Unit 2 课时检测(3) Grammar and usage（word练习）-【新课程学案】新教材2023-2024学年高中英语必修第三册（译林版2020）

UNIT 2 课时检测(三) Grammar and usage Ⅰ.阅读理解 What is the greatest threat to mankind? Maybe different people come up with different answers.However, there is no denying the fact that the only threat to humankind, apart from humankind itself, is, without any doubt, the nature.Natural disasters are the result of natural environmental processes that have a damaging effect on people.Natural disasters can come in many forms: such as geological events like earthquakes, tsunamis or mud－rock flows, climatic events like storms, hurricanes or tornadoes and fire events like forest fires and wildfires. The damage done by natural disasters is mainly as a result of our inability to predict exactly when they will happen.Although great progress has been made in designing and developing forecasting models for some natural disasters, complete certainty is still impossible.Even to be pessimistic, there is a possibility that human beings will never achieve accurate prediction of the happening of all natural disasters. What's more, even though we were able to predict these disasters from nature, preventing them is equally impossible.So we only have two ways to both prevent injuries or deaths and reduce economic losses to the least.These two methods are to prepare before a natural disaster comes to hit, and to manage the necessary resources and public services after a natural disaster strikes. These two things have always been at the leading position of the projects of both national governments and international organizations.In the United States, the Federal Emergency Management Agency (FEMA) is responsible for the “preparedness, response and recovery planning” of both man－made and natural disasters. Most natural disasters cannot be prevented, and both emergency preparation and good disaster management are the best ways to deal with them.Although natural events may appear to serve no purpose but simply to punish and destroy, natural disasters, a perfect symbol of the great power of the natu