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II. Answer the following questions:

1. When was synthetic fiber introduced? 2. When was the first production of nylon? 3. Where is nylon used? 4. How do we care of nylon garment? 5. Who was Wallace H. Carothers? 6. How is nylon made? 7. What are the properties of the nylon?

III. Give the definition of the following terms:

1. nylon 2. a spinneret

IV. Ask all possible questions to the sentences. White nylon should be washed separately to avoid it turning grey. Wallace H. Carothers, a chemist of the Dupont Company played the leader in this development of nylon.

V. Complete the sentences:

1. It was another early substitute … 2. Extensive washing and drying … 3. It can also be made into …. 4. Nylon is made by … 5. This man-made fiber …

VI. Put the articles if necessary 1. Nylon is made by …forcing molten nylon through very small holes in … device called …spinneret. 2 Wallace H. Carothers … chemist of …Dupont Company played … leader in this development of… nylon. 3. This man-made fiber is … second most used fiber in … United Stat 4. Nylon is … strong, light synthetic… fiber.

VII. Retell the text.