4. Выберите правильный вариант. 1. You (must, have to) come and have a game of tennis with my son. You will be impressed. 2. The buses were full and we (must, had to) take a taxi. 3. I understand. You (mustn’t, don’t have to) translate. 4. You (must, have to) look both ways before crossing the road. 5. We’ll book a room for you. You (mustn’t, don’t have to) look for a hote.

5. Найдите в правой колонке эквиваленты английских слов и словосочетаний:
1. environmental protection 2. to absorb (smth) 3. acid 4. to pollute 5. to reduce the resources of forest 6. water shortage 7. to suffer an environmental problem 8. destroy 9. wastes 10. to damage the resources
a. сокращать лесные ресурсы b. защита окружающей среды c. разрушать d. поглощать e. загрязнять f. кислота g. нехватка воды h. отходы i. нанести ущерб ресурсам j. сталкиваться с проблемой окружающей среды

6. Найдите соответствующие ответы на вопросы и напишите их в той последовательности, в которой заданы вопросы:
Вопросы 1. What do people’s activities result in? 2. What happens to birds, animals, fish and people because of polluted water? 3. What do wastes of cars and plants destroy? 4. What must we do of we want our children to live in a healthier world?
ответы a. Many birds, animals and fish die of polluted water. Others are getting contaminated and people may get sick from eating them. b. We must learn to protect the water. The air and the earth from the pollution. c. Air and water pollution. d. The ozone layer which protects us from the sun.