在一个典型的英国家庭，饮茶是一个古老的传统。最近的研究表明饮茶可以降低患癌症和心脏病的风险，还可以延缓衰老进程。

Sentence No. 1 Courses for adult students may be vocational or recreational, that is, they may be related to a person’s job or taken purely for interest and pleasure.

Sentence No. 3 Drinking tea has been a long tradition of a typical British family. Recent studies suggest that tea can cut the risk of cancer and heart disease and retard the aging process.