【題目】Controlling traffic is a complex and high cost problem in many developed countries. It becomes more difficult and costly with the ever- increasing number of cars on the roads. But scientists and students at the CATT, at the University of Maryland are working to solve this problem. They are using simulation(模擬) technologies to help government and private business control and react to changing traffic conditions.

The online economics magazine Forbes.com says traffic congestion(擁擠) cost Americans $ 124 billion in 2014 and that number could rise to $ 186 billion by 2030.

Bui scientists at the CATT lab are trying to reduce those costs. They are developing a system that helps traffic managers. planners, emergency workers and businesses plan and react better. Michael Pack is CATT director. He says the system is important to help emergency workers, or first responders，reach an accident area faster.

The CATT Lab collects information from many sources, including roadside devices, GPS (global positioning system) equipment and wireless phones.

About 60 students and 30 software developers observe traffic flow and manage the computer servers at all times. They also work to develop software and applications that can help traffic run smoother and safer, Some of them turn the information gathered into so-called "visualizations". These visual representations help emergency workers better understand what is happening.

The center shares its findings with firefighters, police，Transportation departments and the military. They also share information with universities and transportation company. The technology company Google uses the data for its traffic-related websites. Michael Pack says, the information is then shared with anyone who wants to help traffic run more smoothly.

Mr. Pack says the goal is to help develop an intelligent system of road signals that will communicate with each other and with vehicles on the road.

【1】The second paragraph is written to

A. attract more people to look through Forbes.com.

B. tell readers what Forbes.com says on its website

C. show how much money controlling costs America

D. prove it is very expensive for some developed countries to control traffic

【2】What benefit can emergency workers get from the system developed by the CATT lab?

A. They can be safer.

B. They can reach an accident area faster.

C. They can get more advice from people.

D. They can share their information with others.

【3】Which of the following is NOT true about the developers and the students at the CATT?

A. They observe traffic flow continuously.

B. They develop software and applications.

C. They control the computer servers occasionally.

D. They change the information gathered into visual image.

【4】1n which column of the newspaper can you read this text?

A. Daily life. B. Science. C. Education. D. Exploration.

【答案】

【1】D

【2】B

【3】C

【4】B

【解析】

試題分析：據(jù)世界衛(wèi)生組織統(tǒng)計(jì)，每年數(shù)以百萬計(jì)的人死于室內(nèi)空氣污染，其主要原因是質(zhì)量不好的煤爐造成的污染。

【1】D 寫作意圖題。根據(jù)第一段Controlling traffic is a complex and high cost problem in many developed countries. 在許多發(fā)達(dá)國家，控制交通是一個(gè)復(fù)雜且成本高的問題，第二段以網(wǎng)上經(jīng)濟(jì)學(xué)雜志Forbes.com 為例，證明控制交通成本高。故選D項(xiàng)

【2】B細(xì)節(jié)理解題。根據(jù)第三段the system is important to help emergency workers, or first responders，reach an accident area faster.，該系統(tǒng)是很重要的，可以幫助救援人員或現(xiàn)場(chǎng)急救員，更快地到達(dá)事故現(xiàn)場(chǎng)。故選B項(xiàng)

【3】C推理判斷題。 根據(jù)第五段About 60 students and 30 software developers observe traffic flow and manage the computer servers at all times.約60名學(xué)生和30名軟件開發(fā)人員一直觀察流量和管理計(jì)算機(jī)服務(wù)器，可知C選項(xiàng)是錯(cuò)誤的。故選C項(xiàng)

【4】B主旨大意題。根據(jù)第一段They are using simulation(模擬) technologies他們使用模擬

技術(shù)，可知與科學(xué)有關(guān)。故選B項(xiàng)。

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