高中英语教学：-7浙江卷阅读B词汇和关键句.docx

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1、The traffic signals along Factoria Boulevard in Bellevue, Washington, generally don, t flash the same length of green twice in a row, especially at rush hour. At 9： 30 am, the full rcd/ycllow/grccn signal cycle might be 140 seconds. By 9： 33 am, a burst of additional traffic might push it to 145 sec

2、onds. Less traffic at 9： 37 am could push it down to 135. Just like the traffic itself, the timing of the signals changes.That is by design. Bellevue, a fast-growing city, just east of Seattle, uses a system that is gaining popularity around the US： intersection （十字路 口 ） signals that can adjust in r

3、eal time to traffic conditions. These lights, known as adaptive signals, have led to significant declines in both ihe trouble and cost of travels between work and home.“Adaptive signals can make sure that the traffic demand that is there is being addressed,says Alex Stevanovic, a researcher at Flori

4、da Atlantic University.For all of Bellevue s success, adaptive signals are not a cure-all for jammed roadways. Kevin Balke, a research engineer at the Texas A&M University Transportation Institute, says that while smart lights can be particularly beneficial for some cities, others are so jammed that

5、 only a sharp reduction in the number of cars on the road will make a meaningfi.il difference. Its not going to fix everything, but adaptive signals have some benefits for smaller cities,“ he says.In Bellevue, the switch to adaptive signals has been a lesson in the value of welcoming new approaches.

6、 In the past, there was often an automatic reaction to increased traffic: just widen the roads, says Mark Poch, the Bellevue Transportation Department traffic engineering manager. Now he hopes that other cities will consider making their streets run smarter instead of just making them bigger.25. Wha

7、t docs the underlined word “that” in paragraph 2 refer to?A. Increased length of green lights.B. Shortened traffic signal cycle.C. Flexible timing of traffic signals.D. Smooth traffic flow on the road.26. What does Kevin Balke say about adaptive signals?A. They work better on broad roads.B. They sho

8、uld be used in other cities.C. They have greatly reduced traffic on the road.D. They are less helpful in cities seriously jammed. 27. What can vve Icam from Bellevues success?A. It is rewarding to try new things.B. The old methods still work today.C. It pays to put theory into practice.D. The simple

9、st way is the best way.【词汇积累】1. the traffic signals交通信号灯2. signal信号3. flash闪光4. length长度5. by design有意地；故意地6. adjust调整7. adaptive适应的8. decline降低9. jammed堵塞的；拥挤的10. approach靠近；接近；接近;途径;方法11. flexible穹曲的：可变通的；灵活的12. smooth光滑的；使光滑；使顺畅13. shorten缩减14. rewarding有益的，有报酬的，有所得的15. put theory into practice 把

10、理论付诸实践【关键理解】1. The traffic signals along Factoria Boulevard in Bellevue, Washington, generally dont flash the same length of green twice in a row, especially at rush hour.翻译：2. Just like the traffic itself, the timing of the signals changes.翻译：3. These lights, known as adaptive signals, have led to

11、significant declines in both the trouble and cost of travels between work and home.翻译：5. For all of Bellevues success, adaptive signals are not a cure-all for jammed roadways.翻译：6. Kevin Balke, a research engineer at the Texas A&M University Transportation Institute, says that while smart lights can be particularly beneficial for some cities, others are so jammed that only a sharp reduction in the number of cars on (he road will make a meaningful difference.翻译：7. In Bellevue, the switch to adaptive signals has been a lesson in the value of welcoming new approaches.翻译：