人教版英语必修5教案1-3单元（精品）unit 1 great scientists period 5 优秀教案（人教版必修5）

Period 5 GrammarThe General Idea of This PeriodThis is the fifth period, which will center on the grammar: using the past participle as the attribute and the predicative.At the beginning of this period, the teacher should give the students some time to go over what they learned in the last period.Later the teacher had better present some sentences containing the past participle used as the attribute and the predicative on purpose by asking the students to do some exercises.Get the students to find all the sentences containing the past participle in the two passages.After finding them, the teacher can ask the students to analyze them and understand the function of the past participle in those sentences.After that the teacher should give the students clear explanations about the usage of the grammar.After mastering the rules of the past participle, the students should be given more exercises to consolidate what they learn.The teacher should arrange some activities carefully and creatively. First let them do some simple exercises.For example, combine the two sentences using the past participle as the attribute and the predicative.Then ask them to make some sentences using the past participle.Besides that, the teacher should help the students to review the other usages of the past participle.In the end, let them write a passage using the past participle properly.Apart from the usage of the past participle, the teacher had better make the students understand the differences between the past participle and the present participle.In order to have the students master it, the teacher should choose some exercises to supply the students with some problems to deal with.By doing and practicing more, the students may master the grammar.Teaching Important PointTo learn about the past participle used as the attribute and the predicative.Teaching DifficultyTo know the differences between the past participle and the present participle.Teaching AidsMulti-media classroom and other normal teaching tools.Three Dimensional Teaching AimsKnowledge AimTo learn about the past participle used as the attribute and the predicative. Ability AimTo use the past participle used as the attribute and the predictive freely and properly in speaking and writing.Emotional AimsEncourage the students learn more about the grammar.Help the students to form the good habit in learning.Encourage the students to do more exercises to consolidate their knowledge.Teaching ProcedureStep 1 GreetingT: Hello, my friends.Ss: Hello, Miss.Step 2 RevisionT: Do you still remember what you learned in this unit?Would you please say something about the great scientists we learned in this unit.First please something about John Snow.S: John snow, a well-known doctor in London, defeated cholera.S: He got interested in two theories explaining how cholera killed people.S: John Snow gathered the information and marked it on a map where all the dead people had lived.S: He discovered that many of the deaths were near the water.It seemed the water was to blame.Ss: .T: You really did a very good job.Now, lets say something about Nicolaus Copernicus.S1: Nicolaus Copernicus believed that the earth is not the centre of the solar system.But at that time people all believed God had made the world and for that reason the earth was special and must be the centre of the solar system.S2: In 1514 he showed his theory privately to his friends and explained his theory.S3: He was very cautious because he did not want to be attacked by the Christian church.S4: He published his theory as he lay dying in 1543.S5: His theory was rejected by the Christian Church.Step 3 PresentationT: Today we will learn the grammarpast participle used as the attribute and the predicative. First look at your text on Page 4, part I.Look at the following sentences where the past participles are used.T: In this sentence the past participle is used as an attribute phrase.Terrified people means people who were terrified.Now please find two more examples from the reading passages with past participles used as the attribute.You are allowed to find as many sentences as possible in two minutes.(Two minutes later, ask the students to report what they have found.)S1: From the stomach the disease attacked the body quickly and soon the affected person was dead.S2: Immediately John Snow told the astonished people in Broad Street to remove the handle from the water pump so it could not be used.S3: John Snow suggested that the source of all water supplies be examined and new methods of dealing with polluted water be found.S4: He placed a fixed sun at the centre of the solar system.T: Good.You just found all the sentences containing the past participles used as the attributes.Besides using as the attribute, the past participles can also be used as the predicative.Can you find the sentences wit