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北师大版高二下Unit21《Human Biology》(Lesson 1)ppt课件2

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Unit 21 – Lesson1-1 Super Athletes 100 metres in 8 seconds Reading &Vocabulary In this period, you will able to 1. practise getting the general idea in fast reading; 2. identify the main ideas of the paragraphs; 3. find and organize specific information in the text; 4. practise talking briefly about the text; 5. learn some new words and phrases. Task 1 Fast Reading 1. Read the text quickly .What is the general idea? a) The athletes who took part in the first Olympic Games are not as fast as athletes today. b) Doping is a huge problem in the sporting world. c) The present and future of the sporting world is being seriously and negatively affected by doping and gene-therapy. d) Ben Johnson, Florence Griffith and Floyd Landis have all shocked the world by their speed. Word Bank doping in sports Word Bank Gene therapy --treatment Gene therapy is the introduction of genetic material into cells for medical purposes. Task 1 Fast Reading 2. Find out main ideas to each part. Records have fallen . Paragraphs1-2 —————————— Doping and gene-therapy Paragraphs 3-7 —————————————. Olympic spirit Paragraphs 8 _____________. Task 2 Careful Reading 1. Decide the following sentences “True or False” 1) As athletic performances have continually improved, records have risen . 2) Ben Johnson was still be the 100 meters world record holder because he had taken drugs in the 1988 Olympics. Task 2 Careful reading 3) Doping can help athletes enhance their performance, however, the drugs also cause serious health problems in later life for those who abuse them. 4)Doping is only a problem in athletics. 5)The Olympic spirit of competition emphasizes winning rather than taking part . Word Bank China plans to enhance the public's awareness of environmental protection. Physical activities can enhance _______ our memory ability and sleep quality. Word Bank abuse children abuse animals abuse drugs Task 2 Careful reading 2. Answer the following questions. 1) What reasons are given for improved performance? (para.2) Better equipment, training and diet. Task 2 Careful reading 2) What is doping and why is it illegal? (Paras 3-4) ________________ Taking the drugs (which are originally developed to ______________________, in the wrong help people but with illnesses hands ,they can make athletes _______________) is known as “doping” . and stronger faster It is illegal because ____________________________. it is a fundamental form of cheating Task 2 Careful



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