What do you think of the most important inventions 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 every autumn because there was not enough food for them in winter. After hay 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 forty-five. Without glasses, the world would be difficult for the people above forty-five.

Important 1.______________

Some most important inventions

The TV, the 2.________, the3.__________, the computer

Three other important inventions

Before the inventions

the 4.________

5.________ ran into rivers from people’s houses.

6._________ were common in big cities.

It was often difficult to find 7.____________ drinking water.

animal food

Most animals were killed in 8.___________ because there wasn’t enough food in winter.

9.___________

Reading, writing and “close work” would be difficult for the people over10.____________.

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