阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Jennifer Jones, a 15-year-old teenage girl, fainted in her PE class. Then she 【小题1】(rush) to hospital. She was found to have dangerously low blood sugar 【小题2】(level) for skipping meals. Fortunately, she was treated 【小题3】(immediate) and soon recovered.

She thought skipping meals would be 【小题4】 simple way to reach her target weight. She hadn’t eaten breakfast for the last few months. She had trouble 【小题5】(concentrate) in class. In addition, she didn’t follow her friend’s warning that skipping meals was unhealthy.

The unhealthy weight-loss habits have become common among teenagers. In a society 【小题6】 being thin is often seen as being beautiful, teenagers sometimes turn 【小题7】 extreme methods to slim down quickly. A health expert 【小题8】(suggest) that they should have a healthy balanced diet. She also holds the view that they should keep regular hours and get plenty of exercise 【小题9】(stay) energetic and fit. That’s because living well is the safest and 【小题10】(effective) way to get into shape.