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Directions: You have 20 minutes to plan and write your response. Your response will be judged on the basis of the quality of your writing and on how well your response presents the points in the lecture and their relationship to the reading passage. Typically, an effective response will be 150 to 225 words.
题目原文：
讨论the reasons about the death of Ichthyosaurs。
听力材料：
The reasons are not established.
1. The fossils of ichthyosaurs show that they died in different time. Some were formed earlier than others.
2. According to the seafloor, it was deep water in the past.
3. These nine bones were put in order; however, this creature only put them at random.
阅读材料：
Three possible reasons
1. They died of toxic algae.
2. They stranded in shallow water.
3. They were preserved in a pattern by other creatures.
