Question

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f we ______(1) down the names of all the things people have invented since the beginning of the world, we would have a very long list. We would find that most of these items are improvements on previous inventions. Controlled fire and the wheel are two such inventions which _______(2) our ancestors to live a better life in safety. Agricultural tools ______(3) about 10,000 years ago helped people learn to grow enough food to feed large populations. They ______(4) to the development of cities.

For more than 3,000 years, ships were powered by sails. Then in 1793, an American ______(5) Robert Fulton became interested in an idea which would mean the end of sailing ships. Many people ______(6) how to build steamships, but the only ones they could build were small and impractical. No one truly believed that ships run by steams power would replace the beautiful and colorful sailing ship. They ______(7) wrong.

Fulton ______(8) in France and England for several years, perfecting his ideas. Then in 1806, he was to the United States and ______ (9) to build the Clermont. It _____(10) an experiment to see if anyone could build a ship and operate it successfully. Making money ______(11) the true test since shipbuilders would not invest their money unless they ______(12) that they could make a profit.

On August 11, 1807, (Clermont) the first commercial steamship ______ (13) up the Hudson River from New York City to Albany. Thousands of people ______(14) the event, and most ______(15) immediately how important it was. Only four years later, the first steamships ______(16) the Atlantic Ocean.

Travel and transportation were changed when the steamship was invented, when the locomotive was invented by George Stephenson in 1814. He ______(17) the idea and ______(18) that he could build a better one. He ______(19) the tracks from wood to steel and ______(20) the locomotive much large, and by July 25, 1814, he was ready.

The Blucher ______(21) only 4 miles per hour. On September 27, 1825, the first full passenger railroad went into operation. Stephenson’s railroad was(22) efficient and profitable, and a new method of transporting freight and people was here to stay.

Answer 1

perdón no se inglés pero si lo traduces a español te ayudo ok