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高考英语阅读理解专项练习题十篇有答案解析

 

举例

Many factors contributed to the decline, said Patrick Mclntyre, an ecologist who was the lead author of the study. Woodcutters targeted big trees. Housing development pushed into the woods. Aggressive wildfire control has left California forests crowded with small trees that compete with big trees for resources(资源).

But in comparing a study of California forests done in the 1920s and 1930s with another one between 2001 and 2010, Mclntyre and his colleagues documented a widespread death of big trees that was evident even in wildlands protected from woodcutting or development.

The loss of big trees was greatest in areas where trees had suffered the greatest water shortage. The researchers figured out water stress with a computer model that calculated how much water trees were getting in comparison with how much they needed, taking into account such things as rainfall, air temperature, dampness of soil, and the timing of snowmelt(融雪).

Since the 1930s, Mclntyre said, the biggest factors driving up water stress in the state have been rising temperatures, which cause trees to lose more water to the air, and earlier snowmelt, which reduces the water supply available to trees during the dry season.

 

27. What is the second paragraph mainly about?

A. The seriousness of big-tree loss in California.

B. The increasing variety of California big trees.

C. The distribution of big trees in California forests.

D. The influence of farming on big trees in California.

28. Which of the following is well-intentioned but may be bad for big trees?

A. Ecological studies of forests.

B. Banning woodcutting.

C. Limiting housing development.

D. Fire control measures.

29. What is a major cause of the water shortage according to Mclntyre?

A. Inadequate snowmelt. B. A longer dry season.

C. A warmer climate. D. Dampness of the air.

30. What can be a suitable title for the text?

A. California's Forests: Where Have All the Big Trees Gone?

B. Cutting of Big Trees to Be Prohibited in California Soon

C. Why Are the Big Trees Important to California Forests?

D. Patrick Mclntyre: Grow More Big Trees in California

 

【答案】27. A    28. D    29. C    30. A

【解析】

本文为说明文，根据一项研究表明，自20世纪30年代以来，加州已经失去了一半的大树，气候变化似乎是其主要因素。

【27题详解】

主旨大意题。在第二段中，作者用具体数据说明了大树损失在各个地区的严重程度，没有任何地区幸免或不受影响，故选A。

【28题详解】

推理判断题。根据第三段最后一句Aggressive wildfire control has left California forests crowded with small trees that compete with big trees for resources（资源）.可知，野火控制在控制了森林大火的同时，使得加利福尼亚的森林里挤满了小树，它们与大树争夺资源，这对大树产生了不利的影响，故选D。

【29题详解】

细节理解题。根据最后一段the biggest factors driving up water stress in the state have been rising temperatures, …, and earlier snowmelt, …可知，造成加州水资源短缺的最大因素是气温的上升，以及较早的融雪，故选C。

【30题详解】

主旨大意题。通读全文可知，自20世纪30年代以来，加州已经失去了一半的大树，文章分析了引起该现象的几个主要因素。全文围绕“加州森林的大树都去哪儿了”话题展开，故选项A符合题意。