冀教版八年级下册Lesson17导学案.docx

1、Lesson 17： Save the Tigers【认知学习目标】1 .识记单词：century;fur;symbol;courage;brave;chain;balance;reason;disappear;kill;cut; decrease2. 掌握句型短语：at the beginning of;the number of;at the top of;keep.in balance;be in danger of.;cut down; as well;drop to;food chain;be important to;in recent years【预习成果展示】.l. stron

2、g（名 词）2.balance（形容词）4.drop（过 去式）3. 在之初4.下降到，跌至5.食物链6. 保持平衡7的数量8.aswell9.in danger10.cutdown11. at the topof.12. be important to13. in recent years【课堂学习研讨】-、Learn new words and explain some of them二、Listen and Read the text, then finish exercise (Let's do it EXI. 2 )三、Language points师生合作找出下面句中的语言

3、点1. At the beginning of the 20th century, the number of tigers in the wild_was around 100 000.2. For this reason, tigers are important to the environment.3. In recent years, tigers have been in danger of disappearing.4. As forests disappear, tigers lose their homes.【当堂训练检测】一、 用所给词的适当形式填空1. The numbe

4、r of pages in this book(be) two hundred.2. The number of wild animals(have) become less and less in recentyears.3. A number of books in our school library(be) about the young.4 .我们应该阻止人们砍到树木。We should stop people fromthe trees.5 .如果你深夜单独出门可能会有危险。You may be if you go out alone late at night.6 .荷兰队己降至第五名。The Dutch team fifth place.7. 自然界的食物链应该保持平衡。Thein nature should keep .8 .许多学生喜欢玩电脑游戏。 stude