《红宝书考研英语》为考研助力！红宝书·为考研的同学整理解析历年考研真题中的长难句。
They have been spurred in part by DNA evidence made available in 1998, which almost certainly proved Thomas Jefferson had fathered at least one child with his slave Sally Hemings.
词汇突破
spur [spɜːr]
n. 马刺；鞭策；山嘴；（公路或铁路的）支线；骨刺
v. 用踢马刺驱马前进；激励；促进
slave [sleɪv]
n. 奴隶；从动装置
vi. 苦干；拼命工作
结构分析
该句的主干是：They have been spurred。in part by DNA evidence 是状语。过去分词短语made available in 1998 是 DNA evidence 的后置定语；which 引导的定语从句修饰的也是 DNA evidence。Thomas Jefferson… 是 proved 的宾语从句。with his slave Sally Hemings 是状语。
