![](https://lstatic.shangxueba.com/jiandati/h5/images/m_q_title.png)
believe it or not
A.不相信
B.相信
C.信不信由你
D.深信
A.不相信
B.相信
C.信不信由你
D.深信
Now the American Automobile Association Foundation for Traffic Safety in Washington D.C. is planning to repeat Japan’s success. Starting next year, the foundation will paint chevrons and other patterns of stripes on selected roads around the country to test how well the patterns reduce highway crashes.
Excessive speed plays a major role in as much as one fifth of all fatal traffic accidents, according to the foundation. To help reduce those accidents, the foundation will conduct its tests in areas where speed-related hazards are the greatest ― curves, exit slopes, traffic circles, and bridges.
Some studies suggest that straight, horizontal bars painted across roads can initially cut the average speed of drivers in half. However, traffic often returns to full speed within months as drivers become used to seeing the painted bars.
Chevrons, scientists say, not only give drivers the impression that they are driving faster than they really are but also make a lane appear to be narrower. The result is a longer lasting reduction in highway speed and the number of traffic accidents.
11. The passage mainly discusses __________.
A. a new way of highway speed control
B. a new pattern for painting highways
C. a new approach to training drivers
D. a new type of optical illusion
12. On roads painted with chevrons, drivers tend to feel that __________.
A. they should avoid speed-related hazards
B. they are driving in the wrong lane
C. they should slow down their speed
D. they are approaching the speed limit
13. The advantage of chevrons over straight, horizontal bars is that the former ___________.
A. can keep drivers awake
B. can cut road accidents in half
C. will have a longer effect on drivers
D. will look more attractive
14. The American Automobile Association Foundation for Traffic Safety plans to ________.
A. try out the Japanese method in certain areas
B. change the road signs across the country
C. replace straight, horizontal bars with chevrons
D. repeat the Japanese road patterns
15. What does the author say about straight, horizontal bars painted across roads?
A. They are falling out of use in the United States
B. They tend to be ignored by drivers in a short period of time
C. They are applicable only on broad roads
D. They cannot be applied successfully to traffic circles
Japan is case in point. It has reduced automobile crashes on 【M1】______.
some roads by nearly 75 percent using a simple optical illusion.
Bending stripes, called chevrons (人字形), painted on the roads make 【M2】______.
drivers think that they are driving faster than they really are, and thus
drivers slow down.
Now the American Automobile Association Foundation for Traffic
Safety in Washington D. C. is planning to repeat Japan's success. Starting
next year, the foundation will paint chevrons and other patterns of stripes
on selected roads around the country to test how the patterns reduce 【M3】______.
highway crashes.
Excess speed plays a major role in as much as one fifth of all 【M4】______.
fatal traffic accidents, according to the foundation. To help reduce those
accidents, the foundation will conduct its tests in areas which speed-related 【M5】______.
hazards are the greatest -- curves, exit slopes, traffic circles, bridges. 【M6】______.
Some studies suggest that straight, horizontal bars painted across
roads can initially cut the average speed of drivers in half. Then, 【M7】______.
traffic often returns to fast speed within months as drivers become used to 【M8】______.
seeing the painted bars.
Chevrons, scientists say, not only give drivers the impression 【M9】______.
they are driving faster than they really are but also make a lane appears to 【M10】______.
be narrower. The result is a longer lasting reduction in highway speed
and the number of traffic accidents.
【M1】
A、A z-statistic is used to test the hypothesis.
B、The population standard deviations must be equal.
C、nπ and n (1 - π) must be 5 or greater.
D、A one-tailed hypothesis test.
A、How to save money.
B、The author shared his travel experience and some tips for saving money.
C、How to travel.
D、How to make the plan of journey.
A、Take bags with handles and wheels.
B、Reserve hotel rooms online in advance.
C、Read a travel guide about the place.
D、All above mentioned.
Lecture3 写作作业选项 How do you design the itinerary? Please choose the right order. 1. Open a word processing or graphics software program on your computer, design a table which includes tour title,day-to-day events,departure and return date,transportation,accommodations,travel expense,time arrangement,duration. 2. Search for relative information online about the destination and select the attractions you want to visit. 3. Create separate rows within each sub-category, by day, for time and event information and separate three columns for day, activities and time. 4. Check your document against your details for accuracy. Take your itinerary with you and refer to it often throughout your trip. 5. Choose a destination.
A、12345
B、52134
C、54321
D、21354
为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!