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　　本句是一个复合句。本句主句是A team of heart-imaging experts and Egyptologists examined 22 mummies...,from the the Egyptian National Museum of Antiquities in Cairo介词短语作后置定语，修饰mummies。in a CT scanning machine介词短语作状语。looking for...disease现在分词短语作目的状语。其中that引导限制性定语从句，修饰calcium buildup。

　　语法重点：介词短语作定语，介词短语作状语，分词短语作状语

　　2. An analysis determined the deposits were either definite or probab1e evidence of atherosclerosis，the condition that leads to heart attacks and strokes.

　　本句是一个复合句。determined后面是省略了引导词that的宾语从句，充当determined的宾语。其中either...or...连接两个并列的结构。the condition是atherosclerosis的同位语，that引导定语从句，修饰 condition。

　　语法重点：宾语从句，并列结构，定语从句

　　3. In addition, because there wasn't refrigeration，salt was commonly used to preserve meat and fish, raising the possibility that some of these Egyptians had high blood pressure.

　　本句是一个复合句，主句是salt was commonly used to preserve meat and fish，其中to preserve meat and fish不定式短语作目的状语。because引导原因状语从句。raising the possibility...pressure现在分词短语作结果状语。其中that引导同位语从句，解释说明possibility。

　　语法重点：不定时短语作状语，原因状语从句，分词短语作状语，同位语从句