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1、备战2021高考英语-外刊精读与练习The dogs who safeguard our hearts养狗能保护我们的心脏健康语篇导读：有人说养宠物对人类身心健康有好处，那么养狗真的可以让人健康长寿吗？据一项最近调查显示，狗主人患心血管疾病的可能性要远低于不养狗的人。这是为什么呢？这项调查的结果可信吗？本文让我们一起探讨养狗和人类心脏健康之间的联系。Step 1 Vocabulary 词汇表canine 犬的pedigree（动物）纯种mongrel 杂种狗tame（尤指动物）温顺的stray 流浪的companionship 陪伴，友谊fetch 拿来，取回，guard 守卫，保护Fido
2、对宠物狗的一个通用名称close to ones heart 贴近某人的心warm the cockles of your heart 温暖你的内心cardiovascular 心血管的breed（动物）品种physical activity 体育运动social contact 社会关系，社会往来bacterial microbiome 细菌微生物群gut 肠道on ones lonesome 单独的，独自的cardiac arrest 心脏停搏your heart skips a beat（形容紧张或兴奋）心跳停了一下top dog 最好的狗，胜利者cross my heart 我保证所说
3、属实dogs and hearts 犬和心脏Step 2 Reading and understandingAs a dog lover, our canine companions always fill me with joy.Whether pedigree or mongrel, tame or stray, whenever I see one, I smile. After all, their loyalty is indisputable, their companionship is always welcome, they fetch for us, guard for u
4、s and even work for us when required. Good old Fido has always been close to my, and many others hearts.Well, not content with just warming the cockles of your heart, it seems that our four-legged-friends actually lower the risk of cardiovascular disease, according to a 2017 scientific study, which
5、looked at 3.4 million Swedes from 2001 to 2012.The study concluded that this lower risk, which was particularly evident in owners of hunting breeds, may not just be due to the increased physical activity that goes hand-in-hand with owning a dog, but could also be down to dogs increasing the owners s
6、ocial contact, or by changing the owners bacterial microbiome, which is the collection of microscopic species that live in the gut. Dogs change the dirt in home environments and therefore expose people to bacteria that they would otherwise not encounter.These effects were particularly marked in thos
7、e who lived on their lonesome. According to Mwenya Mubanga of Uppsala University and lead author of the study, single dog owners had a 33% reduction in risk of death and an 11% reduction in risk of cardiac arrest compared to single non-owners.However, before your heart skips a beat, Tove Fall, senio
8、r author of the study, also adds that there may be limitations. Its possible that the differences between owners and non-owners, which already existed before the dog was bought, could have influenced the results or that people who are generally more active also tend to get a dog anyway.It seems that
9、 the results are not as clear cut as they initially appear to be, but as far as Im concerned, thats ok. I love dogs for how they make me feel and, cardiovascular benefits or not, theyll always be top dog to me cross my heart.Step 3测验与练习Task 1 阅读课文并回答问题。1. What reasons does the author give for loving
10、 dogs?They fill the author with joy. Their loyalty is indisputable, their companionship is always welcome, they fetch for us, guard for us and even work for us when required2. When did the study mentioned in the article take place and who were its participants?The study took place between 2001 and 2
11、012. Its participants were 3.4 million Swedes.3. Which three reasons are given for a dog reducing a persons cardiovascular risk?The increased physical activity associated with dog ownership, the increased social contact and the change of the owners microbiome.4. True or false? Single-household dog o
12、wners see no health benefits compared to single-household non-ownersFalse. Single dog owners had a 33% reduction in risk of death and 11% reduction in risk of cardiac arrest compared to single non-owners.5. What limitations are mentioned that could affect the results of the study?There may be a diff
13、erence between dog owners and non-owners that existed before the dog was obtained. Its also possible that people who tend to buy dogs are also generally more active.Task 2 请在不参考课文的情况下完成下列练习。选择一个意思合适的单词填入句子的空格处。1. That dog doesnt have an owner so come away immediately. Cant you see its a _? It might
14、have a disease!A. tame B. Fido C. stray D. mongrel2. Quickly, nurse. Hes going into _. Get me the defibrillator!A. microbiome B. top dog C. canine D. cardiac arrest3. He wont bite, but he doesnt like being touched. Its _ his last owner, who used to beat him.A. cross my heart B. down to C. clear cut
15、D.breeds4. How can you not see it? Theres a _ difference between the first picture and the second!A. marked B.gut C. hand-in-hand D. tame5. Please stop smoking, son. It goes _ with cancer and you dont want that.A. skips a beat B. cross my heart C. on their lonesome D. hand-in-handTask 3 语法填空As a dog
16、 lover, our canine companions always fill me with joy.Whether pedigree or mongrel, tame or stray, whenever I see one, I smile. After all, their _1_ (loyal) is indisputable, their companionship is always welcome, they fetch for us, guard for us and even work for us when _2_ (require). Good old Fido has always been close to my, and many others hearts.Well,
