1、英語微課教學設計一.教材分析1.教學內容本單元的中心話題是“克隆”， 學生通過討論和閱讀有關 克隆的內容，了解克隆的含義、克隆的技術發展、克隆對 人類帶來的好處以及人類對克隆這一問題的爭議。閱讀部分介紹了植物與動物克隆的區別、多莉羊的誕生與死亡以及由此引發的爭論。 幫助學生進一步認識克隆的意義在于 解決醫學上的難題，為人類服務。1.教材處理本科結合教材的實際對教材內容、編排順序等進行了調 整、刪除和補充，把閱讀前、閱讀中和閱讀后三部分有機 整和起來。(1)導入新穎，激發興趣。“讀前階段”通過圖片導入的 形式，激活學生大腦中的圖式。同時，結合標題預測，使 學生對即將閱讀的內容有一定的預測，激發閱

2、讀興趣。(2)循序漸進、創意安排。“讀中階段”引導學生進行語 篇的整體感知，了解課文的概況；培養學生同義轉換及歸 納概括的能力。(3)適度拓展、開發思維。“讀后階段”拓展學生的發散 性思維，在訓練學生閱讀技能的基礎上了解克隆這門生物 技術以及有關的爭議。二.teaching goals（教學目標）1.target language（目標語言）a.important words and expressionsclone, commercial, producer, undertake, arbitrary, object,forbid, accumulate, cast down, object

3、 to, the media, in favourofb.important sentences1）but at last the determination andpatience of the scientists paid off in1996 with abreakthrough-the cloning of dolly the sheep.2）altogether dolly lived six and a half years, half thelength of the life of the original sheep.3） the fact that she seemed

4、to develop normallywas very encouraging.4） then came the disturbing news that dolly hadbecome seriously ill.2.ability goals（能力目標）enable the students to describe cloning: what is the advantagesof cloning? what is the problems or dangers of cloning? what isyour opinion of cloning?3.learning ability go

5、als（學能目標）help the students learn how to describe cloning.how to describe cloning.四.teaching difficulthelp the students analyze the writing techniques article.五.teaching methods（教學方法）skimming, task-based method and debate method.六.teaching aids（教具準備）a recorder, a projector and some slides.teaching pr

6、ocedures & ways stepilead-in設計意圖導入部分由兩個步驟組成：1.首先讓學生觀看有關克隆動物和植物的圖片。通過圖片，學生們立刻領悟了本課的主題，并帶著興趣開始觀看。2.學生在體驗中產生探究的興趣后，為了啟發學生思考，設計了四個問題，以激發學生的思維。teacher:in pairs, look at these pictures anddiscuss which ones are natural clones and whichones are man-made. think about how theyteaching important points（教學

7、重點）（教學難點）of thediffer.student:I think the twins and a strawberry plantare natural clones; the dolly sheep and growing new plantsare man-made.after several minutes, teacher ask some questions andlet students answer these questions.teacher: 1. dolly the sheep. Its the mostfamous sheep in the world. do

8、 you know how dolly isdifferent from other sheep?student:she was cloned while the others were bornnaturally. it is the copy of another sheep.teacher:2. what can you see in the picture?student:I can see a strawberry plant producingrunners in a natural form of cloning.teacher: 3. who cut the stem off

9、the plant?student:a gardener. and the gardener is goingto put it into a pot to produce another plant.he is actually making a copy of the plant.teacher: 4.what do you know about twins?student:there are twins of the same sex andthose of different sexes. the twins here areidentical in sex and appearanc

10、e and are goodexamples of natural clones. they carry the same geneticinformation. the fertilized egg hassplit into two while inside the mother, and so produced twoidentical human babies.step ii pre-reading設計意圖通過閱讀文章標題，引導學生對課文內容進行預測，調動學 生已有的背景知識，使其產生閱讀的興趣，快速進入閱讀狀 態。然后讓學生通過快速閱讀來驗證自己的預測，使自身處 于一種主動認知的狀態

11、。before class, ask the students to search forsome information about this topic. now show myquestions on the screen, and then let them discuss with each other.questions about cloning:1. what is a clone?2. how is a clone produced?3. what benefits can humans gain from cloning?4. what problems may arise

12、 when humans are cloned? suggestanswers:1. a clone is an animal or plant produced naturallyor artificially from the cells of another animal orplant and is exactly the same as it.2. the cloning of plants is simple and relativity easy. it can bedone by taking cuttings (man-made cloning) or letting the

13、 plantproduce its own runners (natural cloning). the cloning of animalsis more complicated.it was not achieved until 1996 and is fully explained in the firstreading.3. 1) medical cloning can help cure serious illnesses that ruinones quality of life (such as parkinsons disease帕金森癥oralzheimers disease

14、老年癡呆 癥).2) it can help infertile people have babies.4. 1) people may want to clone themselves so they canlive forever.2) people may want to clone dead children.3) people may want to clone their favorite pets.step iii while-readingteacher:now lets listen to the tape. then iwill give you 20 minutes to

15、 read this passageagain. while reading , you should finish the following threetasks.task 1summarize the main idea of each paragraph.設計意圖學生通過略讀本文，快速找出每段的主題句，從整體上把握 文章內容，不但了解此類型文章的篇章結構，學習此類型文 章的寫作，而且便于下一步查讀。para 1. cloning is a way of making an exact copy of another animaland plant.para 2. cloning has

16、 two major uses.para 3. the birth and death of dolly.para 4. the effect of dolly.para 5. it is forbidden to clone human beings.task 2read the text carefully and fill in theblanks.設計意圖學生個人先通過查讀，快速找到特定信息，然后小組組員之 間交流各自的答案，有疑義的地方，經過討論，最終確定答 案。這不僅讓學生了解文章的具體內容，而且培養學生閱讀 的能力和互幫互助的團隊合作精神。 cloning is a way of

17、 making an exact copy ofanother animal and plant.gardeners use it to produce commercialof quantities of plants.it is valuable for research on new plant species and formedical research on animals.encouraging news: dolly seemed todevelop normally. disturbing news: dolly lived only six and ahalf years,

18、 half the length of the life ofthe original sheep, because of serious illnesses which weremore appropriate to amuch olderanimal.definitionmajor usescloningabout dollythe sheepdiffere ntopinions oncloning evil leaders hoped to clone themselves to attain theirambitions.religious leaders raisedmoral qu

19、estions. some governments forbade research into human cloningbut other countries like china and the uk, continued toaccumulate of theabundant evidence medical aid that cloning could provide.task 3 choose the best answer.設計意圖在閱讀的過程中，讓學生結合文章對這些問題進行 思考。一方面，可以培養學生的綜合閱讀能力，另一方面， 加強學生對文章的進一步理解。1) . the mai

20、n idea of the textis_a.animal cloning is very valuable and can benefit theworld.b. animal cloning could be misused by bad peopleso it must be forbiddenc.animal cloning is well developed because dolly the sheep wasborn.d.animal cloning raised arguments andscientists are not sure about its future.2)_.

21、is used in the procedure for cloning dollythe sheep.a. the nucleus of sheep ab. the somatic cell of sheep ac.the nucleus of sheep bd. the embryo of sheep c3)_. the cloning of dolly the sheep succeeded because.a. its easier to clone a sheep than otheranimalsb.the scientists weredetermined and worked

22、hard with patiencec. the scientists were rewarded and got lots ofmoneyd. many other attempts to clone mammals failed4) . the lamb is the clone of the cell from sheepcellb. it gives birth to thelambc. i t provides the nucleusd. it isa female sheep5)- . dolly the sheep.a. looked exactly like the sheep

23、 that provides the eggb. was the exact copy of the sheep that provides the nucleus13c. looked like the sheep that gave birth to itd. had the characteristics of all three sheep6) . it can be inferred from the passage that a clonedanimal- .a. usually lives as long as the original oneb. usually lives l

24、onger than the original onec.usually dies earlier than the original oned. is usually as healthy as the original one7) . which of the following is wrong?a. cloned people would live forever.b. cloned people may be killed at will for medicalc. a woman would have difficulty recognizing her real husband.

25、d.men will die out because a woman can give birth toa baby without a husband8). the sheep that donated the somatic cell mostprobably lived_years.a. 3b. 6c. 12d.9) . which of the following is not an advantage ofcloning?a. cloning can be used for medical purposes.aid.b. large quantities of food can be

26、 produced by cloning.c.famous persons who have passed away can be cloned.d. cloning can help keep animals from becoming extinct.10). in the second paragraph, the word“ straightforward”means_.a. uncomplicatedb. honestc.frankd. difficultstepivpost-reading設計意圖學生已經通過略讀、查讀和細讀，抓住了文章脈絡，理解了 文章內容。在此基礎上，要求更深一

27、步理解文章，因此設計了幾道習題，進一步培養和考察學生的閱讀理解能力。exercise 1 the following statements are about cloning. read themand decide if they are true or false. write the letter“t”if thestatement is true. write“f”if it is false.1) . cloning means making a copy of an animal or aplant.(f)2) . gardeners can make a lot of money

28、 by cloningplants.(t)3) . cloning animals is as complicated as cloningplants.(f)4) . dolly the sheep was the first successful clone ofa mammal. (t)5) . natural clones happen in animals as well as inplants.(t)exercise 2 read the passage again and answer these questions.1) . what are the two major use

29、s of cloning?2) . why is it easier to make commercial plant clonesthan animal clones?3) . what was the first clone from an adult animal? atwhat age did this clone die?4) . why is cloning controversial in some countries?stepvlanguage points設計意圖使學生理解和掌握一些重點詞匯的用法，進一步培養使用英 語語言的能力，并加深對文章的理解。1. identicaladj.(常與with連用)完全相同的eg. these two designs are almost identical.my opinion is identical with his.allow sb to do sth允許某人做某事還有“同