北师大初中英语九年级Unit 4-14（MP3+LRC）

[00:00.98]Unit 4 Inventions and Inventors

[00:05.03]Lesson 14

[00:10.54]Exercise 1.3

[00:14.41]The first paper was made in China in 105 AD

[00:19.22]by a man called Cai Lun,

[00:21.86]The oldest pieces of paper still existed were

[00:24.98]made in about 150 AD,

[00:28.09]For over 500 year the art of making paper was

[00:31.95]limtted to China.

[00:33.95]In 610,papermaking was introduced into Japan,

[00:38.32]and then into central Asia in about the year 750

[00:43.27]Paper made its first appearance in Egypt

[00:46.03]in about 800

[00:47.63]but it was not produced there until the year 900

[00:52.76]Kites were known in China about 3,000 years ago.

[00:56.63]They were used in battles to transport supplies

[00:59.47]to soldiers who were in danger.

[01:02.30]Wheelbarrows were invented in the Han dynasty

[01:05.69]They were used by builders

[01:07.18]to carry heavy supplies.

[01:09.14]In a battle,

[01:10.17]wheelbarrows were used to carry injured

[01:12.83]or dead soldiers.

[01:15.06]Gunpowder was discovered by the Chinese

[01:18.32]who used it for making fireworks

[01:20.47]hundreds of years ago,

[01:22.35]It was probably introduced into Europe

[01:24.80]from the Middle East.

[01:27.60]Umbrellas were invented by the Chinese.

[01:30.37]They were made from oiled paper and bamboo.

[01:33.44]Red and yellow umbrellas

[01:35.31]were used by higher class,

[01:37.37]and blue umbrellas were used

[01:39.29]by the common people.

[01:42.24]Soccer was developed in England

[01:44.26]in the 12th century.

[01:46.19]But hundreds of years before this

[01:48.36]-around 200 BC-a similar game was played

[01:52.30]at the beginning of the Han dynasty in China.

[01:57.36]Magic squares are a very old type

[02:00.60]of number puzzle.

[02:01.66]They were invented in China

[02:03.33]before the end of the 1st century AD.

[02:06.62]In a magic square,

[02:08.05]no matter from which direction

[02:10.41]you add up the numbers,the result is the same.

[02:17.91]Exercise 2.2

[02:21.14]Tea-drinking was first recorded in China

[02:23.85]around 2737 BC.

[02:27.76]By the time of the Tang Dynasty,

[02:30.28]tea was China's national drink.

[02:33.28]Tea was planted in gardens and palaces.

[02:37.25]In the 8th century BC,

[02:39.91]Tea was introduced to Japan.

[02:42.75]Later,it was taken to Europe.

[02:45.94]According to Chinese tradition,

[02:48.61]silk was used as long ago

[02:50.28]as the 27th century BC.

[02:54.23]According to tradition,

[02:56.08]silk-making was discovered by Xilingshi,

[02:59.82]the 14-year-old bride of the Emperor Huang Di,

[03:04.26]The secret of silk was guarded successfully

[03:07.23]for centuries.

[03:08.88]In about 300 AD

[03:11.23]the secret was discovered by Japan,

[03:13.97]and later India.

[03:14.68]