Tractors (Verbals)


Gramática — Nivel Avanzado
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  1. A tractor is an engineering vehicle specifically designed   a high tractive effort (or torque) at slow speeds,

  2. The first   farm implements in the early 19th century were portable engines – steam engines on wheels that could be used to drive mechanical farm machinery .

  3. The first tractors were steam-powered   engines.

  4. They were used in pairs, placed on either side of a field   a plow back and forth between them using a wire cable.

  5. Britain Mann's and Garrett developed steam tractors for direct   , but the heavy, wet soil of England meant that these designs were less economical.


Practica tus habilidades de escritura debatiendo las siguientes cuestiones

  1. Where are tractors usually functional?

  2. Have you been to a farm? If yes, what did you do there?

  3. What would happen if tractors were not invented?


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