问题
选择题
Social attention should be paid our earth from .
A． to prevent; being polluted
B． to preventing; polluted
C． to prevent; polluting
D． to preventing; being polluted
答案
答案：D
考查固定结构以及被动语态。Pay attention to sth/doing sth注意…；第一空是被动语态；prevent sb (from) sth/doing sth阻止某人做某事；本题也是被动语态。句意：我们应该特别注意要阻止我们的地球被污染。