2022年双语学习报答案九年级,我们目前整理分享关于2022年双语学习报答案九年级及其参考答案,2如需答案 请关注微信公众号：考不凡/直接访问www.kaobufan.com(考不凡)
1、2022年双语学习报答案九年级
2、2023双语学习报英语高一37
3、英语双语报2022-2023高一45期
7．The house ______ roof was damaged has now been repaired．（ ）
| A． | who's | B． | whose | C． | which | D． | of which |
试题答案
分析 屋顶损坏的那所房子现在已经被修好了．
解答 答案：B
本句为定语从句；由于先行词The house 在从句中作名词 roof 的定语，意为：那所房子的屋顶；所以此处应使用关系代词whose，故选B．
点评 本题考查了定语从句中关系代词的用法；做类似的题时，需要熟练掌握定语从句的结构特点以及各关系词的用法．
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(模拟) technologies to help government and private business control and react to changing traffic conditions.
The online economics magazine Forbes.com says traffic congestion(拥挤) cost Americans $ 124 billion in 2014 and that number could rise to $ 186 billion by 2030.
But 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 websitrre
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.In which column of the newspaper can you read this text?
A. Daily life. B.Science.
C.Education. D.Exploration
