阅读下面短文，然后根据短文内容回答问题。

　　Children start out as natural scientists, eager to look into the world around them．Helping them enjoy science can be easy; there's no need for a lot of scientific terms or expensive lab equipment．You only have to share your children's curiosity(好奇)．Finally, listen to their questions．I once visited a classroom of seven-year-olds to talk about science as a job．The children asked me“textbook questions”about schooling, salary(薪水)and whether I liked my job．When I finished answering, we sat facing one another in silence．Finally I said,“Now that we've finished your lists, do you have questions of your own about science?”

　　After a long pause, a boy raised his hand,“Have you ever seen a grasshopper(蚱蜢)eat? When I try eating leaves like that．I get a stomachache．Why?”

　　This began a set of questions that lasted nearly two hours．

　　Secondly, give them time to think．Studies over the past 30 years have shown that, after asking a question, adults typically wait only one second or less for an answer, no time for a child to think．When adults increase their“wait time”to three seconds or more, children give more logical(符合逻辑的), complete and creative answers．

　　Thirdly, watch your language．Once you have a child involved in a science discussion, don't jump in with“That's right”or“Very good”．These words work well when it comes to encouraging good behavior(行为)．But in talking about science, quick praise can signal that discussion is over．Instead, keep things going by saying,“That's interesting”or“I'd never thought of it that way before”, or coming up with more questions or ideas．

　　Never push a child to“Think”．It doesn't make sense, children are always thinking, without your telling them to．What's more, this can turn a conversation into a performance．The child will try to find the answer you want, in as few words as possible, so that he will be a smaller target for your disagreement．

　　Lastly, show; don't tell．Real-life impressions of nature are far more impressive than any lesson children can learn from a book or a television program．Let children look at their fingertips through a magnifying glass(放大镜), and they'll understand why you want them to wash before dinner．Rather than saying that water evaporates(蒸发), set a pot of water to boil and let them watch the water level drop．

1．What's the most important thing for adults to do when children are natural scientists, and to raise their interest?

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2．What can replace the word“list”in the last sentence of the first paragraph?

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3．How long should adults wait so that children can answer questions in a more logical, complete and creative way?

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4．What can we say to encourage children in a science discussion?

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5．Which is a better way for adults, tell their children or encourage their children to ask questions of their own?

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