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5.我恐怕大卫和莉莎的个性都不适合当艺术家。—

I,m afraid_ being    an    artist.

5. neither David's nor Lisa’s personality is suitable for

题目来源:2015年时代新课程初中英语九年级上册 > 9AUnit 1 Know yourself

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―、阅读理解

  When you're packing for an adventure, what's the most important thing you'll need? If you don't want to

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Scientists placed some baby salmon into a big swimming pool. To simulate the Earth's magnetic field, they put magnetic coils (线圈)all around the pool. Then, by changing the direction of the coils, the salmon began to change their own direction. They started to face in the direction of their ocean feeding area. This is a safe place in the ocean where salmon can find food to eat. When the scientists changed the coils to the opposite side, the salmon also turned in the opposite direction. Just by using their "built-in GPS", the salmon were able to find out the direction of their feeding area.

How did Chinook salmon get their "built-in GPS"? The scientists believe that their navigation (导航)skills came through evolution (进化).The fish that were able to reach the feeding area lived longer.

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