People traveling long distances frequently have to decide whether they would prefer to go by land, sea, or air. Hardly can anyone positively enjoy sitting in a train for mort than a few hours. Train compartments soon get cramped and stuffy. Reading is only a partial solution for the monotonous rhythm of the wheels clicking on the rails soon lulls you to sleep. During the day, sleep comes in snatches. At night when you really wish to go to sleep you rarely manage to do so. Inevitably you arrive at your destination almost exhausted.

Long car journey are even less pleasant for it is quite impossible even to read. On motorways you can at least, travel fairly safely at high speeds, but more often than not, the greater pan of the journey is spent on narrow bumpy roads which are crowded wich traffic.

By comparison, trips by sea offer a great variety of civilized comforts. You can stretch your legs on the spacious decks, play games, swim, meet interesting people and enjoy good food-always assuming, of course, that the sea is calm. If it is not and you are likely to get seasick; no form of transport could be worse. Even if you travel in ideal weather, sea journeys take a long time. Relatively few people are prepared to sacrifice up to a third of their holidays for the pleasure of traveling on a ship.

Airplanes have the reputation of being dangerous and expensive. But nothing can match them for speed and comfort. Traveling at a height of 30,000 feet far above the clouds, and at over 500 miles an hour is an exhilarating experience. For a few hours, you settle back in a deep armchair to enjoy the flight. The real escapist can watch a free film show and sip champagne on some services. But even when such refinements are not available, there is plenty to keep you occupied. An airplane offers you an unusual and breathtaking view of the world. You soar effortlessly over high mountains and deep valleys. You really see the shape of the land. If the landscape is hidden from the view. you can enjoy the extraordinary sight of unbroken cloud plains that stretch om for miles before you, while the sun shines brilliantly in a clear sky. The journey is so smooth that there is nothing to prevent you from reading or sleeping. However you decide to spend your time, one thing is certain: you will arrive at your destination fresh and uncrumpled.

Like many other small boys, I was fascinated by cars, especially because my oldest brother was a bit of a car guy and subscribed to cool magazines like Car and Driver and Motor Trend.

Every so often, one of those magazines would run an article on the “Cars of the Future”. 【小题1】 Yet, frankly, my car doesn’t do anything that my brother’s Studebaker didn’t do. It goes, it stops, it burns gasoline. I still have to steer it, and it still runs into things if I don’t steer it carefully.

But guess what? 【小题2】 It may not burn gasoline, I may not have to steer it, and it may be a lot better at not running into things.

【小题3】 In fact, considering the recent news about people occasionally being killed by their airbags in low-speed crashes, they obviously still need some development. But they aren’t going away, and in fact, you can expect to see cars appearing with additional, side-impact airbags, something some European car manufacturers already offer.

Better than systems to minimize injury in the event of an accident, however, are systems that minimize the likelihood of an accident happening in the first place ? Future cars may be able to remove many of the major causes of accidents, including drunk-driving, and tailgating (与前车距离过近) . Cars could be equipped with sensors that can detect alcohol in a driver’s system and prevent the car from being started, for example. As early as next year, you’ll be able to buy cars with radar-equipped control systems. If the radar determines you’re closing too quickly with the car in front, it will ease up on the throttle (油门).

Scientists are now working on a system that can brake, accelerate and steer a vehicle down a highway on its own. 【小题4】

As environmental concerns continue to increase, many people are left wondering how they can balance the need to travel with the need to protect the planet. One particular dilemma that has received significant attention is air travel.

Air travel is known to be one of the most carbon-intensive forms of travel. According to a report by the European Environment Agency, aviation is responsible for around 3% of the EU’s greenhouse gas emissions, and that number is expected to grow in the coming years. In addition, aircraft contribute to other types of air pollution, such as particulate matter and nitrogen oxides.

For environmentalists who advocate for reducing our carbon footprint, this brings up a difficult question: should we avoid flying altogether?

On one hand, it’s easy to see why environmentalists would want to keep away from air travel. By doing so, they could dramatically reduce their carbon footprint and set an example for others. Additionally, some argue that air travel perpetuates(使永久)a culture of overconsumption, which is contradictory to environmental values.

However, there are also arguments in favor of air travel: For one, air travel enables people to experience different cultures, build relationships, and expand their knowledge in ways that might not be possible otherwise. It can also facilitate business trades and contribute to economic growth. Moreover, some experts believe that technological advancements could make air travel more sustainable in the future. For example, some airlines are experimenting with biofuels and electric planes, which could dramatically reduce the emissions associated with air travel.

So what’s the answer? Ultimately, it’s up to each individual to decide whether the benefits of air travel outweigh the environmental costs. However, there are steps that everyone can take to reduce their impact. For example, travellers can choose to fly less frequently, opt for direct flights, and offset(抵消)their emissions through programs like carbon offsetting. In the end, the key is to remain aware of the environmental impact of our choices and to make informed decisions based on our own values and priorities.