试点本科英语2-unit9-textA.ppt

critical mass: 临界物质 极其重要的阶段，极其关键的阶段 back home back home notch: n.槽口, 凹口；（美）山间小路，刻痕，峡谷 vt.刻凹痕, 用刻痕计算, 开槽, 切口, 得分 notch up：（口）完成，创下，达到 e.g. notched the score on a stick notched 30 wins in a single season 在木棍上切出分数记号 在一个赛季赢了30分 back home reside: vi.1.居住(in, at); (官吏)留驻 2.(性质)存在于, 具备 (in); (权力等)属于(in) reside in: v.居住 e.g. The real power resides in the people. 真正的权力属于人民。 call in: 召集，召来，来访 call up: 打电话 call back: 召回，通知，需要（某人）返回到先前的状况或位置 call down: 挑剔，找麻烦，斥责 call for: 需要，要求 call forth: 唤起，振奋 call off：取消 back home * * * * * 1.Today in the United States, there are over 22 million adults using the Web, about half of whom access the Internet at least once a day. Meanwhile, the variety of activities on the Web is broadening at an amazing rate. There is almost no topic about which you cannot find fairly interesting material on the Web. Many of these sites are getting excellent traffic flow. Want to buy a dog? Or sell a share? Or order a car? Use the Internet. next up home N 2.Where are we going to get the time to live with the Web? In some instances, people will actually save time because the Web will make doing things more efficient than in the past, being able to get information about a major purchase, for example, or finding out how much your used car is worth, or what your cheapest way of getting to Florida is. That is easy to find on the Web, even today. next up home In other instances, people will trade the time they now spend reading the paper, or watching television, for information or entertainment they will find on the computer screen. Americans, particularly young ones, will spend less time in front of a television, more on the Web. next up home 3. One great benefit of the Web is that it allows us to move information online that now resides in paper form. Several states in America are using the Web in a profound way. You can apply for various permits or submit applications for business licenses. Some states are putting up listings of jobs- n