2017届高三英语一轮基础阅读理解训练（3）及答案_高考复习指南

2017届高三英语一轮基础阅读理解训练（3）及答案

　　A. The wavelengths of the two are equal.

　　B. The wavelength of Wave 1 is 10 times longer than that of Wave 2.

　　C. The wavelength of Wave 2 is longer than that of Wave 1.

　　D. The wavelength of Wave 1 is longer than that of Wave 2.

　　答案解析：答案为D。本题为计算题。按照后文提到的公式 “Speed = wavelength × frequency” 即可计算出答案为D。

　　【山东省潍坊市2017高考英语一模试题】B

　　Starting in l972，the National Park Service established a policy for forest fires calle Natural Burn．It was acknowthat some forest fires，such as those caused by lightning were necessary for forests to maintain balanced ecosystems， the fire should be allowed to burn．Howevera big fire in Yellowstone National Park in l988 caused this policy to be abandoned since the fire was initially allowed to burn yet soon out of control．As a result，the fiof l988 destroyed much of Yellowstone，which is America’s oldest and most beloved nationpark．Massive aas of plants were destroyed，and large empty spaces and acres of burned ablackened trees greeted visitors．The rivers and streams were choked with ash，and tecosystem of the park was changed beyond repair.

　　In addition，great numbeof animals were killed by the fires that bumed out of control. The fires were driven by high winds，moving as many as ten miles a day．Many small animadied in the flames．The fires’ rapid advances gave the wildlife little chance to escapeEven today，few of these small forest animals have returned t live in the park. In the years immediately following the fires，the numbers of visitors declined rapidly．No one was interested in seeig a blackened and treeless park on vacation．Yellowstone had previously been famous for its amazing views and unique geological formations such as the geyser Old FaithfulBut now its reputation as America's wonder is damaged permanently.