【单选题】{{B}}Passage Two{{/B}}
Students of human migration speak of "push" and "pull" factors, which influence an individual’s decision to move from one place to another. Push factors are associated with the place of origin.A、push factor can be as simple and mild a matter as difficulty in finding a suitable job, or as traumatic as war, or severe famine. Obviously, refugees who leave their homes with guns pointed at their heads are motivated almost entirely by push factors (although pull factors do influence their choice of destination).
Pull factors are those associated with the place of destination. Most often these are economic, such as better job opportunities or the availability of good land to farm. In general, pull factors add up to an apparently better chance for a good life and material well-being than is offered by the place of origin. When there is a choice between several attractive potential destinations, the deciding factor might be a non-economic consideration such as the presence of relatives, friends, or at least fellow countrymen already established in the new place who are willing to help the newcomers settle in.
Besides push and pull factors, there are what the sociologists call "intervening obstacles."Even if push and (or) pull factors are very strong they still may be outweighed by intervening obstacles, such as the distance of the move, the trouble and cost of moving, the difficulty of entering the new country, and the problems likely to be encountered on arrival. The decision to move is also influenced by "personal factors" of the potential migrant. The prospect of packing up everything and moving to a new and perhaps very strange environment may appear interesting and challenging to an unmarried young man and appallingly difficult to a slightly older man with a wife and small kids. Similarly, the need to learn a new language and customs may excite one person and frighten another. Regardless of why people move, migration of large numbers of people causes conflict. The United States and other western countries have experienced adjustment problems with each new wave of immigrants. It has usually taken several decades for each group to be accepted into the mainstream of society in the host country.
B．push and pull factors are less important than personal factors of the migrants
C．push factors affect the older people with families more than unmarried young people
D．pull factors bring about fewer adjustment problems in the new settlements
网考网参考答案：A
网考网解析：
这是一道推论题。文章最后一段指出：除了驱动和吸引因素之外，还存在社会学家所说的“干扰因素”；即使驱动和(或)吸引因素影响力很大，干扰因素仍然可能超过它们成为主要因素；迁移的决定也受到可能的迁移者“个人因素”的影响。由此可知，驱动和吸引因素被其他因素复杂化了。A说“驱动和吸引因素被迁移中的许多其他因素复杂化了”，这与文章的意思符合。文中没有比较驱动、吸引因素与个人因素，所以B不对。影响C的是个人因素，不是驱动因素，所以C不对。与D有关的信息是该段的倒数第二句话，文中是说“在每一次新的移民浪潮后，美国和其他西方国家都面临着适应问题”，并没有说是哪种因素影响的，所以D不对。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>
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