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3 Listen to an introduction to silk. 听一段关于丝绸的介绍。
3 - 1 Listen and tick (√) the information you hear. 听介绍，勾选出你听到的信息。
□ the discovery of silk □ the value of silk in China
□ the first silk clothes in China □ the role of the Silk Road
□ the spread of silk - making knowledge □ modern uses of silk
□ the silk - making technology used in Europe
□ the change in the top silk - producing country
3 - 2 Listen again and complete the table. Fill in each blank with no more than three words. 再听一遍介绍，补全表格，每空格最多三词。
3 - 1 Listen and tick (√) the information you hear. 听介绍，勾选出你听到的信息。
□ the discovery of silk □ the value of silk in China
□ the first silk clothes in China □ the role of the Silk Road
□ the spread of silk - making knowledge □ modern uses of silk
□ the silk - making technology used in Europe
□ the change in the top silk - producing country
3 - 2 Listen again and complete the table. Fill in each blank with no more than three words. 再听一遍介绍，补全表格，每空格最多三词。
答案
1. 3,000 years
2. popular
3. 200 BC
4. 550 AD
5. Europe
6. the centre
7. 1100s
8. Japan
9. By 2010
2. popular
3. 200 BC
4. 550 AD
5. Europe
6. the centre
7. 1100s
8. Japan
9. By 2010
4 Listen to Li Ming's speech. 听一段李明的演讲。
4 - 1 Listen and choose the best answer. 听演讲，选择最恰当的答案。
Which of the following is the main idea of the speech?
A.The history and future trends of clothing materials.
B.How to make modern smart clothes.
C.A comparison between ancient and modern clothing.
D.The importance of clothing in different cultures.
4 - 2 Listen again and complete the summary. Fill in each blank with no more than three words. 再听一遍演讲，补全概要，每空格最多三词。
In the past, people used things from nature to make clothes. They used (1), as well as (2).
Today, (3) has introduced us to man - made materials which have different qualities from natural materials. For example, swimwear is made from them because they (4). Many clothes today combine (结合) (5) materials. In the future, “smart” clothes may appear. They can change colour, (6) or even (7).
4 - 1 Listen and choose the best answer. 听演讲，选择最恰当的答案。
Which of the following is the main idea of the speech?
A.The history and future trends of clothing materials.
B.How to make modern smart clothes.
C.A comparison between ancient and modern clothing.
D.The importance of clothing in different cultures.
4 - 2 Listen again and complete the summary. Fill in each blank with no more than three words. 再听一遍演讲，补全概要，每空格最多三词。
In the past, people used things from nature to make clothes. They used (1), as well as (2).
Today, (3) has introduced us to man - made materials which have different qualities from natural materials. For example, swimwear is made from them because they (4). Many clothes today combine (结合) (5) materials. In the future, “smart” clothes may appear. They can change colour, (6) or even (7).
答案
A；(1) plant fibers；(2) animal skins；(3) technology；(4) waterproof；(5) natural and man-made；(6) adjust temperature；(7) generate power
解析
4-1题：演讲内容涵盖过去（自然材料）、现在（人造材料）和未来（智能服装），主旨为服装材料的历史与未来趋势，选A。4-2题：根据听力内容及八年级知识点，过去用自然材料，如植物纤维和动物皮毛；现代科技带来人造材料，泳衣因防水特性使用；如今结合自然与人造材料；未来智能衣服可改变颜色、调节温度或发电。
