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Directions: For this part, you are allowed 30 minutes to write a summary of the following passage in no more than 80 words; you can either use the sentences from the passage or summarize in your own words. Your summary should contain the main idea of the original passage. (请写出下面文章的英文摘要,可以引用文章句子或自己总结,不超过80个单词)Weeds, the fast-growing plants that cannot be eaten and do not bring flowers, are a common problem for gardeners. Some use chemicals to kill weeds. Others pull them up by hand or with heavy machinery. Luckily, there are other ways to limit their growth.At first, for starters, there are mulches which can bury weeds. Mulches are made from organic material, such as leaves, grass cuttings, and small pieces of wood, or inorganic material like plastic. They are spread over the ground in a garden to control weeds. Organic mulches break down over time so you must add more to your garden often. That is not a bad thing, because their decomposition creates nutrients for plants and humus to keep soils wet and full of fresh air.Plastic mulch is another way to stop weeds. Common black plastic is easy to lay down. It also effectively blocks weeds and helps soil warm faster in the spring. Recent experiments with other colored plastic have shown effects on both bugs and plant growth. A reflective plastic mulch, for example, keeps some plant-eating insects away. But a major problem with plastic is that it breaks apart over time, so eventually it needs to be thrown away. It also adds nothing to the soil as far as nutrients or humus. And plastic also can block air from reaching the soil.One kind of mulch that combines some of the qualities of both plastic and organic material is paper. Paper mulch is easy to lay down and eventually decomposes. However, paper adds little to the soil in terms of humus or nutrients.Then, for larger gardens where the weeds are mainly grasses, a somewhat unusual way to control them is using the birds known as geese. Young geese will eat their weight in weeds every day. A small group of geese can clear weeds in half a hectare of land and keep each other company. All you need to provide is water, protection from the sun, and some additional feed. You also need barriers to keep the geese in and other animals out. One warning, though, do not plant corn or they will eat that, too.Finally, in addition to direct attacks on weeds, how you plant your garden can indirectly influence weed growth. For example, close spacing of plants in the garden blocks sunlight from reaching the ground and can limit weed growth. And using a watering method known as drip irrigation will direct small amounts of water to the roots of your plants instead of the weeds. Whether or not you dig up your soil also influences weed growth. Lying in soil are millions of weed seeds just waiting to be awakened by light and air.Using any or all of the methods will not permanently stop weed growth. Instead, your goal is simply to limit their growth in the garden.

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Business and government leaders also consider the inflation rate to be an important indicator. Inflation is a period of increased (1) that causes rapid rises in prices. (2) your money buys fewer goods so that you get (3) for the same amount of money as before, inflation is the problem. There is a general rise (4) the price of goods and services. Your money buys less. Sometimes people describe inflation as a (n) (5) when “a dollar is not worth a dollar anymore.”Inflation is a problem for all consumers. People who live on a fixed income are hurt the (6). Retired people, for instance, cannot (7) on an increase in income as prices rise. Elderly people who do not work face serious problems in stretching their incomes to (8) their needs in time of inflation. Retirement income (9) any fixed income usually does not rise as fast as prices. Many retired people must cut their spending to (10) rising prices. In many cases they must stop (11) some necessary items, such as food and clothing.Even (12) working people whose incomes are going up, inflation can be a problem. The (13) of living goes up, too. People who work must have even more money to keep up their standard of living. Just burying the things they need costs more. When incomes do not keep (14) with rising prices, the standard of living goes down. People may be earning the same amount of money, but they are not living (15) because they are not able to buy as many goods and services.Government units gather information about prices in our economy and publish it as price indexes (16) the rate of change can be determined. A price index measures changes in prices using the price for a (17) year as the base. The base price is set (18) 100, and the other prices are reported as a (19) of the base price. A price index makes (20) possible to compare current prices of typical consumer goods, for example, with prices of the same goods in previous years.

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