Unit 3 Fit for life Reading (II)（教学设计） I. Learning objectives By the end of the lesson, students will be able to: 1. understand the usage of the following words and expressions: affect, contract, identify, means, restore, pace, arise, restrict, prohibit, wrestle with, put sth in place and without doubt; 2. use the above words and expressions in new situations; 3. understand usage of the suffixes like -(t)ics, -(o)logy, -(t)ic, -al, -ist, -ian; 4. make sentences using “as”. II. Key competence focus 1. Understand some new words and expressions. 2. Use the above-mentioned new words and expressions in new contexts. III. Predicted area of difficulty Use the new words and expressions in a proper and correct way. IV. Teaching procedures Step 1 Lead-in Review the main idea of the lecture. T: Hello, everyone, nice to meet you! We’ve learned a lecture given by a biologist about the new possibilities that gene research can bring. Today we shall review the lecture, discuss how to use some of the words and phrases, and practice using them in different situations. T: Would you fill in the blanks according to what you have learned Complete the passage with proper words or the correct forms of the words in brackets. 1. _____ is known to all, genome editing brings many exciting possibilities to the world. Genes play 2. _____ critical role in shaping our lives. Our personal genome carries all the information 3. _____ (need) to make us grow and develop. Also it contains information 4. _____ helps determine our lifespan and 5. _____ (affect) our chances of contracting certain diseases. By correcting, adding, deleting or replacing specific parts of the genetic material, 6. _____ (gene) hope to apply the technology of genome editing to help with 7. _____ disease treatment and prevention. 8. _____, questions arise about how to use genome editing 9. _____ (appropriate). 10. _____ the public argument, genome editing is one of the greatest innovations in the history of science. 【设计意图：通过引导学生完成篇章的语法填空，一方面可以让学生回归课本，巩固所学内容，另一方面也可以将学生引领到词汇学习上面来。】 Step 2 Language comprehension and extension 1. Word study: affect T introduces the meanings of affect through different situations. T: Look at the sentence from paragraph 2. What’s the meaning of affect here T: It means “to produce a change in sb/sth”. Think about the situation: if a child grows up in an unhappy family, what will happen to the child Can you translate the sentence: 不幸的家庭环境可能会影响孩子的成长 T: What’s the meaning of affect in these two sentences At the sight of the moving scene, all the people present were affected to tears. He affected not to see me. 2. Word study: contract T introduces the meanings of contract through different situations. T: In this lecture, contract is a verb that means “to get an illness”. However, it can also means “to make a legal agreement” and “to become less or smaller” when it is used in other situatio ... ...
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