求今年四级和六级英语标准答案

四级A 1. 一次性塑料袋给人们生活带来便利。 广为使用。

2. 由此带来的问题， 举例子。。。

3. 限制使用塑料袋的意义，理论与实际相结合。

范文：

In modern world, Disposable plastic bags were once widely used in China. People used to take it for shopping and shopping assistants often provided free plastic bags for our convenience. For a while, life without them seemed unimaginable for most of us.

However, disposable plastic bags do bring severe damage to our environment and lot of harms to life. First and foremost, they are abandoned everywhere. It cannot be absorbed which will have great influence for the environment. Finally the pollution brought by plastic threat to our species life.

To sum up, it is meaningful to limit the use of disposable plastic. It's significant that our government has banned the use of disposable plastic bags officially, and people will be charged for the use of such bags. This action is reducing the consumption of bags to a great extent.