最新人教版新课标高中英语必修5全套教案名师优秀教案.doc
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1、cos六、教学措施:第三章 圆等弧:在同圆或等圆中,能够互相重合的弧叫做等弧。53.264.1生活中的数3 P24-29定义:在RtABC中,锐角A的邻边与斜边的比叫做A的余弦,记作cosA,即;函数的增减性:点在圆外 dr.1、开展一帮一活动,让优秀学生带动后进生,促使他们的转化。推论1 经过圆心且垂直于切线的直线必经过切点.Unit 1 Great ScientistsTeaching Goals:1. Enable the Ss to familiar with some famous scientists and their contributions. 2. Enable the S
2、s to learn how to organize a scientific research.3. Let the Ss learn the reading skill of getting the main idea of each para./ part & each passage .Difficult points 1. How to grasp the main idea of each paragraph / part & each passage.2. How to help the Ss use what theyve learnt to do first aid trea
3、tment for burns correctly.Teaching methods1. Skimming & scanning methods to make the Ss get a good understanding of the text.2.Discussion methods to make the Ss understand what theyve learned in class.3.Pair work of group to get every student to take part in the teaching-and-learning activities.4.Co
4、mpetition and role-play method to arouse the Ss interestTeaching process:Period 1 Word study, Warming up, pre-readingPre-class task: 1. Preview new vocabulary of Unit 1, and especially pay attention to the pronunciation of the new word 2. Finish the quiz in Warming up( p1) in groups of four by refer
5、ring to books or surfing the net.Step 1 Learning GoalsGet Ss to go through the summing up form on p 8 in order to have a general idea of the learning goals of Unit 1Step 2 Word Study1. (Pair work) Get Ss to learn the new words and phrases on p92 within 3 mins, by reading them aloud to each other to
6、make sure that they can pronounce the words correctly- Get Ss to read aloud the words in pairs by turns, e.g. 1 pairs read 4 words then go to next pair2. Practice Use the correct form of the words to fill in the blanks.n.v.adj.infectionInfectInfectiousexamination=examexamineXscience /scientistXscien
7、tificconclusionconcludeXanalysisanalyseXdefeatdefeatXvalueValue(估价,评价)valuableinstructor/instructioninstructInstructive(有益的,教育性的)contribution /contributorcontributecontributivecreationcreatecreativecalculationcalculateX movementmovemovablecompletioncompletecompletive(完成的,完全的)enthusiasmXenthusiasticS
8、tep 3. Warming up (Group competition and introduce the great scientists)1.Check the answers to the quiz to find out which group know the most .2.Introduce the great scientists.1) Archimedes (287212 BC) Ancient Greek. He was a mathematician. He found that if you put an object into water the water pus
9、hes the object up. It rises and partly floats. “Give me a place to stand on, and I can move the earth.” -Archimedes 2) Charlie Darwin(1808-1882) British naturalist. The Origin of Species was published in 1859. It explained how plants and animals had changed over time to fit in with a changing enviro
10、nment. His book showed that people had developed from apes. 3) Gregor Mendel(18221884) Czech. The father of genetic. He grew pea plants and developed ideas on heredity (遗传) and inherited characteristics. Between 18561863 he grew 28,000 pea plants. He examined seven kinds of seed and plant characteri
11、stics and developed some laws of inheritance. 4) Marie Curie ( Polish ) (1867-1934) was born in Poland, moved to Paris and studied chemistry and physics there. She married Pierre Curie and together they studied radioactive materials and discovered radium. In 1911 she received the Nobel Prize in Chem
12、istry. Her death in 1934 was almost certainly due to radiation in her work. 5) Thomas Edison(1847-1931) He was already an inventor of other electrical devices (phonograph, electric light bulb) when in 1882 he designed a system for providing New York with electricity from a central power station. Thi
13、s was a tremendous achievement, which had previously been thought impossible. 6) Leonardo da Vinci (Italian) (1452-1519)He was a famous Italian artist whose skill for showing human skin tones made his paintings seem to come alive. He used to study dead people in order to make his paintings as accura
14、te as possible. Some of his famous paintings include “The Adoration of the Magi” and the “The Last Supper”. Later in his life he lived in France where he designed a submarine (潜水艇) and a flying machine. 7) British. He did research into different gases and discovered the medical value of nitrous oxid
15、e (laughing gas) as an anaesthetic.(麻醉药) In 1815 he developed a safety lamp for miners. 8) Zhang Heng ,Chinese( 78-139) He invented the first seismograph to indicate in the direction of an earthquake. It was in the shape of a cylinder with eight dragonheads round the top, each with a ball in its mou
16、th. Around the bottom were eight frogs directly under a dragons head. When an earthquake occurred, a ball fell out of the dragons mouth, making a noise. 9) Stephen Hawking,British(1942- ) He has worked in astronomy and studied black holes in space. He has shown that black holes do not only absorb ev
17、erything around them but, from time to time, throw out matter as well. This may mark the beginning of new galaxies. This is an advance on the old theory which said that black holes “eat” everything they come across. Step 4 Pre-reading 1. (Pair work) What five most important qualities do you think a
18、scientist should have? Give reasons.clever/talented strict patient creative determined/strong-willed positive honest energetic intelligent/hard-working ambitious careful co-operative confident brave 2. (Group work) Ex2, p1Do you know how to prove a new idea in scientific research? Discuss in groups
19、the stages in examining a new scientific idea. What order would you put them in?8)Draw a conclusion 3)Think of a method 4)Collect results 5)Make up a question 1)Find a problem 5)Analyse the results 6)find supporting evidence 7)Repeat if necessaryStep 5. Summary Seeing much, suffering much, and study
20、ing much are three pillars (支柱,要素) of learning.learning without thought is a labour lost; thought without learning is perilous(危险的)3. To know the disease is half the cure. 找出病根等于医治了一半。Step 6 Homework1. Preview the reading passage John Snow Defeats “King Cholera”(p2)2. Speaking task (p46) write some
21、key words to the Qs to help your talk on your book and prepare to introduce the scientist you admire most to the class 3. Read notes - to Unit 1, p76-774. Listening exercise P41,Ex 1&2Period 2 Fast Reading (P2)Step 1 Homework checking p41 ListeningStep 2 Lead in1.Invite 2-3 Ss to introduce the scien
22、tists they admire most to the class 2. Background introduction to John SnowJohn Snow (1813-1858) was born and worked as a doctor in Great Britain. He was originally an anesthetist(麻醉师).He was so famous that he became the doctor for Queen Victoria at the births of her many children.Four outbreaks of
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