学生啦：课时作业（四）Unit 2 Section I Welcome to the unitReadingWhat is the greatest threat to mankind?Maybe different people come up with differentanswers.However,there is no denying the fact that the only threat to humankind,apart fromhumankind itself,is,without any doubt,the nature.Natural disasters are the result of naturalenvironmental processes that have a damaging effect on people.Natural disasters can come inmany forms:such as geological events like earthquakes,tsunamis or mud-rock flows,climaticevents 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 exactlywhen they will happen.Although great progress has been made in designing and developingforecasting models for some natural disasters,complete certainty is still impossible.Even to bepessimistic,there is a possibility that human beings will never achieve accurate prediction of thehappening of all natural disasters.What's more,even though we are able to predict these disasters from nature,preventing themis equally impossible.So we only have two ways to both prevent injuries or deaths and reduceeconomic losses to the least.These two methods are to prepare before a natural disaster comes tohit,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 nationalgovemments and international organizations.In the United States,the Federal EmergencyManagement Agency (FEMA)is responsible for the "preparedness,response and recoveryplanning"of both man-made and natural disasters.Most natural disasters cannot be prevented,and both emergency preparation and gooddisaster management are the best ways to deal with them.Although natural events may appear toserve no purpose but simply to punish and destroy,natural disasters,a perfect symbol of the greatpower of the nature,are display of our planet's evolution and its state of change.1.According to the passage,both humankind and natureA.can be managed orderlyB.can threaten human beingsC.are hard to controlD.have a large family2.Which can't be regarded as a similarity between tornadoes and earthquakes?A.They can not be prevented.B.They are both geological events.C.They are both the result of natural environmental processes.D.They cause damage to people.3.Why do natural disasters cause so much damage?A.It is very difficult to predict when exactly they will happen.B.Our forecasting equipment is too old for many natural disasters.C.We don't do enough preparation before natural disasters strike.