1.I' m jumping out of my skin here. "to be jumping out of sb' s skin "＂心惊肉跳，如坐针毡，坐立不安，不塌实的感觉＂
eg: I was jumping out of my skin worrying about my exam results.我心惊胆战很担心考试结果．
That ghost movie had me jumping out of my skin. 这部鬼片吓得我心惊肉跳．
2.I can name some forward presidents and some backward ones. "forward "＂a.积极的,受人欢迎的＂
eg: Reducing the tax burden is a very forward policy. 减税是个积极的政策．
He has some pretty forward ideas. 他总有些很超前的想法．
3.Did you improve your mind with all this reading? "improve sb' s mind "＂提高思想境界／思维观念，完善心灵＂
eg: Comic books don' t really improve the mind. 漫画书不能真正提高人的思维．
You should try going to the opera to improve your mind. 你该多听些歌剧来提高一下修养．