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Test keys

Test 1. c, b, c, b, b, b, b, a, d, a, d, b, a, b, b, c, c, d, d, c, c, d, d, b, c.

Test 2. c, b, c, d, c, d, c, c, d, a, d, c, b, b, d, c, d, c, a, b, b, c, b, d, a.

Test 3. c, c, c, c, a, d, b, a, b, a, b, d, a, a, b, c, b, d, b, b, a, a, b, c, b.

Test 4. b, c, c, c, a, d, b, a, b, d, d, a, b, a, b, c, d, a, b, c, c, a, b, c, a.

Test 5. b, a, b, d, d, b, c, b, a, d, c, c, a, d, c, d, c, b, a, b, c, b, a, a, a.

Test 6. I. – b, b, b, c, b;

II. – b, c, b, a, b;

III. – 3, 5, 1, 2, 4;

IV. – 3, 4, 5, 1, 2.

Test 7. I. 1.D. 2.A. 3.C. 4.C. 5.A. 6.C.

II. 1.C. 2.D. 3.D. 4.C. 5.D.

III. 1 – 3. 2 – 4. 3 – 5. 4 – 6. 5 – 1. 6 – 2.

IV. 1. application efficiency. 2. land grading. 3. rolling. 4. filling. 5. flooding.

Test 8. I. 1.D. 2.C. 3.A. 4.C. 5.B.

II. 1. agriculture. 2. labour. 3. requirements. 4. mains. 5. underground. 6. laterals.

III. 1. A. 2. C. 3. B. 4. B. 5. B. 6. C.

IV. 1 – 3. 2 – 4. 3 – 6. 4 – 2. 5 – 1. 6 – 5.

Test 9. I. 1. C. 2. C. 3. C. 4. C. 5. D.

II. 1. D. 2. C. 3. C. 4. D. 5. D.

III. 1. conditions. 2. materials. 3. suitable. 4. drain. 5. mole hole. 6. supply.

IV. 1 – 4. 2 – 5. 3 – 6. 4 – 1. 5 – 2. 6 – 3.

Test 10. I. 1.B. 2.D. 3.D. 4.B. 5.C.

II. 1.C. 2.A. 3.B. 4.D. 5.C. 6.D.

III. 1 – 4. 2 – 6. 3 – 5. 4 – 1. 5 – 3. 6 – 2.

IV. 1. atmosphere. 2. stable crops. 3. domestic wastewaters. 4. industrial wastes. 5. air pollution. 6. depletion.

Test 11. I. 1.D. 2.C. 3.C. 4.B. 5.A. 6.B.

II. 1 – 3. 2 – 6. 3 – 1. 4 – 2. 5 – 4. 6 – 5.

III. 1.D. 2.A. 3.A. 4.D. 5.D. 6.C.

IV. 1. natural resources. 2. artesian well. 3. surface water. 4. zone of leaching. 5. drainage pipe. 6. river basin.

Test 12. I. – b, c, a, b, d;

II. – a, c, c, b, c, c;

III. – 4, 3, 2, 1;

IV. – 4, 3, 2, 5, 1.

Test 13. I. 1.D. 2.C. 3.D. 4.D. 5.D. 6.C.

II. 1.D. 2.B. 3.B. 4.D. 5.C. 6.A.

III. 1. resources. 2. urgent measures. 3. reclamation. 4. irrigation programme. 5. communicating vessels. 6. water consumers.

IV. 1 – 5. 2 – 4. 3 – 1. 4 – 2. 5 – 6. 6 – 3.

Test 14. I. 1.D. 2.B. 3.C. 4.C. 5.B. 6.D.

II. 1.B. 2.D. 3.D. 4.D. 5.B. 6.C.

III. 1. narrow emplacement. 2. resisting. 3. buttresses. 4. gravity dams. 5. cantilever action. 6. increased formwork.

IV. 1 – 3. 2 – 6. 3 – 5. 4 – 1. 5 – 2. 6 – 4.

Test 15. I. 1.D. 2.C. 3.D. 4.B. 5.A. 6.C.

II. 1.D. 2.B. 3.A. 4.A. 5.A. 6.B.

III. 1. water supply. 2. reclamation. 3. water management. 4. power stations. 5. underground water. 6. canals.

IV. 1 – 3. 2 – 6. 3 – 4. 4 – 1. 5 – 2. 6 – 5.

Part II

Supplement I

Professionally oriented texts for autonomous studying and the development of communicative language competences

TEXT 1. WATER

1. Read the text below and say what new you have learnt and what you are familiar with:

Waterwheels, mills and factories

The energy from fast flowing rivers and streams has been used for hundreds of years. Cornmills used waterwheels to grind corn and factories used them to power looms to produce cloth.

Energy from water is used today

Nowadays large dams are built to store the energy of rivers and use it to produce electricity. Waterwheels have been replaced by turbines and the turbines turn generators to produce electricity. When electricity is made from water power it is called hydro electricity.

Water is renewable

Unlike other sources such as oil, coal and gas which can only be used once, the energy we get from rivers and tides will last forever.

As long as the sun shines there will be water to use to produce energy. Because it will last forever it is called a renewable source of fuel.

Water is important to us

A large part of the earth's surface is covered by water.

It even makes up nearly of a person's weight.

Droughts sometimes happen because water is not spread evenly throughout the world.

We can see water as a liquid in rivers, lakes, seas and oceans. It is also frozen solid as ice in very cold places. More of it is above us as a gas called water vapour.

The sun heats water on the sea and land. The water evaporates and rises into the air as water vapour to form clouds. As the clouds cool they fall back to earth again as rain, hail and snow. Rivers then carry the water back to the sea. This is known as the water cycle.

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