寄托家园8T互助小组第二组

duowqUID：196783

30.according to the passage, it is believed that the largest wxtinction of a species occurred()    a  26 million years ago    b  65 million years ago  c  225  million years ago  d  250 million years ago  答案说是C   知道应该是:Perhaps the largest mass extinction was the one that occurred225 million years ago.  但是文中20_21行: finding that extinctions during the past 250 million years have tended to be (more )intense every 26 million years 好象答案就不对了.  

48 the passage implies that the warmest temperatures among the periods mentioned occurred()    a  in the early eighteenth century   b 160.000 years ago  c at the end of each ice age   d  between 360 and 285 million years ago 答案是A.  好象又是上面那题的问题.  知道应该是21_22行的... but never rose much higher until the industrial  revolution beginning in the eighteenth century and continuing today   但是文章的25_26行: carbon dioxide levels may have been much greater than the current concentration during the Carboniferous period 360 tp 285 millions years ago. 这样答案好象又是D了, 不懂?????
这两个题偶都做错了, 看阅读笔记也没说到 这个问题, 感觉很简单的细节题. ..... 郁闷. 请大家指点下.

duowqUID：196783

原帖由 莫名N 于 2006-8-7 16:07 发表


我想你把两个概念弄混了
一个是最高级,而另一句是某一段时间的比较级表示最高级
比如说第一题里,
答案对应的那句有the largest mass extinction
而20-21行的那句说的是在过去的250万年里,每26万年extinct ...

谢谢莫名的解释.30 已经想通了. 是偶理解错了.
但是48题的25_26 那句话: carbon dioxide levels may have been much greater than the current concentration during the Carboniferous period 360 tp 285 millions years ago.的意思好象是在C时期,也就是285_360内, CD的水平要比当今的含量高吧?但是你的解释怎么是低呢? 好有点不懂. 请再帮忙下.

duowqUID：196783

原帖由 莫名N 于 2006-8-8 16:32 发表


不好意思...偶看错了...

如果是高的话,只是把过去的一段时间和现在比,并不是把所有的时间和现在比.比如说,在过去的360-285万年间,cd的水平是比现在高,但是360万年以前呢?285万年到100万年间呢?都没有比较啊 ...

恩, 谢谢了啊. 偶看来已经理解了. 下次一定不会再犯这种错误了. 呵呵. 赞一个先~~~!

duowqUID：196783

27 The phrase “this regionalization scheme” in line 19 refers to the
(A)        movements of glacial deposits
(B)        patterns of natural vegetation
(C)        human modification of the North American environment
(D)        distinction between humid America and arid America
阅读笔记上的答案是D,而且说的好象有点道理的. 而汉克笔记上答案是B, 偶选的也是B的.很模糊. 对这种看上去是词汇,其实是指代的题很混. 请解答下. 谢谢.

duowqUID：196783

恩, 谢谢斑斑的回答.

duowqUID：196783

1. (A) She reads more slowly than the man does.
(B) She has a 1ot of material to read before she has coffee.
(C) The man does more work than is necessary.
(D) The man seems to be taking a long time preparing for philosophy class.
原文m: Sorry , but i can not go and have a cup of coffee with you now. i have only done half the readings or the philosophy class tomorrow.
      w: and i thought was a sow reader
   what does the woman mean ?   不懂.