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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：
Three possible theories of why sturgeon fish jump into the air.
听力材料：
1：They don’t eat in the summer since they are fed in winter with enough food, and they are bottom fed, they eat from the sea floor.
2：The most dangerous parasites are internal, not external, even some domesticated have external parasites.
3：The human invasion is accidently, even without the invasion, the fish also jumped.
阅读材料：
1：They need to feed themselves by the insects in the air.
2：They want to remove the parasites on the scales.
3：They are aggressive when the tourists’ boats invade their territory.
