重点句式 1. I'm sorry to interrupt you, but how could they live here? P38

2. We have been excavating layers of ash almost six meters thick, which suggests that they might have kept the fire burning all winter. P38

3. Yes, indeed, as the botanical analyses have been specifically showing us, all the fields around here used to be part of a large shallow lake. P39

4. That's why they are called hunters and gatherers. P39

5. Worried about the preparations for her feast, Lala quickly turned for home with her collection of nuts and fruit. P43

6. If only she had looked ahead and planned better! P43

7. Lala accelerated her walk up the path to the caves fearing that there might be wild animals lying in wait for her. P43

8. He chose one large stone and began to hit one of the scrapers hard on the edge that needed sharpening. P43

III. 教材分析与教材重组

　　1. 教材分析

　　本单元以 General knowledge of archaeology and Anthropology as well as history 为话题，通过学习周口店洞穴北京人遗址、埃及古墓等古代文明，使学生了解一些考古学及人类发展变迁历史等方面的知识；激发学生热爱人类、热爱历史、热爱考古的兴趣，进而使学生懂得保护文化遗产的重要意义。通过对一些古文物的识别、鉴定和描述，使学生学会鉴别、描述事物(考古现象) 特征的方法。

　　1.1 Warming Up 给出了四幅图片，要求学生通过识别、描述古代中国、希腊、埃及的文物，使学生了解古代文明在人类社会发展史上的重大意义.

　　1.2 Pre-Reading 要求学生能从不同侧面比较、描述现代人和北京人的不同之处，为Reading部分的学习做好准备。

　　1.3 Reading 是一位考古学家和来参观周口店北京人遗址的英格兰学生之间的一段对话。要求学生通过阅读对话，了解周口店北京人在衣食住行、使用工具上的特点；了解古人类惊人的生活和创造能力。

1.4 Comprehending 共设计了三部分习题。第一题是Pre-reading的延续。要求学