Answer the questions using the comparative degree of the adverbs.

1. Does Peter drive the car as carefully as Tom?

2. Does a car run as fast as a bus?

3. Did you come as late as your brother?

4. Does she speak French as well as her mother?

5. Do you speak English as slowly as your friend?

 

Step 3

Project work discussion

(s peaking-reading-speaking-writing)

Read and translate text B. Use the dictionary. Copy out specific terms.

Lesson 2. Text B. Municipal Water Supply and Water Discharge

The abundance of clean water makes it a good place to raise fish. Since everyone needs clean water, it is important to manage this natural resource and keep it clean so all of us can enjoy it. The construction of ponds and other types of aquaculture structures must be carefully planned to take an advantage of the natural site conditions and to minimize the environmental impacts of the project.

Groundwater aquifer. The best source of cool clean water is from a well. It is better to select a site with the groundwater table near the surface to reduce pumping cost. So pumping from your well does not draw water away from any municipal well.

Surface water supply. You may withdraw of surplus flow from a navigable lake or stream as long as the withdrawal does not injure any public rights in that waterway. If you need more than surplus flow you need to construct a permanent intake structure in the waterway. You may construct a dam in order to create a pond to withdraw water for your fish farm.

Water discharge. An aquaculture site will be able to discharge to a receiving stream that has adequate flow to assimilate the discharge without changing the water quality of the stream. Small streams have less ability to assimilate pollutants and temperature changes that can result from fish farm discharges. Discharge to streams will have to be as clean as the stream water. All aquaculture systems should be designed to incorporate best management practices that will collect all settleable solids prior to discharge. The discharge should also minimize the difference in water temperature between the discharge water and the receiving stream. As you understand each aquaculture system should be designed so as to minimize environmental impacts.

Write a short report of about 10 sentences evaluating the problem of natural and municipal water sources, use the terms which you have picked up in ex.1.7.

Be ready to prove your point of view in the class.

Test 2

CHOOSE THE RIGHT ANSWER

1. Water supply is the …… factor in selecting the proper location for an aquaculture facility.	a – important;
b – most important;
c – more important.
2. Wells and springs rank the … in terms of all quality.	a – high;
b – higher;
c – highest.
3. This type of pond is … productive.	a – little;
b – less;
c – the least.
4. The abundance of clean water makes it a … place to raise fish	a – good;
b – better;
с – best.
5. The … source of cool clean water is from a well.	a – good;
b – better;
c – best.
6. Small streams have …ability to assimilate pollutants.	a – little;
b – less;
c – least.
7. Aquatic organisms depend upon-… for all their needs.	a – salt;
b – wind;
c – water.
8. Fish need… to breathe, eat, grow and reproduce.	a – gases;
b – milk;
c – water.
9. …can be classified as: wells, springs, groundwater, steams, rivers, lakes.	a – water sources;
b – water supply;
c – ground water aquifer.
10. Wells and … are usually uncontaminated.	a – groundwater;
b – rivers;
c – streams.
11. … sometimes is used where ponds are dug into existing water table.	a – lakes;
b – rivers;
c – groundwater.
12. ……… also can be use to produce aquatic organisms.	a – ocean;
b – groundwater;
c – rivers.
13. The abundance of … water makes it a good place to raise fish.	a –clean;
b – dirty;
c – contaminated.
14. Groundwater aquifer is ….	a – the best source of cool clean water;
b – the site with groundwater table near the surface;
c – pump.
15. Surface water supply is ….	a – delivering of surplus flow from a navigable lake;
b – pumping water from a well;
c – receiving water from rain.
16. Water discharge is ….	a – drainage;
b – flow to a receiving stream;
c – groundwater aquifer.
17. Each aquaculture system should be designed so as to … environmental impact.	a – minimize;
b – maximize;
c – utilize.
18. Well is.....	a – groundwater;
b – spring;
c – river.
19. Municipal water is...	a – a well;
b – a lake;
c – an artificial pond.
20. A specialized use of well water is warm water from …wells.	a – geothermal;
b – deep;
c – shallow.
21. All aquaculture systems should be designed to incorporate best … practices.	a – management;
b – medical;
c – physical.
22. The construction of aquaculture structure must be … planned.	a – carefully;
b – incorrectly;
c – inexactly.

 

 

Unit 3

1. Different Categories of Water as for Habitats of Aquaculture 2. Classification of aquaculture 3. Indefinite Tenses

 

Step 1