根据短文内容，判断句子正误，正确的写“T”，错误的写“F”。
Some factories will do harm to our human beings’ life and the environment. They will pollute the air, and some will pollute the water. That is why we cannot see any fish in many rivers in the city. Some rivers have black colour and pungent (刺鼻的) smell. And usually the air around rivers is not so clean. What’s more, the polluted water will make people and animals sick. So the environment is very important to us. We should try our best to protect it.
【小题1】Some factories will do harm to us. （______）
【小题2】Factories can only pollute the air. They cannot pollute the water. （______）
【小题3】We can see many fish in rivers in big cities now. （______）
【小题4】The polluted water will make people sick. （______）
【小题5】Protecting the environment is very important to us. （______）
