UNIT 9　Period Ⅰ　TOPIC TALK & LESSON 1（word教参）-【优化探究】2021-2022学年新教材高中英语选择性必修第三册配套教参（北师大版）

[参考范文] Finally,_after_struggling_for_a_minute_or_two,_I_still_got_pulled_underwater. I told myself I should never give up.Then I pulled the weed again with great efforts.The weed finally broke.I swam back to the surface.I saw two young men in canoes racing.I shouted for help.They saw me and raced towards me.By the time they reached me, I had been already unconscious. When_I_woke_up,_I_was_in_an_empty_room_lying_on_a_bed. Jimmy and Bobby told me the two young men brought me to the shore and sent me to the hospital.After a few minutes, my parents with half angry and half worried faces walked in.My parents scolded me for running out of the house secretly but were also glad that I was not seriously injured.I will never forget that terrifying experience.Neither will I ever want to show off again. 授课提示：对应学生用书第63页 导语：随着科学技术的发展，基因以及基因科技对人类的影响是积极而深刻的。减少基因技术的危害，实现伦理对基因技术的导向作用，使之更好地为人类造福。 Among all the fast growing science and technology, the research of human genes, or biological engineering as people call it, is drawing more and more attention now. Sometimes it is a hot topic discussed by people. The greatest thing that gene technology can do is to cure serious diseases that doctors at present can almost do nothing with, such as cancer and heart disease. Every year, millions of people are murdered by these two killers. And to date, doctors have not found an effective way to cure them. But if the gene technology is applied, not only these two diseases can be cured completely, bringing happiness and more living days to the patients, but also the great amount of money people spend on curing their diseases can be saved, therefore it benefits the economy as well. In addition, human lifespan can be prolonged. Gene technology can help people to give birth to more healthy and clever children. Some families, with the English imperial family being a good example, have hereditary diseases. This means their children will for sure have the family disease, which is a great trouble for th