Exercise 15. Study the grid of possible word combinations and solve the riddles.

Exercise 14. Read the definitions.

Exercise 13. Read the examples and choose the right answer to the question from the options in the box.

Language work

Exercise 12. Discuss the following questions in pairs and share your opinion with the class.

Exercise 11. Read the text again and answer the questions.

According to the survey:

1. What age group is mainly responsible for dropping litter?

2. What places are most littered?

3. What are the four reasons for teenagers to drop litter?

1. Do you agree that the reasons mentioned are serious enough to make the teenagers behave like this?

2. Do you think that teenagers are mainly responsible for dropping litter in your home area?

• Why do you think there is no article with the underlined nouns?

1. Teenagers have admitted they drop litter...

2. The survey found that boys say that putting rubbish in a bin would make them appear "soft" or "uncool".

3. Water and air pollution affects people's health.

litter- waste such as empty packets, bottles and pieces of paper that people have dropped in the street or in a public place

waste— used, damaged or unwanted matter (materials or substances esp. after it has been used for an industrial process

garbage — esp.AmE, rubbish— esp. BrE waste material e. g. from a house or office to be thrown

1. It is connected to a sink to get rid of dirty water after washing up.

2. They are big and placed outside houses in the backyard. People throw their garbage

into them.

3. We have it in our kitchen to throw away everything that is not needed any more.

4. We can find them on the streets to throw away wrappers, plastic bags etc.