【教材分析与导入】选修8 Unit 5 Meeting your ancestors Period 2（新课标人教A）
三维目标
Knowledge and skills
1. To help the students learn to how to use the following important new words and phrases freely:
Alternative, starvation, tentative, accuracy, interrupt, acute, assume, regardless, mat, quilt, beast, centimeter, sharpen, ample, messy, primitive, botany, analysis, seashell, ripen, category, significance, somehow, systematic, spit, delete, album, scratch, academy, receptionist, onion, kindergarten, skateboard, yogurt, radioactive, division, melon, wrinkle, pulse, applaud, howl, accelerate, spear, arrest, dizzy, hammer, gay, skilful, punctuation
2. To help the students to understand and use the following important and useful sentence patterns:
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 shown 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, melon and other fruit. P43
