Exercise 1.ответьте на вопросы – 1. Чем модальные глаголы отличаются от обычных? 2. Почему модальный глагол не может самостоятельно употребляться, а только в паре с обычным? 3. Что образуют совместно модальный глагол и следующий за ним обычный? 4. Почему недостаточно знать перевода модального глагола для его употребления? 5. Почему модальные глаголы с одинаковым переводом не являются синонимами? 6. Как ты думаешь, какие из этих глаголов являются не настоящими модальными глаголами, а лишь используются иногда в этой роли?

Ex. 2 Поставьте предложения в вопросительную и отрицательную формы.

1. My sister is playing the piano now.
Is my sister playing the piano now?
My sister isn’t playing the piano now 2. The teacher is explaining the rule.
Is the teacher explaining the rule?
The teacher isn’t explaining the rule
3. We are learning the new words.
Are we learning the new words?
We aren’t learning the new words
4. Ann is standing at the window.
Is Ann standing at the window?
Ann isn’t standing at the window
5. We are going to the park..
We aren’t going to the park..
Are we going to the park?
6. John is taking a piece of chalk and writing a sentence on the blackboard.
Is John taking a piece of chalk and writing a sentence on the blackboard?
John isn’t taking a piece of chalk and writing a sentence on the blackboard
7. I am doing my homework.
Am I doing my homework?
I am not doing my homework.
8. Jane is speaking on the telephone.
Jane isn’t speaking on the telephone
Is Jane speaking on the telephone? 9. She is cooking supper.
She isn’t cooking supper.
Is she cooking supper?

Ex. 3 Раскройте скобки, употребляя глаголы в Present Simple или Present Progressive

1.The man who is speaking with my mother is our neighbor who lives across the street. 2. It is a very interesting scientific film. In it you can see how the plants are growing right before your eyes. 3. Where are you hurrying? — I am hurrying to the railway station. My sister comes from Moscow. 4. Do you hear the speaker well? — Yes, I hear him clearly. I am listening to very attentively, but still I don’t understand the main point of his speech. 5. Don't come into this room. Father is working there now. 6. Where are you going this Sunday? — This Sunday I am going to the country, but usually on Sundays I stay at home.

Ex. 4 Раскройте скобки, употребляя глаголы в Future Progressive.

1. Не won’t be waiting for us at 6 o'clock tomorrow. 2.I will be translating this article, when my mother come. 3. The conference will be taking place from 2 till 6 o'clock on Monday. 4. How long will you be staying at your parents?

The problem of ecology is very controversial nowadays. There are a lot of different problems that people should solve together: pollution of air, rivers and ocean, deforestation and, of course, one of the most important problem today. It's global warming!  
I am sure, everyone can help to save the environment and nature. Firstly, we should not litter on the streets, throw thing into the water and save the water!
We should not fire in the forests because it is usually the cause of forest fires.
We always must remember about our natute and help it all the methods we can!

100 words!