R E A D I N G

• Hi, everybody!
• I think that one of the most important inventions for
• the mankind is the first accurate clock which was
• designed by Christian Huygens in 1657. Christian
• Huygens was born in the Hague, Holland.
• Mechanical clocks were made in the 14th century but
• they were too inaccurate to have minute hands.
• Shadow clocks or sundials are the oldest
• instruments for telling the time. They were developed
• more than 4,000 years ago.
• were used in the Middle Ages. If they took an
• hour to empty they were called hourglasses

Water clocks were used in ancient Egypt. Time was measured by how long it took water to flow out of holes in a container. Sand clocks hourglasses.

Pocket watches were invented in about were used in the Middle Ages. If they took an hour to empty they were called hourglasses

Today they are still often used as kitchen egg-timers

1500 and wristwatches started to get popular

around 1900 when they were made mainly in France and Switzerland.

With my best wishes,

Julia

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• 1 When was the first accurate clock designed?
• a) in 1657 b) in 1637 c) in 1700
• 2 When were shadow clocks first used?
• a) 3000 years ago b) 4000 years ago c) 2000 year ago
• 3 When were mechanical clocks made?
• a) in the 13th century b) in the 15th century
• c) in the 14th century
• 4 What kind of clocks were used in ancient Egypt?
• a) hourglasses b) water clocks
• 5 When were sand glasses used?
• a) in the Middle Ages b) after 1700
• 6 Where were the first wristwatches made?
• a) in England and Germany b) in France and Switzerland

1. We (to meet) twice a week.

2. I (not understand) your remark.

3. She (to wind) the watch every morning.

4. He often (to spend) his summer vacation at the sea-side.

5. My watch (to go) right. I (to set) it by the radio.

6. She usually (to walk) to the University.