1、Learning objectives1.Master the usage of Key words,phrases and sentences in the text.2.Apply the language points into practical use.Step IExpressions and phrasesSelf-study guidance 1 Refer to the English book and find out the following useful expressions.1 看纸上墨水写成的字母2 把.引入；介绍.到3 在.岁时4 由于；因为5 压在.上6 多
2、达100磅7 太.而不能8 有用的9 从事10 世界各地see letters written in ink on paperintroduce.to/intoat the age of as a result of press against as much as 100 poundstoo.to be of use work on around the world Step II Key words&Phrases Self-study guidance 2Translate the following sentences into Chinese and refer to the Eng
3、lish paper or dictionary then notice the usage of the underlined words.1 In those days,books for blind people used paper pressed against metal wire to form letters.(L7)2 The whole system was not convenient for use.(L9)3 In 1821,a soldier visited the school and showed the students a system for passin
4、g messages at night during times of battle.(L12)4 While the students found the soldiers idea interesting,the system was too difficult to be of practical use.(L16)Presentation1 In those days,books for blind people used paper pressed against metal wire to form letters.(L7)那时候，供盲人阅读的书籍是用纸压在金属丝上来形成字母。句子
5、分析books used paper to form lettersfor blind people修饰books,pressed against metal wire 修饰paperpress1 She pressed her to against the window.2 They are pressing us to make a quick decision.3 Give the doorbell a press.4 The press was not allowed to attend the trial.v./n.v.按，压 press.against/on 把.按在.上v.催促；
6、敦促n.按，压n.新闻界；出版界；报刊pressed adj.紧缺的；压平的；压扁的 pressure n.压力判断句中press的词性及意义。2 The whole system was not convenient for use.(L9)convenient adj.便利的，方便的；附近的，容易到达的翻译句子。1.It is very convenient to pay by credit card.2.The house is very convenient for several schools.用信用卡付款非常方便。这所房子离几所学校很近点拨拓展Sth.be convenient
7、for sb.某事对某人来说很方便It is convenient for sb.to do sth.某人做某事是方便的at ones convenience 在某人方便的时候for convenience 为了方便起见for the convenience of sb.为了方便某人conveniently adv.方便地，便利地convenience n.方便，便利，适宜3 In 1821,a soldier visited the school and showed the students a system for passing messages at night during tim
8、es of battle.(L12)battle n./v.斗争；战役；奋斗；较量翻译句子Know the enemy and know yourself,and you can fight a hundred battles with no danger of defeat.The army battled the enemy out of the city.知己知彼，百战不殆军队与敌人展开搏斗，将敌人赶出了城点拨拓展accept the battle 应战gain a battle 战胜battle against/with 与.搏斗/斗争battle for 为.而战Step Main
9、and difficult sentencesCooperation and discussion 1 While the students found the soldiers idea interesting,the system was too difficult to be of practical use.(L16)虽然学生们都觉得士兵的想法很有趣，但这一方法太过复杂，并不实用。while 作连词，表示尽管，虽然“，引导让步状语从句be of+抽象名词=形容词be of use=usefulbe of importance=importantSelf-assessmentWhat y
10、ou have to do in this job is only to give a light _ on the button every 10 minutes.A hit B pressC force D pressureBThe secretary arranged a(n）_ time and place for the applicants to have an interview.A important B spareC public D convenientDAt school,some students are active _ some are shy,yet they can be good friends with one another.A while B althoughC so D asAFinish Page 99 B1 B2.
