Model:
——Lynn left no stone unturned in her research, and handed in an excellent paper. (Lynn全力以赴做她的研究，交了一篇优秀的论文。)
42)on cloud nine 沉浸在幸福之中;非常高兴
Model:
——Marcia looks like she’s on cloud nine. Do you know what made her so happy? (Marcia好象沉浸在幸福之中。你知道她为什么这么高兴吗?)
——She just had a paper accepted for publication. (她有一篇文章要发表了。)
43)on the tip of one’s tongue 一时想不起来，话到嘴边又忘记
Model:
——Are you sure you can’t remember the name of that record? (你肯定记不起来那张唱片的名字吗?)
——It’s just on the tip of my tongue! (我就是一时想不起来了。
44)reach the bottom of the barrel 用完，弹尽粮绝
Model:
——Don’t you have any other clean shirts? (你还有其它干净衬衫吗?)
——I guess I’ve reached the bottom of the barrel. (我想我已经用完了。)
45)rub sb. the wrong way 使(某人)有点恼火;惹怒;引起反感;烦扰，打搅
Model:
——What do you think of our new economics instructor? (你觉得新经济学老师怎么样?)
——I don’t know. Something about him rubs me the wrong way. (不知怎么的，他有点让我反感。)
46)scratch the surface 只懂皮毛，很不了解(通常和限制性副词如only, hardly等词连用)
Model:
——You’ve certainly done a lot of research for your project. (你显然对你的课题做了不少研究。)
——It seems like a lot, but actually I’ve only scratched the surface. (看上去不少，但事实上我只懂一些毛皮。)
47)up in the air 尚未决定的;捉摸不定的;悬而未决的
Model:
——Her plans for the weekend are still up in the air. (她尚未决定如何度过这个周末。)
48)wear and tear 磨损;消耗
Model:
——Why do you always put on slippers when you go into your apartment? (为什么你老是一进公寓就穿上拖鞋?)
——It saves wear and tear on the carpet. (拖鞋不磨损地毯。)
49)with flying colors 大获全胜;胜利地
Model:
——How did Ellen do on her Ancient History exam? (Ellen古代史考得怎么样?)
——She passed with flying colors. (她考得好极了。)
50)get off on the wrong foot 开始就不顺利;一开始就犯了个错误
Model: [1995.5.]
——I hate to get off on the wrong foot. (我讨厌一开始就犯错误。)