Canyousurviveanunannouncedstorm？Althoughthereisexpertbroadcastingandweareequippedwithcellphones，there'restillsomeinstanceswhentheviolentweathertakesusbysurprise．WhilemostAtlantichurricanesformoffthecoastofAfr

　　Can you survive an unannounced storm？Although there is expert broadcasting and we are equipped with cell phones，there're still some instances when the violent weather takes us by surprise．

　　While most Atlantic hurricanes form off the coast of Africa giving plenty of early warning，sudden Caribbean and Gulf of Mexico hurricanes form and move rapidly in less than a day's time，endangering everyone and everything in their path．

　　There've been oil workers trapped off the shore when sudden storms appeared．Field archeologists have been stuck in coastal areas without storm warning．It wasn't but a few decades ago that a Texas National Guard group was trapped on the beach by rain-forced flooding and had to ride out a major hurricane during a training exercise．There've been a few instances when travelers were trapped on an island or in a coastal area and unable to escape in time．

　　Escaping from the storm-threatened areas is generally a choice for most of us---but not for all．Each year thousands of islanders across the Caribbean face the danger of hurricanes without so much as a public shelter to hide in．Most ride out the storm in their homes．

　　But there're a few things you can do to prepare yourself for some unexpected emergencies．Being prepared for the unexpected may be your best and only defense．If you're headed outdoors for a few days or weeks，you should always carry a flashlight（手电筒） with extra batteries，a GPS device （装置），and a basic medical box．If you're traveling in your car，remember you may suffer from high winds．You'd better not stay inside to avoid being blown away along with your car．Keeping your head and your courage up is essential to survival in any type of danger．Let common sense guide you and always be prepared for the worst．

　　63．According to the text，most Atlantic hurricanes___．

　　A．form in the Caribbean Sea B．come from Gulf of Mexico

　　C．develop off the coast of Africa D．are from th