题目内容
—How was that?
—I was chatting on line ______ the power went out.
| A．because | B．while | C．as | D．when |
D
解析试题分析：考查连词：A. because因为，B. while当…时候，虽然，然而，C. as随着，因为，正如，D. when当…时候，句意：怎么了？--我正在聊天这时停电了。When引导时间状语，表示时间点，这里翻译成“这时”，while引导时间状语从句，表示“一段时间”，as引导时间状语从句，表示“两个动作同时发生”，选D。
考点：考查连词
We can give you a lift to the airport _______ you don’t mind the crowdedness, for there have already been four of us in the car.
| A．unless | B．though | C．provided | D．until |
How can you expect him to make any progress _____ you never give him a chance to have a try?
| A．when | B．unless | C．even though | D．until |
He’s got himself into a dangerous situation______he is likely to lose control over the plane.
| A．where | B．which | C．while | D．why |
We will do it ourselves ________asking others to help.
| A．instead of | B．instead | C．but | D．however |
He is so busy. He cannot afford enough time with his son ____he wants to.
| A．even if | B．as if | C．because | D．before |
I had been looking for the book for two days _______ I found it at last.
| A． until | B． when | C． while | D．before |
It is uncertain side effect the medicine will bring about , though about one thousand patients have taken it.
| A．that | B．whether | C．what | D．how |
---- Oh, it’s raining hard outside. Do you think the milkman will arrive?
---- Of course. He will come on time ________ it rains.
| A．in case | B．as long as | C．ever since | D．even though |