题目内容：

A PLANE crashed (坠机) in Libya on May 12, killing 103 people on board. The only survivor is a 10-year-old Dutch boy.

This is not the only example of a crash in which everyone but a child died. A 12-year-old girl was the only person to survive a 2009 air crash in the Indian Ocean. When a plane crashed over Sudan in 2003, only a 3-year-old boy survived.

It's a question that leaves safety experts puzzled. So far there is not enough hard evidence for them to answer with any certainty.

Although unclear, there are reasons to suggest that children may cope (应对) better than others.

Professor Ed Galea at the University of Greenwich, suggested children would be cocooned(被紧紧抱住) within their seat and therefore might be less probably to receive injuries.

"With an adult with their head above the seat and legs on the floor, they will receive some kind of injury landing on your head and legs," he told the BBC.

"It would be miraculous (奇迹的) to survive that, but there have been cases(情况) of people falling into trees. A smaller body would mean it's more possible the tree would break your fall," he explained.

Studies found other factors (因素), besides luck, influence the chances of surviving a crash.

One is seating. A study of plane crashed conducted by Poplar Mechanics found that people sitting toward the back of the plane were more probably to survive than those sitting toward the front. A survey conducted by researchers at the University of Greenwich in the UK found that what matters most is how close you are to an exit(出口). Sit in five rows(排) of an exit, and you've got better-than-even chances of surviving. Sit in six rows or more away, and your chances are less than 50-50.

Other factors for surviving a plane crash include wearing a seat belt, paying attention to flight instructions and staying alert(警觉) during taking off and landing. And of course, don't fly with airlines that are the most pobably to crash.

1.根据短文内容完成句子 (每空限填一个单词)

From Paragraph 1 we know only a 10-year-old Dutch boy _________ __________.

2.根据短文内容完成句子 (每空限填一个单词)

From Paragraphs 1-2 we may ask if _________ are more possible to survive plane crashes than __________.

3.根据短文内容完成句子 (每空限填一个单词)

According to paragraph 9, Sit six rows or more away, and you’ve got __________ _________of surviving.

4.把短文中画底线的句子译成汉语。

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5.根据短文内容用一个完整的英语句子（限10个词以内）回答问题。

What’s the main idea of the passage?

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