最新医护英语三级unit3partiiiiippt课件ppt课件.ppt

医护英语三级医护英语三级unit3partiiiiipptunit3partiiiiippt课件课件Review 复习提问复习提问 Dictation.New lesson Reading Comprehension Golden rules of reading. (P59)3. In the process of COPD development, the alveoli finally show change in their _.Para 3The alveoli turn floppy and out of shape, New lesson Reading Comprehension Golden rules of reading. (P59)4. The larger sac is produced by _.Para 6, with more and more walls between alveoli destroyed,New lesson Reading Comprehension Golden rules of reading. (P59)5. Patients with COPD rarely have optimal prognosis means _.Para 8 Although medical treatment for COPD does relief some symptoms such as cough and sputum, most signs and symptoms tend to follow a gradual worsening.New lesson Reading Comprehension Golden rules of reading. (P59)6. Which of the following is NOT applied through inhalation?Para 9 Treatment for COPD has various options including bronchodilators, inhaled glucocorticosteroids, pulmonary rehabilitation, oxygen treatment and surgery. New lesson Text StudyChronic obstructive pulmonary disease (COPD) is chronic, irreversible and progressive disease of the lower respiratory tract in the lungs.慢性阻塞性肺病慢性阻塞性肺病(COPD) 是一种慢性的、不可逆的进是一种慢性的、不可逆的进行性下呼吸道疾病。行性下呼吸道疾病。New lesson Text StudyLong-term exposure to such irritants as chemicals, pollution and dust also contributes to the development and exacerbation of COPD.长时间暴露于化学品、污染或粉尘等刺激物也是引发长时间暴露于化学品、污染或粉尘等刺激物也是引发或加重或加重COPD 的诱因。的诱因。New lesson Text StudyNormally, the passageways from the nose to the sacs are clear, allowing air and oxygen breathed in through the bronchioles and into the alveoli, where oxygen finally gets absorbed into the bloodstream. 正常情况下，鼻腔到肺泡的气体通道保持通畅，可使正常情况下，鼻腔到肺泡的气体通道保持通畅，可使空气和氧气直接进入细支气管以及肺泡，最终氧气经空气和氧气直接进入细支气管以及肺泡，最终氧气经肺泡吸收入血。肺泡吸收入血。New lesson Text StudyIf the irritants exist for long and continuously get into the human body through inhalation, the bronchioles and alveoli will lose elasticity and walls between alveoli will be destroyed. 如果刺激物长期存在，并持续随吸气进入人体，细支如果刺激物长期存在，并持续随吸气进入人体，细支气管和肺泡就会失去弹性，肺泡壁也会受到破坏。气管和肺泡就会失去弹性，肺泡壁也会受到破坏。New lesson Text StudyThe little sacs in the stage of chronic bronchitis break up and are combined into small number of larger sacs, resulting in a decrease of surface area for oxygen and carbon dioxide exchange. 慢性支气管炎中形成的小容量肺泡破裂，融合成少量慢性支气管炎中形成的小容量肺泡破裂，融合成少量大容量肺泡，致使肺内进行氧气和二氧化碳气体交换大容量肺泡，致使肺内进行氧气和二氧化碳气体交换的表面积减少。的表面积减少。New lesson Text StudyBesides, the long-term lack of oxygen in the blood will also cause symptoms in other systems and organs, such as irritability, headaches, sleeplessness and fatigue, confusion, anxiety, dizziness, and pallor or cyanosis. 此外，长期的低血氧状态还可引起其他系统和气管的此外，长期的低血氧状态还可引起其他系统和气管的症状，例如易怒、头痛、失眠、疲乏、意识混乱、焦症状，例如易怒、头痛、失眠、疲乏、意识混乱、焦虑、头晕眼花、苍白或发绀等。虑、头晕眼花、苍白或发绀等。Summary 课堂小结课堂小结 New words and phrases. Reading and translation skills.Exercises 巩固练习巩固练习Translation.Homework 作业布置作业布置 Recite the words. Practice the reading and translation skills. Assign task to the little teacher.