Man discovered fire many thousands

Man discovered fire many thousands years ago. The first time he saw was probably when a tree was struck by lightning. He soon learned how to make fire for himself. However, man probably made his fire by rubbing two sticks together.

Fire was very important to man. He needed fire to keep himself warm at night. He used fire to cook his food. He used fire to frighten away enemies and wild animals. In some parts of the world he used fire to signal messages. Red Indians, for example, used fire to make smoke signals.In some other countries people lit fires to warn thier friends of danger.

Fire was very also used to give light. Before the invention of oil lamp, men used burning sticks as torches.And before man discovered gas and electricity, he hung small fires in wire baskets from posts to light the streets.

One man even used fire to tell the time .He invented a candle clock.He made a candle that took exactly twelve hours to burn. Then he marked this candle in twevle equal parts. He lit the candle and could tell the time by counting the number of parts of the burning candle.But the candle clock did not always work well. If there was a wind blowing on the candle , the flame burned too quickly.

1.Man probably first made fire..........
a.from a tree stuck by lighting
b.by rubbing two sticks together
c.from wire baskets hugn on poster
d.from a candle

2.Man probably first used fire.........
a.to tell the time
b.to send signal
c.to light the streets
d.to keep warm at night.

3.Fire was used by Red Indịans.....
a.to make gas and electricity
b.to burn down trees
c.to frighten away enemies
d.to send messages

4.The candle slock burned for......
a.twevle hours
b.one hour
c.a day
d.twevle days

Kết quả (Việt) 1:

Man discovered fire many thousands years ago. The first time he saw was probably when a tree was struck by lightning. He soon learned how to make fire for himself. However, man probably made his fire by rubbing two sticks together.Fire was very important to man. He needed fire to keep himself warm at night. He used fire to cook his food. He used fire to frighten away enemies and wild animals. In some parts of the world he used fire to signal messages. Red Indians, for example, used fire to make smoke signals.In some other countries people lit fires to warn thier friends of danger.Fire was very also used to give light. Before the invention of oil lamp, men used burning sticks as torches.And before man discovered gas and electricity, he hung small fires in wire baskets from posts to light the streets.One man even used fire to tell the time .He invented a candle clock.He made a candle that took exactly twelve hours to burn. Then he marked this candle in twevle equal parts. He lit the candle and could tell the time by counting the number of parts of the burning candle.But the candle clock did not always work well. If there was a wind blowing on the candle , the flame burned too quickly.1.Man probably first made fire..........a.from a tree stuck by lightingb.by rubbing two sticks togetherc.from wire baskets hugn on posterd.from a candle2.Man probably first used fire.........a.to tell the timeb.to gửi tín hiệuc.to ánh sáng đường phốd.to giữ ấm vào ban đêm.3. cháy được sử dụng bởi Red Indịans...a.to làm cho khí đốt và điệnb.to ghi xuống câyc.to cảm giác lo sợ đi kẻ thùd.to gửi tin nhắn4. slock nến đốt cháy để...a.twevle giờb.One giờc.a ngàyd.twevle ngày