分析 本文屬于說明文閱讀,作者通過這篇文章主要向我們描述了喂養(yǎng)后代的轉(zhuǎn)基因食物工程,轉(zhuǎn)基因食物正在被研究解決世界性的饑餓問題.
解答 63.D.推理判斷題.根據(jù)第一段Yes,my best friend is a genetically modified organism(轉(zhuǎn)基因生物); deliberate selection has produced the blunt-toothed,small-pawed wonder that walks by my side可知作者在第一段提到狼是為了介紹一種利用人類優(yōu)勢的技術(shù);故選D.
64.B.推理判斷題.根據(jù)第二段In the last five decades,global population has fully doubled,with 3.7billion hungry mouths added to our planet.During this same time span,the amount of land suitable for agriculture has increased by only 5%可知轉(zhuǎn)基因技術(shù)改善了農(nóng)作物產(chǎn)量,但還沒能消除饑荒;故選B.
65.C.細(xì)節(jié)理解題.根據(jù)第四段Plant geneticists can now directly edit out or edit in sections of DNA using molecular scissors可知現(xiàn)代技術(shù)有助于加快人工選擇過程通過改變DNA;故選C.
66.B.推理判斷題.根據(jù)最后一段We must continue as before,nourishing the future as we feed ourselves,and each year plant only the very best of what we have collectively engineered可知文章最好的標(biāo)題是喂養(yǎng)后代的轉(zhuǎn)基因食物工程;故選B.
點(diǎn)評 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力,做細(xì)節(jié)理解題時(shí)一定要找到文章中的原句,和題干進(jìn)行比較,再做出正確的選擇.在做推理判斷題不要以個(gè)人的主觀想象代替文章的事實(shí),要根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷.
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