单选题 . ① Except in special situations, human beings' battle with mosquitoes will not be won by a simple campaign to eliminate the insects. ②Social tradition and habits, it seems, do much to ensure continual contact between mosquitoes and people. ③On the slopes of Mount Kilimanjaro, for example, mosquitoes breed in the leaf axils of a plant called dracaena. ④Although dracaena is not a food plant for humans, its use as a hedge or boundary marker is deeply rooted in tradition. ⑤Here, as in other parts of the world, human behavior ensures contact and conflict between people and mosquitoes.
① I am not advocating a policy of live and let live; we already know that living with mosquitoes is very unpleasant. ②But until we accomplish the difficult task of understanding how our habits often perpetuate—even create—our problems, efforts to resolve our battle with mosquitoes will probably fail.47. The passage is primarily concerned with ______

A、 Discussing shortsighted proposals to eliminate problems with mosquitoes
B、 Outlining ways in which people can alleviate the problems caused by mosquitoes
C、 Arguing that social traditions can perpetuate people's problems with mosquitoes
D、 Discussing various ways in which people come into contact with mosquitoes
E、 Suggesting how the breeding habits of mosquitoes create problems for people.

【正确答案】 C

【答案解析】 C：本题属于主旨题，选择和文章3s版本相对应的选项即可，因此选项C正确。
A：文中未提及shortsighted proposals。
B：文中未提及alleviate the problems。
D：“人类和蚊子产生接触的不同方法”并不是文章的重点。
E：breeding habits只是例子中的细节。