Many historians of the ancient world are wary of sounding dogmatic.Write so much as a sentence and the temptation is immediately to qualify it.
为何一个动词不加任何变化就放在了开头？作什么成分呢？
Many historians of the ancient world are wary of sounding dogmatic. Write so much as a sentence and the temptation is immediately to qualify it.
【答】这个句子确实比较难。由于这两句话之间有关联，所以先剖析第一句：Many historians of the ancient world are wary of sounding dogmatic.
主语部分：Many historians of the ancient 很多古时候的历史学家。
谓语部分：are wary of 意为：“注意；注意；防备；小心；小心；警惕；谨慎防范；惟恐”。
宾语部分：sounding dogmatic 动名词短语作宾语，意为：（所作的结论叫人）听起来武断。
【第一句翻译】很多古时候的历史学家非常注意防备所作的结论叫人听起来武断。
▲ 目前剖析第二句：Write so much as a sentence and the temptation is immediately to qualify it.
1. Write so much as a sentence 其实是一个祈使句形式，表达“条件或让步”意义，and 之后的句子为“结果”。这句话实质是说：
if they write so much as a sentence, the temptation is immediately to qualify it.
2. so much as：表示程度或让步，意为“甚至，连…也都如何”。
3. the temptation is immediately to qualify it：这种防备的魅惑立刻就要让这个句子合格。
4. is toqualify it：这是以后时结构的一种。在本句的意思是：“必须要做某事”——“必须要检验这个句子合不合适适合”。
【第二句翻译】这种防备之心，甚至写一个句子都要立刻去验证，让其适合适合。
Many historians of the ancient world are wary of sounding dogmatic. Write so much as a sentence and the temptation is immediately to qualify it.
【全句翻译】很多古时候的历史学家非常注意防备所作的结论叫人听起来武断。即便（即使/甚至/倘若）写一个句子，这种防备之心也要立刻去验证，让其适合适合。