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托福TPO66独立写作范文：Do you agree or disagree with the following statement?People who develop many different skills are more successful than people who focus on one skill only。Use specific reasons and examples to support your answer

TPO66综合写作

阅读部分：

An airship is a type of aircraft that flies using a very large balloon filled with a lighter-than-air gas. Airships were an important means of air transportation before the 1940s but are little used today, having been largely replaced by airplanes and helicopters. However, some aeronautical engineers believe that airships could become popular again because they 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 floats rather than an engine. Airplanes and helicopters use engines for both vertical lift and horizontal movement, but airships use engines solely for horizontal movement. So, airships use less fuel than a typical aircraft—thus making their fuel costs more economical.

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

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听力原文：

Despite what was stated in the reading, there are several reasons why airships are not likely to be widely used in the future.

Yes these ships use less fuel, but don't forget that airships also require special lighter-than-air gases that give them left. The two most efficient lifting gases are hydrogen and helium, and each has its own problems. Hydrogen catches fire easily and this has Led to many tragic airship accidents in the past. Helium is safer, but it is difficult to obtain, expensive and it doesn't provide as much lifting power as hydrogen. So, finding a truly economical solution for the lifting gases, a solution that balances safety and cost, is not an easy matter.

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范文：

First, according to the professor in the lecture, it is true that airships use less fuel as the author claims in the reading passage, but he maintains that the special lighter-than-air gases that are used to lift airships have to be taken into account. To be specific, two common gases, hydrogen and helium, both have problems. Hydrogen catches fire easily and resulted in many serious accidents in the past. As for helium, although it is safer, it is hard to obtain and expensive; also, it fails to provide lifting power as much as hydrogen. Therefore, finding a solution that balances safety and cost is not easy.

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