2. 外语
  3. A webcam is a digital camera that sends video images to other computer users． It’s about the【C1】______of a pool ball and typical

A webcam is a digital camera that sends video images to other computer users． It’s about the【C1】______of a pool ball and typical

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问题     A webcam is a digital camera that sends video images to other computer users． It’s about the【C1】______of a pool ball and typically【C2】______on top of your computer monitor．Once the webcam is【C3】______to the USB port of your computer with the necessary software，【C4】______images of you can be sent to one or more users over the Internet【C5】______an instant messaging (IM)service．
    A webcam costs about $50．More expensive models come with added【C6】______,  such as better picture resolution．TWo leading makers，Logitech and Creative, offer a range of models,【C7】______software is included．There is no extra Internet【C8】______to send or receive video images, though you’ll have to【C9】______for a flee instant messaging service．Everyone can see and hear one another in【C10】______time．Grandparents can see their grandkids more【C11】______．Webcams can work with almost any computer bought in the past five years and can【C12】______long distance phone bills．
  【C13】______you have broadband, that is, a high-speed cable-modem or DSL connection, images may【C14】______a long time to download，【C15】______a slide show rather than a movie．While webcams are easy to link to your computer, learning to【C16】______the software can take time．You have to make some rearrangement with the configurations．
  【C17】______you have a 56k modem and the people you want to【C18】______won’t mind seeing live shots instead of perfect video, a webcam is still fun．【C19】______before you buy, be sure everyone【C20】______for the same IM service．
【C4】
选项 A、live
B、living
C、lively
D、lovely
答案A
解析 词形和词义的辨析。这儿个词长得很像，但四个词作为形容词时，意 义很不相同。[A] live现场的；[B] living活着的；[C] lively充满热情的，有活 力的；[D] lovely可爱的。根据常识可知，网络摄像头所传送的图像是现场 的人或物的活动或状态，相当于现场直播，因此是现场的图像，故选[A] 。
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