题目

Frogs, toads and salamanders usually make us think of green, slimy little monsters. These monsters actually belong to a very special class of animals called the amphibians. Amphibians can live both on land and in the water. They commonly inhabit ponds, rivers, marshes and other wetlands. Today, amphibians are becoming extinct very quickly from all the six continents where they are found. More than 25 countries are reporting sharp drops in the populations of amphibians. In some places, embryos (胚胎) are dying; in others, adults are missing. Why are they dying off? Scientists blame hu根据音标写出单词和中文意思。1.[Im'p?:tnt] ___________, ____________2.['ju:?u?li] ___________, ____________3.[?'merIk?n] ___________, ____________4.[θI?k] ___________, ____________5.['h?ndr?d] ___________, ____________