43. It remains unsettled whether the global food supply problem can be solved by creating heat-tolerant crops through genetic engineering.
答案&解析
43.答案解析J。
由题干关键信息remains unsettled、the global food supply problem和creating heat-tolerant cropsthrough genetic engineering定位到J段。该段前几句提到，我们有办法减轻全球粮食供应即将受到的打击。像法兰特在复活作物方面所做的工作一样，很多公司、组织和研究人员们正在致力于通过基因工程和传统培育创造耐旱和耐高温的农作物。目前，这些努力能否取得成功尚无定论。由此可知，题干是对原文内容的同义转述。题干中的It remains unsettled对应原文中的the jury is still out,the global food supply属于原词重现，whether...can be solved对应原文中的how successful those endeavours will be,而by creating heat-tolerantcrops through genetic engineering对应原文中的create drought-and temperature-resistant crops through geneticengineering and conventional breeding。
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