题目内容：

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

Think about all the plastic in our lives like plastic bags, cups and plates around us and also those forks and 1. （spoon） in your school cafeteria which may be plastic. For better or for 2. （bad）, plastic seems to be everywhere.

Back in 3. 1990s, a man 4.（name）Charles Moore discovered a huge island of plastic 5.（float）in the North Pacific Ocean—tons and tons of floating plastic items and garbage. Since then, four more floating islands of plastic 6.（discover）in other parts of the world.

Although experts are not sure 7. the plastic is doing to the health of our oceans or our own health right now, they suspect small fish are eating tiny bits of the plastic which are getting into big fish when they eat the small fish. We, at the top of the food chain, perhaps are the last that the plastic is very 8.（like）to get into.

Moore and his fellow researchers hope 9.（figure）out what effect the plastic is having, but right now what they do know 10. sure is that from 10,000 to 35,000 tons of plastic is floating on the surface of our oceans. And we humans put it there.