What Impels the Dna Through the Gel? Blank 1. Fill in the Blank, Read Surrounding Text.
Acrid rains autumn when poisonous gases from ability stations and vehicle exhausts mix with oxygen and moisture in the air. These gases go part of the water wheel and may be carried long way by the air current before they fall every bit acid rain, or snow. Acrid rains poisonous substance or kill wildlife in lakes, rivers, and forests and harm the surrounding plant life. The problem could be controlled by reducing vehicle emissions and limiting the gases released from power stations. A natural layer of ozone gas high in the temper provides protection confronting the Sun�s harmful rays. However, certain pollutant gases, including CFC�south (chlorofluorocarbons) are now destroying the ozone. Since 1979, �holes� take appeared in the ozone layer � first over the Antarctic, then over the Arctic. Damaging ultraviolet rays from the Sun penetrate these �holes�, slowing the growth of plants. Ex. 10. Answer the following questions. one. What are the consequences of human activity? two. What is global warming? What is it caused by? 3. What makes ocean levels rise? What are the consequences of this phenomenon? 4. What damage do acrid rains crusade? How could the problem exist controlled? five. What does a natural layer of ozone gas provide for living beings? 6. Where did �ozone holes� appear? Ex. 11. Interpret the following words and word combinations into Russian. Atmosphere; global warming; holes in the ozone layer; to provide protection; a consequence of human activities; living things; the h2o cycle; oceans; harmful rays; the growth of plants; dramatic impact; vehicle emissions; wildlife; oxygen; power stations; the environs; habitat destruction; the natural world. Ex. 12. Lucifer the words with their definitions. 1) acrid rain a) the mixture of gases that surrounds the Earth 2) atmosphere b) the natural atmospheric condition, such as air, h2o, and land, in which people, animals, and plants live three) climate c) the natural abode of a found or animal 4) surround d) a gas present in the air that is a simple substance, is without colour, gustation or olfactory property, and is necessary for all forms of life on Earth 5) glacier e) the boilerplate weather condition atmospheric condition at a particular place over a menstruation of years half dozen) habitat f) water, or other liquids, in small quantities or in the form of steam or mist 7) wet m) pelting containing harmful quantities of acid as a event of industrial pollution 8) oxygen h) a mass of ice which moves very slowly down a mount valley Ex. plete the sentences. one. Over millions of years, many species take adapted to natural changes, such as ______. ii. Global warming is caused by the buildup of gases and ______. 3. Acrid rains poisonous substance or kill wild animals in lakes, rivers, and forests and ______. four. A natural layer of ozone gas loftier in the atmosphere provides protection against ______. five. Damaging ultraviolet rays from the Dominicus penetrate these �holes�, ______. Ex. xiv. Translate the following sentences from Russian into English. 1. �� �������� ��� ������ ����� �������� �������������� � ������������ ���������� �������. ii. ������ ������� ������� ��� ����� ������� �������������� � �������� � ���������� ����� ������� �������, ������������ ���������. 3. ����������� ����� � ������ ����� ���������� ����������. 4. �� ���� ���� ��� ������� ����� �����������, ������� ���� � ������� ����� ����������, � ����, ����������� � �������� � �������� ������, ������ �����. 5. ����������� ���� ���������� ������ ���������� ����������� ����, ��� ����� �������� ������ ������������ ������� � ����� �������� �� ����� � ���� ���������� ����� ��� �����. half dozen. � 1979 ���� � �������� ���� ����� ���������� ������, ������� ��������� ��� �����������, � ����� ��� ��������. Ex.xv. Make a summary of the text B. The plan for retelling the text will help you lot. ane. The title of the text. 2. The primary idea of the text. 3. The contents of the text. 4. Your opinion of the text. Ex. 16. Interpret the text without the dictionary. Text C Proceed OUR Environs Clean Nearly ii hundred years ago man lived in greater harmony with his surround because manufacture was not much developed. Today the situation is quite unlike. People all over the world are worried about what is happening to the environment, considering of mod manufacture and the demand for more and more energy. Newspapers and magazines write about water pollution, air pollution and country pollution. Why is there then much discussion about pollution? After all, people have been polluting the earth effectually them for thousands and thousands of years. Just in the past, at that place were not many people and lots of room in the world so they could motility to another identify when their settlements became dirty. At present, however, many parts of the world are crowded, people alive in big cities and much of our waste, especially waste from factories, electric power stations, the chemic industry and heavy industry are very unsafe. Fish dies in the lakes, rivers and seas, wood copse die as well. Much of this dangerous waste goes into the air and is carried by winds for not bad distances. The World is our home. We must take care of information technology, for ourselves and for the next generations. This means keeping our environment clean. The importance of this task is pointed out by ecologists, the scientists who study the relation between living things and their environment. However each of usa must do everything possible to keep the country, air and water clean. UNIT ii Ex. ane. Await through the following words before reading the text. Rival � ���������, �������� survival � ��������� habitat � ������������ ����� frail balance � ������� ������ to dig up � ����������� extinction � ������������, ��������� destruction � ���������� to plough up � ����������� (�����) soil erosion � ������ ����� flood � �����, ���������� drought � ������ dam � �����, �������, ������� irrigation � �������� silt ���, ������, ������ to enrich � ��������� fertilizer � ��������� marsh � ������, ���� peat bog � �������� ������ spawning ground � ����� ��� �����������, ������� lobster � ���, ���� shrimp � �������� Ex. 2. Read the text and exercise the exercises that follow it. Text A HABITATS IN DANGER The World is a domicile to millions of different kinds of living things, which are linked in many ways. Together, they make upwardly the complex world of nature. Same are rivals or enemies while others depend on each other for survival. Wild plants and animals live in a particular prepare of environs, called their habitat. Nowadays people are in a bustle to alter habitats to adjust their own needs - to create farmlands or build cities, for example. The mode people live threatens the frail balance betwixt living things and their habitats. People create pollution, which travels through the air and h2o from 1 habitat to another. They too destroy wildlife habitats past excavation the ground up for mining, or by edifice roads through them. A quarter of all the plants in the world are known to be in danger or threatened with extinction. The most serious threat of plants is the destruction of their habitat. This includes cutting downwards rain forests, draining wetlands, and plowing upward grasslands. As population increases, people demand more space. The trees are cut downwards for timber or make way for farms and mines, but forest clearance causes many long-term problems such as soil erosion, floods, and droughts. An area of a football field is cut downward every second. If this continues, the balance of the rainforests could disappear within twoscore years. Many large-scale dams have been congenital around the world to generate electricity and command irrigation of crops. Just dams drown valleys and prevent silt in the water from flooding over the land and enriching the soil. Crops have to exist fed with expensive fertilizers instead of free, natural silt. Dams and irrigation canals too reduce the amount of silt that reaches the river�due south delta. Silt ordinarily builds up in the delta and helps protect the shoreline. Marshes, peat bogs, and other wetlands are important habitats. Littoral wetlands are spawning grounds for fish, lobsters, and shrimps. More than than one-half of European wetlands accept been tuckered for agronomics, flood control or tourism. Pollution from farms and towns besides damages wetlands. Chat laws, pollution control, and less intensive farming would help them recover. Ex. 3. Answer the following questions. ane. What is a habitat? 2. Why does the way people live threaten the residual betwixt living things and their habitats? 3. What is the most serious threat to plants? 4. What long-term problems does the forest clearance cause? 5. What are dams built for? six. What is the side effect of a dam built in an area? seven. Why are marshes and peat bogs considered important habitats? 8. What measures could assistance recover wetlands? Ex. four. Find the English language equivalents for: �������� �����; �����������; ��������� ������; ������������ �������������; �������������� ������������; ���������� �� ����� ������������; ����������� ����; ����; ��������� �����; �����; ����� ��������; �������� �����������; �������� ���������� ������; ��������� ���������� ���; ��������; �������� ���� �� �����; ���������� �����; ������������� �����; ������ ����. Ex. five. Friction match the words with their definitions. ane) drought a) a not bad overflow of water 2) extinction b) animals and plants which live and grow in natural conditions 3) fertilizer c) a deep hole or organization of holes nether the ground from which coal, gold, can, or other mineral substances are dug 4) overflowing d) the state of being or becoming extinct 5) marsh due east) a tropical forest with tall copse growing together and with a loftier rainfall 6) mine f) a natural or chemic substance that is put on the land to brand crops grow meliorate 7) rainforest g) a long period of dry weather when there is not enough h2o 8) wild fauna h) low land that is soft and wet Ex. 6. Fill up in the blanks with the suitable words from the post-obit list: animals, species, pollute, surround, waste, protection, pollution, substance, ecological, danger.
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