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?预习方法：1 划分音节，根据音标拼读识记新单词 2 养成良好的书写习惯
Ⅰ. 根据音标拼读自学单词并抄写下来，书写一定要漂亮哦！
Ⅱ. 在课文中找出下列短语并翻译，课前展示。
1. the number of..._________, a number of..._________
2.be in danger _________ 3.disappear_____，(反义词）
4. be important to..._________ 5.volunteer_______
6.drop to_______ 7. food chain_______
8.protect the animals_ 9.keep ...in balance
10.hunt and kill (tigers)for...___________
11. cut down _________ 12. as well_____
二、【合作探究】
Activity 1 Listen and choose
What was the number of tigers at the beginning of 20th century?
one hundred B. a few thousand C. one hundred thousand
?听力技巧：听前浏览答案，做到心中有数
Activity 2 Reading
Step1 Skimming
Read the passage quickly to match the main idea (大意)of each paragraph(每一自然段)
Paragraph1
Paragraph2
Paragraph3
?阅读技巧1:
略读全文，一般在首句或尾句获取文章大意或段落大意
Step2 Read for details
1. What are the volunteers hope to do?
2. Where do tigers live?
Why are tigers important to the environment?
3.What do people hunt and kill tigers for?
?阅读技巧2: 细读全文a捕捉语言信息，学会信息的对应。
b.能联系上下文或前后句猜测词义