Alaskan black bears hibernate for up to ven months a year, during which time t

更新时间:2023-02-05 05:34:44 阅读: 评论:0

题文

Alaskan black bears hibernate for up to ven months a year, during which time they do not eat or drink, before waking up in virtually the same physical state they fell asleep in. Now experts hope to develop methods of putting humans into a similar state which could help astronauts survive long missions and lead to new ways of treating verely ill patients. While many studies have examined hibernation in mice and hedgehogs, little rearch has been done into the same condition in larger mammals such as bears. But new rearch conducted at the Institute of Arctic Biology at the University of Alaska monitored the animals' body temperature, heart rate and muscle movements while they slept. The rearch results showed that during a five-month hibernation the bears’ body temeratures varied between 30℃ and 36℃ in cycles that lasted between two and ven days—a pattern that was previously unknown in hibernating animals. The rearch project leader said, "If our rearch could help by showing how to reduce metabolic(新陈代谢的) rates and oxygen demands in human tissues, one could possibly save verely ill patients. We simply need to know how to turn things on and off to take advantage of the different levels of hibernation." Craig Heller, of Stanford University, who contributed to the study, added: "There has always been a thought that, if there is ever long-distance space travel, it would be good to be able to put people into a state of lower metabolism or a state of hibernation. That's almost science fiction but you can e the logical basis."小题1:We know from the text that    .A.during winter Alaskan black bears sleep for more than half a yearB.rearchers have examined hibernation in humansC.experts have got no results from their rearchD.Craig Heller is a leader from the Institute of Arctic Biology小题2:The best topic of the text should be    .. A.The Latest Rearch ResultsB.New Methods of Putting Humans into HibernationC.Alaskan Black Bears HibernateD.Astronauts Could Hibernate Like Bears小题3:According to the text, we can infer that .A.many studies have examined hibernation in mice and bears as wellB.humans' body temperatures vary between 30℃ and 36℃ while they sleepC.rearch into hibernation in animals may help deadly patients stay longerD.scientists have already take advantage of the different levels of hibernation in space missions 题型:未知难度:其他题型

答案

小题1:A小题1:D小题1:C

解析

考点

据考高分专家说,试题“Alaskan black bears .....”主要考查你对 [日常生活类阅读 ]考点的理解。 日常生活类阅读

日常生活类阅读的概念:

日常生活这一话题主要涉及人们衣食住行等方面的活动。这一话题的选材主要针对人们日常的工作,生活以及学习情况。做这一类题时,最主要的是要把握好人物的活动内容,时间和地点。

日常生活类阅读题答题技巧:

【题型说明】该类文章内容涉及到人们的言谈举止、生活习惯、饮食起居、服饰仪表、恋爱婚姻、消遣娱乐、节日起源、家庭生活等。文章篇幅短小,追根溯源,探索各项风俗的历史渊源,内容有趣。命题也以送分题为主,如事实细节题、语义转换题、词义猜测题和简单推理判断题等。虽然这类文章读起来感觉轻松,试题做起来比较顺手,但绝不能掉以轻心。因为稍不留神,就会丢分。 【备考提醒】为了保证较高准确率,建议同学们做好以下几点: 1、保持正常的考试心态。笔者在教学中发现,越是容易的试题,同学们越是容易失分。为什么呢?因为在这种情况下,同学们极易产生麻痹思想,认为题目好做,就不引起高度重视,于是思维不发散、不周密。而命题人就是利用同学们的这一弱点,设计陷阱题。所以,无论试题难易与否,我们都要保持正常的考试心态。试题容易,不欣喜;试题难,不悲观。 2、根据前面讲到的方法,认认真真、细细心心做好事实细节题。 3、做好语义转换题。这类题是根据英语中一词多义和某些词语在文中能表达一定的修辞意义的原则而设计的。要求同学们解释某生词的含义,确定多义词或短语在文中的意思,确认文中的某个代词所指代的对象,或者对英语中特有的表达、格言、谚语进行解释。这种题要求同学们一定要根据上下文猜测词义或理解句子,切不可望文生义。 4、做好简单推理判断题。简单推理判断题要以表面文字为前提,以具体事实为依据进行推理,做出判断。这种推理方式比较直接,只要弄清事实,即可结合常识推断出合理的结论。

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标签:bears   black   Alaskan   hibernate   time
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