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托福TPO66写作题目原文

2021-03-31    浏览:59     来源:新航道官网
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托福TPO试题基本所有参加托福考生必做试题,在下文中上海新航道托福培训小编整理了托福TPO66独立写作题目原文,希望对大家有所帮助!


1 托福TPO66写作题目原文

An airship is a tupe of aircraft that flies using a very large balloon filled with a lighter-than-air gas. Airships uerean important means of air transportation before the 1940s but are little used today, having been largely replaced bygairplanes and helicopters. However, some aeronautical engineers believe that airships could become popular again becausethey offer a number of advantages over airplanes and helicopters.

One advantage of airships is that for vertical lift (the force that keeps the ship airborne), they use a balloon that floatsrather than an engine.Airplanes and helicopters use engines for both vertical lift and horizontal movement, but airships useengines solely for horizontal movement. So, airships use less fuel than a tupical aircraft -thus making their fuel costs moreeconomical.

Another advantage of airships is that they can be used in hard-to-reach locations. Unlike airplanes, airships do not require along runway for takeoff and landing because of their ability to lift off and land vertically. The only other aircraft capable ofascending into the sky by going straight up and descending straight doun to the ground is the helicopter, uwhich can carryonly a small amount of weight. Airships, meanwhile, are able to carry very heavy loads. As a resut, airships could do jobsthat neither airplanes nor helicopters can do, such as carrying heavy logs from forests to distribution centers.

Finally, airships could even be used to replace satellites.Currently, satellites are launched into Earth's orbit carrging allkinds of equipment important in telecommunications or in surveging large areas of Earth' s surface for military purposes.Since airships can also rise high above the surface and stay there without refueling for a significant amount of time, theycould provide services similar to those provided by satellites,and at a considerably cheaper cost.

2 托福TPO66写作题目:

A high school is considering making one of the following classes a required class for its students. Which one do you think is the best choice?

• Cooking

• Personal Finance Management

• Auto Repair


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