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We experience different forms of the sun’s energy every day. The sun is the major source of energy for our planet. It causes the evaporation(蒸发)of water from the oceans and lakes. Sunlight also provides the energy used by green plants to make their own food. Much of the energy that comes from the sun never reaches the earth’s surface. It is either reflected or absorbed by the gases in the upper atmosphere. Of the energy that reaches the lower atmosphere, 30% is reflected by clouds or the earth’s surface. The remaining 70% warms the surface of the planet, causes water to evaporate, and provides energy for the water cycle and weather. Only a tiny part, approximately 0.023%, is actually used by green plants to produce food. Many gases found in the atmosphere actually reflect heat energy escaping from the earth’s surface back to A. all living things on the earth depend on the sun for their food B. a forest looks dark in winter because it absorbs solar energy C. only 0.023 of the energy from the sun is made use of on the earth D. greenhouse gases allow heat energy to escape from the earth’s surface 查看答案 更多"{{B}}C{{/B}} We experie"的相关试题: [单项选择]{{B}}C{{/B}} We experience different forms of the sun’s energy every day. The sun is the major source of energy for our planet. It causes the evaporation(蒸发)of water from the oceans and lakes. Sunlight also provides the energy used by green plants to make their own food. Much of the energy that comes from the sun never reaches the earth’s surface. It is either reflected or absorbed by the gases in the upper atmosphere. Of the energy that reaches the lower atmosphere, 30% is reflected by clouds or the earth’s surface. The remaining 70% warms the surface of the planet, causes water to evaporate, and provides energy for the water cycle and weather. Only a tiny part, approximately 0.023%, is actually used by green plants to produce food. Many gases found in the atmosphere actually reflect heat energy escaping from the earth’s surface back to A. the atmosphere surrounding the earth B. water from oceans and lakes C. energy from the sun D. greenhouse gases in the sky 查看答案 [单项选择]We experience different forms of the sun’s energy every day. The sun is the major source of energy for our planet. It causes the evaporation(蒸发)of water from the oceans and lakes. Sunlight also provides the energy used by green plants to make their own food. Much of the energy that comes from the sun never reaches the earth’s surface. It is either reflected or absorbed by the gases in the upper atmosphere. Of the energy that reaches the lower atmosphere, 30% is reflected by clouds or the earth’s surface. The remaining 70% warms the surface of the planet, causes water to evaporate, and provides energy for the water cycle and weather. Only a tiny part, approximately 0.023%, is actually used by green plants to produce food. Many gases found in the atmosphere actually reflect heat energy escaping from the earth’s surface back to the earth. These gases act like the glass of a greenhouse in that they allow energy from the sun to enter but prevent energy form leaving. They are there A. the atmosphere surrounding the earth B. water from oceans and lakes C. energy from the sun D. greenhouse gases in the sky 查看答案 [单项选择] We experience different forms of the Sun’s energy every day. We can see its light and feel its warmth. The Sun is the major source of evaporation of water from the oceans and lakes. Sunlight also provides the energy used by green plants to make their own food. These green plants then provide food for all organisms on the Earth. Much of the energy that comes from the Sun never reaches the Earth’s surface. It is either reflected or absorbed by the gases in the upper atmosphere. Of the energy that reaches the lower atmosphere, 30% is reflected by clouds or the Earth’s surface. The remaining 70% warms the surface of the planet, causes water to evaporate, and provides energy for the water cycle and weather. Only a tiny part, approximately 0.023%, is actually used by green plants to produce food. Many gases found in the atmosphere actually reflect heat energy escaping from the Earth’s surface back to the Earth. These gases act like the glass of a A. The moon. B. The sun. C. The star. D. The earth. 查看答案 [单项选择]A. We went swimming. B. He went swimming. C. We didn’t go swimming. D. He didn’t go swimming. 查看答案 [单项选择]We live in a materialist society. We are trained from our earliest years to be (31) . Our possessions, "mine" and "yours ", are clearly (32) from early childhood. When we grow older enough to earn a living, it does not surprise us to discover that success is measured (33) the money we earn. We spend the whole of our lives keeping up with our neighbors, the Joneses. If we buy a new television set, Jones is (34) to buy a bigger and better one. It is not only in affluent society that people are (35) with the idea of making more money. Consumer goods are (36) everywhere and modern industry deliberately (37) create new markets. Gone (38) the days when industrial goods are made to (39) forever. The wheels of industry must be kept turning. Unfashionable goods are made to be (40) . Cars get tinnier and tinnier. 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