雅思写作 Task 2 双问题类新题

We have been living in the nuclear age now for over half a century. Since the first atomic bombs were developed, nuclear technology has provided governments with the ability to totally destroy the planet. Yet the technology has been put to positive use as an energy source and in certain areas of medicine. To what extent is nuclear technology a danger to life on Earth? What are the benefits and risks associated with its use?

Some people feel that in order to improve the quality of our education we should encourage high school students to evaluate and criticise their teachers. Others feel that it will cause the loss of respect and discipline in the classroom. Which one do you support? What's your viewpoint?