Unit 3 Fit for life Extended reading 课文知识点讲解课件-2022-2023学年高中英语牛津译林版（2020） 选择性必修第二册

B5U3 Extended reading Acupuncture:magic needles period 2> STRESS One of the most famous Chinese medical treatments is the art of "magic needles",or Chinese acupuncture.It was developed long ago,perhaps as early as 2000 BCE.There is evidence that acupuncture dates back to the Stone Age,when stone tools called bian were used to press areas of te body. 关系副词When引导的定语从句 Language points BACK Point 1:There is evidence that... 有证据显示.…(that引导同位语从句) 日知识拓展：There is no evidence that... It is evident (adj.)that... Quite evidently,...=obviously,... Point2:Date back to=date from追溯到.. 口知识拓展：This is an early church,dating(date)back to the 9th century. date back to常用于主动式和一般现在时 随着 STRESS . As acupuneture developed,the siutple bid stones were replaced by stone needles.Eventually,metal needles began to appear and took the place of stone needles.These solid needles are made of different metals,such as gold and silver.Some acupuncturists today still use gold and silver needles,but the majority have now switched to stainless steel ones.In addition to the changes in material,the shapes of the needles have also changed over time.Originally,there were nine different kinds of needles,with yariations in shape.Nowadays, the fine sharp needles that measure usually between 15 and 75 millimetres in length are still used,while most of the others have been replaced by more complex medical instruments. 然而 Language points BACK Point.3:take place:发生 take the place of:代替 Point4:switch:改变；开关 switch/turn on打开（开关等） switch/turn off关闭（开关等） Point 5:origin (n.)_ original(adj.) originallyady.) Point 6:The fine sharp needles,measuring (measure)usually between 15 and 75 millimeters in length are still used. So what happens during a visit to the acupuncture clinic?First,the acupuncturist examines the patient,looking at the patient's skin and tongue,listening to the sound of his or her voice and breathing,and smelling his or her breath.Then the acupuncturist asks some questions about the patient's condition and fee