congratulated him on having passed the examination.我们祝贺他通过了考试。He congratulates himself on having chosen a good woman to be his wife.他暗自庆幸自己挑选了一位贤惠的女子作妻子。
2. cf. especially, specially
especially: to an exceptional degree; in particular: 特殊地，尤其，常用于正式文体中: This is a very common word, especially in spoken English.这是一个很普通的词，尤其在英语口语中。She likes the country, especially in spring.她喜欢这个国家，尤其是春天。
specially:for a particular purpose: 特别地，专门地，表示“为了特别的目的”：This cake was specially made for you. 这个蛋糕是专门为你做的。
3. cf. be known as, be known for, be known to sb.
be known as作为……而闻名；be known for以/因……而闻名；be known to sb.为……而熟悉。如：He was known as a excellent singer.他作为一名优秀的歌手而闻名。The city is k nown for its long history.这座城市以它的悠久的历史闻名。 He is known to the police as a thief. 警察都知道他是个小偷。
III. Explanation of difficult sentences
1. It seemed that the world was at an end.似乎世界末日来临。
seem连系动词，似乎，好象
1）seem + (to be ) + adj./n.
2）seem + to do
3）seem + like + n.
4）It seems/seemed (to sb.) + that-clause如：Our English teacher seems to be a kind man. He seems to know everything = It seems that he knows everything. It seems like years since we last met. It seems that I have seen her before. = I seem to have seen her before.
2. Everywhere they looked nearly everything was destroyed.人们无论朝哪里看，几乎一切都被毁了。
everywhere 用作连词，等于wherever, no matter where，引起让步状语从句。如：Everywhere I go, I find the same thing.无论我去哪儿，我都看到一样的东西。You see it everywhere you look.无论你往哪儿看，你都会看到它。