目 录 上一节 下一节 
这个人是太空科学家。 to make a public speech 发表演说 to learn about words in dictionary 用词典学习单词 great painter 伟大的画家 sightseeing 观光 
我的（未来的）儿子想必是个天才。 The author of these books is a great writer. 这些书的作者是位伟大的作家。 to speed-read 速读 to live in the library 过着研究的生活 to teach how to drive a car 教人驾驶汽车 
他在研究阿米巴（一种线性变形虫）的生态。 The man is a piano accompanist. 这个人是钢琴伴奏者。 She is singing in practice. 她在练习唱歌。 violinist 小提琴演奏家 to conduct an orchestra 指挥交响乐 
学者 He has majored in biology. 他专供生物学。 He studied quite a lot. 他非常用功。 Teacher. He is teaching. 老师。正在教书。 Pupil. He is studying. 学生。正在学习。 
用打字机打期末报告 The target shooting requires the power of concentration. 射击需要集中精神。
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