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.
Some safety developments aim to improve your vision.Radar can spot obstacles in fog,while other technologysees throughbig vehicles blocking your view.
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.
1.To reduce car crash rate,many scientists are working hard to
B.develop faster electric vehicles.
D.improve the safety of cars and develop new fuels.
A.heavy traffic.
C.engine failure.
3.Which of the following safety developments is NOT mentioned in the passage?
B.Radars that can help drivers to see obstacles in fog.
D.Improvements in seat belts,pedal controls and tyres.
A.reduce oil consumption.
C.call for help when ones car crashes.
5.Which of the following statements is true of robotic drivers?
B.Robotic drivers are not allowed to driveon busy roads.
D.Robotic drivers are too expensive to use.
人教(新版)英语四下《Unit 1 welcome to my new home》(Lesson1)flash课件
四年级下册-Welcome to my new home-Lesson 3
人教(新版)英语四下《Unit 1 welcome to my new home》(Lesson5)flash课件
人教(新版)英语四下《Unit 4 there are seven days in a week》(lesson20)flash课件
人教(新版)英语四下《Unit 6 would you like to take a trip》(lesson35)flash课件
人教(新版)英语四下《Unit 1 welcome to my new home》(lesson1)flash课件之一
人教(新版)英语四下《Unit 5 what will you do this weekend》(lesson28)flash课件之一
人教(新版)英语四下《Unit 6 would you like to take a trip》(lesson32)flash课件
人教(新版)英语四下《Unit 6 would you like to take a trip》(lesson35)flash课件之一
人教(新版)英语四下《Unit 5 what will you do this weekend》(lesson26)flash课件之一
四年级下册-Would you like to take a trip?-Lesson 33
人教(新版)英语四下《Unit 5 what will you do this weekend》(lesson26)flash课件
人教(新版)英语四下《Unit 4 there are seven days in a week》(lesson19)ppt课件
四年级下册-Would you like to take a trip?-Lesson 32
人教(新版)英语四下《Unit 2 It is time to get up》(lesson8)flash课件
人教(新版)英语四下《Unit 2 It is time to get up》(Lesson 12)ppt课件
人教(新版)英语四下《Fun Time 2 Part 1》ppt课件
人教(新版)英语四下《Unit 1 welcome to my new home》(Lesson4)flash课件
人教(新版)英语四下《Unit 6 would you like to take a trip》(lesson31)flash课件
人教(新版)英语四下《Unit 6 would you like to take a trip》(lesson32)flash课件之一
人教(新版)英语四下《Unit 6 would you like to take a trip》(lesson36)flash课件之一
人教(新版)英语四下《Unit 1 welcome to my new home》(Lesson3)flash课件
人教(新版)英语四下《Unit 6 would you like to take a trip》(lesson31)ppt课件
人教(新版)英语四下《Unit 1 welcome to my new home》(Lesson2)flash课件
四年级下册-Would you like to take a trip?-Lesson 34
四年级下册-Would you like to take a trip?-Lesson 35
四年级下册-Welcome to my new home-Lesson 2
人教(新版)英语四下《Unit 2 It is time to get up》(lesson7)flash课件
人教(新版)英语四下《Unit 2 It is time to get up》(lesson12)flash课件
人教(新版)英语四下《Unit 5 what will you do this weekend》(lesson29)flash课件