分析 文章主要是介绍了一项最近关于温室气体排放的研究.为了减少导致全球变暖的温室气体的排放,澳大利亚科学家目前正在想办法将牛羊胃变成袋鼠式的胃.袋鼠胃中有一种特殊的细菌能使其放的屁中不含有甲烷.科学家想将这种细菌移至牛羊的胃中,以抑制它们所排放的大量有害气体.另一组科学家建议澳大利亚人应少养牛羊,多吃袋鼠肉.
解答 28-30.BCA
28题答案:B考查推理判断.从文章第一﹑二自然段"为了减少导致全球变暖的温室气体的排放,澳大利亚科学家目前正在想办法将牛羊胃变成袋鼠式的胃.袋鼠胃中有一种特殊的细菌能使其放的屁中不含有甲烷.科学家想将这种细菌移至牛羊的胃中,以抑制它们所排放的大量有害气体."可推断得知B选项为正确答案.
29题答案:C考查细节推理,根据文章倒数第二段的Researchers say the bacteria also make the digestive process much more efficient and could potentially save millions of dollars in feed costs for farmers…before they can even start to develop a way of transferring it( bacteria)to cattle and sheep.研究人员说细菌使消化过程更加有效而且能潜在地为农民的喂养成本节省数以百万计美元…在他们开始研究一种将这种细菌植入到牛和羊身上之前.可知本题答案为C选项.
30题答案:A考查细节推理,根据文章倒数第三段的But it will take researchers at least three years to isolate (分离) the bacteria,before they can even start to develop a way of transferring it to cattle and sheep.但是甚至在他们开始研究将这种细菌植入到牛和羊身上之前研究者还要至少花费三年的时间来分离这种细菌.可知目前科学家还不知道如何将这种细菌植入到牛和羊身上,故本题答案为A选项.
点评 本文是一篇科教类阅读,题目涉及多道细节理解题,做题时结合原文和题目有针对 性找出相关语句进行仔细分析,结合选项选出正确答案.推理判断也是要在抓住关键句子的基础上合理的分析才能得出正确的答案.
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假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
注意:1.每处错误及其修改均限一词;
2.只允许修改10处,多者(从第11处起)不计分。
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