分析 一天一個蘋果,疾病遠(yuǎn)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(chǔ)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(jié)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(xué)物質(zhì).
另一個研究發(fā)現(xiàn)那些經(jīng)常吃蘋果的女人患心臟病和中風(fēng)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(xué)家,他們的研究還表明,在6500萬年前,當(dāng)恐龍開始死亡,植物,最終成為今天的蘋果樹,經(jīng)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(yīng)惡劣條件和不同的發(fā)展經(jīng)歷.
解答 30.答案:C.細(xì)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(xì)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(xué)物質(zhì)) 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(xué)物質(zhì).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(dāng)恐龍開始死亡,植物,最終成為今天的蘋果樹,經(jīng)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(yīng)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(rèn)為的更多,可以抗衰老,故答案是A.
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