新概念第二册9课课件73053PPT课件

1、1、beggar 2、pocket 3、detective 4、airport 5、expect 6、valuable/precious 7、guard 8、 diamond 9、steal stole stolen 10、south Africa 11、take the parcel off the plane 12、 wait inside the main building13、 the Customs House 14、 to their surprise 15、be full of stones and sand 16、knock at the door 17、ask for a g

2、lass of beer 18、in return for this 19、stand on ones head 20、 He calls at every house in the street once a month.第1页/共30页Lesson 9 A cold welcomeA cold welcome第2页/共30页二.钟表的发展历程 日晷：日晷，又称“日规”，是我国古代利用日影测得时刻的一种计时仪器。其原理就是利用太阳投射的影子来测定并划分时刻。日晷通常由铜制的指针和石制的圆盘组成。这种利用太阳光的投影来计时的方法是人类在天文计时领域的重大发明，这项发明被人类沿用达几千年之久。第

3、3页/共30页 漏壶钟：埃及是第一个漏壶钟出口国。它由两个互相叠置的圆筒组成。水从上面的圆筒穿过一个小孔滴入下面的圆筒。水滴完了，就是某个时辰过去了。大一点儿的漏壶灌一次水可报六个小时，然后再重新装满水。第4页/共30页漏壶钟：第5页/共30页 漏水浑天仪：东汉张衡制造漏水转浑天仪，用齿轮系统把浑象和计时漏壶联结起来，漏壶滴水推动浑象均匀地旋转，一天刚好转一周，这是最早出现的机械钟。第6页/共30页 机械打点塔钟:1350年，意大利的丹蒂制造出第一台结构简单的机械打点塔钟，日差为1530分钟,指示机构只有时针第7页/共30页游丝:1660年英国的胡克发明游丝，并用后退式擒纵机构代替了冕状轮擒纵

4、机构；游丝的发明大大推动了钟表的发展。第8页/共30页1582年前后，意大利的伽利略发明了重力摆。第9页/共30页 1675年，英国的克莱门特用叉瓦装置制成最简单的锚式擒纵机构，这种机构一直沿用在简便摆锤式挂钟中。第10页/共30页 1695年，英国的汤姆平发明工字轮擒纵机构；1715年，英国的格雷厄姆又发明了静止式擒纵机构，弥补了后退式擒纵机构的不足，为发展精密机械钟表打下了基础；1765年，英国的马奇发明自由锚式擒纵机构，即现代叉瓦式擒纵机构的前身；17281759年，英国的哈里森制造出高精度的标准航海钟；17751780年，英国的阿诺德创造出精密表用擒纵机构第11页/共30页 1819世

5、纪，钟表制造业已逐步实现工业化生产，并达到相当高的水平。20世纪，随着电子工业的迅速发展，电池驱动钟、交流电钟、电机械表、指针式石英电子钟表、数字式石英电子钟表相继问世，钟表的日差已小于0.5秒，钟表进入了微电子技术与精密机械相结合的石英化新时期。第12页/共30页当代各种精美钟表随着时代与科技的进步。钟表的精细程度也大大的提高。第13页/共30页How do people celebrate the New Years Day in the story?A large crowd of people had gathered under the Town Hall clock. It wou

6、ld strike twelve at twelve oclock. 第14页/共30页【New words and expressions】welcome n. 欢迎；v. 欢迎本 crowd n. 人群gather v. 聚集 hand n. （表或机器的）指针shout v. 喊叫 refuse v. 拒绝laugh v. 笑第15页/共30页 A cold welcome On Wednesday evening, we went to the Town Hall. It was the last day of the year and a large crowd of people

7、had gathered under the Town Hall clock.A cold welcome冷遇冷遇 cold adj. 冷的, 寒冷的, 冷淡的cold fish 冷漠的人 My brother is a cold fish.lucky dog 幸运的人Town Hall 市政厅 the last day of the year 一年中的最后一天 a large crowd of people 一大群人 in the crowd 在人群中 crowds of people 许多人, 人山人海 第16页/共30页It would strike twelve in twenty m

8、inutes time. Fifteen minutes passed and then, at five to twelve, the clock stopped.strike the clock （人）敲钟 clock strike 钟自己响Listen, the clock is striking. strike twelve 数字表示敲击的次数 minutes名词所有格，用来表达时间It will leave in five minutestime.an hours timeHow far is the school from here? 3 minutes walk. 三分钟路程。

9、第17页/共30页关于时间表示方法: Whats the time?/What time is it?A整点: A oclockA点B 分（B30) : A B / (60-B) to (A+1)A点45 分: A forty-five / a quarter to (A+1) / fifteen to (A+1)第18页/共30页The big minute hand did not move. We waited and waited, but nothing happened.hand n. (表或机器的)指针；手minute hand；second hand；hour hand sec

10、ond hand 二手的，旧的 waited and waited 等啊等啊, 强调动作的重复（walked and walked；run and run） 第19页/共30页Suddenly someone shouted. Its two minutes past twelve! The clock has stopped! I looked at my watch. It was true.It was true that+从句是一个事实 第20页/共30页The big clock refused to welcome the New Year. At that moment, eve

11、rybody began to laugh and sing.refuse to do sth. 拒绝去做某事I refuse to leave. 我拒绝离开 I refuse to move. 我拒绝移动 at that moment = just then 就在那时at the moment = now 现在, 此刻, 在此时第21页/共30页【Text】On Wednesday evening, we went to the Town Hall. It was the last day of the year and a large crowd of people had gathere

12、d under the Town Hall clock. It would strike twelve in twenty minutes time. Fifteen minutes passed and then, at five to twelve, the clock stopped. The big minute hand did not move. We waited and waited, but nothing happened. Suddenly someone shouted. Its two minutes past twelve! The clock has stoppe

13、d! I looked at my watch. It was true. The big clock refused to welcome the New Year. At that moment, everybody began to laugh and sing. 第22页/共30页【Text】On Wednesday evening, we went to the Town Hall. It was the last day of the year and a large crowd of people had gathered under the Town Hall clock. I

14、t would strike twelve in twenty minutes time. Fifteen minutes passed and then, at five to twelve, the clock stopped. The big minute hand did not move. We waited and waited, but nothing happened. Suddenly someone shouted. Its two minutes past twelve! The clock has stopped! I looked at my watch. It wa

15、s true. The big clock refused to welcome the New Year. At that moment, everybody began to laugh and sing. 第23页/共30页【Text】On Wednesday evening, we went to the Town Hall. It was the last day of the year and a large crowd of people had gathered under the Town Hall clock. It would strike twelve in twent

16、y minutes time. Fifteen minutes passed and then, at five to twelve, the clock stopped. The big minute hand did not move. We waited and waited, but nothing happened. Suddenly someone shouted. Its two minutes past twelve! The clock has stopped! I looked at my watch. It was true. The big clock refused

17、to welcome the New Year. At that moment, everybody began to laugh and sing. 第24页/共30页引导时间状语的介词in/on/at/during/till 与until用法用in的时间短语有： 表示一天中的某段时间：in the morning；in the afternoon；in the evening 表示周、月份、年份：in a week；in January；in Feb；in 1992 表示季节：in summer；in spring；in autumn；in winterin+时间长度的短语表示在某段时间之

18、内 in twenty minutes time 20 分钟之后 用on的时间短语有： 表示星期：on Monday；on Friday 表示日期：on June 1st；on 23rd March 表示星期+日期：on Monday, June 1st 表示具体时间：on Wednesday evening；on fine afternoon；on that day3、用at 的时间短语有： 表示确切的时间：at five to twelve；at ten oclock 表示其他时刻：at night；at noon；at midnight；at that time4、during在期间， during the holiday 5、fromtill 指一段明确的时间：6、until 直到时候， not.until.直到.才.I cant enter for the sports meeting until tomorrow.7、fromto从到第25页/共30页 be made of (sth)意思是“由制成”，介词of所指的原材料一般是未经变化，仍可看出材料的。 be made from (sth)意思也是“由制成”，但介词from所指的原材料往往是经过变化，已看不出原材料的。 be made in (sp)意思是“由（什么地方）生产的