高二英语1.At present ,nearly one half of all new American marria

高二英语
1.At present ,nearly one half of all new American marriages end in divorce,with____results for their children.
A.troubled B.to trouble C.being troubled D.troubling
2.If you don't understand what is being taught,ask your teacher to explain and____until you do understand
A.aren't satisfied B.aren't satisfying C.don't be satisfying D.don't be satisfied
3.The professor looked at me for a long time,_____with his eyes if I was serious about the question.
A.to ask B.asked C.asking D.having asked
4.One day people will seen____out of major cities and back into towns and villages
A.moved B.move C.moving D.to be moving
5.It is wonder that the rescure workers_____the boy alive from thr ruins of the earthquake after fifteen days.
A.drove off B.dug up C.picked up D.ended up
麻烦各位了,希望能有详细的解释
还有啊,最近被非谓语动词给难倒了,不知有哪位高手可以用最简单的方式向我解释一下什么叫非谓语,不要电脑上找的,如可可以,希望能有学过的人的见解.谢谢