【答案解析】①What a delight it is for us to see ancient life perfectly preserved!
②How delighted we are to see ancient life so well preserved!
③How happy we are to see ancient life preserved so well! [解析] 考点是感叹句的译法以及单词preserve(保存)的用法，感叹句译为：how+adj+主语+谓语动词或是what+n.+主语+谓语动词。