讲解

Though typically about two inches taller now than 140 years ago, today’s people—especially those born to families who have lived in the U.S. for many generations—apparently reached their limit in the early 1960s.

生词

• typically adv. 通常，一般；代表性地，典型地，作为特色地
• especially adv. 特别；尤其
• generation n. 一代人，同代人，同辈人
• apparently adv. 显然地，表面上
• apparent adj. 显然的，表面上的
• reach limit 达到极限

解析

1. 找谓语动词：have lived/reached
2. 断开：who
   1. 【主句】句1：Though typically about two inches taller now than 140 years ago, today’s people — especially those born to families … — apparently reached their limit in the early 1960s.
   2. 【定语从句】句2：who have lived in the U.S. for many generations

预习

While Washington and Jefferson privately expressed distaste for slavery, they also understood that it was part of the political and economic bedrock of the country they helped to create.

生词

• privately adv. 私下地；秘密地
• distaste n. 不喜欢；反感；厌恶
• part of … 部分
• bedrock n. 基岩；基本原则；基础

解析

1. 找谓语动词：expressed/understood/was/helped
2. 断开：,/that/they
   1. 【主句】句1：they also understood
   2. 【while引导的让步状语从句】句2：While Washington and Jefferson privately expressed distaste for slavery
   3. 【that引导的宾语从句】句3：that it was part of the political and economic bedrocr of the country
   4. 【定语从句】they helped to create.