IV. Complete the following sentences with the words from the box. There are two extra words which you do not need

III. Read the poster and fill in the blanks with prepositions if necessary.

II. Match the words in column A with their synonyms in column B.

1. strain a sow

2. strong b type

3. die out c resistant

4. opposing d become extinct

5. cultivated e liability

6. plant f hardy

7. responsibility g grown

DON’T MISS YOUR CHANCE TO SEE ME!

__ one time, koalas were hunted ___ their fur. ___ the 1920's, the animals had been almost wiped ___ ___ hunters. ___ then, killing ___koalas has been prohibited ___law. But the koala___ population has continued to decline. People have cut ___ eucalyptus forests ___housing developments, resorts, and farmland. ___ addition, many___koalas are hit ___cars.

THEIR FUTURE SURVIVAL IS UP TO US!!!

predators rainforests natural habitat bacteria biodiversity perennial annual cross-bred strains balance of nature liability species insects extinction upset ecosystem

1. Dahlias are ____ plants.

2. Many ____ of plants and animals are at risk of _____.

3. The treaty on ____ was signed in Rio de Janeiro in 1992.

4. Young rabbits provide food for a variety of ____.

5. Last year our enterprise ____ four new ____ of corn.

6. _____ exist in large numbers in air, water and soil, and also in living and dead creatures and plants.

7. Colorado potato beetles, May beetles and dragonflies are _____.

8. The Amazonian _____ are the lungs of the earth.

9. Dill is a _____ plant.

10. This creature’s _____ _____ is the jungle.

11. The _____ of our planet is very fragile.

12. We have the power to ____ the balance of nature but we cannot restore it.

Дата добавления: 2014-11-16