分析 本文属于记叙文阅读,作者通过这篇文章向我们介绍了Russell Lyons做志愿者的事情,他不像其他的年轻人一样做志愿者是为了让自己的大学申请上给人印象深刻,他做志愿者是受妈妈的影响,这是他自然的一部分,不用故意为之.
解答 56.B 推理判断题.根据第一段中的"He was 4.Still,said it felt good up there,front of he in the other kids,lending a hand.He wanted more of that feeling."可知,Russell Lyons 四岁时作为志愿者为学前儿童读书,这给他留下了极深的印象. creative 有创造性的; persuasive 有说服力的;imaginative 有想象力的,均与短文语境不符,故选B.
57.A 段落大意题.文章第三段中提到了 Russell Lyons 曾经所从事过的各种志愿者工作,而在这一段的后半部分则提到他现在正在洛杉矶,从事一个支持残疾青年的项目. 由此可知,本段意在表达 Russell Lyons 正在从事志愿者工作.故选A.
58.C 细节理解题.根据文章第四段"It bothers him that the media often describes young people as lazy,self-centered and materialistic.So he sees his trip as a chance to make a statement,too.‘About 55 percent of teens do volunteer work,higher than the rate of adults,'…"可知,Russell Lyons 是反对所谓年轻人都懒惰,以自我为中心和追求物质利益这种观点的.故选C.
59.D 推理判断题.根据倒数第二段的句子But charity work is a habit with him.可知,对于Russell Lyons 来说,从事志愿者工作已经成为他生活中自然的一部分了.故选D.
60.B 推理判断题,根据最后一段He gets some of that drive from his mother,Leslye Lyons,who has been involved in nonprofits for much of her life.She was there when her son"read"to the preschoolers-a memory of hers"that will never go away."可知Russell Lyons 喜欢从事志愿者活动是因为受了他母亲的影响,故选B.
点评 考查学生的细节理解和推理判断能力.做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确选择.在做推理判断题时不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
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科目:高中英语 来源:2016-2017学年四川省乐山外国语学校高二下学期期中考试英语试卷(解析版) 题型:阅读理解
As if there weren’t enough of them in the world already, scientists have succeeded in cloning flies. The alike fruit flies are the first insects ever cloned, says the Canadian team that created them. The question everyone asks is why anyone would want to clone flies in the first place. She hopes that the insects , which are very easy to experiment with , will help to adjust the cloning process in other animals and even in humans, where the technique is being researched to aid production of therapeutic (治疗的) stem cells.
In cloning, the DNA-containing nucleus of an adult cell is injected into an egg whose own nucleus(细胞核) has been removed. At the moment, the majority of cloned mice, sheep and other animals die before birth. It is thought this is because the adult DNA is not properly ‘reprogrammed’.
Using flies, researchers might discover genes that are important for this reprogramming, and that have matches in other animals. That is because it is relatively easy in flies to knock out the function of a single gene and then attempt cloning with these cells, which will test whether that gene is important. If such genes are confirmed, then in theory cloned mammalian embryos(晶胚) might be grown in selected solutions that change the activity of those genes to improve the technique’s success rate. Although some groups have attempted to clone insects before, Lloyd says this is the first time it has been successful. The team used a slight difference on the standard cloning process: they transferred nuclei taken from embryos rather than fully-grown adult cells. They sucked several nuclei (pl)out of developing fly embryos, and injected them into a fertilized(已受精的) fly egg. From over 800 early attempts, they cloned five adult insects, the group reports in the journal Genetics.
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