一、单元扣点
Ⅰ.根据句意，用所给单词的适当形式填空
impress destination congested limit explore,solve airconditioned return receipt registration
1．They were marching forward despite the heavy rain because they had to reach the ________ before dark.
2．They will build another ring road to solve the problem of traffic ________ in the rush hour.
3．After the accident, the driver drove his car away. Fortunately, video cameras recorded his ________ number.
4．We are sure that the 28th Olympic Games to be held in Beijing are surely an ________ one.
5．Welcome to the Blue Sea Hotel. We offer you spacious, ________ and fullyserviced rooms.
6．I have decided to buy a ________ ticket not a single for it is cheaper.
7．You should remember to ask for a ________ after you pay for what you buy.
8．The clever boy came up with a ________ to the difficult problem.
9．Man has already begun ________ the Mars, hoping to find signs of life there.
