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作者词汇表达恰当，同时能较灵活地使用学术词汇；可适当增加从句和复杂句使用；文章层次较为清晰。
Nowadays we may find ourselves surrounded by a sea of disposable plastic bags. And recently the problems of using disposable plastic bags have been brought into people’s focus. First of all, the use of disposable plastic bags causes irreversible harm to our environment. As these bags are not biodegradable, they are blocking the drainage system and causing water pollution. What’s more, customers using disposable plastic bags may think that they are of great convenience. But what they don’t quite realize is that there will be remarkable negative impact on our health. And sometimes careless disposal of these bags may even poison some innocent animals. In view of the severity of this issue, effective measures have been taken in our country. There has been a strict limit on the using of disposable plastic bags in supermarkets, which not only enhances people’s awareness on environmental protection but also cuts down the cost of the running of supermarkets. Owing to the convenience of it,disposal bags had been used widespread which cause some problems.Now I will talk about the problems that are caused by disposal bags. First,disposal bags are abandoned casually by people who buy something needed to be put into disposal bags.However,they can do a lot of harm to the environment,especially to the farmlands.There are a large number of farmlands polluted heavily by the disposal bags so the seeds couldn't be planted on them.Even worse,disposal bags are made of oil and so on.To make them need consume a large amount of oil every year and then turn up the phenomena of being lack in oil.And the lack of recycle of disposal bags aggravates that. So,Limiting the use of disposal bags makes the environment become more beautiful and can save our most valuable resources.
