Составить вопросы по данному тексту! ) вопроса 3-4) the steam engine drove all sorts of machines, for example, steam ships and steam locomotives. indeed, the very first aeroplane built by a.f. mozhaisky also had a steam engine. however, the steam engine had its disadvantages. it was too large and heavy, and needed too much fuel. the imperfections of the steam engine led to the design of a new type. it was called the internal combustion engine, because its fuel ignites and burns inside the engine itself and not in a furnace. it is smaller and lighter than a steam engine because it does not have a boiler. it is also more powerful, as it uses better-quality fuel: petrol or kerosene. the internal combustion engine is now used in cars, diesel locomotives and motor ships. but to enable aeroplanes to fly faster than the speed of sound another, more powerful engine was needed. eventually, one was invented and it was given the name «jet engine». the gases in it reach the temperature of over a thousand degrees. it is made of a very resistant metal so that it will not melt.

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