1、Unit 4 Scientists who changed the world Welcome to the unit & Reading教学设计科目：英语课题：Welcome to the unit & Reading课时：1课时教学目标与核心素养：知识目标：获取与梳理出屠呦呦的生平和主要贡献。能力目标：概括和整合屠呦呦团队发现青蒿素的艰辛过程；赏析语篇的文体特征，探讨其与主题意义的关联。情感目标：理性表达对伟大科学家屠呦呦高贵品格的崇敬之情，学习她对科学执着的信念、坚忍的意志和独特的人格魅力。感受科学家屠呦呦为中医药科技创新和人类健康事业做出的巨大贡献。教学重难点教学重点：获取与梳理出屠呦
2、呦发现青蒿素的艰辛过程和她的主要成就；赏析语篇的文体特征，探讨其与主题意义的关联。教学难点：理性表达对伟大科学家屠呦呦高贵品格的崇敬之情，学习她对科学执着的信念、坚忍的意志和独特的人格魅力，帮助学生形成正确的价值观。课前准备：多媒体，黑板，粉笔教学过程：一、Pre-reading1. Greeting2. Leading-in教师活动：(1) Show students some pictures of great scientistsand ask student to talk about them.(2) Many scientists have changed our lives an
3、d made a difference to the world. Play the video for students and askthem to finish the following exercises.What else do you know about the two scientists in the video?What other great scientists do you know of? 活动目的：调动学生学习积极性，同时引入文章主题。二、 While-reading1. 教师活动：让学生思考并完成下列表格：参考答案：NameTu YouyouProfessio
4、nScientist BirthplaceNingbo, Zhejiang ProvinceBirth dateDecember 30, 1930Graduated fromPeking University Health Science CenterWorkplaceThe Academy of Traditional Chinese MedicineMain contributionDiscovered qinghaosu, a crucial new treatment for malaria and has saved about 200 million people2. Ask st
5、udents to read the news report carefully and fillin the table blow.Problems SolutionsThe extracts failed to produce anypromising results.Tu referred to the ancient books oftraditional Chinese medicine again. Inspired by an over1,600-year-old text about preparing qinghao extractwith cold water, Tu re
6、designed the experiments andtried extracting the herb at a low temperature in ordernot to damage its effective part.Tu and her team could not produceenough qinghao extract becauseresearch resources were limited.Tu and her team managed to findsolutions to the problem. When there was no researchequipm
7、ent, they had to extract herbs using householdwater containers. They worked day and night andtheir health began to suffer because of the poorconditions, but they never gave up.Tu and her team did not havesufficient safety data to starttrials on patients.Tu and her team volunteered to test theqinghao
8、 extract on themselves first to speed up theprocess and ensure its safety.3. 学生活动：Ask students to read the news report and writedown the main idea of each part in the chart below.Para. 1Tu Youyou won a Nobel Prize in 2015 for herdiscovery of qinghaosu.Para. 2A brief introduction to Tu Youyous birth
9、andeducation.Para. 3-5To introduce how Tu Youyou and herteam discovered qinghaosu.Para. 6To introduce Tu Youyous achievement andinfluence.4. 学生活动：Have students finish A3 on page 46.（1）What qualities did Tu Youyou show as a scientist? Use details from the newsreport to support your ideas.She is well-
10、educated. She has a broad knowledge of both traditional Chinesemedicine and Western medicine, which has proved useful in her research. Sheis a determined person. She and her team didnt give up even after 190 failures.They worked day and night and their health began to suffer. She is prepared tomake
11、big sacrifices for science. When there was insufficient data for trials, Tuand her team volunteered to test the qinghao extract on themselves.（2）Tu Youyou is the first Chinese female scientist to win a Nobel Prize. In youropinion, what is the significance of this achievement?This has shown the impor
12、tance of traditional Chinese medicine. Qinghaosu,as the key substance in many malaria medicines, has saved countless lives.Tu Youyous achievement has earned international recognition of traditionalChinese medicine. As a female scientist, Tu has also inspired young femalescientists to work harder to
13、achieve their dreams.三、After-reading1. 教师活动：Have students finish B1 on page 47.参考答案：(1) referred to (2) pay off (3) intended (4) experiments (5) limited (6) broad (7) wisdom (8) sufficient2. 教师活动：让学生思考并回答下列问题：In her Nobel Lecture, Tu Youyou encouraged scientists to further explore the treasurehouse
14、of traditional Chinese medicine and raise it to a higher level. What significantrole has traditional Chinese medicine played in Tu Youyous success?Possible answerFirstly, Tu Youyous educational background-a broad knowledge of bothtraditional Chinese medicine and Western medicine enabled her to find
15、a cure formalaria from different perspectives.Secondly, abundant traditional Chinese medical recipes gave her plenty of choices.Thirdly, traditional Chinese medical classics inspired her. An over 1, 600-year-oldtext inspired Tu to extract qinghao at a low temperature in order not to damage itseffective part.四、Summary 总结课上所学，梳理文章结构。作业布置：学生写一篇文章介绍自己所了解的屠呦呦的相关事迹。
