1.The research requires more money than__1__.
A. have been put in
B.has been put in
C.being put in
D. to be put in
2.Overpopulation poses a terrible threat to the human race. Yet it is probably__2__a threat to the human race than environmental destruction.
B. not more
C. even more
D. much more
3.It is not uncommon for there__3__problems of communication between the old and the young.
D. to be
4.__4__at in his way, the situation doesn’t seem so desperate.
D. To look
5.It is absolutely essential that William__5__his study in spite of learning difficulties.
[解析]:看新编语法教程,里面说这里than后面是省略了it,还原应该是..than it has been put in
也就是说下句应该是一个"否定"上句的句子.,而not more ...than的意思就是 与其说是A ,不如说是B.
这句话.Yet it is probably not more a threat to the human race than environmental destruction.就是与其说是威胁了人类发展,还不如说是威胁了环境...
[解析]: 语法课讲了多少遍,for there to be,of there being.
[解析]:让我们做最简单的还原,这里的the situation 是逻辑主语,如果the situation looked at in his way.群众的looked是过去时,主动时态,而 the situation 是"被"看待的.怎么会是主动的呢?