passage. From the seeds themselves to the machinery, fertilizers and pesticides - The Green Revolution regimen depend heavily on technology. One alternative, however, depends much (1). on technology organic farming. Many organic farmers use machinery, but not chemical fertilizers or pesticides. (2)_ chemical soil enrichers, they use animal manure and plant parts not used as food - natural, organic fertilizers that are clearly a renewable (3) ____. Organic farmers also use alternatives for pesticides, for example, they may rely on natural predators of certain insect pests. (4) the need arises, they can buy the eggs and larvae of these natural predators and introduce them into their crop fields. They use other techniques to control pests as well, like planting certain crops together because one crop repels the other's pests. Organic farmers do not need a lot of land, in fact organic farming is perfectly (5) to small farms and is relatively inexpensive. Finally, many organic farmers' average yields compare favorably with other farmers' yields. D. worse B. less C. better 1. A. more C. In favor of D. Instead of 2. A. In spite of B. On account of B. source 3. A. resource C. matter D. substance B. If C. Because 4. A. Then D. Thought D. suited 5. A. suitable C. likely B. open GREEN ENERGY Fossil fuels are used to generate the majority of the world's energy, and they come in different forms. For example, coal may be burned in a power (1) to generate electricity, but gasoline is burned in a car's engine to make it run. Neither of these two sources is considered green energy because they produce a lot of pollution when they are burned. In addition, they come from a source that is inevitably going to (2) Green energy can be defined as any energy source that is to some degree non-polluting. When it is called (3). , this means that a person can replace the same amount of energy that was consumed by that person (4) that person's lifetime. Since it took millions and millions of years to create the fossil fuels that we now burn, we know that they cannot be replaced by us. Wind power and solar power, (5) harnessed properly, are two excellent sources of green energy. Once the necessary parts such as wind turbines to generate wind power and solar panels to create solar power have been produced, only the pollution from the production is left. D. plant C. factory 1. A. point B. outlet B. run out 2. A. run out of C. burn out D. cut out 3. A. durable C. harmful B. sustainable D. effective B. about C. within 4. A. along D. during B. when C. which D. what 5. A. where
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