文档介绍：2008年9月公共英语三级真题及答案(无听力)
Section Ⅰ prehension
1—25(略)
Section Ⅱ Use of English
Directions: Read the following text. Choose the best word or phrase for each numbered blank and mark A, B, C or D on ANSWER SHEET 1.
A webcam is a digital camera that sends video images to puter users. It’s about the (26) of a golf ball and typically (27) on top of puter monitor. Once the webcam is (28) to the USB port of puter with the necessary software, (29) images of you can be sent to one or more users over the (30) an instant messaging(IM) service.
A webcam costs about $50. More expensive e with added (31) , such as better picture resolution. Two leading makers, Logitech and Creative, offer a range of models, (32) software is included. There is no extra (33) to send or receive video images, though you’ll have to (34) for a free instant messaging service. Everyone can see and hear one another in (35) time. Grandparents can see their grandkids more (36) Webcams can work with almost puter bought in the past five years and can (37) long distance phone bills.
(38) you have broadband, that is, a high-speed cable-modem or DSL connection, images may (39) a long time to download, (40) a slide show rather than a movie. While webcams are easy to link to puter, learning to (41) the software can take time. You have to make. some rearrangement with the configurations.
(42) you have a 56k mod