1. Translate the sentences into Russian.
1. If the weather is fine tomorrow, we shall go to the picnic.
2. He would help you do this translation if you asked him
3. It would be wonderful if Ann were here with us.
4. It would not do you any harm if you did this exercise a second time.
5. If my grandfather had had a chance to study, he would have been a great man.
6. The teacher suggested that we should go to the museum next week.

2. Fill each blank space with the word formed from the word in the capitals.
1. POLLUTE
Most of the … in big cities comes from cars.
2. ENVIRONMENT
The result of the … crisis is that in many parts of the Earth humans are beginning to suffer from shortages of food and clean water to survive.
3. BUY
If people avoided … packaged goods there would be less litter thrown by them.
4. USE
I’m not … to having breakfast alone.
5. ECOLOGY
If we want to protect our environment, lots of things should be changed in our life, but first of all we should improve … education.

3. Put the verbs in brackets into the gaps. Form a Conditional sentence - type II and III.
1) If they (to have) enough money, they (to buy) a new car.
2) If you (to do) a paper round, you (to earn) a little extra money.
3) If Michael (to get) more pocket money, he (to ask)Doris out for dinner.
4) If we (to hurry), we (to catch) the bus.
5) If it (to rain), Nina (to take) an umbrella with her.
) I … (visit) Sarah yesterday if I … (know) that she was ill.
7) If you … (go) with me to Paris last month, you … (see) the Eifel Tower too.
8) We … (not get wet) if you … (take) an umbrella.
9) If Mum … (not open) the windows, our room … (not be) full of mosquitoes.
10) Nick … (not be) so tired this morning if he … (go to bed) early last night.

4. Complete each sentence with one of the words (phrases) below:
1. Environment / environmental
1) They have many ... problems in their city.
2) To protect the .... is our main task nowadays.
2. Protection / protective / protect
1) We must .... our Earth.
2) He wears .... clothing as he is a fireman.
3) .... of nature is very importang.
3. Pollute / polluted / pollution
1) The air is ..... by gases in the city.
2) People .... the ground throwing away litter.
3) What do you know about the .... of rivers and seas?