2 Match the words. Then, use the phrases to complete the sentences. 1 tropical 2 coral 3 breeding 4 cough 5 crystal 6 forest 7 tree a reef b floor с bark d clear e mixture f rainforests g grounds 1 Without tropical rainforests, the Earth cannot support life as we know it. 2 A lot of medicines come from tree dark 3 A conservation programme in Australia is trying to protect the coral reef there. 4 Forests are great breeding grounds for birds and animals. 5 I prefer this beach because the water is crystal clear 6 No house should be without a bottle of cough mixture during the winter. 7 There is so much vegetation that it is difficult to see the forest floor