分析 一天一個蘋果,疾病遠離我,可最近一項研究表明,一天一個蘋果,有助于抗老化.
此報告專注于研究果蠅,因為其一部分基因和人類的一樣.這些果蠅有的是正常喂養(yǎng),有的是正常喂養(yǎng)的基礎上加入了蘋果濃縮物.
最后證明加了蘋果濃縮物的蘋果生命持久的要長5天,還發(fā)現(xiàn)果蠅活動更靈活.
根據(jù)結果可知蘋果濃縮物里的抗氧化劑能清除引起疾病和衰老的化學物質.
另一個研究發(fā)現(xiàn)那些經常吃蘋果的女人患心臟病和中風的可能性要低20%.蘋果的遺傳密碼已被發(fā)現(xiàn),專家正在種植含有抗氧化劑的蘋果.研究蘋果DNA的專家來自5個國家的100個科學家,他們的研究還表明,在6500萬年前,當恐龍開始死亡,植物,最終成為今天的蘋果樹,經歷了一個偉大的遺傳變化.它的許多基因的數(shù)量增加了一倍,額外的基因讓蘋果適應惡劣條件和不同的發(fā)展經歷.
解答 30.答案:C.細節(jié)理解題,根據(jù)第二段The research chose fruit flies(果蠅),as they share many genes(基因)with humans.可以看出此報告專注于研究果蠅,因為其一部分基因和人類的一樣,故選C.
31.答案:B.細節(jié)理解題.根據(jù)第三段"According to the result,the researchers believed that the antioxidants(抗氧化劑) in the apple extract helped clean up dangerous chemicals(化學物質) that cause illnesses,as well as aging."可知蘋果濃縮物里的抗氧化劑能清除引起疾病和衰老的化學物質.故選B.
32.答案:C.推理判斷題,根據(jù)最后"when dinosaurs began to die off the plant,which would finally become today's apple tree,experienced a great genetic change."在6500萬年前,當恐龍開始死亡,植物,最終成為今天的蘋果樹,經歷了一個偉大的遺傳變化.The extra genes allowed the apple to get used to worse conditions 額外的基因讓蘋果適應惡劣條件,故選C.
33.答案:A.推理判斷題.根據(jù)第一段:An apple a day keeps the doctor away.A recent research carried out by the Chinese University of Hong Kong may change the saying:An apple a day may keep aging away.吃蘋果會給我們帶來更多的優(yōu)點比我們之前認為的更多,可以抗衰老,故答案是A.
點評 閱讀題型,要注重句子與句子之間、段落與段落之間邏輯關系以及對篇章的整體理解.根據(jù)所給問題選擇正確選項完成試題.
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