第 20 单元
一、教法建议
【抛砖引玉】
本单元围绕造纸这一题材，让同学们通过阅读"Paper"一文，深刻认识我国古代劳动人民的智慧及纸的发明对世界的影响。
单元双基学习目标
Ⅰ.词汇学习
四会单词和词组：ink , come out , throw away , metal , pot , form , at the same time , include , Spain , Spanish , engine , rocket
三会单词和词组：development , print , printing , press , method , lightly , unknown , everyday , net , fishing net , sheet , describe , steam
Ⅱ. 交际英语
Prohibition and warnings 禁止和警告
1 . You can't / must not…
2 . You'd better not do it .
3 . Don't smoke ! / Don't be late !
4 . Look out ! / Take care ! /Be careful !
5 . If you… , you'll
6 . Be sure not to ( you don't ) …
7 . If you don't want to…you'd better…
8 . If you dare… , you'll…
9 . Look out for…/Be careful with…
Ⅲ. 语法学习
定语从句与其近似句型简析
⒈ ⑴ It is such a modern machine few of the workers know how to operate it .