增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用(\) 划掉。
修改：在错的词下画一横线，并在该词下面写出修改后的词。
注意：1. 每处错误及其修改均仅限一词;
2. 只允许修改10处，多者(从第 11 处起)不计分。
World Wetlands Day, celebrating annually on 2 February, aims to increase aware and understanding of the importance of wetlands to humans and the globe. It also spreads information about what valuable wetlands are and encourages individuals and governments to take actions to prevent their loss. The day was first organized by a group of environmentalist who wanted to celebrate and protect wetlands.
Wetlands are ecosystems which water is the primary factor controlling the environment and the associated plant and animal life. Wetlands are disappearing at a rate three times fast than forests, making them the Earth’s most threatened ecosystems. Human activities, such as agriculture development, urbanization, pollution, overfishing and climate change, have contributed the loss of wetlands.
Actions needed to save the world’s wetlands from disappearing and restore those we have already lost. That’s because of wetlands provide critical habitats for a vast variety of wildlife, offering valuable opportunities for outdoor recreation, and play a crucial role in flood control.
