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Tigers could face extinction within ten years.十年之内老虎可能面临灭绝。Many species of birds are battling extinction.许多种类的鸟都在为摆脱灭绝的命运而苦苦挣扎。Many species are now threatened with extinction.许多物种目前有灭绝之虞。Some species have been wiped out through ignorance.有些物种由于人们的无知而灭绝了。We should be discouraging the unnecessary destruction of any wild species.我们应该阻止任何不必要的灭绝野生物种的行为。Prehistoric fires may have killed off the big beasts that once roamed Australia.史前阶段的数场大火可能使一度生活在澳大利亚的大型野生动物通通灭绝。Archaeologists think that massive floods could have wiped out the dinosaurs.考古学家认为可能是大洪水使恐龙灭绝的。There are lots of ways of annihilating the planet.有多种方式可以灭绝这个星球上的生物。Scientists hypothesize that the dinosaurs were killed by a giant meteor.科学家假设恐龙灭绝的原因是一颗巨大的流星撞击了地球。Many species are doomed to extinction.许多物种注定要灭绝。The idea of cloning extinct life forms still belongs to science fiction.克隆已经灭绝的生物的想法仍旧只限于科幻小说中。The numbers of these animals have been falling steadily and they are now almost extinct.这些动物数量持续下降，现在几近灭绝。These insects are very difficult to eradicate.这些昆虫很难灭绝。The red wolf survived until a short time ago in east Texas, but is now believed extinct in the wild.直至不久前，红狼还在得克萨斯东部生活，现在据说在野生环境下已经灭绝了。As a result of pollution, many species have died out.由于污染，许多物种都灭绝了。The fish are gone from the North Sea and there's no trade for small coasters.这种鱼在北海灭绝了，那些从事沿海贸易的小船便没有生意可做了。The species was doomed to extinction.这一物种注定要灭绝。The use of pesticides is killing off birds and fish.杀虫剂的使用将使鸟类和鱼类灭绝。Epidemics wiped out the local population.传染病导致当地人口灭绝。They are carrying out research to establish exactly why so many species of songbird are disappearing.他们正在进行研究以确定那么大量种类的鸣禽灭绝的原因。These animals are in danger of becoming extinct. = They are in danger of extinction.这些动物都有灭绝的危险。We could all be wiped out by an A-bomb, an earthquake, or something of that nature.人类可能会被一颗原子弹、一场地震或其他类似的灾难灭绝。A number of species could soon disappear forever.许多物种可能在短期内灭绝。It's going to be the death knell of the red deer.这将导致马鹿的灭绝。Scientists have found fresh evidence to suggest that a huge explosion led to the extinction.科学家发现的新证据表明一次大爆炸导致了它们的灭绝。Many species have been extirpated from those areas.许多物种已在那些地区灭绝了。There are several theories as to why the dinosaurs became extinct.恐龙为何灭绝有多种说法。Many wild plants are under threat of extinction.许多野生植物面临灭绝的危险。The valley contains fossils of many extinct species.这个山谷里有许多已经灭绝的物种的化石。That species is in imminent danger of extinction.那物种有即将灭绝的危险。The idea of cloning extinct life forms still belongs to science fiction.克隆已经灭绝的生物的想法仍然属于科幻小说的范畴。Many endangered species now face extinction.许多濒危物种现正面临灭绝。People have proposed all sorts of hypotheses to explain why dinosaurs have become extinct.人们提出种种假设，试图说明恐龙为什么会灭绝。Dinosaurs vanished from the face of the earth millions of years ago.数百万年前恐龙就从地球上灭绝了。The animals are on a watch list of species that could become extinct soon.这些动物已被列入物种监控名单，它们可能很快会灭绝。Many plants become extinct before they have even been catalogued.许多植物甚至还没来得及编入目录就已经灭绝了。Scientists aren't certain what killed off the dinosaurs.科学家还不确定是什么原因导致恐龙灭绝。The spill could wipe out the Gulf's turtle population.这次原油泄漏可能会使波斯湾的海龟灭绝。That species disappeared in the Ice Age.那种生物在冰川期中灭绝了。There are several theories about what caused the demise of the dinosaurs.关于恐龙灭绝的原因，存在好几种说法。 |