题目内容
Sinking in the cheers of people, David walked off the stage, tears dropping he could stop them．
| A．after | B．when | C．until | D．before |
D
解析
新课标阶梯阅读训练系列答案(2012·南京高二检测) Some people are worrying about the possibility _______ mobile phones could be responsible for a range of illnesses, from rashes (皮疹) to brain tumors.
| A．that | B．why |
| C．how | D．whether |
There is no way of knowing why one man makes an important discovery ______ another man, also intelligent, fails.
| A．since | B．if | C．as | D．while |
I have watched a number of movies recently,______ none of them have impressed me．
| A．but | B．or | C．so | D．for |
______ the ancient Egyptians built the pyramids puzzled people for centuries.
| A．Whether | B．What | C．How | D．Where |
_________ we have been classmates for three years, she hasn’t left me much impression, so I can’t remember her after graduation.
| A．Since | B．Although | C．Because | D．Unless |
_______ I’m not sure of winning the match, I will have a try anyway.
| A．While | B．Before | C．Once | D．Since |
You cannot take back your words ______ they are out of your mouth.
| A．before | B．whether | C．once | D．while |
The survey shows that ______ we are enjoying less and less good sleep, rates of heart diseases have risen rapidly．
| A．while | B．although | C．if only | D．as though |