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1、-精品范文推荐- 北师大版高二英语课件一、知识部分1、 重点单词procedure bunch merely classify promote appetite appoint calculate expense involve settlement accumulate abandon tone reward technician nowhere altogether latter distinguished appearance2、 重点短语look out for ,on a large scale, year after year, pass away, name after, in
2、detail, a bunch of, be suitable to, havein common, belong to, a branch of, classifyinto, baseon, according to, have an appetite for, appointas, lead a cosy life, be involved in, at ones own expesse, give birth to3、 重要句型强调句型4、 交际用法speak about proceduresI divide the stage into three partsFirstly,It is
3、 very important in the middle partThe last part is.This is the whole case.5、 语法宾语I gave an apple to the old man yesterday.I appreciate walking along the street with my sweetheart.6、 能力部分(writing a pocedure)二、教学过程period IStep 1Warming upLook at the pictures and match each flower with its correct name
4、.2.Can you tell something about each flower? Where does it come from?3.What is it used for?4.Which flower is your favourite? Explain why.5.What vocabulary will you need to talk about flowers and plants?Step 2Listening(略)Step 3Speakingspeak about proceduresI divide the stage into three partsFirstly,I
5、t is very important in the middle partThe last part is.This is the whole case.Step 4HomeworkPeriod II and Period IIIReading:Warming upLook at the pictures and match each flower with its correct nameWhich flower is your favorite? Explain why.Pre-readingWhy was Carl Linnaeus important to the history o
6、f botany as a science?His system of grouping plants in families was unique, which based on the arrangement of the male and female organs in the flowers.While-readingFast readingHow many people are mentioned in the passage?Carl Linnaeus Daniel Solander Joseph Banks Captain CookCareful reading1. Befor
7、e Linnaeus botany was _DAstudied by doctors Bunknown to anyone Cfully developed Da branch of medicine2. Some economic species plants such as_ could help to develop local economiesCArose and peony Btea and apple Ccocoa and hemp DCocoa and lemon3. It was _ who made Kew a centre of scientific and econo
8、mic researchAAJoseph Banks BCaptain Cook CLinnaeus D Daniel Solander4.Paragraph one of the text mainly tells us _ CAthe importance of botany Bhow to classify plant species into groupsCLinnaeuscontribution to botany DLinnaeusdiscoveries about differentspecies5.Captain Cook made _voyages altogether ar
9、ound the world. CAone BTwo CThree D.fourPost-reading1. How did scientists classify plants before Linnaeus?Some scientists classified plants into herbs and trees, or according to the shape of the fruit, or whether they had flowers or not.2. What were the goals of James Cooks first voyage around the w
10、orld?To study the passing of the planet Venus across the sun; to record, classify and describe all plant and animal life observed during the trip; to search for an unknown southern continent.3. Why did Joseph Banks have to supply his own money to equip part of the expedition?Because the government w
11、ould not pay for such a new field of science as botany.4. What could be a possible explanation for the name “strawberry”?When people plant strawberry, they spread straw under the fruit to reduce the necessary amount of watering.Translate the following phrases into English:1. 详细地 in detail2. 处于支配的地位，
12、负责 in charge of3. 由负责 in the charge of4. 任命某人为 appoint sb. as5.将分类成 classifyinto6. 计算之间的距离 calculate the distance between7. 一代一代传下去 pass on from one generation to the next8.建于之上；以为基础 be based on9.参与; 陷入 的活动 be involved in10.根据;视而定；按照 according to11.搜索；寻找 search for12.总而言之 altogether1.matchwith （在品质；
13、颜色；设计等方面）相等，相当，相配2.at the age of 在岁时3.look out for 警惕;留心;守侯4.on a large scale 大规模地;大范围地5.year after year 年年;年复一年6.pass away 逝世7.nameafter 给取名;命名8.in detail 详细9.take care of 关心;照顾10.classifyinto 分类;归类11.develop a lifelong friendship with 与结存了终生好朋友12.born into 出生13.have an appetite for knowledge 有求知欲1
14、4.appoint sb. as 委派;任命某人为15.spread over 传播;流传16.a great deal of 大量;许多(用于不可数名词)17.lie in 在于18.related to 与有关19.the key to 关键是(在于)20.adapt to 适应于21.be sunken into 堕入Period IVIntergrating skillsTeaching Aims：1. Get the students to grasp the main idea of the text so as to improve their reading ability2.
15、 Get the students to learn the scientific way for the scientists to do their research work一the way to think and observe3. Get the students to write a description of plantsTeaching Important Points：1. How to analyse fin article so as to grasp its main idea2. How to write a description according to th
16、e information givenTeaching Difficult Point：1. How to improve the studentsreading ability-how to analyse an article.Teaching Methods：1Pair work or group work to make every student take an active part in the class2Discussion to get the students to understand what they are 1earning betterTeaching Aids
17、：1acomputer2a courseware3a tape recorderTeaching procedures:Step I Greetings and RevisionGreet the whole class as usualT：In the last period。you were told to make sentences with the useful words and expressions in the textHave you got prepared?(Ss：Yes)Now read the sentences to usVolunteer!One student
18、，one sentenceSa：make attempt to do sthThey made no attempt to escape(at escaping)Sb：classifyThe books in our school library are classified according to subjectSc：groupGroup together in two!Sd：identificationHe carries identification with him at all times when he is outSe：promoteHe works to promote th
19、e friendship between the two countriesSf：privilegeThey fight against privilege in order to create a fairer societySg：cosyHe lives in a nice cosy little houseSh：have an appetite forThe enemy had no appetite for the fightSi：appointHe was appointed minister to a foreign country.Sj：calculateThe scientis
20、ts caculated when the spaceship would reach the moon with a calculator Sk：on a large scaleThe work of reforming industry carried out in all provinces on a large scaleSl：involveThe case involved several leadersSm：accumulateHe accumulated a fortune by investing wiselySn：abandonHe found a baby abandone
21、d by his parents.Step II Preparation for ReadingT：So much for homeworkNow open your books and turn to Page 169Lets read the new words and expressions of this periodWho will read them to us?Sl：Ill try(Teacher asks some students to read the new words and expressionsWhile reading，let other students cor
22、rect the mistakes made by the studentsThen play the tape to get the students to fol1owTeacher may give brief explanationabout their usages when necessary)Step Fast-readingT：Youve learnt something about Carl Linnaeus。Daniel Solander and Joseph Banks in the text weve just studiedAnd youve read about M
23、ichurin and DarwinToday，well learn about another two scientists Gregor Mendel and Gote TuressonWhat did they do? What contribution did they make?After weve learnt the passageIII sure you11 have a clear idea(Show the following on the screen)Now read the text fast and try to grasp the main idea of the
24、 text as much as possible. Then find answers to the questions on the sceen.Answer the following questions:1What was Charles Darwins hobby when he was young?2What led Darwin to write his famaous book“On the Origin of Species”?3Who founded the science of genetics?4Who made contribution to the improvem
25、ent of the output of crops according to the text? (Students begin to read the taxt. After a few minutes, teacher says the following) T：Have you finished?Ss：Yes，we haveT：Now give us the answers, please. One student，one questionSb：1When he was young, Darwin enjoyed doing all kinds of experiments and s
26、tudying physics, chemistry and later botany was his hobby.Sc：2When he was twenty-two years old，he was invited to take part in the scientific expedition on the five-year voyage led him to write his famous book：On the Origin of SpeciesSd：It was the research work of Mendel that gave birth to the scienc
27、e of genetics.Se：Mendels genetics and Turessons findings are both important to the output of crops T：What you said is right. Thank you for giving us such good aStepReading and Comprehension:T：(Show the following on the screen)Now lets read the text again and discuss the questions on the screen. Pair
28、work or group work1The research of Charles Darwin, Gregor Mendel and Cote Turesson is like pieces in a puzzle that show a complete picture when put together.(1)What did Darwin discover about bird species in Galapagos?(2)What did Mendel observe in his experiments with peas?(3)Looking at wild plant sp
29、ecies in Sweden，what did Turesson discover?2Complete the following sentenceDarwins discoveries in Galapagos were based on differences_wild species，while Turessons observations showed that there are stable varieties_wild species3That soil conditions are important to the output of crops was known more
30、 than 2000 years agoWhy are Turessons discoveries still important to agriculture then? (Teacher goes among the students and joins the students in their discussion)T：(After some minutesdiscussion)Now give us your answers，please. Who will answer the first question?Sf：He found 13 kinds of findes，relate
31、d to each other in the structure of their beaks，tails，shape of body and colour of their feathersThe most curious fact was the differences in the size of the beaksThis could only be explained from the differences in habitat and source of foodThe birds with broad beaks would eat hard seeds，while the b
32、irds with smaller beaks would eat soft seeds or insectsT：Please give us the answers to the second questionSe：He found that many characteristics were passed on from one generation to the next without influence by the environmentSh：I'll answer the last question of Part 1He found evidence for the e
33、xistence of stable varieties within species in natureHe showed that differences between plants of one species occurred as a result of the environmental conditions in their habitatSi：I think，in Part 2，for the first blank，we should fill in the words“of different，and the second，“of the sameAm I right?T
34、: What do you think, Sj?Sj：I think he is rightT: For the last question, what are your opinions?Sk：Soil conditions are important to the 0utput of cropsBut that is one side of the questionThe research by Darwin, Mendal and Turesson shows that both genetics and the environment are important to plantsIf
35、 we dont have good seeds，good soil conditions are not enough for us to improve the output of the cropsAm I right?Ss：We agree with you(Teacher plays the tape after the studentsdiscussionThen teacher asks students to read the text aloud and find questions in the textTeacher gives brief explanation to
36、them) Step V Summary and HomeworkT：Now lets think about a question：What can we learn from the text?(Write iton the blackboard) Discuss it with your partner(After a while)Who can tell us whatyou think?S1：We should observe everything carefully and think deeply，then we can draw fl good conclusionT：Very
37、 goodNow letS see how the scientists observe and think(Teacher writes Observation，ThinkingConclusionon the Bb)T：So much for the textNow todays homework：1Make sentences with the words and phrases：whatever：lead sbto do sth；nowhere，variety；in view2Do Writing on Page 35Sample writing：DandelionsIn nature
38、，there are varieties of environmental conditions for the plants to grow inSome places are hot and dry and there is little rain while in other places it is cool and wet. So the same plants that in different places are quite different.Let s take oanaeuons as an example. They are widespread and can be
39、found almost everywhereTheir yellow flowers are beautiful and their leaves look like the teeth on a sawThe wind spread their flowers and seeds everywhere，so when they grow in hot and dry places，they are low and thinTheir flowers and leaves are short and light in colour510 centimetres longThey grow c
40、lose to the ground and their roots are deep in itTheir hearts are a little sunken into the earth，so that the rain water can flow from the leaves to the heart where the roots areBut in places it is cool and wet，things fire differentThey become higher and stronger and can grow as long as 15-20 centime
41、tresTheirleaves are broader and their flowers are largerThe colour of the flowers and leaves becomes darker greenIf some weeds are taken here，there will be many of them a few weeks laterA great Swedish scientist Cote Turesson said that differences between plants of one species occured as a result of
42、 the environmental conditions in their habitatFrom dandelions we can see this clearlyStep The Design of the Writing on the BlackboardStep Record after Teaching语言点讲解procedure n.1. 程序;手续;步骤，工序；UCThe chairman was quite familiar with the procedure for conducting a meeting. 主席对开会的程序很熟悉。The new work proce
43、dure is a great improvement on / over the old one.新工序比起老工序来是一个巨大的改善。The next procedure is as follows.He complained to the manager, and by this procedure got the money back. 他向经理投诉，通过这种程序拿回钱下一个步骤如下。2. 常规;传统的做法CUThe first step in the procedure for making a kite is to build the frame.制作风筝的第一步是做骨架bunch
44、n.C1. 串,束(+of)Miss White received a bunch of flowers from her admirer.怀特小姐收到爱慕者所送的一束花。a bunch of grapes; 一串葡萄2. 【口】群,伙,帮GA bunch of children were at play.一群孩子在玩。merely adv.仅仅；只不过I merely looked at the chocolate; I did not eat it.我只不过看了看巧克力，我没有吃。They are not merely content to fill the stomach.他们不仅仅满足
45、于填饱肚子。You don't have to be angry. He merely wanted to know the truth."你不必太生气了,他只不过是想知道点事实真相。"That was merely a guess of mine.那只是我的一种猜测。classifyvt.1. 将.分类;将.分等级People who work in libraries spend a lot of time classifying books.在图书馆工作的人花大量的时间为书籍分类。Eggs are classified according to size.鸡蛋按大小分等级。identification n.1. 认出;识别;鉴定;确认Uthe identification of criminals by their fingerprin