句型转换(5分)

小题1:What he said is impossible.(反意问句)

What he said is impossible, ________ __________?

小题2:Tom is very careless, he didn’t pass the driving test.(保持句意基本不变)

Tom isn’t _______ _________ to pass the driving test.

小题3:They look down on the poor, they are not right.(保持句意基本不变)

It’s ________ for them________ look down on the poor.

小题4:He is so weak that he can’t walk any more.（保持句意基本不变）

He is _______ weak _______walk.

小题5:We’ll get there in a few hours.(划线提问)

_______ ________ will you get there?

读下图，完成下列问题。

随着时间的推移，地球上出现极夜现象的范围将（）（扩大或缩小）。