必修第二册 Unit 5 Humans And Nature B组-【导与练】2024高考英语一轮复习高中总复习第1轮能力提升题组训练（新教材，北师大版）

B组 Ⅰ.阅读 A (2022河南郑州外国语学校模拟预测) What is citizen science? Citizen science generally involves groups of people or amateur scientists helping gather data for use in nature or wildlife studies to support conservation.So whether you give your time online,or sign up for a practical project with a wildlife or nature organisation close to home, your generosity and kindness will not only help nature,but also make your world better as well. When we give,we feel good.We experience what scientists describe as the “warm glow effect” or “helper’s high”,now known to be caused by a release of endorphins (内啡肽) in the brain.Research into this effect discovered that giving to charities activates the areas of the brain associated with pleasure, social connection and trust.Put simply,altruism (利他行为) is a proven path to good mental health. When our altruism is related to nature,and in particular when we give our time and effort,the rewards for our well being,or our health and happiness,are far-reaching.Whether we’re working to maintain freshwater ponds at the weekend, or contributing to a citizen science survey by monitoring wildlife in our back garden,our care and kindness has the power to lift our mood and strengthen our self-respect,especially when we learn new skills and earn the added satisfaction of accomplishing new tasks. The hands-on aspect of taking part in nature and wildlife conservation projects has also been shown to reduce stress,anxiety and low mood.In 2020 a three-year study by the UK Wildlife Trusts found that 95 percent of participants who reported low mental well-being at the start of volunteering, recorded an improvement in their mental health after six weeks,which increased further after 12 weeks. Alan Murray,head of volunteering at the RSPB,also agrees: “We believe our volunteers keep coming back because of nature’s power to restore,uplift and inspire and we’re confident that the more time people spend connecting with wildlife,the more they feel moved to protect it