TTGWD-6-15

15。
            Driving the steep road to the mountaintop Inca ruins of Machu Picchu is potentially dangerous and hiking there is difficult.  Now the Peruvian government is installing a cable car that will make access much easier, and hence result in a large increase in tourism.  However, since the presence of large numbers of tourists tends to accelerate the deterioration of a site, installation of the cable car is certain to result in harm to the ruins.

A  The daily number of tourists that are expected to take the cable car to Machu Piccu is smaller than the original resident population of Incas.

B  The construction of the cable car terminal at Machu Picchu will require the use of potentially damaging heavy machinery at the site.

C

D  Natural weathering will continue to be a more significant cause of the deterioration of Machu Picchu than tourist traffic.

E  The cable car will replace the tour buses whose large wheels and corrosive exhaust at present do significant damage to the site.

这题我选的D，但是答案是E

D不是说了气候才是毁坏经典的重要因素么，所以不管人会不会多，景点都会被毁坏，cable car的安装也就不会导致景点的损害了。请牛牛解释~~~~

up up

请大家多多指点呐~~~~~

文中的主要矛盾是在说cable car 造成景点的毁坏，D离题有点远了。而且即使自然因素是主要原因，cable car加速环境恶化的可能也没有被排除，只不过是起次要作用而已。