2.The two men met in 744, and although very different, they became friends.

这两人(杜甫和李白)于744年相识，尽管风格迥异，两人仍然成了好朋友。 although very different是省略句。 Although_poor,_the man was very happy.

这个人虽然穷，但很快乐。 3.It is said that he drowned when he fell into a river while trying to take hold of the reflection of the Moon.

据说他在试图捉月亮的影子时掉进江里溺水身亡。 It is said that ... "据说......"，it是形式主语，that从句是真正的主语。 It_is_said_that eating fish helps develop the memory.

据说吃鱼有助于增强记忆力。 　　

　　1．(教材P71)Who do you think the poet's "friend" is? A close friend or an acquaintance?

　　你认为诗人的"朋友"是谁？亲密的朋友还是泛泛之交？

　　acquaintance n．[C]相识的人；泛泛之交；熟人[U]熟悉，了解

　　(1)make one's acquaintance/make the acquaintance of sb.

　　　 　　　　　　　　　　 结识某人

　　have (no) acquaintance with ...　 对......(不)了解

　　have a passing/nodding acquaintance with

　　 与某人有点头之交；对某事所知甚少

　　(2)acquaint vt. 使相识；使了解

　　acquaint oneself/sb. with 使......熟悉，了解

　　be acquainted with sb./sth. 认识某人/某物

①While travelling I made the acquaintance of many interesting people.