2015年(人教版)高二英语上册全册教案

Unit 1 That must be a recordGoals:Talk about records, adventures a n d hobbiesPractise measuring and comparingReview the SubjectFill in a formThe First Period Listening & SpeakingTeaching goals:1. Target Languagea. key words: beard, voyager, tight, tightrope, edition, moustacheb. daily EnglishPractise expressing measuring and comparing.2. Ability goalsEnable students to talk about records, adventures and hobbies.Help them learn to express measuring and comparing.Teaching important points:Talk about records, adventures and hobbies.Practise expressing measuring and comparing.Learn to use some typical measurements.Teaching difficult points:How to use measurements correctly.Teaching methods:discussing (cooperative learning),listening, speakingTeaching aids:a tape recorder, a projector and a computerTeaching procedures:Step I Lead-inAs most of the Senior Grade III students start school in August, the weather must be very hot. The teacher may start the class with the following question. “What is the highest temperature recorded this summer?” Then lead students to do the quiz about the amazing facts on Page1.T: Good morning/ afternoon, everyone!Ss: Good morning/ afternoon, Mr. / Ms…T: It is very hot, what is the temperature?S1: It is reported the highest temperature is 35°C.T: Is it the hottest day recoded this summer?S2: I don’t think so. It was much hotter on July 26. The temperature was 37°C on that day.T: Good. I’m very glad you are careful about this. But do you know the lowest temperature recorded on earth? (Show the questions on Page 1on the PowerPoint.) Please work in groups and try to find the amazing facts.Step II Warming upStudents will work in groups to decide the answers. Whether they can guess the answers or not isnot important. The aim of this quiz is to stimulate their interest. Two minutes later show the answers on the PowerPoint. ( Suggested answers: BBAABB )T: Ok. It doesn’t matter whether you guessed the answers or not. How do you find the questions?Ss: Very interesting.T: Do you know where to find the answers to such interesting questions?Ss: The Guinness Book of World Records.T: Yes, it is a book contains records of all kinds. After class please find more information in the book in the library. In this class we are going to practise measuring and comparing. First look at some typical measurements. Ok, please read after me.Show the following on the PowerPoint.(m=meters cm=centimeters h=hours)Height of people (When referring to people, “tall” is used, not“ high”, and measurements are given in feet and inches (but not yards) or meters and centimeters.She is about 5foot 6 tall.The world’s tallest man is 2.55m.Speed A speed limit of 30 mphSound travels 186,300 miles in a secondMeasurement of TemperatureThe normal temperature of the human body is 37°CThe lowest temperature ever recorded on earth is -89.2°CStep III ListeningIn this procedure, students will hear someone talk about the size and the speed of humans and animals. The purpose of the exercise is to practise measuring and comparing. Before listening, students will discuss the three questions in groups.T: Are you familiar with the measurements?Ss: Yes.T: Ok. How tall are you. Wang Fei?S1: I’m 175cms.T: Then who is the tallest in your class?Ss: Li Lei and he is 184cms tall.T: Then we can say Li Lei is taller than Wang Fei. Do you know how tall Yao Ming is?S2: He is 2.26cms.T: Then among the people we know Yao Ming is the tallest. OK, let’s come to the listening part. You are going to hear someone talk about the size and the speed of humans and animals. Before we listen to the tape, let’s look at the questions on Page 2.Now work in groups and discuss the three questions. You are given five minutes.Five minutes later, check the answers with the whole class. Various answers may be given.T: Well done. That’s your opinion. Now let’s listen to the tape and hear what others say.Play the tape for students to finish the Listening Exercises 2-3 on Page 2. Play the tape again when necessary. Then check the answers with the whole class.StepⅣLanguage Points1. graduate n. v .graduate –graduation graduate from after graduationGraduates with complex knowledge are in great need now.2.advantage n.优势，好处，有利条件take advantage of sb. 利用某人，欺骗某人take advantage of sth. (巧妙地利用某物）have the advantage of / over胜过，占优势3. weigh vt. 称……的重量；掂量；考虑；重若干weight n. –weighty adj. (沉重的）按重量计算by weight 发福put on weight lose weight4. beat / defeat / win5. on earth究竟，到底This is my dog , his name is Wisdom. That is interesting , why ____ did you give him such a name?6.speed 迅速地with great speed 以全速at full / top speed以……的速度at a speed of 加速speed up7. contain /include1) The price includes postage charges. 2) My suitcase contains only a few warm-weather clothes.3) The money I gave you included Tom’s. 4) There are ten of us here, including three girls.5) Everybody has something to say, me included.Step V SpeakingAn interview of the record-breaking tight ropewalker Adili. While students present the interview, the teacher may show the photos to help the others to understand the interview better.T: Besides Yao Ming, we have another celebrity (名人). Who is it? (Show the picture of Adili on the powerpiont)S1: Adili, a tight ropewalker.T: Who would like to say something about him?S2: He was born in Xinjiang in 1971.S3: He has a lovely daughter.S4: He is famous as the record -breaking tight ropewalker.S5: His name is in the Guinness Book.T: Now Adili is visiting our city and you are going to interview him for the school newspaper. Please don’t forget to refer to the information on Page 3. Work in pairs and 5 minutes later I will ask some of you to act it out.A Sample of the interview.A: Adili B: A JournalistB: Adili, glad to meet you and welcome to our city!I’m a school journalist from No 1 Middle School.A: Thank you!B: The students in our school admire you very much. They are eager to learn something about you. May I ask you some questions?A: OK. Thank you and I am willing to be of some help.B: How many years has your family walking on the rope?A: My family has been walking on tightropes for 430 years!B: Wow, so many years! Could you say something about the 2002-year record? How many days did you stay on the high wire?A: In May 2002, I broke a world record by staying on a wire rope for 22 days and beat the 21-day Guinness world record. I walked on the rope up to five hours a day. I spent the rest of the time in a hut at the end of the rope.B: You are very great. I was told you broke some other Guinness world records. Could you say something about your ropewalk across the Three Gorges? How long was the wire? How high was the wire above the ground and how long did the walk take you?A: On June 22, 1997 I crossed the Three Gorges on a high wire, which was 646 meters long, 402meters high and the walk took me 13 minutes 48 seconds. I broke the Guinness world record set by a Canadian.B. We are very proud of you. In October 2000 you broke another Guinness world record when you walked across Mt. Heng. How long was the wire? How high was the wire above the ground and how long did the walk take you?A: When I walked across Mt. Heng, I crossed a wire 1,399 meters long, 436 meters high and I spent52 minutes 13 seconds on it.B.How great! In August 2003 you broke another Guinness world record at Tiankeng. How high was the wire above the ground?A: At Tiankeng, I walked 687 meters, about 662 meters above the ground and beat the 402 meters above the ground record.B. Thank you very much. You have been breaking records. You have been challenging yourself. We should learn from you. Good luck to your future performance.A: Thank you.Ste pⅥ HomeworkSurf on the Internet or use the library to find some information of The Guinness Book of World Records.The Second & Third Periods ReadingTeaching Aims:1. Learn and master the useful words and phrases in this period.2. Train the students’ reading ability.3. Help the students to know more about world records.Teaching Important Points:1. Master the following phrases and sentence pattern.Set down, keep track of, stand out, in the first place, make forImpressive as the record is, it fades next to the story of Armstrong’s struggle against disease.2. Improve the students’ readin g ability.Teaching Difficult Points:1. How to help the students understand the passage better.2. How to help the students understand the sentence pattern better and use it freely.Adj. / adv. / n. + as + Sub. + v. , + main clauseTeaching Methods:1. Scanning the text to learn something about world records.2. Fast and careful reading to get the detailed information in the text.3. Individual, pair or group work to make every student work in class.Teaching Aids:1. the multimedia2. the blackboardTeaching Procedures:StepⅠLead-inIt is very hot today ,i sn’t it ? What is the temperat ure?Is it the hottest day recorded this summer?Do you know the lowest temperature recorded on earth?Do you know where to find the answers to such interesting questions?The Guinness Book of World Records. It is a book containing records of all kind.StepⅡFast ReadingRead the text quickly and grasp the general idea of each paragraph.The text can be divided into four parts:Part 1: (Paragraph 1)How and when the first edition was put out.Part 2: (Paragraph 2-4)The records that can be printed in the book are put into different categories.Part 3: (Paragraph 5)Why people are so interested in world records.Part 4: (Paragraph 6)How the Guinness Book of World Record accepts a world record.Pre-reading Suggested answers on Page 31. He was the then director of the Guinness Brewery, who came up with the idea of writing a book later called the Guinness Book of the World Records.2.In 1955.3.1.6 meters.4. Urumqi is the most remote city from the sea--- it is 2,500kilmeters from the nearest coast. A special and delicious record was set in 1997 to celebrate Hong Kong’s return to China.5. Lance Armstrong.StepⅢListeningListen to the tape and decide which of the foll owing statements are “true” or “false”.1. The Guinness company began to write the Guinness Book of World Records in the 1950s. (F)2. More than 60,000 new records are printed in the book each year. (F)3. An Englishman balanced a small car weighing 159.6 kilograms on his head for 33 seconds.(T)4. Lance Armstrong’s speed record is more impressive than his struggle against his disease. (F)5. The records that are dangerous to the person who is attempting it or to others are not allowed in the book. (T)6. The records in the Guinness Book of World Records are including different areas of people’s life.(T)StepⅣReading Comprehension细枝末节题：1. The idea which led to The Guinness Book of Records came up by _________. (C)A. Ross McWhirterB. NorrisC. Sir Hugh BeaverD. Brewery2. The Guinness Book of World Records has chapters except _________. (A)A. educationB. science and technologyC. travel and transportD. the natural world3. Among the Chinese records in The Guinness Book of Records, some examples are given except _________. (D)A. Tian'anmen SquareB. Hong Kong's return to ChinaC. JiaoziD. the Yellow River4. The reason why Lance Armstrong's records are special is that_________. (D)A. he is a wonderful winnerB. he won the first place in the raceC. he has achieved brilliant achievements D .he fought against cancer bravely and won his goal5. Which type of record attempts is NOT allowed in the following? It is ________. (C)A. the one that a man can live to be very oldB. the one that a man can balance a small car on his headC. the one which is dangerous to the person who is attempting it or to othersD. the one that a man can wear the longest beard in the world主旨大意题6. The text is mainly about _____. (C)A. a famous bookB. Sir Hugh Beaver came up with an ideaC. The Guinness Book of RecordsD. many records in the world推理判断题7. From the sentence “...,it fades next to the story of Armstrong's struggle against disease”, we know that________ . (D)A. his fastest speed is as impressive as his story of struggle against cancerB. his fastest speed is more impressive than his story of struggle against cancerC. his story of struggle against cancer is less impressive than his fastest speedD. his story of struggle against cancer is more impressive than his fastest speed8. From the text, the main reason that led to Sir Hugh's idea is that _________. (C)A. his hard workB. his talentC. his curiosityD. his careful research9. From the last paragraph, we can infer that _________. (D)A. if a person wants to make a record, he can do it without permissionB. if a person can do bad to others, he can make a recordC. if your idea is not suitable, you can also get the permission of the Guinness Book of World Records.D. The Guinness Book of World Records is very careful about making a record10. According to the text, which statement is true? (B)A. No people in the world are not interested in strange and unusual things.B. There are many athletic records in the Guinness Book of World Records.C. There are no Chinese records in the Guinness Book of World Records.D. All of the 60 000 new records will be printed each year.StepⅤLanguage pointsParagraph One:1.In 1951,the then director of the Guinness Brewery, --在1951年，当时吉尼斯啤酒厂的总裁then （作定语）当时的，the then ruler 当时的统治者then (adv.)=at that time(用于过去或将来) He will come back by then.当时的（修饰名词）the then government=the government at that time.那么，因此(位于句首或句末) Then what do you want?固定短语: (every) now and then; from then on; until then; since then2. conclude -----come to an end Vt /Vi (推断出，断定；完成结束）conclusion n.结论，结尾to conclude Compare: come to / draw / reach / arrive at a conclusion得出结论e.g.1) The inquiry concluded that the accident had been caused by human error.推断，断定2) The headmaster concluded the meeting at six o’clock in the afternoon.结束3) To conclude，I wish you a happy New Year. 最后最后，总之in conclusion = lastly In conclusion I’d like to say that you did it very well. Paragraph Two:1. Set down / put down / write downe.g. Set down your heavy bags and have a rest.I will set down the story as it was told to me.The price limits were set down by the government.Other phrases:set aside把……放在一边；留出，拨出set off 出发；引起；使爆炸set out 出发；开始（to do ) set about 开始，着手(doing)set up搭起；树立（榜样）；开办be set in 以…为背景2. keep track of 1) record sth. ; write down 2) keep informed of sb. / sth.e.g. Don’t feel bad if you make a mistake. Keep track of (write down) your mistakes and learn from them.Her mother used to keep track of (write down) every penny she spent.Mr. Stevens kept track of (keep informed of) his business by telephone when he was in hospital.It’s hard to keep track of (maintain contact with) all one’s old school friends.Other phrases:远离，不接近，避开keep off 远离某地keep away from一直做某事keep doing sth / keep on doing sth. 阻止；扣留；忍住keep back记住；想着keep … in mind 保持keep up 跟上keep up with赶上catch up with 守望keep watch 守信keep one’s promise记日记keep a diary 管家keep house 阻止某人做某事keep sb from doing sth.3. reach vt. When will we reach Beijing? (到达)Can you reach me that box? (伸手拿下来) Will you reach me the sugar? (递)reach one’s conscience(打动，影响) 打动良心How can I reach you? (与――取得联系；接触)我怎么和你联系？vi. The woods reach as far as the river. (延伸，达到) 树林一直延伸到河边I can’t reach so high. (伸出手（或脚）)我够不到这么高。

高二英语上册教案教案主题：高二英语上册教案教学目标：1. 通过本教案的教学活动，学生将能够理解和运用高级英语词汇、语法和句型，提高英语听说读写能力。

2. 帮助学生培养批判性思维、合作学习和自主学习的能力，以及跨文化交际和全球意识。

教学重点：1. 解读课文：通过阅读和理解课文，学生能够获取关键信息。

2. 词汇、语法和句型：通过学习和运用高级词汇、语法和句型，学生能够提高语言运用能力。

教学准备：1. 教材：高二英语上册教材，包括课文、词汇、语法和句型部分。

2. 音频材料：课文的录音和相关听力材料。

3. 多媒体设备：投影仪或电脑，用于呈现教案所需的图片、视频等辅助材料。

4. 学生练习册：提供给学生进行练习和巩固所学内容。

教学过程：一、导入（5分钟）1. 通过展示一张图片或播放一段与话题相关的视频，引起学生的兴趣和注意力。

2. 导入相关话题，鼓励学生进行讨论和思考，引出本课的主题。

二、课文阅读与理解（20分钟）1. 学生独立阅读课文，并回答与课文内容相关的问题。

2. 学生进行小组讨论，分享他们的答案和理解。

3. 教师与学生一起回顾、讨论和总结课文的关键信息。

三、词汇、语法和句型讲解（15分钟）1. 教师通过逐个解释和示范的方式，讲解本课所涉及的高级词汇、语法和句型。

2. 学生进行个别或小组练习，巩固所学的词汇、语法和句型。

四、听力训练（15分钟）1. 学生听取与课文内容相关的听力材料，并回答相关问题。

2. 学生与同伴进行听力对练，提高听力和口语表达能力。

五、任务型活动（20分钟）1. 学生根据所学的知识和技巧，完成一个任务，如写一篇短文、制作海报等。

2. 学生展示和交流他们的作品，通过合作学习和互动，提高表达能力和批判性思维。

六、作业布置（5分钟）1. 教师布置课后作业，包括阅读、写作或其他相关练习，巩固所学的知识和技能。

2. 学生提问和教师解答学生的疑问。

教学反思：教案编写的教学过程可根据教师的实际教学情况进行适当调整。

高二英语上册全册教案3课件www.5y StepⅢwhilereading.ScanningGetthestudentstocomprehendthewholescenequicklyandac curatelyandmeanwhilehelpthemformagoodhabitofreading .Givethestudentssometimetoreadthroughthescenesandth enanswersomequestionsa.HowdidHenryAdamscometoEngland?b.wheredidHenryworkbefore?Howmuchdidhehave?c.whatdidthetwogentlemengiveHenry?d.whencanHenryopentheletter.2. Afterthestudentsdiscussthequestionsandthenchecktheanswerswiththewholeclass.T:Listentothetapeandtrytofindoutthecharacteristicso fthewholepassage.Ss:Thisispartofaplay.So,thenarrationiswritteninthep resenttense.T:ok.Allofyouhavedoneagoodjob.Next,let’sreadthesceneagainanddosomeexercises.StepⅣPost-readingDocomprehendingexercisesandexplain:a.alargeamountof:alargequantityof;agreatdealofe.g.Theyboughtalargeamountoffurniturebeforetheymove dtheirnewhouse.b.makeabet:makeanarrangementtoriskmoney,etc.onanevent ofwhichtheresultisdoubtful.e.g.wemadeabetontheresultofthematch.c.permitsbtodosomething:allowsomebodytodosomethinge.g.mymotherdoesn’tpermitmetorideinthestreetafteritrained.d.byaccident:asaresultofchancee.g.Ionlyfounditbyaccident.e.stareat:lookatsomebodyorsomethingwiththeeyeswideope ninafixedgazef.tobehonest:totellyouthetruth;tobefranke.g.Tobehonest,Idon’tthinkwehaveachanceofwinning.StepⅤHomework.Reviewthekeysentencesinthispart2.Previewthewordsinthesecondperiod.3.ActouttheplayingroupsThesecondperiod:ActingStepIActingT:Areyoureadytoactouttheplaynow<class?Ss:yes.T:Good.Let’swelcomethefirstgroupandthesecondgrouppleasegetprep ared.…T:class,weshouldpayattentiontosomeexamplesofmarkTwa in’shumorinthisscene,whichwillhelpusbetterunderstandth eplayandactitoutmoreappropriately.Doyouagreewithme?Ss:yes,ofcourse.StepIIHomeworkReviewwhatwelearnedinthisunitTheThirdperiodwatchingthemovieThemillionPoundBanknoteUnit4Astronomy:thescienceofstarsTeachingaims:.Talkaboutthescienceofstars2.Practisegivinginstructions4.Learntousenounclausesasthesubject5.Learntowriteanessaytoshowyourproblemsandthewaytoove rcomethem.6.Vocabulary:astronomy,atmosphere,violent,explode,sur face,disappointed,gradually,cheer,mass,harmful,presence, intime,prevent…from…dependon,nowthat,getthehangof,breakoutThefirstperiodIntensivereadingStepⅠPresentationT:Hello,everyone!TodaywewillcometoUnit4,Astronomy.B eforethatIhaveaquestion:wheredowecomefrom?orwecansa y:whoareourancestors?S1:monkeys!S2:BeijingRenwholivedmanyyearsago.S3:dinosaurs…T:Verygood!Doyouknowwhatitwaslikebeforelifeappeared onearth?S4:Fullofwater…Bs:Idon’tknow.T:Doyouwanttogetmoreinformation?Ss:yes,wedo.T:Todaywewilllearnsomethingabouthowlifebeganonearth .Turntopage25.Let’scometowarmingupfirst.StepⅡwarmingup5.Readthethreequestions,whilethestudentslistenandfoll ow.6. Givethestudentsseveralminutestodiscussthequestions.7.collectanswersfromtheclass.8.checkanswerswhilediscussing.StepⅢPre-readingGetthestudentstodiscussthequestionsonpage25withthei rpartners.Thenaskthestudentstotelltheirstories.Enco uragethemtotelldifferentstories,Iftheydon’tknowany,tellthemsome.T:Nowdiscussthesequestionswithyourpartners.ThenIwil lasksomeofyoutotellusyourstories.Areyouclear?Ss:yes.a.Doyouknoweachreligionorculturehasitsownideasaboutth ebeginningoftheuniverse?Giveanexampleifyouknow.b.Doyouknowwhatascientificideais?Readsomestoriestothestudents.Panguseparatestheskyfromtheearth;TheBiblicalAccount;India;japan;Europe;StepⅣReading.ScanningGetthestudentstoreadthepassagequicklyandaccuratelya ndmeanwhilehelpthestudentstoformagoodhabitofreading .Givethestudentsacoupleofminutestolookthrouththewho lepassage.Tellthemtoreadsilentlyandthenasksomedetai ledquestionsaboutthetext.Encouragethemtoexpressthei rideas.T:wearegoingtolearnapassageabouthowlifebeganontheea rth.Nowreadthetextquicklyandthenanswermyquestions.a.whatwasthereontheearthbeforelifebegan?b. whydoscientistthinktherehasneverbeenlifeonthemoon?c.whydoanimalsfirstappearinthesea?d.whydogreenplantshelplifetodevelop?e.whyweremammalsdifferentfromotheranimals?Discusstheanswerswiththewholeclass.2.SkimmingInthispart,studentswillreadthetextagainandfinishpar t1,2,3T:Nowskimthepassagefasttofinishpart1,2,3,4Thenwewil lchecktheanswerstogether.keytopart1:DBIGEHAcFjDiscusstherestwiththestudents.StepⅤListeningListentothetapeforthestudentstofollowandhavefurther understandingofthepassage.T:Readafterthetape,thenanswermesomequestionswithyou rbookclosed.a.Howdidwatercomeintobeingontheearth?b.whyiswaterimportantonearth?StepⅥLanguagepointsT:Turntopage25.Let’slookatthesentences:a.Itexplodedloudlywithfireandrock,whichwereintimetopr oducethewatervapour.whichleadsnon-restrictiveattributiveclause.intime:soonerorlater;eventuallyIwillseehimintime.Intime:notlateShewillbebackintimetopreparedinner.In/outoftime:in/notinthecorrecttimeTheaudienceclappedintimetothemusic.b.Nobodyknewthatitwasgoingtobedifferentfromotherplane tsgoingaroundthesun.Bedifferentfrom:notlikesomeoneorsomethingelseinoneo rmorewayscitylifeisquitedifferentfromcountrylife.c.whetherlifewillcontinueontheearthformillionsofyears tocomewilldependonwhetherthisproblemcanbesolved.Tocome:servesasattributiveSheisthelastpersontodosuchathing.Dependon:somethingmightonlyhappenorbetrueifthecircu mstancesarerightforitoursuccessdependsonwhethereveryoneworkshardornot.d.walkingdoesneedabitofpracticenowthatgravityhaschang ed.Nowthat:becauseofthefactthatNowthatIamfree,Icanenjoymusicforawhile. Nowthatyouhavegrownup,youcandecideitbyyourself. StepⅦHomework.Retellthepassage2.Rememberimportantlanguagepoints ThesecondperiodLanguagestudyStepⅠRevision.checkretellingofthepassage2.Translatethefollowingsentences.a.你迟早会成功的.b.我的车与你的不一样.c.站在门旁边的那个人是谁?d.他总是第一个来,最后一个走.e.既然你已经长大了,你自己决定吧.Suggestedanswers:a.youwillsucceedintime.b.mycarisdifferentfromyours.c.whoisthepersonstandingbythedoor?d.Heisalwaysthefirsttocomeandthelasttogo.e.Nowthatyouhavegrownupyoucandecideityourself.StepⅡwordstudyThispartisaconsolidationofthewordslearntinthisunit. Askthestudentstodotheexercisesindividually.a.Page27.Firstletstudentsfinishpart1,2b.checktheanswerswiththewholeclass.c.Givestudents3minutestofinishpart3.d.Letthestudentsreadpart4forawhileandfinishit.e.Turntopage63.Firstletthestudentsfinish1and2andcheck theanswers.StepⅢPreparationShowsomesentencesontheblackboard.a.Atreehasfallenacrosstheroad.b.youareastudent.c.Tofindyourwaycanbeaproblem.d.Smokingisbadforyou.e.“Howdoyoudo?”isagreeting.f.whatshesaidisnotyetknown.Thatweshallbelateiscertain.h.It’scertainthatweshallbelate.T:whatpartdoestheunderlinedpartserveasineachsentenc e?orfinditssubjectineachsentence.StepⅣGrammar.Givethestudentssometimetofindthesentencesinthepassa ge.Thecollectanswersfromtheclass.2.Showtypicalexamplesofhowtomakeasubjectclause.Guidet heSstofindoutwhatchangeswehavetomakewhenwemakeasent enceorcombinetwosentencesusingsubjectclause.Teacher showstheexampleandSswritedownthesentences.3.Turntopage64.Readthefollowingpassagequicklyandfinis htheeightsentences.Haveadiscussioninpairs.Thetopicismydream.onetalksab outtheproblemsinhisstudyorlife,anothergivessomeadvi ce.Remindthestudentstousethefollowingstructuresa.myproblemis…b.mytroubleis…c.Thequestionis…d.myadviceis…e.whatIthinkaboutitis…f.Thefactis…g.mysuggestionis…StepⅤHomework.Finishpart3Finishpart3Addedmaterial:什么是黑洞？就是在宇宙中有那么一些点，这些点的体积趋向于零而密度变得无穷大，由于具有强大的吸引力，物体只要进入离这个点一定距离的范围内，就会被这个强大的引力吸收掉，连光线也不例外。

高二英语上册全册优秀教案高二英语上册全册优秀教案Unit 1 Festivals arund the DiscussStep Ⅲ Useful StructuresStep Ⅲ Discussin and writingAdded aterial:Thansgiving DaFurth Thursda in Nveber is celebrated as ‘Thansgiving Da’ Peple than Gd fr his blessings. Peple can ‘Than’ friends, fes and anne fr the experiences, happiness and sunshine the bring int their lives. Pilgris celebrated the first Thansgiving Da in Aerica during the sed winter in the new wrld. The first winter had been bad as nearl half f the peple had perished due t lac f fd and bad weather. But the fllwing ear, with the help f Indians wh shwed the hw t plant Indian crn, the pilgris had suessful harvest. Gvernr Willia Bradfrd decided that Deceber 13, 1621 be set asidefr feasting and praer. The Indians were invited t share the festival. Since than, Thansgiving Da is been celebrated in Aerica. Hwever, it was nl in 1941, the Cngress in a int reslutin naed the furth Sunda in Nveber as the fficial Thansgiving Da.Dating bac, it is nwn that the Cuncil thught t appint and set apart the 29th da f une, as a da f Slen Thansgiving and praise t Gd fr his Gdness and Favur. The FirstThansgiving Prclaatin was hwever n une 20, 1676. The gverning cuncil f Charlestwn, Massachusetts, held a eetingt deterine hw best t express thans fr the gd frtune thathad seen their cunit securel established. B unanius vte the instructed Edward Rawsn, the cler, t prclai une 29 as a daf thansgiving, It is als nwn that the Pilgris set grund at Pluth Rc n Deceber 11, 1620. Their first winter was devastating. At the beginning f the fllwing fall, the hadlst 46 f the riginal 102 wh sailed n the Maflwer. But the harvest f 1621 was a buntiful ne. And the reaining clnists decided t celebrate with a feast -- including 91 Indians wh had helped the Pilgris survive their first ear. It is believed that the Pilgris wuld nt have ade it thrugh theear withut the help f the natives The feast was re f a traditinal English harvest festival than a true "thansgiving" bservance. It lasted three das.Thansgiving, as we nw it tda, has ce a lng wa fr the Pilgri's harvest festival in 1621. It is an event that sees, as each ear ges b, t reinvent itself and t expand itseaning t larger vistas. Mabe this is the real significancef the asin; fr as we tinue t change and grw as a peple, there are an increasing nuber f things fr which we can be thanful.。