③ 主题提示：医院修花园对病人的影响 Gardens in hospital

　　31-40）completions

　　31. help recover from infection 

　　32. recover better with a view of nature than a view of wall

　　33. Hospital is a source of stress

　　34. good for health, especially to heart 

　　35. benefits to immune system

　　36. research methods include observation and interview

　　37. a garden with a fountain is very popular

　　38. garden needs easily moved furniture

　　39. somewhere attracts birds 

　　40. old people want to feel a part of society

　　④ 主题提示：动物冬眠 Animals which are in hibernation

　　31-40）completions

　　31. preparation for natural resources

　　32. insects：there is a stressful reaction

　　33. risks less starvation compare from other animal in winter

　　34. they can still sense the change in temperature and light

　　35. there will be more competition 

　　36. they can bury themselves in mud

　　37. limit the evaporation

　　38. they are poisonous，and reduction in numbers

　　39. squirrels come back to the nearest nest

　　40. when frogs wake up，a part of heart would firstly heat up.