1. Introduction
Hook: Do you think what the major sources of water pollution in the world are?
General Information: Water is the source of life, and is the most important resources for human survival and development. However, according to the research, approximately 80% of the world population lives dangerous area where the water security is facing a high risk. The most serious threat affects 3.4 billion people who live in developing countries where the level of investment in infrastructure is lower than developed countries.
Thesis Statement: The main sources of water pollution are emissions of industrial wastewater, sewage discharge, and the agriculture wastewater emissions.
2. Effect: Water pollution.
A. Explain the meaning of water pollution.
B. Describe the current situation of water pollution.
C. Analysis the influences for people.
3. Cause 1.
Topic Sentence: Industrial wastewater discharge caused ecological damage.
A. The reason why Industrial wastewater discharge caused ecological damage.
B. Giving a specific example.
C. Solution.
4. Cause 2.
Topic Sentence: Sewage discharge consumed dissolved oxygen in the water, threating the survival of fish.
A. The reason.
B. Giving a specific example.
C. Solution.
5. Cause 3.
Topic Sentence: Agriculture sewage discharge caused a lot of lake water quality eutrophication, resulting in deterioration of water quality.
A. The reasons.
B. A specific example.
C. Solution.
6. Conclusion: Water pollution not only affects on the environment and production, but also impact human’s healthy.
7. Suggestion:
In order to sustainable development of the world, people should protect water.
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