【每日阅读训练第二期——速度越障1系列】【1-21】（解析已上传）

fox0923

@fox：这么看我就明白啦O(∩_∩)O~算是状语从句吗？

-- by 会员 林水监 (2011/11/3 19:31:39)

恩，我个人的感觉有点像时间状语提前，还是觉得把when放在后面会比较清晰。

fox0923

1min34s
1min47s
1min20s
1min29s
1min44s

5min23s
黑客和基督徒对比。。
我擦。。都是sharing and help others。。。。
晕晕乎乎的。。感觉今天速度比越障还难啊。。= =

-- by 会员 MarsTOF (2011/11/3 11:27:13)

看到mars好亲切阿~嘿嘿~Mars什么时候再战啊？
一起加油！

铁板神猴

依旧奇慢无比==
1.45  
2.00  
2.12  
2.20  
2.31  

抗压继续跟帖！

Cateran

每天第一篇都很慢，总是要warm up
1`20
1`40
1`17
1`30
1`33

6`20 黑客跟基督教扯啥关系。。。

gray0505

这次做的好迟  该打……
1'39''
1'25''
1'43''
1'26''
1'37''

cleargo

1’45  1‘52  1’50  1‘53  2’19  

8‘10
Christianity and hacker ethic, open source.
church's praise and warnings on Internet.
opposition to S's view that the conflicts can be manageable.
other historical Christian attitudes which are in line with S towards coding.
K thinks the creation can go further.
the author concludes two opposite views on coding.

2.B ×→C （inference题。定位错，该句前半段即出现long, 另外But后面也有length or depth.）

5.A ×→E （supportingideas题。文章大意把握不好，题目问的是第一行提到的laboratorystudies，而在末段有提到doevoke the diving response seen in the laboratory，即E中科学家在实验环境下已经解释清楚了所有的长时间潜水的道理，另外首段的段内转折however，只是说忽略了野外捕食的情况）

Jane412

阅读是会呼吸的痛。。。。我要努力赶上大部队。。。
1'54
2'
1'51
2'14
2'30
6'30  什么基督徒 share help others。。。
回头再好好读读

lxsabrina

我读了2篇还不理解。。。。。。。。基督教和黑客有什么联系呀 。。。。。。。。。

mahaofei001

Passage 29 (29/63)
Studies of the Weddell seal in the laboratory have described the physiological mechanisms that allow the seal to cope with the extreme oxygen deprivation that occurs during its longest dives, which can extend 500 meters below the ocean’s surface and last for over 70 minutes. （第五题定位）Recent field studies, however, suggest that during more typical dives in the wild, this seal’s physiological behavior is different.

In the laboratory, when the seal dives below the surface of the water and stops breathing, its heart beats more slowly,（第六题定位） requiring less oxygen, and its arteries become constricted（第六题定位）, ensuring that the seal’s blood remains concentrated near those organs most crucial to its ability to navigate underwater. The seal essentially shuts off the flow of blood to other organs, which either stop functioning （第六题定位）until the seal surfaces or switch to an anaerobic (oxygen-independent) metabolism. The latter results in the production of large amounts of lactic acid（第六题定位，告诉我们III不对） which can adversely affect the pH of the seal’s blood, but since the anaerobic metabolism occurs only in those tissues which have been isolated from the seal’s blood supply（第三题定位）, the lactic acid is released into the seal’s blood only after the seal surfaces, when the lungs, liver, and other organs quickly clear the acid from the seal’s bloodstream.

Recent field studies, however, reveal that on dives in the wild, the seal usually heads directly for its prey and returns to the surface in less than twenty minutes. The absence of high levels of lactic acid in the seal’s blood after such dives suggests that during them, the seal’s organs do not resort to the anaerobic metabolism observed in the laboratory, but are supplied with oxygen from the blood. The seal’s longer excursions underwater, during which it appears to be either exploring distant routes or evading a predator, （第五题定位）do evoke the diving response seen in the laboratory. But why do the seal’s laboratory dives always evoke this response, regardless of their length or depth? Some biologists speculate that because in laboratory dives the seal is forcibly submerged, it does not know how long it will remain underwater and so prepares for the worst.（第二题定位）

1.    The passage provides information to support which of the following generalizations? 【E】
(A) Observations of animals’ physiological behavior in the wild are not reliable unless verified by laboratory studies.
(B) It is generally less difficult to observe the physiological behavior of an animal in the wild than in the laboratory.
(C) The level of lactic acid in an animal’s blood is likely to be higher when it is searching for prey than when it is evading predators.
(D) The level of lactic acid in an animal’s blood is likely to be lowest during those periods in which it experiences oxygen deprivation.
(E) The physiological behavior of animals in a laboratory setting is not always consistent with their physiological behavior in the wild.
2.    It can be inferred from the passage that by describing the Weddell seal as preparing “for the worst” (line 41), biologists mean that it 【C】
(A) prepares to remain underwater for no longer than twenty minutes
(B) exhibits physiological behavior similar to that which characterizes dives in which it heads directly for its prey
(C) exhibits physiological behavior similar to that which characterizes its longest dives in the wild
(D) begins to exhibit predatory behavior
(E) clears the lactic acid from its blood before attempting to dive
3.    The passage suggests that during laboratory dives, the pH of the Weddell seal’s blood is not adversely affected by the production of lactic acid because 【C】
(A) only those organs that are essential to the seal’s ability to navigate underwater revert to an anaerobic mechanism
(B) the seal typically reverts to an anaerobic metabolism only at the very end of the dive
(C) organs that revert to an anaerobic metabolism are temporarily isolated from the seal’s bloodstream
(D) oxygen continues to be supplied to organs that clear lactic acid from the seal’s bloodstream
(E) the seal remains submerged for only short periods of time
4.    Which of the following best summarizes the main point of the passage? 【A】
(A) Recent field studies have indicated that descriptions of the physiological behavior of the Weddell seal during laboratory dives are not applicable to its most typical dives in the wild.
(B) The Weddell seal has developed a number of unique mechanisms that enable it to remain submerged at depths of up to 500 meters for up to 70 minutes.
(C) The results of recent field studies have made it necessary for biologists to revise previous perceptions of how the Weddell seal behaves physiologically during its longest dives in the wild.
(D) Biologists speculate that laboratory studies of the physiological behavior of seals during dives lasting more than twenty minutes would be more accurate if the seals were not forcibly submerged.
(E) How the Weddell seal responds to oxygen deprivation during its longest dives appears to depend on whether the seal is searching for prey or avoiding predators during such dives.
5.    According to the author, which of the following is true of the laboratory studies mentioned in line 1? 【E】
(A) They fail to explain how the seal is able to tolerate the increased production of lactic acid by organs that revert to an anaerobic metabolism during its longest dives in the wild.
(B) They present an oversimplified account of mechanisms that the Weddell seal relies on during its longest dives in the wild.
(C) They provide evidence that undermines the view that the Weddell seal relies on an anaerobic metabolism during its most typical dives in the wild.
(D) They are based on the assumption that Weddell seals rarely spend more than twenty minutes underwater on a typical dive in the wild.
(E) They provide an accurate account of the physiological behavior of Weddell seals during those dives in the wild in which they are either evading predators or exploring distant routes.
6.    The author cites which of the following as characteristic of the Weddell seal’s physiological behavior during dives observed in the laboratory? 【D】
I.    A decrease in the rate at which the seal’s heart beats
II.    A constriction of the seal’s arteries
III.    A decrease in the levels of lactic acid in the seal’s blood
IV.    A temporary halt in the functioning of certain organs
(A) I and III only
(B) II and IV only    
(C) II and III only
(D) I, II, and IV only
(E) I, III, and IV only
7.    The passage suggests that because Weddell seals are forcibly submerged during laboratory dives, they do which of the following? 【B】
(A) Exhibit the physiological responses that are characteristic of dives in the wild that last less than twenty minutes.
(B) Exhibit the physiological responses that are characteristic of the longer dives they undertake in the wild.
(C) Cope with oxygen deprivation less effectively than they do on typical dives in the wild.
(D) Produce smaller amounts of lactic acid than they do on typical dives in the wild.
(E) Navigate less effectively than they do on typical dives in the wild.

先自我批评下，好久没写解析，这几天一直浑浑噩噩的。哎哎。今天重整旗鼓。
这篇文章我超级喜欢，因为一看到科技类的就意味着不用怎么动脑子了。
看上去说得很玄乎的样子吧，我们看文章来。
第一段我们直接找到however。好吧，直接划归到新旧观点对比题吧。However之前的是旧观点，之后的是新观点。

第二段就是把however之前的那个观点给拓展解释了下。记点关键词诸如shuts off the flow of blood to other organs, production of large amounts of lactic acid, 这类的。我们到具体题目再用。

第三段是一个与之前观点不同的，由野外获取的观察结果。同时解释了下第二段的解释为什么不对。

文章结构不是太难吧。我们来看题。

第一题，根据前面分析的文章结构，我们可以很轻易的推断出来，实验室的测试结果和野外是不同的。

第二题，根据第三段的意思，就是海豹在实验室都是按最坏的情况来选择生存模式。而野外最坏的环境是什么样的？就是我们要选的选项。

第三题，定好位,原文中的话。

第四题，按前面的解析来就好。新旧观点对比。找到类似这个态度就可以了。

第五题，两处定位点。实际第一处里看不到正确答案的。联系第二处才可以。

第六题，罗马题。真心头大这类题。没别的着了，一个个找吧。

第七题，感觉和之前的第二题重了。反正就是那个意思。找到就好了。

最后要说，这类科普文章就是一个纸老虎！遇见不认识的单词，不要担心嘛，gmac的出题人估计也和你一样不认识。所以那些你不认得词估计和题目逻辑没啥关系，放宽心就好嘛。我们需要做的只是寻找喽。就看你找的速度了。所以，才有咱阅读小分队存在的必要啊！哈哈！大家加油，共勉！我这准备二战，暴力突破语法中。

Sophia001

倒是全做对了，不过用了23‘07，超了将近十分钟。。。。。，沮丧啊