|
Читайте также: |
Not long ago cancer was considered as incurable disease. During the last years and particularly after the Second World War medicine has been making an extremely violent effort to produce drugs which can effectively control cancer. It should be noted that the problem of developing a really useful drug has been complicated primarily by confusing aspects of the etiology of cancer. Carcinoma may occur in any organ of the body. At present the cause of appearing certain malignant tumors cannot be solved. Up to day the most effective and successful methods of treating carcinoma are surgery and radiation therapy which must be applied only to localized tumors. Lately chemotherapy has been developing extensively. The results of this method may be unpredictable.
For the last decade the drug treatment of cancer has been carrying on in several ways depending on the type of involved cancer. Namely, antimitotic agents are to prevent cell division. But it has been found that they are highly toxic and their use has to be limited. A large number of analyses of cancerous tissues have revealed a much higher concentration of folic acid in the diseased tissue. It must be admitted that the pioneer in this field was amino-pterin which showed as a good therapeutic agent.
The third group of carcinolytic drugs includes any compounds possessing active alkyl radicals. A patient must take 6 – 10 mg. of these drugs per day at weekly intervals. Some success has been achieved with hormones. Certain cancerous manifestations are treated with antibiotics. They had been used before radioisotopes were discovered for cancer therapy. It may be stated that the earlier the carcinoma has been diagnosed, the better the prognoses will be.
Задание 2. Образуйте все возможные производные части речи от следующих слов и переведите.
produce, effect, use, cure, treat, method, organ, effect, cause, drug, prima, present, solve, success, divide, predict, carcinoma, concentration, therapeutic, active
Задание 3. Переведите слова и словосочетания из текста.
лекарственная терапия рака; до сих пор; совсем недавно; купировать рак; хорошее лечебное средство; проблема усложняется некоторой путаницей в вопросе этиологии рака; лечение хирургическим путем и радиотерапией; группа лекарств, разрушающих клетки раковой опухоли; локализованные опухоли; в течение последнего десятилетия; непредсказуемое; в зависимости от; антиметотические средства.
Задание 4. Подчеркните сказуемое следующих предложений, укажите время, видовременную группу, залог.
1. Medicine has been making an extremely violent effort during the last years.
2. They had been used before radioisotopes were discovered for cancer therapy.
3. The earlier the carcinoma has been diagnosed, the better the prognoses will be.
Задание 5. Выпишите из текста все формы Perfect и Perfect Continuous active/passive.
Задание 6. Найдите предложения с модальными глаголами и их эквивалентами; поставьте к ним общий вопрос и дайте краткий ответ.
Задание 7. Выпишите из текста наречия и укажите их функцию.
Задание 8. Найдите в тексте эквиваленты следующих предложений.
1. Now it is impossible to determine the reason of developing malignant swellings.
2. It has been discovered that they are very poisonous and their application must be restricted.
Задание 9. Составьте предложения из следующих слов.
1. elements, in, occur, the inorganic, nature, widely.
2. substances, are, certain, as used, and compounds, drugs, their.
3. table, groups, periods, the periodic, of, consists, vertical, and horizontal.
Задние 10. Дайте ответы на английском языке.
1. When has medicine been making a violent effort to produce drugs against cancer?
2. Why has the problem of really useful drug been complicated?
3. Where may carcinoma occur?
4. How has the drug treatment of cancer been carrying on for the last years?
5. What has been found about antimitotic agents?
6. What shoed as a good therapeutic agent?
7. What can you tell about the third group of carcinolytic drugs?
8. How must a patient take them?
9. Where has some success been achieved?
10. What is the importance of early diagnosis?
Вариант № 3
Задание 1. Прочтите текст и переведите на русский язык.
Дата добавления: 2015-02-22; просмотров: 201 | Поможем написать вашу работу | Нарушение авторских прав |