Complete the questions with the correct form of the verbs in Exercise 1.
1 What kind of computer games do you
2 Did you a party on your last birthday?
3 What books or magazines have you this
week?
4 When do you
time with your family?
5 Are you going to the Internet later?
6 What instruments can you 2
7 Where do you usually
8 Do you and your friends often photos
with your mobiles?
your friends ответить на вопросы
Ecology is a science, looking to the future. And it is based on the principle that the value of the future is not as important as the values of the present.
The term "ecology" has arisen within biology. Its author was Professor
University of Jena Ernst Haeckel (1866). Ecology was originally seen as part of biology that studies the interaction of living organisms, depending on the state of the environment. Later, in the West the concept of "ecosystem", and in the USSR, "biocenosis" and "biogeocoenosis' (introduced Academician VN Sukachev). It is almost identical.
In all cultures and all nations has always been there is a perception of the need to care for the environment. Some have more, others - less. But the fact that the land, rivers, forest and wild beasts is the intrinsic value, perhaps, the main value of which has
Nature, Man, I realized a long time. For a long time, the main practical problems of ecology boils down to protecting the environment. But in the 20th century, this traditional thrift, which began to fade under pressure is a developing industry, has proved inadequate. Degradation
Nature has become a threat to the life of society. This led to a special environmental laws. To humanity in all growth raises the problem of the survival of the world. Questionable future of our species. Humanity could face the fate of the dinosaurs. The only difference is that the disappearance of the former rulers of the Earth was caused by external factors, and we can die from the inability to use their power wisely. This problem is the central problem of modern science (though it may be, this is not all yet realized).
Solving problems of this magnitude is only available to humanity. This will require changes in the organization of the planetary community, in other words, a new civilization, the most important adjustment - those value systems that are approved for centuries.
1. His sister studies English every day.
2. She studied English 2 hours ago.
3. Your brother went to school last Friday? Yes, he did.
4. I go to bed at ten o'clock every day.
5. I went to bed at ten o'clock yesterday
6. My brother washes his face every day.
7. Last night he washedhis face with soap and water.
8. I don't have History lessons every day.
9. We didn't rest yesterday.
10. My brother didn't drink coffee yesterday.
11. My mother always takes a bus to get to work, but yesterday she didn't take a bus. Yesterday she walked to her office.
12. You talk to the members of your family every day? Yes, I do. But yesterday I didn't talk to them: I was very busy yesterday.
13. You came to home at six o'clock yesterday? No, I didn't. Yesterday I came to home from school at half past eight. I was very tired. I had dinner with my family. After dinner I was very thirsty. I drank tho cups of tea. Then I rested.
14. Mary likes writing stories.
15. Last week she wrote a funny story about her pet.
16. You told your mother the truth about the money?
17. You wore your polkadot dress to work? Yes, I did. I wore it yesterday.
18. We likes to go to the beach. We enjoyed swimming in the ocean last weekend.