致命动物: lion,kangaroo, caterpillar, snake, polar bear, crocodilehippo, elephant, buffalo, shark, stonefish, puffer fish, jellyfish,octopus, dart frog, scorpion, spider 描述动物的词: fierce,deadly, mighty, powerful, ferocious,scary,poisonous,gigantic 动物的身体部位: tooth,claw,bristle,jaw,tusk,foot,trunk,headhoof, horn, lung, spine, brain, fang, arm, eye, tentacle, skin, pincerstinger, tail, sac insteadof代替;而不是 be aware of 知道 be allergic to...对.....·过敏 focus on 关注;聚焦于 not hesitate to 毫不犹豫地去 due to 由于 protect...from...保护......不受..... when 引导的时间状语从句，例如: When an enemy attacks,a pufferfish gulps water and blows up like a prickly balloon. 关系词在定语从句中作宾语时可以省略，例如: The African lion hasall the features you'd expect to find in one of the world's deadliest “特殊疑问词 +不定式”句型，例如: Like a lion,a polar bear is aanimals.skilled hunter that knows exactly when and how to attack.