题目内容

观察下列句子,试着归纳其画线部分所包含的句型结构。

1.There is no need to debate any more about why different words are used to describe the four countries…

______________________

2.Although the four countries do work together in some areas…

______________________

3.It looked splendid when first built!

______________________

答案:
解析:

  1.There is no need to do sth.没有必要做某事

  2.do强调谓语

  3.when+分词(状语从句中的省略)
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