牛津译林版高中英语必修5Unit 3Science versus natureWelcome to the unit教案3.docx

1、牛津译林版高中英语必修5Unit 3Science versus natureWelcome to the unit教案3课 题Unit 3 Science versus nature课时9-1Welcome主备人授 课 时 间教 学 目 标Enable the students to know something about cloning, and give their own opinions about cloning.Help the students learn how to describe the advantages and disadvantages of human cl

2、oning with the target language. 教学重、难点Talk about cloning and human cloning. How to describe the advantages and disadvantages of human cloning.教、 学 具A projector.预 习 要 求教师活动内容、方式学生活动内容、方式旁 注Step I Lead-inWalk into the classroom with a sad face. T: Good morning, class.Ss: Good morning, Miss Wang. T：Wha

3、ts clone?S1:Cloning is one of the most popular technologies in the 20th century. T：What other technologies do we have in recent years?S: Maybe the most influential technology is computer science, which has contributed a lot to our society in many fields. Now, for most of us, we cant live without com

4、puters.T: You are right. Just now you mentioned cloning. Now lets see some pictures.Show the pictures on the textbook on the screen.Step II Welcome to the unitT: Here are six pictures. They are all clones. Maybe all of you are familiar with Dolly, arent you?Ss: Yeah.T: Where and when was Dolly born?

5、 Is she still alive? Who can give us some information about Dolly?S: Dolly the sheep was born on February 24, 1997 in Edinburgh Scotland. She was cloned from a cell of another sheep. Dolly died in February, 2003, after developing a progressive lung disease.Step III DiscussionDeal with the questions

6、in activity F.Several minutes later, ask some pairs to demonstrate their conversations. We cant attempt to change something in the nature, or well be punished! So we should try our best to build a society in harmony with nature instead of against nature. Step IV Homework Preview the text on P42.Sear

7、ch the Internet for information about cloning课 题Unit 3 Science versus nature课时9-2Reading主备人授 课 时 间教 学 目 标Enable the students to learn different opinions on cloning. Help the students to learn how to understand scientific terms and analyze the passage according to the reading strategy. 教学重、难点How to u

8、nderstand the writers point of view. How to understand the scientific terms.教、 学 具A tape recorder, a projector and a computer. 预习要求workbook教师活动内容、方式学生活动内容、方式旁 注Step I RevisionCheck the homework: Ask some students to share their information about cloning found on the Internet.Step II Lead-inT: Good.

9、I think you really did a lot of work after class. Thank you very much. Today I would like to introduce a famous guy to you first. Look at the screen please.Show a picture of Frankenstein monster on the screen.Step III Pre-readingIn this procedure, students will do fast reading and answer the questio

10、ns in activity A. After 2 minutes, ask students to report their answers.Suggested answer:1. The article gives both the anti- and pro-cloning point of view.2. Its name was Dolly.3. Obviously she is anti-cloning.Step IV SkimmingIn this procedure, encourage the students to develop their predictive skil

11、l by reading the beginning and the ending to guess as much as they can about the passage and understand the meaning of the text as a whole.Step V ScanningWhile scanning, the teacher should play the tape for the students. The students check their predictions and build an outline of the text in their

12、minds.After 3 minutes, check the answers. Ask several students to tell the main idea of each paragraph.Then show the following.ParagraphMain ideaPara 1An announcement about human embryo cloning which has caused much debatePara 2Explain cloning as a wonderful scientific breakthrough and give the exam

13、ple of DollyPara 3Dollys creators opinion about human cloningPara 4A saleswoman supports cloning very much for her personal purpose.Para 5Some scientists are pushing ahead with the research to clone human. Para 6The achievements of China on cloning.3 minutes later, check the answer. T: Now look at a

14、ctivity C2, find the reasons why people are pro- or anti-cloning in the article and letters. Suggested answers:Pro-cloning Anti-cloning 1. Produce valuable tissues and organs that could be used to save human lives. 1. May produce a real-life Frankensteins monster.2. Create new tissues and organs tha

15、t could be used to cure diseases like cancer.2. Could create more diseases in the animal world.3. Its a wonderful scientific breakthrough3. Its immoral and shows no respect for human life.4. Those who cannot have baby can have a cloned baby. 4. Could one day end up replacing human beings.5. The huma

16、n race is using up Earths resources.T: Now Im sure you have got an idea of the terms you dont understand at first, havent you? Now lets do activity D. Step VIII HomeworkAfter class, please 1. review the text2. retell the reasons for pro- and anti-cloning in your own words3. finish activity B1 on Pag

17、e 107课 题Unit 3 Science versus nature课时9-3Vocabulary主备人授 课 时 间教 学 目 标Help the students learn how to guess the meanings of words by looking at their prefixes and suffixes.Enable the students to understand the meanings of some prefixes and suffixes and learn the organs of human body.教学重、难点Learn word fo

18、rmation with prefixes and suffixes. How to use these prefixes and suffixes. 教、 学 具A slide and a computer.预 习 要 求教师活动内容、方式学生活动内容、方式旁 注Step I RevisionCheck the answers to activity B1 on Page 107.From the exercise, we know that a word or a phrase can have several different meanings, and there are many

19、words like them in English language, so we have to learn to use the English-English dictionary to study English. We should learn to paraphrase some words and sentences, namely, we should use English to explain English. Ask several students to retell the reasons. Step II Lead-inT: We talked about clo

20、ning yesterday and you all expressed your opinions about it. We know cloning technology is one of the scientific achievements. Now pay attention to the two words. Who can tell me how the two words are formed?Write “scientific achievement” on the Bb.S1: “Scientific” is the adjective form of “science”

21、.S2: “Achievement” is the noun form of “achieve”.Step III Prefixes and suffixesT: Now. Ill show you some prefixes and suffixes. Look at the screen please.In the period, students should try their best to grasp the meanings of prefixes and suffixes showed on the screen according to the teachers explan

22、ation.PrefixExampleMeaninganti-anti-cloningagainst, oppose todis-disappearnot, opposite ofin-incorrectnot, withoutil-illegalim-immoralir-irresponsiblepre-previewearly, beforepro-pro-cloningin favor of supportingre-recreateagainstun-unfairnot, opposite ofco-co-operationtogether, do togetherde-decreas

23、ereducemis-misunderstand bad wrong nottrans-transportacross beyond into another placetele-telephoneover a long distancefore-foretellbefore in advance of ex-ex-wifeformersub-subwayunderover-overworktoo muchunder-undergroundbelowinter-internationalbetweenSuffixExampleMeaning-ablecomfortableworthy of,

24、able to do-fulcheerfulfull of, characterized by -istscientistsomeone who does something-lesshopelesswithout-mentagreementindicate a state or condition-nessdrynessindicate a quality state or character-eeemployeeperson affected by-erteacherperson or thing that does-ationtransportationaction or conditi

25、on of-ishfoolishSwedishlanguage or people of the nationality of-iveactiveexplosiveconnectivehaving the qualities or quality of-ousdangerouspoisonousglorioushaving the qualities or character of-shipownershipleadershipprofessorshipstatus, office, profession-wardhomewardtowardsin the direction ofStep V

26、 HomeworkT: If you are interested, you can find out the names of other major parts of the body from your biology teacher and then check their names in your dictionary. Homework for today: Finish activities A1 and B2 in your Workbook.课 题Unit 3 Science versus nature课时9-4Grammar主备人授 课 时 间教 学 目 标Help st

27、udents learn how to rewrite sentences using verb-eds. Learn the usages of verb-ed form.教学重、难点Learn the differences between verb-ed and verb-ing used as adjectives.教、 学 具A projector and some slides.预习要求workbook教师活动内容、方式学生活动内容、方式旁 注Step I GrammarIn this procedure, give some explanation about the usage

28、s of the verb-ed form and ask students to analyze some sentences to consolidate.1. A verb-ed form is used as attribute in front of a noun or behind a noun, which can be replaced by an attributive clause.e.g. If I had a chance, I would have a cloned baby.If I had a chance, I would have a baby who is

29、cloned. 2. A verb-ed form is used as predictive to express the state of the subject.e.g. I was pleased at the news.The door remained locked.3. A verb-ed form is used as object complement.过去分词可以在see, hear, notice, watch, keep, find, get, have, feel, want等动词后与名词（代词）构成复合宾语。e.g. She found the door locke

30、d. Hes going to have his hair cut.4. A verb-ed phrase is used as adverbial modifier to express:she wrote a letter to the newspaper.c. 条件e.g. Given more time, we could do it much better.If we were given more time, we could do it much better.d. 让步e.g. Beaten by the opposite team, the players were not discouraged.Though the players were beaten by the opposite team, they were not discouraged.e. 伴随e.g. She turned away, disappointed. (过去分词可以单独充当状语)Show the following on the screen. 1. We use verb-ing to express the active voice while we use verb-e