阅读理解。 Many animals do strange things before an earthquake (地震). This news ma be important. Earthquakes can kill people and knock down houses. The animals may help to save lives. Some animals make a lot of noise before an earthquake. Dogs that are usually quiet have started to howl (嚎叫). Horses on farms have run around in circles. Mice have left their holes and run away. Cows have given less milk. In a town in Italy,cats raced down the street in a group. That happened only a few hours before an earthquake. In San Francisco , a man kept tiny pet frogs. One Sunday , the frogs jumped around more than ever. They made loud noises,like bigger frogs. That night,an earthquake struck the city. People want to know when an earthquake is coming. Then they can. get away safely. Right now there is no sure to know ahead of time. Maybe the best way is to watch the animals. 1. 判断正误（'T' 表示正确，'F'表示错误）。 (     )   This story is mostly about how animals act before an earthquake. 2. Before earthquake, the frogs jumped around ______ ever and made loud noises. 3. What will horses do if an earthquake is coming? ____________________________________________ 4. How many kinds of animals do strange things before the earthquake? ____________________________________________ 5. 将文中画线句子译成汉语。 ____________________________________________