Вставьте предлоги with, about, by, from, of, on, at, of, about, from, — 1 ecology deals … the relationships of man and nature. 2 the whole world is threatened … an ecological catastrophe. 3 all countries ought to join the efforts to save the earth … an ecological disaster. 4 sustainable development is the one that doesn’t deprive future generations … the same type of opportunities we have now. 5 more than two hundred million people depend … the tropical forests for shelter and food. 6 trees are being cut down … an alarmingly high rate. 7 people are becoming more and more aware … ecological problems. 8 pollution of water and air is one of the main problems people are concerned … today. 9 how can we protect our soil… further waste? 10 if we don’t think hard of ecology we must be ready to face … the consequences.

“What is happening to our young people? They disrespect their elders; they disobey their parents. They ignore the law. They riot in the streets, inflamed with wild notions.Their morals are decaying. What is to become of them?” Plato 4th Century!!  (цитата)

What kind of problems do teenagers have nowadays?
Young people can meet difficulties everywhere: at home, at school, in the street. They face to different problems. They are  as school problems, emotional problems, health problems, at home with parents ,     misunderstanding  ,  smoking  ,    using drugs   ,   using alcohol drinks  ,    relationships with lovers.  The teenager is kind enough. Someone  tries to get  good education  nowadays.
Someone is sure that the most important thing in life is health, freedom and the ability to adapt.
Someone  go in for different kinds of sport.  Someone enjoy drugs, alcohol, and smoking. Someone try to make the around world better.
I think that  youth is a very important period in the life of man. This is the time when a  youth  tries to determine  themsel fplace in this world.
Young people of today do not directly accept the standards of their parents who believe that they are right because they are older. so the young and adult do not understand one another. All these things generate a generation gap.
As a kind of protest against the values and lifestyles of the older people informal groups appeared. For example  such as Hippies, Rockers, Bikers, Skinheads, Punks, Goths
I believe  a great future is reserved for Modern Youth in Russia

I have got a big and cosy room on the first floor of our house. There is a big window with lace curtains in it, so my room is full of light. I spend a great deal of my time in this room: I do my homework, listen to music, read books and chat with my friends via the Internet. 

The wallpapers are white with light blue flowers. There is a poster of my favourite music band above my bed. There is also a round mirror hanging on the wall and a small table under it. In the mornings I do my hair in front of it.

I also have a big desk with a table lamp on it. I do my homework at it and sometimes draw small pictures with colour pencils. I keep my workbooks and exercise books on the shelf above the desk. It is very convenient, as I have everything at hand while doing my homework.

My bed is not big, but comfortable. I like reading in bed before going to sleep, so I have a wall bracket lamp on the wall. I have got a lot of books and there is a bookcase near my bed.   

Перевод

У меня большая и уютная комната на втором этаже нашего дома. В ней большое окно с тюлевыми занавесками, поэтому моя комната полна света. Я провожу в своей комнате много времени: выполняю домашние задания, слушаю музыку, читаю книги и переписываюсь по Интернету со своими друзьями.

Обои белые с голубыми цветами. Над моей кроватью висит плакат моей любимой музыкальной группы. Еще на стене висит круглое зеркало, и под ним стоит маленький столик. По утрам я перед ним причесываюсь.

Также у меня есть большой письменный стол с настольной лампой. За ним я делаю домашнюю работу и иногда рисую картинки цветными карандашами. Свои учебники и тетради я храню на полке над столом. Это очень удобно, так как все под рукой, когда я делаю домашние задания.

Моя кровать не большая, но удобная. Мне нравится читать в кровати перед сном, поэтому у меня на стене висит бра. У меня много книг, и возле кровати стоит книжный шкаф.