三、阅读短文,从方框中选出能填入文中空白处的最佳选项,选项中有两项为多余选项
Every year, millions of birds are killed or hurt because they fly into buildings. Why does this happen? We can see it everywhere in cities.
Birds used to live in the wild, such as forests and wetlands. They see reflections (映照出的影像) of trees and flowers on the windows and buildings covered with glass, without knowing they are not real.
Some birds fly at night. They use the moon and stars to help guide them in the right direction. Tall buildings with lights on at night can confuse (使迷惑) the birds. The birds fly toward the lights and crash into buildings. On many mornings, there are dead birds lying on the ground.
Many office buildings now turn off their lights at night. This helps reduce the number of birds that fly into buildings and it also helps save energy.
A. The answer is the glass.
B. So they have no idea what glass is.
C. As a result, they fly right into the glass.
D. People are now trying to solve the problem.
E. What if we build houses with other materials?
F. In this way, they can avoid crashing into glass.
G. This is a big problem, especially on foggy or rainy nights.
1. ______ 2. ______ 3. ______ 4. ______ 5. ______