You may have heard of "TED Talks", which are given by noted speakers on a range of topics and uploaded to the Internet at some point. As we have the computer lab today, let's make use of it to listen to a speaker.
http://www.ted.com/talks/wade_davis_on_endangered_cultures.html
You will find it impossible to catch everything he says, but I think you will be able to understand his main point. The first 5 minutes or so are where the main idea is expressed (listen carefully to that), followed by lots of examples afterwards. Skip over some of the later part if you like, but listen to the final 3-4 minutes for the summary of his main idea.
Afterwards, compare (discuss) your impression with your classmates. What was the main idea? In case you find it too difficult, I will post a brief summary of the main idea soon. That post will contain the topic for your next post.
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