Question

【題目】Travel in the Future

These days, if you want to travel from New York to Beijing, the flight takes about 16 hours. You also have to wait at the airport, and sometimes you have to transfer (換乘) onto a different airplane. If you add all of that extra time, the trip takes at least 20 hours. But in the future, the trip from New York to Beijing might only take two hours.

Right now, a company is developing something called ET3, which stands for "evacuated tube (真空管) transport technology". Here's how it works. A tube goes all the way from New York to Beijing. The tube is only a few meters wide. Capsules (艙) move through the tube. Six people can sit in one capsule. The capsules use electricity instead of oil. For international travel, the capsules can travel at about 6,500 kilometers per hour. That's much faster than airplanes—most modern airplanes usually only fly at about 800 kilometers per hour.

So how is this possible? How can these capsules travel so fast? The answer is that there is no air inside the tube. When airplanes fly, they have to move through air. The air slows the airplanes down. Because there isn't any air in the ET3 tubes, the capsules are able to move at a very high speed. Also, the capsules are quite light. Each only weighs 183 kilograms.

There are other advantages to ET3. Because it uses electricity, it's quite clean. Also, it's a lot quieter than airplanes and cars. Finally, ET3 tubes and capsules don't require very much building materials.

Of course, ET3 doesn't come into use yet. The technology is still being developed. Developers still have to solve a lot of problems. The biggest problem is that right now ET3 would be far too expensive. In order to make ET3 cheaper, we will need much better technology.

It's exciting to think of how ET3 will change the travel in the future. Who knows? Maybe someday you'll be able to have lunch in New York and dinner in Beijing.

【1】According to the passage, an ET3 looks more like a ________.

A.spaceshipB.busC.planeD.subway train

【2】ET3 travels at the very high speed because _________.

A.it is powered by electricity and oilB.it is much lighter than an airplane

C.it moves through a tube without airD.it is made up of fewer capsules

【3】From the passage, the writer expects that ________.

A.modern technology will be used in airplanesB.ET3 will take the place of airplanes some day

C.less money will be spent for passengers on ET3D.ET3 will change the travel in the future greatly

Answer 1

【答案】

【1】D

【2】C

【3】D

【解析】

文章介紹了原本從紐約到北京旅行至少需要20個小時。但將來，從紐約到北京的旅行可能只需要兩個小時。文中主要介紹了這個新型的旅行工具ET3以及它的工作原理和現(xiàn)在存在的問題。

【1】推理判斷題。根據(jù)文中AtubegoesallthewayfromNewYorktoBeijing.Thetubeisonlyafewmeterswide.Capsules(艙)movethroughthetube.一根管子從紐約一直到北京。管子只有幾米寬。艙通過管子移動�？梢酝茢喑�ET3看起來像地鐵一樣，故選D。

【2】細節(jié)理解題。根據(jù)文中Sohowisthispossible?Howcanthesecapsulestravelsofast?Theansweristhatthereisnoairinsidethetube.怎么可能？這些膠囊怎么能走得這么快？答案是管子里面沒有空氣�？芍�是因為管子里沒有空氣，故選C。

【3】細節(jié)理解題。根據(jù)文中It’sexcitingtothinkofhowET3willchangethetravelinthefuture.Whoknows?Maybesomedayyou’llbeabletohavelunchinNewYorkanddinnerinBeijing.想到ET3將如何改變未來的旅行是令人興奮的。誰知道呢？也許有一天你可以在紐約吃午餐，在北京吃晚餐�？芍�作者期望將來ET3將改變未來的旅行，故選D。