交大外院：2009年12月英语四级作文范文

3. 限制使用一次性塑料袋的意义

for many years we have been using disposal plastic bags when we are shopping on the market, and most often these bags are offered by the shops for free. this, undoubtedly, has brought us great convenience in our daily life.

however, its disadvantages are also very apparent, and i’ll just venture to explore two aspects. for one thing, the plastic bags are mostly indposable in the natural state so that with the increasing use of these bags, it will not only seriously bring about the so-called “white pollution” to the environment, it can also cost us a lot to have them dposepletely so as to minimize their damage to the environment. for another, the production of plastic bags are often not strictly supervised, so a large proportion of the bags don’t meet the requirements for healthy products, which means the more we use them, the more likely we are to suffer in health.

the negative effects of the plastic bags are far serious than what i’ve mentioned above, so it’s high time the government issued strict laws and measures to stop using the bags. by so doing, we can save a lot of money from producing these bags as well as return a cleaner earth to ourselves and the later generations.

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