2. 公务员
  3. Air pollution is caused by many things. Great clouds of smoke come from factories. Cars send smoke and fumes into the air. Burni

Air pollution is caused by many things. Great clouds of smoke come from factories. Cars send smoke and fumes into the air. Burni

admin2016-01-29  37
问题     Air pollution is caused by many things. Great clouds of smoke come from factories. Cars send smoke and fumes into the air. Burning waste fills the air with bits of dirt. Even burning leaves add smoke to the air. Sometimes, planes cannot find their landing spots through smoke. Smoke of all kinds is bad to breathe and can do great harm to the body.
    Still, we cannot live without air. We must find a way to clean the air we have.
    In time, we may have factories that are run by atomic energy. Our cars may run on smoke-free electric power. Scientists are also working on new ways to help the oil burned by cars from making fumes. Waste may be burned in the sand on ocean floors.
    These changes might keep our air clean in the years to come. But until then, many scientists are looking for ways to make air cleaner now.
Scientists are now working on ways to______.
选项 A、keep planes from flying
B、bury sand on ocean floors
C、stop air pollution
D、burn leaves without smoke
答案C
解析 根据But until then，many scientists are looking for ways to make air cleaner now．可知答案选C。
转载请注明原文地址:https://kaotiyun.com/show/UkQq777K
本试题收录于： 小学英语题库教师公开招聘分类
0

小学英语

教师公开招聘

相关试题推荐
随机试题
最新回复(0)