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问题 选择题

下图是某地山体滑坡后堵塞河道形成堰塞湖的影像。读图回答下列问题。

小题1:图中堰塞体垮塌后可能会淹没下游沿岸居民点．可快速确定需要转移人口区域的技术是

A．遥感( RS)

B．地理信息系统( GIS)

C．全球定位系统( GPS)

D．北斗导航系统(BDS)小题2:图中甲、乙、丙、丁四处海拔由高到低的排序是

A．甲>乙>丙>丁

B．甲>丙>丁>乙

C．乙>丁>丙>甲

D．乙>丙>甲>丁

答案

小题1:B

小题2:D

题目分析：

小题1:地理信息系统( GIS)可以利用数据模拟预测自然灾害影响的区域范围、危害程度，给受灾人员、财产的安全有效转移提供决策依据，故答案选B。

小题2:从图中可以看出乙接近于山上的雪线，海拔最高，丙高于堰塞湖湖面，甲位置与堰塞湖湖面高度相当，丁位于堰塞湖下游，海拔最低，故答案选D。

问答题 简答题

举出几种常见叶甲种类及危害寄主，说明叶甲类害虫的防治方法。
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单项选择题

In the United States, older people rarely live with their adult children. But in many other cultures children are expected to care (1) their aged parents. In some parts of Italy, the percentage of adult children who (2) with their parents (3) 65 to 70 percent. In Thailand, too, children are expected to take care of their elderly parents; few Thai elderly live (4) . What explains these differences in living arrangements (5) cultures Modernization theory (6) the extended family household to low levels of economic development. In traditional societies, the elderly live with their children in large extended family units for economic reasons. But with modernization, children move to urban areas, leaving old people (7) in (8) rural areas. Yet modernization theory cannot explain why extended family households were never common in the United States or England, or why families in Italy, which is fully modernized, (9) a p tradition of intergenerational living. Clearly, economic development alone cannot explain (10) living arrangements. Another theory associated intergenerational living arrangements with inheritance patterns. In some cultures, the stem family pattern of inheritance (11) . (12) this system, parents live with a married child, usually the oldest son, who then (13) their property when they die. The stem family system was once common in Japan, but changes in inheritance laws, (14) broader social changes brought (15) by industrialization and urbanization, have (16) the (17) .In 1960 about 80 percent of Japanese over 65 lived with their children; by 1990 only 60 percent did-a figure that is still high (18) U.S. standards, but which has been (19) steadily. In Korea, too, traditional living arrangements are (20) : the percentage of aged Koreans who live with a son declined from 77 percent in 1984 to 50 percent just 10 years later. Although most elderly Koreans still expect to live with a son, their adult children do not expect to live with their children when they grow old.

（4）是（）

A.lone

B.alone

C.lonesome

D.lonely
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