Project Work Discussion. Specific Type of a Fish Farm

(Speaking-Reading-Speaking-Writing)

Read and translate text B, use the dictionary, pick up unknown words.

Give sound reason to prove the point that cage culture is the alternative to pond culture

Text B. Specific type of a fish farm

Cage system. Cage industry has made numerous technological advances in cage construction in recent years. Fish cages are placed in lakes, bayous, ponds, rivers or oceans to contain and protect fish until they can be harvested. They can be constructed of a wide variety of components. Fish are stocked in cages, artificially fed and harvested when they reach market size. A few advantages of fish farming with cages are that many types of waters can be used (rivers, lakes, filled quarries), many types of fish can be raised and fish farming can co-exist with sport fishing and other water uses. Cage farming of fishes in open seas is also gaining popularity. Concerns of disease, poaching, poor water quality lead some to believe that in general, pond systems are easier to manage and simpler to start.

Test 4

Choose the correct answer:

1. The rain …just ….	a – is beginning,
b – were beginning,
c – begins.
2. It… …. Do not go out.	a – snows,
b – is snowing,
c – will be snowing.
3. He… not … football this season.	a – is playing,
b – were playing,
c – will be playing.
4. The secretary … a letter now.	a – are typing,
b – were typing,
c – is typing.
5. You … … a lot of noise.	a – is making,
b – were making,
c – are making.
6. I … … to get some sleep.	a – try,
b – am trying,
c – will try.
7. They … … the flat all morning.	a – was cleaning,
b – is cleaning,
c – were cleaning.
8. She … … on her report all Saturday.	a – were working,
b – is working,
c – was working.
9. The wind … … all day.	a – will be blowing,
b – was blowing,
c – am blowing.
10. They … … …. dinner tomorrow at six.	a – was having,
b – will be having,
c – will have.
11. Usually we … our examinations in June.	a – is passing,
b – pass,
c – will pass.
12. She … us from time to time.	a – visits,
b – is visiting,
c – was visiting.
13. Look! The bus … ….	a – will come,
b – is coming,
c – came.
14. My brother … … over the telephone when I came in.	a – spoke,
b – will speak,
c – was speaking.
15. My friend … … TV when I came.	a – watched,
b – watches,
c – was watching.
16. …… of water facilities may be needed for growing fish.	a – two kinds,
b – several kinds,
c – many kinds.
17. These facilities are grouped into … types.	а – 5,
b – 7,
с – 4.
18. A concrete raceway is constructed, when there is ….	a – abundant supply of clean water,
b – few water,
c – abundant supply of warm water
19. The … … … … creates a favorable place to raise fish.	а – tide,
b – constant flow of water,
c – a receiving stream
20. The whole week before examinations my friend...... tests.	a – passed,
b – was passing,
c – will pass.
21. … … … require a receiving stream that has adequate flow.	a – pond systems,
b – flow-through systems,
c – cage systems.
22. … require more land area.	a – pond systems,
b – cage systems,
c – recirculating systems.
23. Higher densities of fish may require … aeration.	a – chemical,
b – mechanical,
c – physical
24. The advantage of … … is that a high densities of fish can be kept at optimum temperatures.	a – pond systems,
b – recirculating systems,
c – cage systems.
25. … … uses existing water resources.	a – cage system,
b – pond system,
c – recirculating system
26. … … is an alternative to pond system.	a – recirculating system,
b – raceways.
c – cage culture

Unit 5

1. Systems of Aquaculture 2. Production Phases 3. Perfect Tenses

STEP 1

Дата добавления: 2015-11-14