué)取得的幾項(xiàng)成果.日本的瓜農(nóng)把西瓜變成了方形的;澳大利亞的科學(xué)家培育出了藍(lán)玫瑰;中國的科學(xué)家研制出了新的超級(jí)水稻;美國的科學(xué)家利用西紅柿抗癌.
解答 66.B 根據(jù)"They make their watermelons grow in square (正方形的) glass boxes so the watermelons become square"可知,此處應(yīng)為瓜農(nóng)想辦法解決西瓜的問題,故答案為B
67.E 根據(jù)"when they put a chemical from a blue flower into a rose,they can create a nearly 100% blue rose"可知,這里是在講述科學(xué)家培育藍(lán)玫瑰的事情,故答案為E
68.D 根據(jù)"they have produced a new kind called super rice"可知,這里在講述中國的超級(jí)水稻,故答案為D
69.C 根據(jù)"US scientists have discovered a way to put a chemical into tomato plants while they are growing"可知,美國的科學(xué)家利用蔬菜抗癌.故答案為C
70.A 根據(jù)"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,此處意為科學(xué)家仍在繼續(xù)研究,故答案為A
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