高中二年级Lesson90Reading高中二年级数学.doc

1、高中二年级Lesson 90 Reading 高中二年级数学Lesson 90 Reading Lesson objectives:1Students will be able to skim and scan the passage to have a good understanding of the knowledge of telephones.2Students will be able to develop their abilities of paring, concluding and imagining.Teaching aids: a puter, etc.Teaching

2、 procedure:APre-reading1RevisionUse the information from Lesson 89 about telephoning to plete some short dialogues:1) -There is no Tom here.-_.2) -_Tom? -Yes, please.3) -Is this a convenient time? -_.4) -_.Someone wants to use the phone.-Ok, all the best.Bye.(I"m sorry.I think I dialed the wron

3、g number/ would you like a word with; Hold on.I"ll go and get him/ sure, go ahead/ I"ll have to go now.) After doing this, you may ask Ss to make a similar dialogue to Lesson 89: You want to call a friend to borrow a book, but first you dialed the wrong number.Encourage Ss to practice thei

4、r spoken English.2PresentationUse the following two situations to let Ss have a discussion about what is the most convenient municative way to prepare the students to read the passage of Lesson 90:1) You want to find out if a friend is free to e to the cinema with you.2) You want to wish a friend go

5、od luck for an important e_am.You may wish to use a period of video tape in which a woman is using a telephone to arrange an appointment quickly.Then show some pictures of telephones of different periods to give Ss an impression that the old telephones are not so smart and convenient as today"s

6、 so as to arouse Ss" interest.BWhile-reading1The first time the students read the article on SB Page 62, they will skim it.Say please read the article quickly.Try to finish it in two or three minutes.Do not worry if you"ve do not understand each word.When you"ve finished, answer the t

7、wo general questions at the top of Page 62.(By thick, heavy, metal wires; By satellite, by very thin glass pipes.)2Now the students read the passage again.This time, pide the te_t into two parts (P1-3: old telephones; P4-5: modern telephones) and deal with them separately.To the first part, you may

8、ask the following questions: Why were telephones not popular at the beginning? / Why were telephones e_pensive at the beginning? / Why did you have to wind the handle before making a call? / What did the telephone operator do? / What do you call a book containing all the customers" telephone nu

9、mbers (It was difficult to hear people over long distances./ The wires which carried the telephone conversations were thick, heavy and e_pensive./ To produce electricity./ She connected the two numbers and made a note of the length of the telephone call and the charge./ A telephone directory.To the

10、second part you may ask some other questions: What are satellites used for? / What is the problem with electrical signals? / Why are light signals better than electrical signals? / How is a person"s voice sent to another one? (For sending telephone signals over long distances./ The problem with

11、 electrical signals is that they get weaker and weaker as they travel along metal wires./ They travel long distances without getting weaker and their signal is clearer./ A person"s voice is changed into electrical signals.These electrical signals are turned into light signals which are sent dow

12、n the thin “pipe”.At the other end, the light signals are received and changed back into electrical signals and finally sound.)3Now the Ss read the short passage about The Telephone in the Office on SB Page 63.To test their understanding, let them translate them into Chinese.(Conference calling 会议Di

13、aling缩位拨号Redirection转移呼叫Call waiting 呼叫等待).4Now let the Ss deal with the new words in this lesson.You may use pictures to help Ss understand and use the new words.( E_.V in AB) 1) Iron and steel are kinds of strong building materials.The storm started on the way, but I had no strength to gofor a rai

14、ncoat.We are making efforts to strengthen the relationship.2) If something happens frequently, it happens often.He paid frequent visits to me while he was staying here.The baby was fed frequently.3) To save time and money , he hired bicycles for traveling when he was in the country.4) He looked up a

15、nd saw a snake wound around a panch.The rivers wind their way to the sea.5)Where does Zhongshan Road connect with Zhujiang Road? The two cities are connected by a railway line.The police thought the man connected with the murder.CPost-reading1Give Ss several minutes to prepare to retell the two part

16、s of the te_t according to some given key words.(E_.VI in AB) (old telephones) long distances difficultwires thick, heave, e_pensivemake a call wind a handle / electricityoperator connect / note of length / chargetelephone directory 1878 / one piece / one side18772, 600 1900300,000 000(modern telephones) great advances last quarter of the 20th Centuryradio waves satel