6 . 听下面一段较长对话，回答以下小题。
1. What are the speakers talking about?

A．How to go to Georgia.

B．How to go to the airport.

C．How to go to the countryside.

2. What does the man think of taking a flight?

A．Interesting.

B．Expensive.

C．Convenient.

3. Why does the woman disagree to take a bus?

A．She thinks it’s dangerous.

B．She thinks it’s tiring.

C．She thinks it’s uncomfortable.

4. How will the speakers probably go to their destination?

A．By car.

B．By plane.

C．By train.

7 . Official figures show that 101 people were killed in road accidents on the streets of London last year. The city wants to reduce the number of deaths and serious injuries on the capital’s roads to zero. It seems impossible. But it focuses more minds on an important question: What can help reduce accidents in a big city? Transport for London (TfL), the capital’s road and rail authority, has some answers: safe speeds, safe vehicles and so on.

A safety standard for Heavy Goods Vehicles (HGVs), which harnesses blind area cameras and sensors (传感器), is pioneering. Blind area cameras and sensors are widely placed where they are needed. The European Commission has followed it. TfL has also helpfully identified London’s most dangerous places. Half of Britain’s most dangerous roads run through the capital. Around three-quarters of accidents that cause deaths or serious injuries happen at crossing near the British Museum, which has been the site of the most deaths since 2012. Westminster is the most dangerous area for walkers and cyclists, so it introduced 20 mph speed limits on all its roads in 2021.

“Vision Zero” was launched in 2018. Deaths and serious injuries on London’s roads have fallen — by 53% and 40% respectively in 2022. But movement is not one-way. Deaths were record breakingly low in 2020 and 2021. But in 2022 the deaths rose again. “We are moving in the right direction,” says Will Norman, London’s walking and cycling commissioner.

Lack of funds for TfL has put off improving the riskiest areas. Only a few parts of the1010 Avenue have bike paths with guardrails (护栏). Safety is the biggest problem to people taking up cycling or letting their children walk or cycle. But greener vehicles may be unsafe themselves. Electric scooters (滑板车) are the latest ones to confuse planners. “One of those doing 50 mph down the road is not good for anybody,” said Mr Norman.

1. What is the author’s purpose in writing paragraph 1?

A．To make the article interesting.

B．To stress the importance of TfL.

C．To call on scientists to study the question.

D．To give some background information.

2. What does the underlined word “harnesses” mean in paragraph 2?

A．Compares.

B．Removes.

C．Uses.

D．Replaces.

3. What is the Will Norman’s attitude to the “Vision Zero”?

A．Doubtful.

B．Supportive.

C．Puzzled.

D．Unclear.

4. What does the author intend to tell us in the last paragraph?

A．Bike lanes are not safe anymore for riders on roads.

B．Children should think twice when taking up cycling.

C．Safety has been a problem for some eco-friendly vehicles.

D．Electric scooters have become the biggest confusion for planners.

10 . We have been taught from a young age that red means stop and green means go. So why were these colors chosen for traffic lights? And what’s the history behind the colors?

To trace the connection between the colors and traffic lights,we have to travel back in time to the earliest railroad signals (信号灯) developed in the 1830s. Those first railroad signals were the forerunner of our modern stoplights. Like modern traffic controls,they contained three lights:one for stop,one for caution (警告),and one for go. The original color system was different from our modern system,though. Red meant stop,green meant caution,and white meant go.

The choice of red for stop was fairly obvious,since red — the color of blood — has been associated with danger for thousands of years, long before cars were even around. Scientifically speaking,red is the color with the longest wavelength which means that as it travels,it gets spread less in different directions than other colors,so it can be seen from a greater distance.

Why green and white were chosen for the other signals remains a bit of a mystery. It’s possible that the two colors were chosen because how they contrasted (反差) with red. This system of color-coded signals remained in place (仍然有效) for several decades until it became clear that using white for go could cause serious problems. Around 1914,a train signal’s red lights broke down,causing it to appear white. As a train approached the signal,it was supposed to stop,but the driver believed the white meant go. The result was a terrible train crash. After that,the color for go was eventually changed to green.

To provide the most contrast between red and green,yellow was then chosen as the new color for caution,because it can be seen well at all times of the day. After cars were invented and went into mass production,a similar signaling system was needed to control the flow of traffic. When traffic lights were put up,it became standard for them as well.

1. How does the author describe the original traffic lights?

A．By listing an example.	B．By offering a suggestion.
C．By making a comparison.	D．By showing the importance.

2. Why is the color red chosen for stop?

A．It is the easiest to recognize all day long.

B．It reminds people of accidents and danger.

C．It spreads fastest in all directions in the air.

D．It has proved the least harmless to our eyes.

3. What caused the accident in paragraph 4?

A．The driver’s tiredness.	B．The train’s high speed.
C．The travel system’s shortcoming.	D．The white light’s failing to work.

4. Which can be the best title for the text?

A．How did the present traffic lights form?

B．Why was the first traffic system invented?

C．Why did white disappear from the traffic lights?

D．How did an accident change the traffic systems?