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exercise 2 on P73
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exercise 4 on P74Complete the sentences, using the words or phrases in bracket, Make additions or changed where necessary.2. Learning in the information ____________ really convenient and efficient. With your computer ______________________ Internet, you can easily obtain _________________ resources relevant to your research.3. Detective, who believe more than one person is behind the constant attacks in _______________, are using ______________ computer ___________ to ________________ specific behavior an situations. However, they are also aware that they shouldn't rely too much on comprter because it may _______________ at times.
exercise close 1. Text-related on P 77（1）show that crime in （2）areas is now rising faster than in the cities. The (3) when the countryside (4) safey and security has long gone. No longer is it safe anywhere to go out leaving the door (5) . We all fell (6) and seek to strengthen the (7) we use to hold criminals at bay. These can range form old dfashioned bolts and bars to the latest (8） devices. A moment's (9), however, is enough to bring us face to face with the following puzzle: we may have locked the evils out, but in doing so we have locked ourselves in. This hardly seems a (10) way of life.
__________改造蒸汽机，发明了“由与汽缸脱离的单独的冷凝器”的发动机，1769年登记了专利。
________的诞生，预示着一个新时代的来临，因此引发了一场波及欧洲乃至世界的产业革命，人称第一次技术革命。
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