Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks. The search (41) ______ alternative sources of energy has (42) ______ in various directions. Many communities are burning garbage and other biological waste products to produce electricity. Changing waste products into gases or oil is also an efficient way to dispose of wastes. Experimental work (43) ______ to make (44) ______ fuels from coal, or coal tars. But (45) ______ date, that process (46)_ expensive. Other experiments are (47) ______ to harness power with giant windmills. Geothermal power, heat from the earth, is also being tested. Some experts are trying to revive hydroelectric power which derived from streams and rivers. Fifty years ago. hydroelectric power provided one third of the electricity (48) ______ in the United States, but today it supplies only 4 percent. The oceans are another potential source of energy. Scientists are studying ways to change the energy of ocean currents, tides, and waves (49) ______ electricity. Experiments are also underway to make (50) ______ of temperature differences in ocean water to produce energy. Trả lời cho các câu 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 dưới đây:
Câu hỏi
Nhận biếtRead the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks.
The search (41) ______ alternative sources of energy has (42) ______ in various directions. Many communities are burning garbage and other biological waste products to produce electricity. Changing waste products into gases or oil is also an efficient way to dispose of wastes.
Experimental work (43) ______ to make (44) ______ fuels from coal, or coal tars. But (45) ______ date, that process (46)_ expensive. Other experiments are (47) ______ to harness power with giant windmills. Geothermal power, heat from the earth, is also being tested.
Some experts are trying to revive hydroelectric power which derived from streams and rivers. Fifty years ago. hydroelectric power provided one third of the electricity (48) ______ in the United States, but today it supplies only 4 percent. The oceans are another potential source of energy. Scientists are studying ways to change the energy of ocean currents, tides, and waves (49) ______ electricity. Experiments are also underway to make (50) ______ of temperature differences in ocean water to produce energy.
Trả lời cho các câu 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 dưới đây:
Đáp án đúng: CĐáp án đúng là: AĐáp án đúng là: CĐáp án đúng là: BĐáp án đúng là: CĐáp án đúng là: BĐáp án đúng là: CĐáp án đúng là: CĐáp án đúng là: DĐáp án đúng là: D
Lời giải của Luyện Tập 365
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