年底大贴——TPO阅读疑难问题汇总解答

润舞无声UID：2740896

斑竹辛苦了!
tpo3
Depletion of the Ogallala Aquifer
Paragraph 5—6：The reaction of farmers to the inevitable depletion of the Ogallala varies. Many have been attempting to conserve water by irrigating less frequently or by switching to crops that require less water.█ Other, however, have adopted the philosophy that it is best to use the water while it is still economically profitable to do so and to concentrate on high-value crops such as cotton.█ The incentive of the farmers who wish to conserve water is reduced by their knowledge that many of their neighbors are profiting by using great amounts of water, and in the process are drawing down the entire region’s water supplies.█

In the face of the upcoming water supply crisis, a number of grandiose schemes have been developed to transport vast quantities of water by canal or pipeline from the Mississippi, the Missouri, or the Arkansas rivers. █Unfortunately, the cost of water obtained through any of these schemes would increase pumping costs at least tenfold, making the cost of irrigated agricultural products from the region uncompetitive on the national and international markets. Somewhat more promising have been recent experiments for releasing capillary water (water in the soil) above the water table by injecting compressed are into the ground. Even if this process proves successful, however, it would almost triple water costs. Genetic engineering also may provide a partial solution, as new strains of drought-resistant crops continue to be developed. Whatever the final answer to the water crisis may be, it is evident that within the High Plains, irrigation water will never again be the abundant, inexpensive resource it was during the agricultural boom years of the mid-twentieth century.

13．Look at the four squares [█] that indicate where the following sentence could be added to the passage.
But even if uncooperative farmers were to join in the conservation efforts, this would only delay the depletion of the aquifer.
Where would the sentence best fit? Click on a square to add the sentence to the passage.


为什么选C不选B呢? 开头的"But even if"有点诡异啊...不知道它要转折什么..B前面那句和C前面那句说的都是一些不好的现象啊..
请指教!

润舞无声UID：2740896

再来请教个问题哈~
tpo13
Types of Social Groups

Paragraph 2：People are bound within relationships by two types of bonds: expressive ties and instrumental ties. Expressive ties are social links formed when we emotionally invest ourselves in and commit ourselves to other people. Through association with people who are meaningful to us, we achieve a sense of security, love, acceptance, companionship, and personal worth. Instrumental ties are social links formed when we cooperate with other people to achieve some goal. Occasionally, this may mean working with instead of against competitors. More often, we simply cooperate with others to reach some end without endowing the relationship with any larger significance.

4. Which of the following can be inferred about instrumental ties from the author's mention of working with competitors in paragraph 2?
○ Instrumental ties can develop even in situations in which people would normally not cooperate.
○ Instrumental ties require as much emotional investment as expressive ties.
○ Instrumental ties involve security, love, and acceptance.
○ Instrumental ties should be expected to be significant.

为什么选第一个呢?原文哪里说了不cooperate的人也是属于Instrumental ties呢?

还有要确认一下答案,还是这篇第12题
12. Look at the four squares [■] that indicate where the following sentence could be added to the passage.
People who do not live alone, for example, tend to make healthier life choices and develop fewer pathologies than people who live by themselves.
Where would the sentence best fit?


应该选什么啊?

多谢帮忙啦~!