31.If we expect ________ much cleaner world, we should attract ________ world's attention to protect the world.
A.a; a B.a; /
C.a; the D.the; /
答案与解析:C 句意:如果我们期盼一个更加清洁的世界,我们需要得到世界对于保护地球的关注。第一空泛指一个更加清洁的世界,故用不定冠词a; world为专有名词,其前需加定冠词the。
32.It's not surprising that Mr. Johnson suddenly fell ill dying. ________ he is already at the age of eighty.
A.Above all B.In all
C.At all D.After all
答案与解析:D after all常用于句首或句中,起加强语气的作用,常译为“毕竟;终究”,有时还可译为“别忘了,应该记住”。above all“首先”;in all“总共”;at all“丝毫,根本”。