答案 B
解析 细节理解题。根据文章第二段可知,光污染主要是人造光引起的,因此B项正确。
7.The underlined part “nocturnal animals” probably means
.
A.animals active at night
B.animals feeding on plants
C.animals sensitive to light
D.animals enjoying wandering
答案 A
解析 词义猜测题。画线部分所在段落提到晚上的灯光对这些动物的活动有影响,因此这些动物应该是喜欢晚上活动的动物。
8.What is the proper way to reduce light pollution?
A.Making outdoor lighting point upwards.
B.Using clean energy to produce electricity.
C.Using more outdoor lighting.
D.Not using too bright light in the house.
答案 D
解析 细节理解题。根据文章最后一段中的“use only the required light fixtures for home and offices”可知D项正确。
.完形填空
Tom lost his arms in an accident that cost his father’s life.Since then,he had to
9
on the arms of his younger brother.To take care of him,his younger brother became his
10
,never leaving him alone for years.Except for writing with his
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