Put the verbs in brackets into the correct tense.
1)If you go to the clean-up day, I (come) with. 2)Unless we help endangered animals, they (become) extinct.3) If you recycled your paper, you(help) the envitonment.4) If acid rain falls in a lake, it (pollute) the water. 5) If we chop down the trees, animals (lose) their homes.6) If I were you, I (try) to recycle more glass. 7)If the temperature rises above zero degrees, ice (start) to melt.

Conditional 0:
1If air expands, it becomes lighter.-Когда воздух увеличивается в объёме, он становится легче.
2If you practise your English every day,you can improve it quickly.-Если ты будешь практиковаться в английском каждый день,ты сможешь быстро его улучшить.
3if you drop an apple, it falls.-Если вы уроните яблоко, оно упадёт.
4If you get into the water,you get wet.-Если вы войдёте в воду, вы вымокнете.
5If the temperature falls below zero,water freezes.-Если температура опустится  ниже нуля, вода замёрзнет.
Conditional 1:
1If you finish on time,we'll go to the cinema.-Если ты закончишь вовремя, мы пойдём в кино.
2If the weather is fine,we'll go for a walk.-Если погода будет хорошей, мы поидём гулять.
3If I go to Moscow,I'll see the Kremlin-Если я поеду в Москву,я увижу Кремль.
 4If it rains,we'll take a taxi.-Если будет дождь, мы возьмём такси.
5 If you come , I'll be very glad.-Если вы придёте, я буду очень рад.
Conditional 2:
1If I were very rich, I would buy what I want.-Если бы я был очень богатым, я бы покупал всё, что захочу.
2If people had wings, they could fly.-Если бы у людей были крылья, они могли бы летать.
3If you studied, you would pass the exam.-Если бы ты занимался, ты бы сдал экзамен.
4If I were president, I would reduce taxes. -Если бы я был президентом, я бы снизил налоги.
5If I could travel back in time, I would visit the ancient world.-Если бы я мог путешествовать во времени, я бы посетил древний мир.

The republic is situated on the Crimea peninsula. It is between the Black Sea in the west and south, and the Sea of Azov — in the east. In the east the Crimea is separated from Russia by the Kerch Strait.

The total area of the republic is 26 100 km2, population is 2 137 700. It is divided into 15 regions and 15 cities.

Symferopol is the administrative centre of the Crimea.

The Crimea consists of two very different parts — treeless steppe of the Crimean Lowland in the northern and central parts, and the Crimean Mountains in the south.

The Crimean steppe, with its continental climate and steppe soils, occupies four-fifths of the territory.

The Crimean Mountains consist of a narrow range of foothills and a low mountain chain covered with forests and high pastures. Below the mountains in the south there is a narrow coastal lowland — the Crimeansouthern shore — with a Mediterranian climate and vegetation.

The rivers are short and shallow. On the northern slopes of the Crimean Mountains we find the Chorna, the Belbek, the Kacha, the Alma, the Salhyr and other rivers. There are also salt lakes there, such as the Sasyk, the Aktash and others.

It is rich in natural resources, such as iron ore, natural gas, building materials, and salt from the lakes. Russians constitute 67.2 percent of the population, Ukrainians — 26.5 percent and there are 300 000 Tatars.

Food production is the Crimea’s main industry. Food industry produces canned goods, fish and wines. Agriculture mostly specializes in plant-growing, vine-growing and animal husbandry. It is followed by iron-ore mining, metallurgy and machine-building.

The main sea-ports are Kerch, Teodosia, Yalta, Sevastopol, and Yevpatoria. The Crimea is also the main resort and tourist area of Ukraine.

The artist I. Ayvazovsky and the polar explorer I. Papanin were born in the Crimea.

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