【精品】高中英语（人教大纲）第三册：Unit14 Zoology(第四课时)

The Fourth PeriodTeaching Aims:1.Do some reading and writing to improve the students integrating skills.2.Practise writing an argumentative essay.Teaching Important Points:1.Helps students to understand the reading material better.2.Train students to write an argumentative essay.Teaching Difficult Point:How to improve the students integrating skills.Teaching Methods:1.Fast reading to go through the reading material.2.Question-and-answer activity to help students understand the text better.3.Individual work and group work to finish the writing task.Teaching Aids:1.a computer for multimedia use2.a coursewareTeaching Procedures:Step GreetingsGreet the whole class as usual.Step Preparation for ReadingT:Today we are going to read a passage about primates.Before you read the text,Id like to show you a picture and a news report.Please look at the screen.(Teacher uses multimedia to show the following on the screen.)Britains well-known primatologist Jane Goodall receives a kiss from Pola,a young chimpanzee she adopted from Budapests zoo.Goodall began her pioneering study of Chimpanzees more than 40 years ago in Tanzania.T:Can you say something about the picture?S1: I think some kinds of animals are very loyal to their ownes,for example dogs,horses and so on.I think that animals also have feelings.If you treat them well,they will give reward to you.T:Well done!Now Ill ask you some questions.The first one:What group do chimpanzees belong to?How about human beings?S2:Chimpanzees as well as human beings belong to primates.T:Quite right.Can you give other examples of primates?S3:As far as I know,apes such as gibbons,gorillas,orangutans belong to primates.Monkeys such as spider monkeys,baboons also belong to primates.T:Please look at some pictures on the screen.(Teacher shows the following pictures on the screen.)T:Do you want to know the differences between apes and monkeys?Do you know what kind of animal is the closest relative of human beings?Now lets read the passage to find the answers to these questions.Please read the passage quickly to get the general idea.Step Reading(Teacher gives students some time to read through the passage.)T:Have you finished?Ss:Yes.T:OK.Do you have anything that you dont understand?(Teacher asks students to tell the difficult points.Meanwhile,teacher lists them on the blackboard:Phrases:belong to,depend on,be similar to,make sense,adapt toSentence Patterns:1.Compared to/with.,Sub.+v.+.2.,except that-clause3.be of+n.)T:Now look at the screen.Ill explain these phrases and sentence patterns for you.1.The expensive car belongs to(=be the property of) Mr Black.2.How much is produced depends on(=be decided by sth.;follow from sth.) how hard we work.3.Gold is similar(=be alike to) in colour to brass.4.What you say makes no sense(=have an understandable meaning)5.She adapted(herself) quickly to(=become suited to new conditions,etc.) the new climate.6.Compared to many women,she is fortunate indeed.7.She remembered nothing about him except thathis hair was black.8.The meeting is of great importance to us all.The two brothers are of the same size.T:Please pay attention to the sixth sentence.In this sentence,“compared to many women” is past participle used as adverbial.In the seventh sentence,the preposition “except” is followed by “that-clause”.“Be of+n.” is a sentence structure used to express the features of something,such as size,height,color,and so on.Step ConsolidationT:Now we have finished reading the text and have known a lot about primates.Next,lets do some exercise to see if we have understood the text well.First,look at Exercise 1.You can use the information in the text to give examples and characteristics for each type of animals.(Teacher gives students a few minutes to prepare and then fills in the form on the screen.)animalsexamplescharacteristicsprimateshuman beings,apes,monkeys.good at holding,moving and using objects;having a good sense of touch;brain is larger compared to body sizeother animalstigers,lions,dogs,cats.poor at holding and using objects;have a good sense of touch;brain is smaller compared to body sizehigher primateshuman beings;apes.live in groups,use facial expressions,body language and sound to communicatelower primatesmonkeyslive in groups,communicate with each other in many ways(the same as higher primates)monkeysspider monkeys; night monkeyshave tails,smaller in size,walk less upright,use smell more than sight,less developed brainapesgreat apes (gorillas,chimpanzees,humans) lesser apeshave no tail,larger,walk more upright,use sight more than smell,more developed brain,have fewer youngnew wold primatessmall monkeys;(spider monkeys;night monkeys)smaller,spend less time on the groundold world primatesmonkeys,apes,humansbigger,spend more time on the ground (Teacher gives some more time for students to prepare Exercise 2 and Exercise 3.Then teacher asks them to give the answers.)T:Now look at Exercise 2.Try to answer this question:In what way are the higher primates,for example chimpanzees,similar to human beings?S4:Higher primates,for example chimpanzees,are similar to us human beings in many ways:They use the senses humans do.They have feet and hands that are similar to ours.Their diet is also similar to ours.That is,they also eat meat and plants.The most important is that the genes of human beings and chimpazees are more than 95% similar.Besides,they both live in groups and can communicate with each other in many ways.T:Very good!Now,next questions:How are they different?S5:Human beings are chimpazees but are also different from each other in some ways:Chimpanzees are not so tall as humans.They can grasp things with their feet because they still have opposable toes while human beings cant.Chimpanzees feast on things such as insects and ants,but humans dont do so.Humans can use languages to communicate but chimpanzees cant.Humans have much more developed brains than chimpanzees.T:You are quite right.Now look at Exercise 3 and try to answer this question:Do you think it is possible to teach chimpanzees to use language and do other things that we consider typically human?Why or Why not?Just give your own opinion.S6:I think it is not possible to teach chimpanzees to use language or do other things humans do,because they dont have the same developed brains as humans.S7:I dont think so.I hear that dogs can type out some words on the keyboard.Dolphins can give performances.Monkeys can ride bicycles.Of course,all of them need to be trained in special ways in order to do so.Chimpanzees are as clever as these animals.If they are trained properly,Im sure they can do some of the things humans do.T:I agree with both of you.Indeed,some kinds of animals such as elephants,dolphins,chimpanzees,dogs are very clever.They can learn to do some of the things humans do after being trained.However,they can not do all the things humans do,including using language.The reason is that chimpanzees dont have the same developed brain as humans.Step WritingT:After we read the passage about primates,weve gained much knowledge about them.Now lets do some writing.Please look at the screen.You can choose one of the topics and write a short essay in which you state and support your opinion.(Teacher shows the following on the screen.)1.Some scientists believe that primates,especially higher primates,should be treated differently from other animals.Whats your opinion?Do you think that higher primates should be given special rights because they are so close to human beings?2.Many of the higher primates,such as chimpanzees and gorillas,are endangered as a result of human activitieseither by direct hunting or by the destruction of their habitat.What can we do to help these endangered species and make sure that we do not cause more harm to them. (Teacher gives students some time to prepare.They but are allowed to have a discussion before they begin to write the essay.If there is not enough time in class,teacher may tell students to finish it after class.Sample writing:Saving PrimatesIt is reported that nearly half of the primates in the world are facing the danger of dying out.Some of them are being hunted for food or other things.Others are dying out because their habitat is destroyed as a result of human activities.There are 22 species of primates in our country.The majority of them live in the southwest of China.Most species have reduced in number.Now people have realized the importance of protecting wild animals.Government has taken measures to protect them.For example,many laws have been passed.If anyone kills primates for food or sells them for money,he will be punished.More natural parks have been built wh