Motoring Technology
1.2 million road deaths worldwide occur each year,plus a further 50 million injuries.To reduce car crash rate,much research now is focused on safety and new fuels-though some electric vehicle and biofuel research aims at going faster.
Travelling at speed has always been dangerous.One advanced area of research in motoring safety is the use of digital in-car assistants.They can ensure you dont miss important road signs or fall asleep.Most crashes result from human and not mechanical faults.
Some safety developments aim to improve your vision.Radar can spot obstacles in fog,while other technologysees throughbig vehicles blocking your view.
And improvements to seat belts,pedalcontrols and tyres are making driving smoother and safer.The colour of a car has been found to be linked with safety,as have,less surprisingly,size and shape.
But whatever is in the fuel tank,you dont want a thief in the driving seat and there have been many innovations.Satellite tracking and remote communications can also come into play if you crash,automatically calling for help.
Accidents cause many traffic jams,but there are more subtle interplays between vehicles that can cause jams even on a clear but busy road.Such jams can be analyzed using statistical tools.Robotic drivers could be programmed to make traffic flow smoothly and will perhaps one day be everyonss personal chauffeur,but their latest efforts suggest that wont be soon.
1.To reduce car crash rate,many scientists are working hard to
A.design fully automatic cars.
B.develop faster electric vehicles.
C.analyze road deaths occurring worldwide each year.
D.improve the safety of cars and develop new fuels.
2.According to the second paragraph,most road accidents happen due to
A.heavy traffic.
B.human mistakes.
C.engine failure.
D.bad weather.
3.Which of the following safety developments is NOT mentioned in the passage?
A.Windscreens that can help drivers to improve their vision.
B.Radars that can help drivers to see obstacles in fog.
C.Devices that can help drivers to see through big vehicles.
D.Improvements in seat belts,pedal controls and tyres.
4.Satellite tracking and remote communication systems cna be used to
A.reduce oil consumption.
B.remove the obstacles on the road.
C.call for help when ones car crashes.
D.help drivers get out of a traffic jam.
5.Which of the following statements is true of robotic drivers?
A.It will take some time before robotic drivers are available.
B.Robotic drivers are not allowed to driveon busy roads.
C.Robotic drivers can never replace human drivers.
D.Robotic drivers are too expensive to use.
答案:D、B、A、C、A
小学英语四年级教案及反思Recycle 2
小学英语四年级教案及反思Unit 3
沪教牛津版小学英语四年级上册教案 Unit 3
小学英语四年级上册 Unit1第二课时教案
小学四年级英语上册lesson3教案示例
小学四年级英语上册lesson34教案示例
小学四年级英语教案Teaching Plan
牛津小学四年级英语教案4A词组、句子
(沪教牛津版)小学英语四年级上册Unit3教案
小学四年级英语上册lesson34内容分析教案
沪教版牛津小学四年级英语Module1 Unit3教案5
小学四年级英语下册教案 语法重点句型复习
小学四年级英语上册lesson5内容分析教案2
小学英语四年级上册Unit4教案
(沪教牛津版)小学英语四年级上册Unit1教案
小学英语四年级教案及反思Unit 4
(沪教牛津版)小学英语四年级上册 Unit 2 教案
小学四年级英语上册lesson4内容分析教案
小学四年级英语上册lesson5教案示例
小学英语四年级上册Unit1第三课时教案
小学四年级英语上册lesson32内容分析教案
四年级英语上册lesson4内容分析教案1
沪教版牛津小学四年级英语Module2 Unit1教案(3)
小学四年级英语上册lesson3内容分析教案
小学英语四年级教案及反思Unit 1
小学四年级英语下册教案 单词复习
小学英语四年级教案及反思Unit 2
小学英语四年级下册Unit 1教案及反思
沪教版牛津小学四年级英语module3 uint2教案
小学四年级英语上册lesson5步骤建议 教案
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |