Unit 3《Science versus nature》-reading教案1(牛津译林版必修5)

Reading (1)Teaching objectives:1.To reinforce students’ comprehension of the text and improve their other skills by participating in all the activities.2.To help students know the widespread discussion about cloning and hold their own attitudes towards it.3.To enable students to master the reading strategy and become more competent in reading articles related to science.Teaching focus and difficulties:1. Students can work out the meaning of difficult or unfamiliar scientific terms with reading strategy.2. Students can hold their own opinions on the base of reading the article.Teaching aids:The multimediaBrief teaching procedures:Step1 Lead- inCheck the homework. Encourage students to share their sources relevant to cloning technology with the whole class. Tell students that cloning has been the subject of scientific experiments for years. The recent success in cloning animals has resulted in fierce debates between scientists, politicians and public.Step2 Reading strategyGet students to go through the reading strategy, and make sure that everyone of themAsk students to refer to the reading passage and find out the main idea.(The reading passage is made up of a newspaper article about cloning and two readers’ letters. We will be given information about how cloning is being researched and the different attitudes towards it.)Step4 Second reading—Understanding scientific termsAsk students to circle the unfamiliar words or things they do not understand while second reading. (For example: embryo, tissues and organs, interfere with nature, etc)Step5 Third reading—Detailed informationAsk students to read only the article carefully, and finish the following exercises:1. What are the different attitudes towards the success of cloning a human embryo?On the one hand (valuable tissues and organs can be produced and be used to save human lives) On the other hand (human beings may be on the way to producing a real-life monster)Some people consider that (cloning human embryos with the intention to destroy them shows norespect for human life.)Pauline Carter thinks:1. the nature will pay back if we interfere with nature. ( T )2. we should clone fewer babies to reduce E arth’s population. ( F )3. the lady who cannot have a baby can adopt an orphan, but not have a cloned baby. ( T ) Coline Jake thinks:1. the news that the first human embryo has be cloned successfully is very terrible. ( F )2. scientists have succeeded in challenging questions of morality. ( F )3. human cloning is a good way to save her daughter who has died. ( F )Step6 Further discussionUnderstanding the scientific terms and reinforcing the comprehension of the text, students are got to form groups of four or six to discuss the further questions:1. Find the reasons why people are pro- or anti-cloning in the article and letters and write them2. Do you think it would be easy for the cloned baby to accept his/ her social identity as a‘cloned’ human being?3. What would the person that had the original cell feel about the cloned baby?4. Think about the relationship between the title of the unit Science versus nature and cloning technology.Step7 HomeworkThink about the difficult scientific terms underlined before up on the text learningReading (2)—Language Points1. A recent announcement by scientists that they have successfully cloned the first human embryo…announcement (n.) 宣告，通知，声明(短语)make/ issue an announcement 发表声明announce（vt.）宣告，通知，声明(短语) announce sth. to sb. (不能用announce sb. sth.)(比较) announce/ declareannounce 指对公众或特定的一群关心的人进行宣布；declare指官方的正式宣告Everyone was silent as he announced the winner of the competition.This powerful country declared war on that small country.2. On the one hand, some scientists point out that if you clone an embryo, you can …①on (the) one hand…on the other hand…一方面…另一方面…（单独使用on the other hand时，hand不能省略，但与on the one hand连用时，可省略）On one hand, rapid development of the economy will improve the living conditions of the people. On the other hand, it will speed up environmental destruction.(短语) at hand 在手边，在附近by hand 亲手，手工in hand 手头现有的，正在进行，在处理中hand in hand手拉手Hands off! 请勿动手！不许干涉Hands up! 举起手来！②point out 指出He pointed out my mistake. 他指出我的错误。

point to/point at 指着，指向某人或某物（两个词组可互换使用）He pointed at/ to a picture.point at 对准，瞄准(某人用枪对准某人某物等)They pointed at her head but she was not afraid.point to 表明，指向(主语为证据、时针以及宾语为某一方向时)The evidence points to him as the criminal.The hands of the clock pointed to half past three.The compass needle points to the north.3. …they may be on their way to producing a real-life Frankensrein’s monster.on one’s (the) way to doing sth. “正在做某事的过程中”. to是介词，后接名词、代词或动名词短语(练习) I’ve just heard a warning ______ the radio that a storm may be ______ its way.a. on, onb. over, inc. on, aboved. from, on(短语) on one’s (the) way to 在去…的途中by the way 顺便问问，顺便说说by way of 途经in a way 在某种意义上，在某种程度上in one’s (the) way 挡路in this way 用这种方式4. However, in general the scientists were praised for their wonderful scientific breakthrough.①in general 一般说来，从总体上看，大体上In general, red is the most popular colour this season.(短语) in a general way 一般，通常as a general rule 在一般情况下②praise (vi.&vt.&n.)表扬，赞扬，表彰(短语)win high praise 受到高度赞扬in praise of 赞扬（某人）beyond all praises 赞美不尽的，赞不绝口的be loud in sb.’s prai se 对某人极力称赞praise sb. for sth. 因某事而赞美/称赞某人（练习）He gave a speech in praise of school life.他做了一个赞美学校生活的演讲。