Английский язык. Учебно-методическое пособие к практическим занятиям для биологов бакалавриата и магистратуры
Шрифт:
3. Copy out of each paragraph the sentences containing the most important information.
4. Read the text again and write a brief summary of it.
5. Make up a plan of the text.
UNIT VI
New words and expressions:
concerted – согласованный
alleviate – облегчать
beset – осаждать
adequate – адекватный, достаточный
implementation – выполнение
priority – приоритет
dike – насыпь, ров
trap – капкан, ловить
frequency –
expanse – пространство
feasible – осуществимый, возможный
consolidate – укреплять
loose – свободный, рыхлый
hence – отсюда, с этих пор. следовательно
restore – восстанавливать
revive – возрождать
reasonably – разумно, основательно
assume – принимать, предполагать
original – оригинальный, первоначальный, подлинный
remain – оставаться
maintain – поддерживать
competitor – конкурент
indigenous – туземный, местный
Read the international words and give their Russian equivalents:
chief, resources, storm, chemicals, consolidate, material, situation, practical, condition, zone, optimal, argument, original, flora, fauna, type, select, cooperative, state, national, community, critical, problem, region, adequate, population, result, reconstruction, irrigation, priority, decade
With a concerted and cooperative effort among the Aral Sea Basin States and the real help from Russia and the international community, there is hope to alleviate, at least partially, the most critical problems that beset the Aral Sea region. The key issues of health and medical improvement, providing an adequate supply of clean drinking water and implementation of measures to bring down population growth should be started immediately and could show major results within a decade. Reconstruction of irrigation systems to save water is also a priority, but will take decades to implement fully.
Efforts to preserve the delta of the Amu-Dar'ya are important because of its ecological and economic value. One proposal is to construct a low dike or dikes on the dried bottom in front of and around the delta to reflood former gulfs and raise ground water levels, partially restoring its former ecological character; improving agriculture, fisheries and trapping: and providing a barrier to salt, sand and dust blowing from the dried bottom of the Aral Sea.
Reducing the frequency and severity of salt and dust storms is also a priority. This could be accomplished by stabilization of the large expanses of saline former bottom along the northeastern and eastern shoreline of the sea which are the chief sources of such storms. The most feasible means for stabilization is planting of salt-tolerant vegetation (e.g. black saksaul) and application of chemicals to consolidate the loose surface material.
Partial restoration of the small sea is also feasible. Naturally separated from the large sea in 1987 its level could be raised with relatively small increases of inflow, compared to the situation for the large sea, since its surface area, and hence evaporation losses, are much smaller.
To restore the entire Aral Sea to its size would be a daunting task.
Practical consideration may dictate that even under the best of future circumstances, the Aral Sea can only partially be revived. Assuming the discharge to the sea were reasonably clean, endemic flora and fauna could be reintroduced to the sea from lakes in the Amu-Dar'ya and Syr-Dar'ya delta where they still survive (or from other lakes with similar ecological conditions to the pre1960s Aral Sea, such as Balkhash). They would probably do well in the freshened zones around the mouth of the Amu-Dar'ya and Syr-Dar'ya, even though the salinity in the open sea would be above the optimal for them. This is a powerful argument for making efforts to preserve what remains of the original flora and fauna of the Aral Sea, either in deltaic lakes or in parts of the remaining sea in which habitat conditions of the pre-recession Aral Sea could be artificially maintained. More salt-tolerant types of fishes could also be introduced, as long as care was taken to select species that would not become major competitors to the indigenous varieties.
EXERCISES:
1. Form nouns from the following verbs and translate them into Russian:
plant, restore, separate, increase, implement, consider, revive, compare, situate, evaporate, select, dictate, argue, maintain, introduce, cooperate, state, result, reconstruct, irrigate, alleviate, issue, improve, provide, supply, measure, show, start, save, propose, trap, reduce, stabilize, mean.
2. Find in the text the English equivalents for the following words and word-combinations:
согласованные
3. Answer the following questions:
1. What are the most critical problems of the Aral Sea region?
2. Why is it important to preserve the delta of the Amu-Dar'ya?
3. Why is it necessary to reduce the frequency and severity of salt and dust storms?
4. What are the chief sources of the storms?
5. Can the entire Aral Sea be restored to its prerecession size?
6. Why should the endemic fauna and flora be reintroduced to the sea?
7. Why should salt-tolerant vegetation be planted in the Aral Sea region?
4. Copy out of each paragraph the sentences containing the most important information.
5. Express the main idea of the whole text in English.
UNIT VII
New words and expressions:
surround – окружать
accompany – сопровождать
owing to – из-за, по причине, вследствие
underestimate – недооценивать
confident – уверенный
benefit – польза, выгода
outweigh – перевешивать
harm – вред
experience – опыт
throe – муки, агония
reverse – изменять
rectify – исправлять
appeal – взывать, обращаться
proposal – предложение