In the last lesson, you learned about the Great Acceleration. Do you remember what that is? If not, review the website: Great Acceleration.
When you are ready, do the comprehension exercise and the vocabulary review exercises.

When you are finished, do the survey (quiz).



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Go Green! Online ESL Course by Elizabeth Lavolette is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.