TPO 8 的二道題請教，求各位高手幫我。。。

baktbdUID: 3290107

１。修辭目的題
Outflow channels are probably relics of catastrophic flooding on Mars long ago. They appear only in equatorial regions and generally do not form extensive interconnected networks. Instead, they are probably the paths taken by huge volumes of water draining from the southern highlands into the northern plains. The onrushing water arising from these flash floods likely also formed the odd teardrop-shaped “islands” (resembling the miniature versions seen in the wet sand of our beaches at low tide) that have been found on the plains close to the ends of the outflow channels. Judging from the width and depth of the channels, the flow rates must have been truly enormous―perhaps as much as a hundred times greater than the 105 tons per second carried by the great Amazon river. Flooding shaped the outflow channels approximately 3 billion years ago, about the same times as the northern volcanic plains formed.

5. In paragraph 2, why does the author include the information that 105 tons of water flow through the Amazon river per second?
○To emphasize the great size of the volume of water that seems to have flowed through Mars’ outflow channels
○To indicate data used by scientists to estimate how long ago Mars’ outflow channels were formed
○To argue that flash floods on Mars may have been powerful enough to cause tear-shaped “islands” to form
○To argue that the force of flood waters on Mars was powerful enough to shape the northern volcanic plains

A是正確答案。但為什麼不能選C？文中不是說 The onrushing water arising from these flash floods likely also formed the odd teardrop-shaped “islands” 嗎？

２。句子簡化題
These ideas remain controversial. Proponents point to features such as the terraced “beaches” shown in one image, which could conceivably have been left behind as a lake or ocean evaporated and the shoreline receded. But detractors maintain that the terraces could also have been created by geological activity, perhaps related to the geologic forces that depressed the Northern Hemisphere far below the level of the south, in which case they have nothing whatever to do with Martian water. Furthermore, Mars Global Surveyor data released in 2003 seem to indicate that the Martian surface contains too few carbonate rock layers―layers containing compounds of carbon and oxygen―that should have been formed in abundance in an ancient ocean. Their absence supports the picture of a cold, dry Mars that never experienced the extended mild period required to form lakes and oceans. However, more recent data imply that at least some parts of the planet did in fact experience long periods in the past during which liquid water existed on the surface.

Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information.
○But detractors argue that geological activity may be responsible for the water associated with the terraces.
○But detractors argue that the terraces may have been formed by geological activity rather than by the presence of water.
○But detractors argue that the terraces may be related to geological forces in the Northern Hemisphere of Mars, rather than to Martian water in the south.
○But detractors argue that geological forces depressed the Northern Hemisphere so far below the level of the south that the terraces could not have been formed by water.

答案是Ｂ。但我覺得Ｃ也可以！

謝謝各位了

秋雨荆州UID: 2903781

这句前面的破折号是解释的意思，破折号后面的东西就是解释enormous

第二题不知道原来的是哪句？

秋雨荆州UID: 2903781

楼主也可以和这个帖子的楼主讨论一下，正好你们问了同一篇https://bbs.gter.net/thread-1497570-1-1.html

月明日暗UID: 3400027

第二道题：C存在两个错误：geological forces 是depress the northern hemisphere而不是 geological forces in the northern hemisphere， 另外，是has nothing to do with water 而不是 water in the south

第一道题我明白但是讲不出来。。

baktbdUID: 3290107

秋雨荆州 发表于 2013-2-21 15:09
楼主也可以和这个帖子的楼主讨论一下，正好你们问了同一篇https://bbs.gter.net/thread-1497570-1-1.htm ...

更新了。。。。

baktbdUID: 3290107

月明日暗 发表于 2013-2-21 15:10
第二道题：C存在两个错误：geological forces 是depress the northern hemisphere而不是 geological forces ...

:L:L:L:L:L:L:L:L:L:L

baktbdUID: 3290107

秋雨荆州 发表于 2013-2-21 15:08
这句前面的破折号是解释的意思，破折号后面的东西就是解释enormous

第二题不知道原来的是哪句？

teardrop-shaped “islands”　那個-不是破折號吧:L
文中就是提到了The onrushing water arising from these flash floods likely also formed the odd teardrop-shaped “islands”，就是不知道為什麼不能選Ｃ

秋雨荆州UID: 2903781

baktbd 发表于 2013-2-21 15:20
teardrop-shaped “islands”　那個-不是破折號吧
文中就是提到了The onrushing water arising from  ...

perhaps前面的破折号

baktbdUID: 3290107

秋雨荆州 发表于 2013-2-21 15:22
perhaps前面的破折号

明解，謝謝。再問一條題，tpo 10的第８題

Wildman and Niles observed that systematic reflection on teaching required a sound ability to understand classroom events in an objective manner. They describe the initial understanding in the teachers with whom they were working as being “utilitarian … and not rich or detailed enough to drive systematic reflection.” Teachers rarely have the time or opportunities to view their own or the teaching of others in an objective manner. Further observation revealed the tendency of teachers to evaluate events rather than review the contributory factors in a considered manner by, in effect, standing outside the situation.

Helping this group of teachers to revise their thinking about classroom events became central. This process took time and patience and effective trainers. The researchers estimate that the initial training of the teachers to view events objectively took between 20 and 30 hours, with the same number of hours again being required to practice the skills of reflection.

8. How is paragraph 4 related to other aspects of the discussion of reflection in the passage?
○It describes and comments on steps taken to overcome problems identified earlier in the passage
○It challenges the earlier claim that teachers rarely have the time to think about their own or others' teaching
○It identifies advantages gained by teachers who followed the training program described earlier in the passage
○It explains the process used to define the principles discussed later in the passage

正確答案是Ａ，但Ｂ不是有提過嗎？ Teachers rarely have the time or opportunities to view their own or the teaching of others in an objective manner.