关于一道TPO23的阅读题，求解答~~~~

MD100UID: 3313921

Cities, then, are warmer than thesurrounding rural areas, and together they produce a phenomenon known as theurban heat island. Heat islands develop best under particular conditionsassociated with light winds, but they can form almost any time. The precise configurationof a heat island depends on several factors. For example, the wind can make aheat island stretch in the direction it blows. When a heat island is welldeveloped, variations can be extreme; in winter, busy streets in cities can be1.7℃ warmer than the side streets. Areas near traffic lights can besimilarly warmer than the areas between them because of the effect of carsstanding in traffic instead of moving. The maximum differencesin temperature between neighboring urban and rural environments is called theheat-island intensity for that region. In general, the larger the city, the greater itsheat-island intensity. The actual level of intensity depends on such factors asthe physical layout, population density, and productive activities of ametropolis.


[url=]8. According to paragraph 4, what can explain the substantialdifferences in temperature between one area and other within awell-developed heat island?[/url]
A.     The overall size of the heatisland that includes the two reasons
B.      The intensify of the heatisland that includes the two areas
C.      Differences between the two areas in the general level ofactivity, including traffic
D.     Differences between the twoareas in the insulation materials used in construction

应该选C，我想知道，B为什么不对？？？

Aaron_UID: 3368803

不是B啊，B选项totally irrelevant.题目问的是在一个已经形成的城市热岛中的不同区域的温度差异如何解释，至于intensity的问题是在解释城郊温度差时提到的概念，跟题目没有关系的。答案在这句When a heat island is welldeveloped, variations can be extreme; in winter, busy streets in cities can be1.7℃ warmer than the side streets. Areas near traffic lights can besimilarly warmer than the areas between them because of the effect of carsstanding in traffic instead of moving.