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Which do you think are the most important inventions(发明) in the world? The TV? The printing? The telephone? Or the computer? A report shows that they are not the only important inventions. Here are three other important inventions.
One of the simplest inventions is the toilet. Before toilets, waste ran into rivers from people’s houses. Illnesses were common in big cities, and it was often difficult to find clean drinking water.
Animal food is another important invention. Before the invention, most animals were killed(杀死) every autumn because there was not enough food for them in winter. After hay (干草) became a kind of common animal food, animals could live through the long winter.
The third great invention is glasses. Glasses help people read, write and do “close work” after the age of 45. Without glasses, the world would be difficult for the people above(超过)45.
1. inventions | ||
Some most important inventions | Three 2. simple inventions | Before the inventions |
The TV The printing The telephone The 3. | The 4. | Waste ran into rivers 5. people’s house. Illnesses were common in big 6.. It was not often 7. to find clean drinking water. |
Hay , animal food | People killed most animals in autumn because there was not enough food in 8.. | |
9. | 10. , writing and other “close work” would be difficult for the people above forty-five if there were no glasses. |
