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或：(The meeting came to an end though it was still early.) 或：(Before I could speak anything，the meeting came to an end.) 如此等等，不胜枚举。只要我们善于扩充，适度添加单词、短语或从句，句子就会更富有表现力。 3．着意添加成分，实现高级扩展 如果我们给一个简单句着意添加一些附加成分，句子的扩展性则会更强。 我们以“他上学来晚了”为中心句，便可尝试添加附加信息：他昨晚熬夜了；他没赶上车；他没耽误第一节课；不然他就赶上第一节课了。这样，我们便会有以下句子： He stayed up last night，so he came to school late. He came to school late because he stayed up late last night. He missed the bus，so he came to school late. He missed the bus，but he didn’t miss the first class. He missed the bus，or he wouldn’t have missed the first class. 4．运用修辞手法，实现自由扩展 只要有几个句子罗列出现，句与句之间便有一定的关系。如果我们想表达承接、转折、因果、递进等关系，扩展句子时，就可以根据语义自由选择恰当的关联词。 用于不同功能的这类词汇有： 并列：and，as well as，also，both...and，neither...nor...，not only...but also...等； 选择：or，either...or，neither...nor，otherwise等； 原因：because，for，as，since，owing to，due to等； 结果：so，therefore，thus，as a result等； 时间：when，before，later，first，and then，next等； 比较：on the contrary，for another thing等； 转折：but，yet，however等； 让步：although, though, as, in spite of等； 递进：besides，even，what’s more，in addition等； 举例：for example，such as，like，namely等； 总结：in short，in general，in a word，to sum up等。 如： Tom saw a bird.The bird was wounded.He took the bird to the zoo.The workers in the zoo praised him.He arrived home late.He was happy. 以上虽然都是简单句，但Tom的行为线索还是非常清晰的。不过，这样表达，句子显得松散，意思不够连贯。假如我们适当地添加关联词和运用一定的修辞手段，便可把Tom的活动串成一段更加连贯的文字了： Tom saw a wounded bird，so he took the bird to the zoo.The workers in the zoo praised him.Though he came | 
