1 . In recent years, China has greatly developed its high-speed railway. Many cities even some rural areas have high-speed railway stations. Thus, it is more convenient for people to travel.

With the development of the high-speed railway, tourists have increased in many places of Yunnan. For example, every year, a large number of people flood into Dali and Lijiang taking the high-speed train. The reason is that the high-speed train is not only faster than buses but also cheaper than planes. It only takes two hours to travel from Kunming to Dali by high-speed train, but it takes four hours by bus. In addition, people in Yunnan can travel by high-speed train from Kunming to Beijing, Shanghai, Guiyang and many other big cities in China. People contribute the changes to the development of our country. It is believed that Yunnan will become better and better with the development of China.

1. Why is it more convenient for people to travel according to the text?

A．Because of the development of the art.

B．Because of the development of the business.

C．Because of the development of the agriculture.

D．Because of the development of the high-speed railway.

2. How many hours will it take from Kunming to Dali by high-speed train?

A．One hour.

B．Two hours.

C．Three hours

D．Four hours.

3. You can travel from Kunming to many cities by high-speed train. Which of the city is NOT mentioned in the text?

A．Mohe.

B．Shanghai.

C．Beijing

D．Guiyang

4. What can we learn from the passage?

A．Only cities have high-speed railway.

B．High-speed railway is faster and cheaper than buses.

C．People in Yunnan want to live in other big cities.

D．Yunnan will be a better place to live in the future.

3 . A giant 18-wheel transport truck is moving very quickly down a Texas highway (公路) , and there is no one behind the wheel.

The futuristic idea is being tested in Texas, which has become the center of a rapidly developing self-driving vehicle industry.

Self-driving technology companies didn’t land in Texas by chance. The state has the largest number of truck drivers and engineers. Its sunny climate is great for the trucks’ sensors, and neighboring Mexico exports 85 percent of its goods to Texas by road. But most of all, Texas passed a law that gave autonomous cars the same position as traditional vehicles in 2018.

With the United States so vast (辽阔的) and trucking such an important part of its economy, companies see self-driving as a way to cut costs and reduce risk, since unlike human drivers, autonomous vehicles don’t get tired. While it will take a person three days to drive a truck from Los Angeles to Dallas, a self-driving truck will complete the journey in 24 hours. And it will be nearly twice as cheap. The per-mile cost would drop from $1.76 to $0.96 if the truck drives itself.

Alex Rodrigues, CEO and co-founder of Embark Technology, insists self-driving trucks will play a key role in dealing with the current shortage of long-distance truck drivers in the US, some of whom are unwilling to be away from their families for weeks at a time. And Rodrigues promises that the self-driving truck industry will create “attractive” jobs for local drivers, who will take over the autonomous trucks at transfer (中转) points and drive them to their final destination points.

Still, about 294,000 trucking jobs would be threatened by the industry’s automation, according to a 2018 study.

For Julio Moscoso, a 56-year-old driver in Texas, the arrival of driverless trucks is “not good news”. He still remembers a time not long ago when “there wasn’t as much work”. And most importantly, Moscoso says he wouldn’t trust driverless trucks. “It’s dangerous. What happens if the sensors fail?” he asks.

1. What contributes most to the position of Texas in the self-driving truck industry?

A．Its special law.	B．Its bright weather.
C．Its attraction to talents.	D．Its unique geographical location.

2. What is paragraph 4 mainly about?

A．The future of driverless trucks.

B．The influences of driverless trucks.

C．The production of driverless trucks.

D．The advantages of driverless trucks.

3. What does Rodrigues think of the self-driving truck industry?

A．It will make transport safer.

B．It will have fewer transport costs.

C．It will offer good job opportunities.

D．It will lift drivers’ competitive spirit.

4. What is Moscoso’s attitude to driverless trucks?

A．He is against them.

B．He appreciates them.

C．He is doubtful about them.

D．He pays little attention to them.

4 . The China-Laos Railway went into operation on December 3, 2021. The 1035-kilometer-long line starts from the southwest Chinese city of Kunming and goes all the way south to the Lao capital of Vientiane.

The trains run through two countries. The one running in Chinese section is named “Friendship” and painted in light green. The other running in Lao section is red, blue and white, including the colors of the national flag of Laos. Both trains run at the speed of 160 kilometers per hour. On the opening day of the railway, we got aboard the first train setting out from Kunming.

Here are some of the pictures we took from the train. The uniform of workers is an important part of the train. It is full of rich meanings. The main color of the uniform is peacock blue and the flower painted on the cloth is the camellia, which is considered as a provincial flower of Yunnan. And the flower on the coat is the peony, one of the best-known flowers in China.

1. How long is the railway from Kunming to Vientiane?

A．160 km.

B．1,035 km.

C．1,053 km.

D．2,021 km.

2. What is the name of the train running in Chinese section?

A．Friendship.

B．Vientiane.

C．Camellia.

D．Peacock.

3. What can be known about the train?

A．It transports flowers from China to Laos.

B．It shows beautiful pictures of the train workers.

C．It is designed with features of the two countries.

D．It takes more than 10 hours from Kunming to Vientiane.