Make up sentences from the following words and translate them.

1. Flax, have been use, jute, and hemp, for, such, as, “engineered”, products, rope, water hose, cordage, nets, since, antiquity.

2. Brushes, have been used, other, plant, fibers, and, animal, heavy, structural, and, close, paper, for, felts.

3. Synthetic, fibers, glass, common, fibers, of all, engineering, are, probably, the most.

5. Turn the following sentences from Direct Speech into Indirect Speech:

1. The scientist said: “Fibers have been already used as engineering materials for centuries”.

2. They declared: “The fiber industry is clearly divided between natural fibers and synthetic fibers”.

3. He declares: “For engineering purposes glass, metallic and organically derived synthetic fibers are the most significant”.

4. The engineer said: “Glass fibers are probably the most common of all synthetic engineering fibers”.

5. He said: “We used glass fibers for heat insulation”.

5. Answer the following questions:

1. Why are fibres the oldest engineering materials used by man?

2. Where were plant and animal fibres used?

3. How is the fibre industry divided?

4. Why do synthetic fibres replace natural fibres?

5. Where is nylon used?

6. What are the properties of the metal fibres? Where are metal fibres used?

7. What fibres are the most common of all synthetic engineering fibers?

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