综合检测(三)
Unit 3 Computers
(时间：100分钟；满分：120分)
Ⅰ.单项填空(共15小题；每小题1分，满分15分)
1．This problem was beyond our ability and we couldn't ________ it by ourselves.
A．simplify B．fancy
C．imagine D．solve
2．He runs every day.________，he has lost weight and become healthier.
A．However B．In fact
C．As a result D．In other words
3．(2013·朔州高一质检)The field research will take Joan and Paul about five months；it will be a long time ________ we meet again.
A．after B．before
C．since D．when
4．The ________ of the new technology has greatly increased the production.
A．usage B．application
