Today's fast-pace life tires people out. Simple things, such as driving to and from work    1    a daily basis can be such stressful experiences    2    many people are left feeling totally exhausted. Fortunately, there are various means of public transport to choose from within modern towns and cities. Sometimes, all we need to do is to change a few of our long-standing    3    (habit) in order to discover     4     more comfortable way of life. By simply planning journeys, not only can we save time and money    5    we can reduce stress levels dramatically. By using public transport, everybody wins!

Most towns and cities,    6    (cover) with bus, tram and metro services, provide convenient services. While    7    (make) use of the services, you are also helping in the fight against increasing levels of pollution. Public transport systems have improved    8    (considerable) and there is more focus on environmentally friendly forms. For example, old tram systems    9     (strengthen) in many European cities in recent years, making movement across large areas much faster, cleaner and therefore     10    (stressful)!

So, next time you see your neighbour waiting at a bus stop as you drive by, don't feel sorry for him.

A slow train in Southwest China boasting its own study room has attracted much attention from netizen. The train No 5609/5610,     1     runs between Chongqing and Xiushan county, is a public-welfare “slow train”.

In some carriages, some seats have been replaced with desks and chairs next to the windows to transform it into a “study carriage” for passengers     2     need. The Chinese characters “Yu Yue” appear on the train, which translates to “traveling and reading     3     (happy).” Other inspirational     4     (slogan) can be seen throughout the converted carriages.

In addition to No 5609/5610, other “slow trains” have been upgraded with “study carriages”. Students from nearby schools often take the train between school and home. The trains are their “school buses” and many passengers use their travel time     5     (complete) homework.

On train No Z150, which runs between Guiyang and Beijing, a     6     (transform) “book bar” carriage has been welcomed by college students. There are nearly 400 universities and colleges in the cities along the line,     7     (make) train No Z150 the first choice for most students on those campuses.

Since 2015, the train’s dining car     8     (be) open for free at night to provide returning students with a lending library, free tea and other services. These small measures by the railway department are     9     welcome comfort for passengers in need of a     10     (relax) place to continue their studies.

People need transportation to move from one place to another. As time went by, transportation methods improved. Especially after the invention of airplanes, they made travel more convenient and     1    (easy).

The airplane     2     (invent) by Orville and Wilbur Wright in 1903.    3    first airplane, Wright Flyer I. flew 36.5 meters in 12 seconds. After that, the two brothers kept     4     (improve) their airplanes. They    5    (fly) in public in France in 1908, and started taking passengers with them. From then on, many other people made great efforts to improve and develop airplanes. Thanks to their efforts, airplane technology developed     6     (extreme) fast.

Today, airplanes have many different     7     (application). People can use airplanes to travel to other countries, send urgent (紧急的) mail and help people in danger. They use airplanes to send water, food, medicine, etc. to cities    8     urgent help is needed. However, airplanes are not only used in positive ways,     9     they are also used to fight wars.

Many things     10     (change) since the invention of the airplane. Airplanes have made travel or transport faster. Airplanes have really changed our lives.

On May 18, it was announced that China had achieved success in drilling fire ice, a frozen     1    (mix) of water and natural gas, from the South China Sea.     2    (official) known as methane hydrates(甲烷水合物), fire ice produces a high amount of energy when     3    (burn) and its chemical reaction produces nothing but dioxide and water.

Fire ice, both clean and energy-intensive,     4    (consider) the fuel of the future. Many countries, including the United States and Japan, have long been conducting research on fire ice, but extracting（提取）it from the bottom of the sea has been a common problem     5    (trouble) all of them. But, the Chinese team succeeded in drilling fire ice for nearly eight successive days,     6    is a big breakthrough.

However, it is too early     7    (say) a new energy source has been found. The world’s total fire ice reserve is about 21,000 trillion cubic meters, which, if extracted, could meet the world's energy need

It's thought that only by 2025 at    10     earliest might people be able to look at realistic commercial options.