Complete the following sentences with the words from the box. There are two extra words which you don’t need. 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.
1. Has the capitan signed the papers? The capitan hasn't signed the papers. 2.We don't have dinner at 1 p.m. Do we have dinner at 1 p.m.? 3.There weren't many sailors on deck. Were there many sailors on deck? 4.These ships aren't completely reconstructed. Are these ships completely reconstructed? 5.The cadets aren't listening to the teacher now. Are the cadets listening to the teacher now? 6.I didn't entere the college last year. Did I entere the college last year? 7.Ann won't go to the cinema tonight. Will Ann go to the cinema tonight? 8.My parents don't live in Murmansk. Do my parents live in Murmansk? 9.She didn't take this book from the libraly. Did she take this book from the libraly? 10.It isn't winter now. Is it winter now?
Two friends were camping together of a river. Their names were Jim and Tim. Tim was very lazy boy. On the first evening of their holiday, Jim said to Tim, "Here’s some money. Go and buy some meat."
"I’m too tired," answered Tim. "You go." So Jim went to buy the meat.
When he came back, he told Tim that he must cook it. But Tim explained, "No, I’m not good at cooking. You must do it." So Jim fried the meat. Than Jim cut the bread as Tom did not want to do it. After that he offered his friend brung some water.This time Tim replied: "No, I don’t want to get my clothes dirty" .So Jim got the water.
At last the meat was ready and Jim invited Tim to eat it.
"Well, I can do that," - agreed Tim. "I don’t like saying “No” all the time."
4.These ships aren't completely reconstructed. Are these ships completely reconstructed?
5.The cadets aren't listening to the teacher now. Are the cadets listening to the teacher now?
6.I didn't entere the college last year. Did I entere the college last year? 7.Ann won't go to the cinema tonight. Will Ann go to the cinema tonight?
8.My parents don't live in Murmansk. Do my parents live in Murmansk? 9.She didn't take this book from the libraly. Did she take this book from the libraly?
10.It isn't winter now. Is it winter now?
Two friends were camping together of a river. Their names were Jim and Tim. Tim was very lazy boy. On the first evening of their holiday, Jim said to Tim, "Here’s some money. Go and buy some meat."
"I’m too tired," answered Tim. "You go." So Jim went to buy the meat.
When he came back, he told Tim that he must cook it. But Tim explained, "No, I’m not good at cooking. You must do it." So Jim fried the meat. Than Jim cut the bread as Tom did not want to do it. After that he offered his friend brung some water.This time Tim replied: "No, I don’t want to get my clothes dirty" .So Jim got the water.
At last the meat was ready and Jim invited Tim to eat it.
"Well, I can do that," - agreed Tim. "I don’t like saying “No” all the time."