所有的文章都是由单词组成的，我们不可能认识所有的词语但是我们也可根据语境来分析出所讲的内容，在这里我根据文章的内容总结出几类常见的words

　　动物类：crow, parrot, boody, otter, sea cow, whale, dinosaur, koala, insect, orangutan, turtle

　　植物类：newzealand seaweed, pine, seed selection, seed hunting, bamboo, banana

　　空间类：celetrial body, mars and water, transit of venus, comet and jupiter

　　海洋类：thermal vent, flip ship and hinge ship, underwater archaeology, tide power,Elnino

　　企业类：corporation innovation, power and space, star staff, novice and expert

　　科技类：glass making, film making, E-learning, fingerprinter identification, timekeeper

　　教育类：interpretation, academic coruption, lost of language, IQ test, development of language

　　其他类：perfume, dream, pearl, team work, VR technology, self-esteem, TV addiction, American obesity

　　　　　　tickle and laugh, tea, rubber