英语优秀教案(人教版):必修五(Unit 3 Life in the future Period 5) .doc
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Later the teacher had better present some sentences containing the past participle used as theadverbial and attribute on purpose by asking the students to do some exercises.Get the students tofind all the sentences containing the past participle in the two passages.After finding them, theteacher can ask the students to analyze them and understand the function of the past participle inthose sentences.While doing it, the students should be given some explanation about how to usethe past participle.
The following step is to practise more about the grammar.The teacher should arrange someactivities carefully and creatively.First let them do some simple exercises.For example, combinethe two sentences using the past participle as the adverbial and attribute.Then ask them students tomake some sentences using the past participle.
Besides that, the teacher should help the students to review the other usages of the pastparticiple.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 studentsunderstand the difference between the past participle and the present participle.In order to have thestudents master it, the teacher should choose some exercises to supply the students with someproblems to deal with.By doing and practicing more, the students may master the grammar.
Teaching Important PointsTo learn about the past participle used as the adverbial and the attribute.
Teaching DifficultiesTo know the difference between the past participle and the present participle.
Teaching AidsMulti-media classroom and other normal teaching tools.
Three Dimensional Teaching AimsKnowledge AimsTo learn about the past participle used as the adverbial and the attribute.
Ability AimsTo use the past participle used as the adverbial and the attribute freely and properly inspeaking and writing.
Emotional AimsEncourage the students to study by themselves.
Make them know only by doing more exercises can they learn the grammar well.
Teaching ProcedureStep 1 Greeting
 T: Hello, my friends.
Ss: Hello, Miss Wang.
Step 2 Revision
 T: Do you still remember what you learned in this unit?Please say something about the life inthe future.S: The life in the future is quite different from the present life.

Period 5 GrammarThe General Idea of This PeriodThis is the fifth period, which will center on the grammar: using the past participle as theadverbial and attribute.At the beginning of the period, the teacher should offer some time to goover what the students learned in the last period.


S: People will suffer from the lack of fresh air, but they will wear masks to feel much better.S: In the future, equipment will make life much more convenient than now.
Ss: ...
T: Good.Now please answer some questions according to the passage: I Have Seen AmazingThings.Where did he visit in the first place?What did he find there?
S: His first visit was to a space station considered the most modern in this part of space.It isan enormous round plate, which spins slowly in space to imitate the pull of the earth’s gravity.Inside, it is divided into zones with extraordinarily different atmospheres and gravities. There thealien creatures live while they work with human space scientists searching for new worlds.
T: Excellent.Would you please describe the friendliest creatures he met?
S: The friendliest creatures are the mu-mu, a family from the Pleiades group of stars.Theycan see in the dark so they live in an area without light of any kind.They have assisted in thediscovery of planets round the fourth star in the Pleiades system.They speak in whispers and eatfood that contains carbon.They have six arms and one shell-covered leg.They moved forward byslowly shaking from side to side and they are tall and thin with white and black faces.
T: You did a good job.What about the most interesting creatures?
S: The most interesting creatures are the tiny dimpods from a galaxy near NGC6240.Theyskip around the pipes and between the wooden walls of the space station.They require the sameatmosphere as humans and are great engineers.They will be able to travel many light years awayfrom the earth.They also can produce a special liquid from their bodies.They are not easy to talkto, because you have to use a language-changer to help and they shout loudly in your ear.They arevery small with many arms and legs.They are purple or blue and the color changes depending ontheir mood.
Step 3 PresentationT: Can you find the following sentence in the reading passage?
Worried about the journey, I was unsettled for the first few days.
T: In this sentence the past participle is used as an adverbial phrase.It is a way of joining twoclauses together: As I was worried about the journey, I was unsettled for the first few days.Nowplease pick out three more sentences from the reading passages with past participles used as theadverbial.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.)
S: Well-known for their expertise, his parents’ company named“Future Tours”transported mesafely into the future in a time capsule.
S: Confused by the new surroundings, I was hit by the lack of fresh air.
S: Exhausted, I slid into bed and fell fast asleep.
S: Described as an enormous round plate, it spins slowly in space to imitate the pull of theearth’s gravity.
T: Good.You just found all the sentences containing the past participles used as theadverbials.Besides using as the adverbials, the past participles can also be used as the
attributes.Can you find the sentences with past participles used as attributes?Finish it in twominutes.
(Two minutes later, let the students read these sentences with past participles as the
S: People in the future will travel by hovering carriage, which will be driven by computer.


S: Well-known for their expertise, his parents’ company named“Future Tours”transported mesafely into the future in a tome capsule.
S: Soon I was back on my feet again and followed him to collect a hovering carriage driven by computer.
S: Tomorrow you will be ready for some visits organized by the company.
S: The mu-mu drink a strange mixture of carrot juice and cocoa, while the dimpods drinklemonade mixed with herbs.
S: They move forward by slowly shaking from side to side on a shell-covered“leg”.
Step 4 PractisingT: From the sentences mentioned just now, what do you know about the usage of pastparticiples as adverbials and attributes?
S: We use past participles as attributes when we want to join two clauses together, which isan attributive clause.
T: Yes.过去分词作定语, 在语态上, 表被动; 在时间上, 表示动作已经发生或完成, 与它所修饰的名词有逻辑上的动宾关系。过去分词作定语时, 所修饰的名词在逻辑上相当于被动句中的主语, 过去分词相当于谓语。
过去分词作定语表示动作在谓语动作之前发生, 已经完成并具有被动意义。有时也不表示时间性。作定语的过去分词一般由及物动词变来, 因为只有及物动词才有被动意义。例如: He is a teacher loved by his students.他是个很受学生爱戴的老师。
也有用不及物动词的过去分词作定语的情况, 一般作前置定语, 它不表示被动意义, 只表示主动意义, 强调动作完成。不能像及物动词的过去分词那样放在名词后面作定语。例如:fallen leaves 落叶
retired workers 退休工人
the risen sun 升起的太阳
T: Now combine these two sentences using the past participle as the attribute.
Soon we lost sight of that famous astronomer.He is called Li Qiang.
S: Soon we lost sight of that famous astronomer called Li Qiang.
T: I am going to buy a painting.It is copied from Vincent Van Gogh.
S: I am going to buy a painting copied from Vincent Van Gogh.
T: I like that old private house.It is built of wood and mud.
S: I like that old private house built of wood and mud.
T: The room is completely empty.The room is connected to the rest of the house by a longpassage.S: The room connected to the rest of the house by a long passage is completely empty.
T: The queen was sitting in a royal carriage.The carriage was drawn by four horses.
S: The queen was sitting in a royal carriage drawn by four horses.
T: The vehicle is mentioned in the book.The vehicle is unknown to me.
S: The vehicle mentioned in the book is unknown to me.
T: The castle is under repair.It was built in 1432.
S: The castle built in 1432 is under repair.
T: Just now we practiced past participles used as attributes.There are still some notes we
attributes.)S: My first visit was to a space station considered the most modern in this part of space.


注意下面过去分词作定语的几种情况:
1.单个的过去分词作定语一般放在被修饰的名词之前。例如:
We needed much more qualified workers.我们需要更多的合格工人。
My friend is a returned student.我的朋友是个归国的留学生。
单个分词也可以作后置定语, 用以强调动作。例如:
They decided to change the material used.他们决定更换使用的材料。
2.过去分词短语作定语要放在被修饰的名词后面, 作后置定语, 其作用相当于一个定语从句。例如:
The student dressed in white is my daughter.(=The student who is dressed in white is mydaughter.)穿白色衣服的学生是我的女儿。
3.如果被修饰的词是由every/some/any/no+thing/body/one所构成的复合代词或指示代词those等时, 即使一个单一的分词作形容词用, 也要放在被修饰词的后面。例如: Is there anything unsolved?还有没解决的问题吗? There is noting changed here since I left this town.
自从我离开这个城镇以来, 几乎没有什么变化。
4.单个过去分词前加一个名词或副词, 常用连字符将它们连接起来构成一个复合形容词,放在其修饰的名词前, 作前置定语。分词前加
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