分析 本文主要介紹了人類的嗅覺基因和嗅覺系統(tǒng).科學家們通過研究嗅覺基因和嗅覺系統(tǒng)是如何工作的,發(fā)現了嗅覺在我們的生活中起著非常重要的作用.
解答 63.C 細節(jié)理解題.根據第三段These two scientists were the first to describe the family of 1,000olfactory (嗅覺) genes and to explain how our olfactory system works.可知理查德•阿克塞爾和琳達•巴克研究了家庭嗅覺基因并解釋了我們的嗅覺系統(tǒng)是如何工作的.由此推知,這兩位科學家發(fā)現了人類嗅覺系統(tǒng)的本質.故選C.
64.C 細節(jié)理解題.根據第五段Similarly,the smells of lemon and coffee appeared to promote clear thinking and mental focus.可知喝咖啡有助于提高思考和注意力.故選C.
65.C 推理判斷題.根據最后一段their study shows that nearly every human being shows a different pattern of active and inactive smell-detecting receptors.可知不同的人對不同的氣味敏感.故選C.
66.B 主旨大意題.本文主要介紹了嗅覺基因和嗅覺系統(tǒng).研究者發(fā)現嗅覺在我們的生活中起著非常重要的作用.故選B.
點評 本文考察學生的理解推斷能力以及細心程度,只要抓住文章的關鍵詞,采用尋讀的方法查找細節(jié),就能找到正確答案.
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增加:在缺詞處加一個漏字符號(∧),并在其下面寫出該加的詞。
刪除:把多余的詞用斜線(\)劃掉。
修改:在錯的詞下劃一橫線,并在該詞下面寫出修改后的詞。
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假定英語課上老師要求同桌之間交換修改作文,請你修改你同桌寫的以下短文。短文中共有10處錯誤,每句中最多有兩處。錯誤涉及一個單詞的增加、刪除或修改。
增加:在缺詞處加一個漏字符號(∧),并在此符號下面寫出該加的詞。
刪除:把多余的詞用斜線(\)劃掉。
修改:在錯的詞下劃一橫線,并在該詞下面寫出修改后的詞。
注意:1.每處錯誤及其修改均僅限一詞;
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