The contrails left by aeroplanes last only hours. But they are now so widespread that their warming effect is greater than that of all the carbon dioxide emitted by aeroplanes that has accumulated in the atmosphere since the first flight of the Wright brothers. Worse still,this non...
Each rail car has two separate oxygen systems. One system spreads oxygen throughout the train at all times. And each passenger can also get a personal oxygen mask just like those used in planes. Here are a few more things to think about as our train leaves the station. The designers ...
And while warmer weather is expected to move in from the southern Planes to the Gulf Coast, colder weather is expected to maintain its grip on the Northeast and Great Lakes into February, according to Accuweather's team of long-range forecasters. Punxsutawney Phil's forecast reminds people ...
They are not as fast as trains or planes, but travelling by sea is a' very pleasant way to spend a holiday. Many people like to travel: by car. They can make their own timetable. They can travel hundreds of miles a day, just as their wish. They can stop wherever they want to se...
Pilots argue about which system is better; neither is considered safer than the other.Each exemplifies a different approach to a problem that manufacturers of aircraft must overcome as long as human operators handle increasingly automated machines.Boeing and Airbus both pack their planes with computers...
bottom 8. —Do you know what the model planes are made of ? —Waste wood from old buildings that were ___. You see, waste things can be ___ to life. A. pull down; bring back B. pulled down; brought back C. pull down; take away D. pulled down; taken away 9....
More than half were given different hotel rooms than they booked, 81 percent had inaccessible showers, and more than half had beds that were too high. Eighty-six percent have had problems on planes and 79 percent with getting around a destination. ...
I’m sure we won’t be driving cars or personal planes.I think it’s more likely that we’ll be walking and riding bikes more.Oil (石油)is going to run ou(t 用尽) and cars are going to become too expensive to use.Also,air pollution will be the biggest problem in cities so we’...
First of all, larger planes ___, so flying will be very cheap. Solar power(太阳能) will be used in the cars and the cars will be much cleaner and safer. Everyone will have such a car. Robots will be ___ here and there. And space planes will take us around the world ___ two...
新概念英语第 2 册一课一练 Lesson 1 A private conversation 用所给单词或短语的正确形式填空。 go to the theatre enjoy bear turn round pay (…) attention get (…) angry 1. How can you ___ this awful noise? 2. I really ___ that concert. 3. Would you like to ___ tonight? 4. Lo...