ENVIRONMENT

LET'S GET TO WORK!

1. Add the words to the sentences and read them aloud.

To pollute, to threaten our health, smog and fog, plants, insects and animals, to extinct, to disappear, to breathe fresh air, to solve the problem, to save the planet, to plant trees, to create parks, to recycle our wastes.

1. Industrial enterprises_nature.

2. Polluting agents_.

3.___are very dangerous.

4. We have a lot of_in our garden.

5.___disappear very quickly because men pollute air and

water.

6. I like to go to the park to__.

7. How can we__our planet?

8. In order to___we all must protect nature.

9. It is very useful to_ and__.

10. To protect our nature, we must__.

GRAMMAR

Эквиваленты модальных глаголов

■ Can = be able to (быть способным).

■ Must = have to (быть должным).

■ May = be allowed to (иметь разрешение).

■ Should = be supposed to (подразумеваться, быть должным) - не во всех случаях.

Заменить should на be supposed to можно только в некоторых случая, подробнее читайте в отдельной статье.

Модальные глаголы считаются недостаточными - это значит, что у них нет форм будущего времени, у некоторых (must) нет формы прошедшего времени. С помощью синонимов можно заменять недостающие формы модальных глаголов.

Модальные глаголы и их эквиваленты

Основные случаи употребления модальных глаголов

PRACTICE

28.1. Complete the sentences with the correct modal verb. Use must, mustn't, or don't have to.

I___go to my college from Monday to Friday. In our college we___wear a uniform, so

I normally wear sports clothes. We___arrive

late. We and____attend every class. In our class

room, we___shout, play or sing. Some of us

___have lunch at school, but I go home for

a lunch. When my classes finish, I___to take

my little sister from the primary school. When my parents come