新概念英语第2册教学课件L7

1、Lesson SevenToo late单词学习 detective n. 侦探 airport n. 机场 expect v. 期待，等待 valuable adj. 贵重的 parcel n. 包裹 diamond n. 钻石 steal v. 偷 main adj. 主要的 airfield n. 飞机起落的场地 guard n. 警戒，守卫 precious adj. 珍贵的 stone n. 石子 sand n. 沙子课文讲解 The plane was late and detectives were waiting at the airport all morning. They

2、 were expecting a valuable parcel of diamonds from South Africa. A few hours earlier, someone had told the police that thieves would try to steal the diamonds. When the plane arrived, some of the detectives were waiting inside the main building while others were waiting on the airfield. Two men took

3、 the parcel off the plane and carried it into the Customs House. While two detectives were keeping guard at the door, two others opened the parcel. To their surprise, the precious parcel was full of stones and sand!单词词组at the airport 在机场里在机场里look at看看on the airfield在停机坪上在停机坪上look after照看照看a few hour

4、s earlier几小时前几小时前look for寻找寻找try to do企图做企图做put on穿上穿上main building主楼主楼take off脱下脱下some.others.一些一些.其他其他.get on上（车）上（车）take . off . 从从.拿走拿走.get off下（车）下（车）keep guard守卫守卫to ones surprise使使.吃惊的是吃惊的是be full of充满充满单词词组在机场里在机场里在停机坪上在停机坪上几小时前几小时前企图做企图做主楼主楼一些。其他。一些。其他。 从。拿走从。拿走守卫守卫使。吃惊的是使。吃惊的是充满充满at the ai

5、rport on the airfielda few hours earliertry to domain buildingsome.others.take . off .keep guardto ones surprisebe full of课文讲解 Detectives were waiting at the airport all morning. 这里detectives第一次出现，且只是强调“侦探”这类人，所以可以不用冠词。 detective n. 侦探 detective story 侦探小说 Sherlock Holmes 夏洛克福尔摩斯 waiting at the airp

6、ort wait for sb. / sth. at somewhere； I am waiting for you at the bus stop.课文讲解 They were expecting a valuable parcel of diamonds from South Africa. expect sth.(心理上的期待) = wait for sth. (动作上的期待)。expect sb. to do sth. valuable 贵重的 VS precious 珍贵的 a parcel of. 一包 diamond（jade，crystal）戴梦得珠宝课文讲解 A few ho

7、urs earlier, someone had told the police that thieves would try to steal the diamonds. 立足点是侦探们等在机场的时间。主句用的过去完成时，从句用的过去将来时。课文讲解 A few hours earlier, someone had told the police that thieves would try to steal the diamonds. someone 不定代词，某人（单数概念）。 try to do sth. 试图做某事。 a few hours ago 现在之前，以现在的时间为基点往前推

8、，用于一般过去时。 a few hours earlier 比之前更早，以过去的时间为基点往前推，用于过去完成时。课文讲解 When the plane arrived（分句2）, some of the detectives were waiting inside the main building while others were waiting on the airfield（分句1）. 主句是过去进行时，分句1是过去进行时，分句2是一般过去时。 while 后常接进行时（持续性动词）。 when 后常接一般时（瞬时性动词），也可接进行时（持续性动词）。 on the airfield

9、 / at the airport课文讲解 When the plane arrived（分句2）, some of the detectives were waiting inside the main building while others were waiting on the airfield（分句1）. onethe other 一个另一个 someothers 一些另一些 Some students are very hard-working, others are not. others=other+名词复数 课文讲解 While two detectives were ke

10、eping guard at the door, two others opened the parcel. 注意：这两个动作同时发生（at the same time），但主句动作是想要强调的动作。 My father is reading newspapers while my mother is cooking. My father was reading newspapers when the telephone rang. （ring为瞬间动词，过去时） while还有另外一种用法，表示转折： He is hard-working while his brother is lazy.

11、 (while = whereas)课文讲解 Two men took the parcel off the plane and carried it into the Customs House. 这里的off有“离开”之意，而且一般是方向向下。 He kicked the snow off his shoes. She took the painting off the wall. the Customs House = the Customs 海关。carry. (from.) to/into. 把某物从某地带往某地 如果动词短语介词后有宾语，需把名词或代词放在动词与介词之间，避免两个宾

12、语撞在一起。 took the parcel off the plane carried it into the Customs House课文讲解 To their surprise, the precious parcel was full of stones and sand! to ones surprise 令某人吃惊的是。固定表达方式。 to ones disappointment precious = very valuable 非常珍贵的。 be full of = be filled with 装满了 stone 可数，sand 不可数。 a grain of sand 一粒

13、沙子 a pile of sand 一堆沙子单词学习 expect v. 期待, 等待 vt.&vi. 预计，预料 Jim has failed in mathematics as his teacher expected. 正如他老师所预料的那样，吉姆数学考试没及格。 vt. 等待，期待，盼望（心理上的等待） They are expecting guests tonight. 今晚有人要去他们那里作客。 单词学习 expect v. 期待, 等待 expect sth. I expect a letter from Jimmy. expect sb.to do sth. 期待某人做

14、某事 I expect you to write back. I expect my mother to come back. wait for sth./sb. 动作上的等待 Im waiting for my mother. vt. 认为，猜想（一般用于口语） I expect so./ I think so. 我希望如此口语 I expect youve heard the news. 我想你已经听到这个消息了。 单词学习valuable adj. 贵重的 / precious adj. 珍贵的 value n.&v. 价值；valuable adj.有价值的 precious

15、adj. 珍贵的（带有一定的感情色彩） precious photo 珍贵的照片 -less 表否定; priceless adj. 没有价格的, 无价的 valueless adj. 没有价值, 不足道的 worthless adj. 无价值的 单词学习steal（stole，stolen） v. 偷 vt.&vi. 偷盗，行窃 英语中“偷”用 steal和rob来表达。steal宾语是物；rob宾语是人；跟地点相连，也用rob steal sth. 偷(某物) My wallet was stolen. John never steals. 约翰从不偷东西。 rob sb. 抢(某

16、人) I was robbed. They robbed the bank. vt. 巧妙地占用，偷偷地弄到手 He has stolen away Marys heart. 他已赢得玛丽的芳心。 vi. 偷偷地行动，悄悄靠近 He stole into the room. 他悄悄地进了房间。 Grammar: 过去进行时态 构成： 复习：现在进行时 对比：过去进行时 过去进行时的四个基本句型: 肯定句 He was cooking at six last night. 否定句 He was not cooking at six last night. 一般疑问句 Was he cooking

17、 at six last night? Yes, he was. No, he wasnt. 特殊疑问句 What was he doing at six last night?Grammar: 过去进行时态 过去进行时用法： 过去某个时间点正在发生的动作 She was still reading at 11 last night. 她昨天晚上11点还在读书。 过去某段时间正在发生的动作 My parents were staying here from March to May last year. 去年从3月到5月，我父母一直在这里。 过去进行时常见的时间状语：Grammar: 过去进行

18、时态 由when或 while引导的时间状语从句 从句由“when”引导，谓语是点动词，用过去时，主句谓语为持续动词，用过去进行时：（通常表示主句动作发生的过程中，另一个意想不到的动作发生了。） Jim was reading when the teacher came in. 吉姆正在读书，这时老师进来了。 I was walking in the street when someone called me. 我正在街上走时突然有人喊我。Grammar: 过去进行时态 由when或 while引导的时间状语从句 从句谓语是持续动词，用过去进行时态，主句谓语为点动词，用过去时： When /

19、While we were having supper, the light went out. 我们正在吃饭时灯熄灭了。 Jim came in while Kate was watching TV. 在凯特正在看电视的时候，吉姆进来了。 从句和主句谓语都为持续动词，都用过去进行时：（表示两个动作同时进行） Jim was reading while Kate was watching TV. 在凯特正在看电视的同时，吉姆正在读书。 Grammar: 过去进行时态 由when或 while引导的时间状语从句 从句谓语是持续动词，用过去进行时态，主句谓语为点动词，用过去时： When / Wh

20、ile we were having supper, the light went out. 我们正在吃饭时灯熄灭了。 Jim came in while Kate was watching TV. 在凯特正在看电视的时候，吉姆进来了。 从句和主句谓语都为持续动词，都用过去进行时：（表示两个动作同时进行） Jim was reading while Kate was watching TV. 在凯特正在看电视的同时，吉姆正在读书。 Grammar: 过去进行时态 与一般过去式的区别: 过去进行时比过去时的时间更具体 He watched TV last night. （过去时间last nig

21、ht, 用一般过去时） He was watching TV at nine last night. （过去时间last night + 点时间 at nine, 用过去进行时）Grammar: 过去进行时态使用过去进行时应注意的几点 过去进行时可表示按计划、安排过去某时将要发生的动作 He said they were leaving for Beijing this afternoon. 他说他今天下午要去北京。 动词hope, wonder等的过去进行时常用来表示提出要求，虽然表示现在的内容，但语气比一般现在时或一般过去时要委婉。 I was wondering whether you could come to join us. 我想你能否过来跟我们一起活动？ 过去进行时中有always, forever, continually, constantly修饰时，表示说话人的赞赏或厌烦的感情。 He was always thinki