[00:11.98]MODULE 5 A Lesson in a Lab
[00:17.51]INTRODUCTION Vocabulary and listening
[00:22.05]1.Choose the correct answers to the quiz. Now listen and check your answers.
[01:31.29]READING AND VOCABULARY
[01:34.22]2 Read Passage A and choose the best title for it.
[01:40.95]The Different Uses of Metals The Reaction of Metals
[01:49.66]The Reaction of Metals with Oxygen
[01:55.74]Passage A It is hard to think of a world without metals.
[02:01.75]Different metals have different uses, for example, steel is used in cars,
[02:08.94]and iron is used in electrical equipment. When we use metals,
[02:14.81]it is important to know how they react with different substances,
[02:19.43]for example, water and oxygen.
[02:23.37]The reaction of metals with these substances can be put in order.
[02:29.50]Here is a table with the metals that react most at the top,
[02:34.36]and the metals that react least at the bottom.
[02:41.04]4.Read the passage and fill in the table.
[02:47.56]Passage B A Simple Scientific Experiment
[02:52.88]Below is a description of a simple scientific experiment.
[02:58.04]It shows us how iron reacts with air and with water.
[03:03.50]Aim:To find out if iron rusts (a) in dry air;
[03:09.93](b) in water that has no air in it (air-free water);
[03:16.67](c) in ordinary water.
[03:20.45]Apparatus:3 clean iron nails; test tubes; test tube holder;
[03:28.51]cotton wool; oil; Bunsen burner.
[03:34.33]Iron in dry air keep air out of the water. Method
[03:37.56](1) Put some iron nails at the bottom of a test tube.
[03:43.59](2) Push some cotton wool down the tube. (3) Leave the tube for one week.
[03:53.91]Result After one week, the nails have not rusted.
[04:00.44]Conclusion Iron does not rust in dry air.
[04:07.73]Iron in air-free water Method
[04:12.14](1) Half-fill a test tube with water. (2) Boil the water for three minutes.
[04:21.20](This makes sure there is no air in the water.)
[04:25.45](3) Put two or three clean nails in the water.
[04:31.37](4) Add some oil to the water. This will keep air out of the water.
[04:38.90](5) Leave the tube for one week.
[04:44.06]Result The nails do not rust in the tube with air-free water.
[04:52.02]Conclusion Iron does not rust in air-free water.
[04:59.31]Iron in ordinary water Method
[05:04.86](1) Half-fill a test tube with water and add two or three clean nails.
[05:14.89](2) Leave the tube for one week.
[05:19.70]Result The nails rust in the tube with ordinary water.
[05:27.35]Conclusion Iron rusts in ordinary water.
[05:44.25]liquid ['likwid] n.液体 expand [iks'p╗nd] vi.膨胀
[05:49.61]contract ['k╛ntr╗kt] v.使缩短
[05:51.59]substance ['s╘bst╓ns] n.物质
[05:53.25]mixture ['mikst╞╓] n.混合, 混合物 oxygen['╛ksid╜╓n] n.[化]氧
[05:56.75]electricity [ilek'trisiti] n.电流, 电, 电学
[05:58.61]stage [steid╜] n.阶段;时期
[06:00.09]conclusion [k╓n'klu:╜╓n] n.结论 aim [eim] n.目标
[06:03.27]reaction [ri(:)'╗k╞╓n] n.反应
[06:05.15]electrical [i'lektrik(╓)l] adj.电的, 有关电的
[06:06.86]equipment [i'kwipm╓nt] n.装备, 设备
[06:08.34]react [ri'╗kt] vi.起反应
[06:10.10]potassium [p╓'t╗sj╓m] n. [化]钾
[06:11.72]sodium ['s╓udj╓m] n.[化] 钠 calcium ['k╗lsi╓m] n.[化]钙
[06:14.92]magnesium [m╗g'ni:zj╓m] n.[化]镁
[06:17.04]aluminium [,╗lju:'minj╓m] n.[化]铝
[06:18.96]zinc [zi╕k] n.锌 partial ['pa:╞╓l] adj.部分的, 局部的
[06:22.55]copper ['k╛p╓] n.铜, 警察 oxide ['╛ksaid] n.[化]氧化物
[06:25.54]rust [r╘st] n.铁锈 boil [b╛il] n.沸点, 沸腾
[06:28.69]ordinary ['╛:din╓ri] adj.平常的, 普通的
[06:30.14]steam [sti:m] n. 蒸汽;水气
[06:31.56]float [fl╓ut] vi. 浮动, 飘浮 form [f╛:m] v. 形成
[06:34.56]dissolve [di'z╛lv] v.溶解, 解散 balance ['b╗l╓ns] n.秤, 天平
[06:38.04]crucible ['kru:sibl] n.坩锅 tongs [t╛╕z] n.钳子, 夹具
[06:41.43]flame [fleim] n.火焰
[06:43.00]facility [f╓'siliti] n.设备, 工具
[06:44.47]lecture ['lekt╞╓] n.演讲
[06:46.04]department [di'pa:tm╓nt] n.系
[06:47.72]astonished /╓'st╛ni╞/ adj. 惊讶的
[07:00.46]LISTENING AND WRITING
[07:02.84]2 Listen to the conversation.Was your predicion for activity 1 correct?
[09:56.24]3.Listen again
[09:59.02]and complete the description of the scientific experiment.
[12:49.33]PRONUNCIATION Intonation in questions
[12:53.68]1.Listen to the intonation of these sentences.
[12:58.43]The student is asking his teacher questions.
[13:01.98]Does the voice go up or down at the end? 1 How much do we need?
[13:10.89]2 What about this piece? 3 Is this piece OK?
[13:19.75]4 Where do we go from here? 5 Do you want me to write that down?
[13:30.97]2.Listen again and repeat the questions Use the correct intonation.
[13:39.47]1 How much do we need?
[13:43.74]2 What about this piece? 3 Is this piece OK?
[13:52.54]4 Where do we go from here? 5 Do you want me to write that down?
[14:13.39]MODULE 6 The internet and telecommunications
[14:21.54]READING AND VOCABULARY
[14:23.87]1.Work in pairs. Read and answer the questions.
[14:29.73]1 What is the Internet? 2 How did it start?
[14:36.52]3 What is the World Wide Web? 4 Who invented it?
[14:44.61]The Internet is the biggest source of information in the world,
[14:49.27]and it's accessible through a computer.
[14:52.86]It consists of millions of pages of data.
[14:57.77]In 1969, DARPA, a US defence organisation developed a way
[15:04.15]for all their com- puters to "talk" to each other through the telephone.
[15:09.22]They created a net- work of computers called DARPANET.
[15:14.84]For fifteen years, only the US army
[15:18.32]could use this system of communication.
[15:21.71]Then in 1984, the US National Science Foundation
[15:26.72](NSF) started the NSFNET network.
[15:32.20]It then became possible for universities to use the system as well.
[15:37.81]NSFNET became known as the Inter-Network or "Internet".
[15:46.20]The World Wide Web (the web) is a computer network
[15:51.02]that allows computer users to access information
[15:54.31]from millions of websites via the Internet.
[15:58.50]At the moment, about 80 percent of web traffic is in English,
[16:03.22]but this percentage is going down.
[16:06.36]By 2020, much web traffic could be in Chinese.
[16:12.72]The World Wide Web was invented in 1991 by an English scientist,
[16:18.45]Tim Berners-Lee. Berners-Lee built his first computer
[16:23.45]while he was at university using an old television!
[16:28.06]He came up with the idea of the World Wide Web in 1989
[16:32.72]while he was working in Switzerland.
[16:36.27]Derners-Lee made it possible for everyone to use the Internet,
[16:40.22]not just univer- sities and the army. He designed the first "web browser",
[16:46.24]which allowed computer users to access documents from other computers
[16:52.00]From that moment on, the web and the Internet grew.
[16:56.56]Within five years, the number of Internet users rose
[17:00.97]from 600,000 to 40 million.
[17:05.26]The Internet has created thousands of millionnaires,
[17:09.06]but Berners-Lee is not one of them.
[17:12.51]Everyone in the world can access the Internet
[17:15.43]using his World Wide Web system.
[17:18.62]He now works as a lecturer
[17:20.54]at Massachusetts Institute of Technology in Boston.
[17:36.54]contain [k╓n'tein] vt.包含, 容纳 access ['╗kses] n.通路, 访问, 入门
[17:42.25]crash [kr╗╞] n.(计算机)崩溃 keyword ['ki:w╓:d] n. 密码;口令
[17:45.50]log [l╛g] vt. 记录;登录 software['s╛ftw╔╓] n.软件
[17:48.63]breakdown ['breikdaun] n. 故障
[17:50.36]source [s╛:s] n. 来源, 水源
[17:51.77]accessible [╓k'ses╓bl] adj.可进入的; 可使用的
[17:53.79]data ['deit╓] n.数据 defence [di'fens] n.防卫, 防卫设备
[17:57.13]create [kri'eit] vt.创造, 创作 network ['netw╓:k] n.网络
[18:00.37]via ['vai╓] prep. 经, 通过, 经由
[18:01.70]percentage [p╓'sentid╜] n.百分数, 百分率
[18:03.17]design [di'zain] n. 设计
[18:04.84]document ['d╛kjum╓nt] n. 公文, 文件
[18:06.40]invention [in'ven╞╓n] n. 发明, 创造
[18:08.02]permission [p╓(:)'mi╞╓n] n. 许可, 允许
[18:09.68]military ['milit╓ri] adj. 军事的, 军用的
[18:11.56]concentrate ['k╛nsentreit] v. 集中, 浓缩
[18:13.39]definite ['definit] adj. 明确的
[18:15.10]fantastic [f╗n't╗stik] adj. 幻想的, 奇异的
[18:16.68]independent [indi'pend╓nt] adj. 独立自主的, 不受约束的
[18:18.50]essay ['esei] vt. 企图, 尝试 pass [pa:s] vt.超过
[18:21.63]frequently ['fri:kw╓ntli] adv. 常常, 频繁地
[18:23.40]disadvantage [,dis╓d'va:ntid╜] n. 不利, 不利条件, 缺点
[18:25.76]average['╗v╓rid╜] n.平均
[18:27.01]statistics [st╓'tistiks] n.统计学, 统计表
[18:28.84]shorten ['╞╛:tn] v. 缩短, (使)变短
[18:30.62]sideways ['saidweiz] adv. 向侧面地, 斜地里
[18:43.68]LISTENING AND VOCABULARY
[18:45.95]2.Listen to three people answering the interviewer.
[18:51.06]Choose their opinions from this list.
[21:22.02]PRONUNCIATION Stressing important information
[21:26.73]1.Look at the extract from the interview.
[21:31.19]Underline the words that you think are important and should be stressed.
[21:38.91]Now listen and check
[21:41.43]I:How often do you use the Internet? T:Every day.
[21:45.34]I:At school or at home? T:At school and at home.
[21:49.65]I:How much time do you spend on the Internet at home?
[21:53.02]T:As much time as I can. About five hours. I:Five hours a week?
[21:58.66]T:No! Five hours a day!
[22:23.29]New Standard English Senior High Book 1 Work Book & Text Book
[00:17.51]INTRODUCTION Vocabulary and listening
[00:22.05]1.Choose the correct answers to the quiz. Now listen and check your answers.
[01:31.29]READING AND VOCABULARY
[01:34.22]2 Read Passage A and choose the best title for it.
[01:40.95]The Different Uses of Metals The Reaction of Metals
[01:49.66]The Reaction of Metals with Oxygen
[01:55.74]Passage A It is hard to think of a world without metals.
[02:01.75]Different metals have different uses, for example, steel is used in cars,
[02:08.94]and iron is used in electrical equipment. When we use metals,
[02:14.81]it is important to know how they react with different substances,
[02:19.43]for example, water and oxygen.
[02:23.37]The reaction of metals with these substances can be put in order.
[02:29.50]Here is a table with the metals that react most at the top,
[02:34.36]and the metals that react least at the bottom.
[02:41.04]4.Read the passage and fill in the table.
[02:47.56]Passage B A Simple Scientific Experiment
[02:52.88]Below is a description of a simple scientific experiment.
[02:58.04]It shows us how iron reacts with air and with water.
[03:03.50]Aim:To find out if iron rusts (a) in dry air;
[03:09.93](b) in water that has no air in it (air-free water);
[03:16.67](c) in ordinary water.
[03:20.45]Apparatus:3 clean iron nails; test tubes; test tube holder;
[03:28.51]cotton wool; oil; Bunsen burner.
[03:34.33]Iron in dry air keep air out of the water. Method
[03:37.56](1) Put some iron nails at the bottom of a test tube.
[03:43.59](2) Push some cotton wool down the tube. (3) Leave the tube for one week.
[03:53.91]Result After one week, the nails have not rusted.
[04:00.44]Conclusion Iron does not rust in dry air.
[04:07.73]Iron in air-free water Method
[04:12.14](1) Half-fill a test tube with water. (2) Boil the water for three minutes.
[04:21.20](This makes sure there is no air in the water.)
[04:25.45](3) Put two or three clean nails in the water.
[04:31.37](4) Add some oil to the water. This will keep air out of the water.
[04:38.90](5) Leave the tube for one week.
[04:44.06]Result The nails do not rust in the tube with air-free water.
[04:52.02]Conclusion Iron does not rust in air-free water.
[04:59.31]Iron in ordinary water Method
[05:04.86](1) Half-fill a test tube with water and add two or three clean nails.
[05:14.89](2) Leave the tube for one week.
[05:19.70]Result The nails rust in the tube with ordinary water.
[05:27.35]Conclusion Iron rusts in ordinary water.
[05:44.25]liquid ['likwid] n.液体 expand [iks'p╗nd] vi.膨胀
[05:49.61]contract ['k╛ntr╗kt] v.使缩短
[05:51.59]substance ['s╘bst╓ns] n.物质
[05:53.25]mixture ['mikst╞╓] n.混合, 混合物 oxygen['╛ksid╜╓n] n.[化]氧
[05:56.75]electricity [ilek'trisiti] n.电流, 电, 电学
[05:58.61]stage [steid╜] n.阶段;时期
[06:00.09]conclusion [k╓n'klu:╜╓n] n.结论 aim [eim] n.目标
[06:03.27]reaction [ri(:)'╗k╞╓n] n.反应
[06:05.15]electrical [i'lektrik(╓)l] adj.电的, 有关电的
[06:06.86]equipment [i'kwipm╓nt] n.装备, 设备
[06:08.34]react [ri'╗kt] vi.起反应
[06:10.10]potassium [p╓'t╗sj╓m] n. [化]钾
[06:11.72]sodium ['s╓udj╓m] n.[化] 钠 calcium ['k╗lsi╓m] n.[化]钙
[06:14.92]magnesium [m╗g'ni:zj╓m] n.[化]镁
[06:17.04]aluminium [,╗lju:'minj╓m] n.[化]铝
[06:18.96]zinc [zi╕k] n.锌 partial ['pa:╞╓l] adj.部分的, 局部的
[06:22.55]copper ['k╛p╓] n.铜, 警察 oxide ['╛ksaid] n.[化]氧化物
[06:25.54]rust [r╘st] n.铁锈 boil [b╛il] n.沸点, 沸腾
[06:28.69]ordinary ['╛:din╓ri] adj.平常的, 普通的
[06:30.14]steam [sti:m] n. 蒸汽;水气
[06:31.56]float [fl╓ut] vi. 浮动, 飘浮 form [f╛:m] v. 形成
[06:34.56]dissolve [di'z╛lv] v.溶解, 解散 balance ['b╗l╓ns] n.秤, 天平
[06:38.04]crucible ['kru:sibl] n.坩锅 tongs [t╛╕z] n.钳子, 夹具
[06:41.43]flame [fleim] n.火焰
[06:43.00]facility [f╓'siliti] n.设备, 工具
[06:44.47]lecture ['lekt╞╓] n.演讲
[06:46.04]department [di'pa:tm╓nt] n.系
[06:47.72]astonished /╓'st╛ni╞/ adj. 惊讶的
[07:00.46]LISTENING AND WRITING
[07:02.84]2 Listen to the conversation.Was your predicion for activity 1 correct?
[09:56.24]3.Listen again
[09:59.02]and complete the description of the scientific experiment.
[12:49.33]PRONUNCIATION Intonation in questions
[12:53.68]1.Listen to the intonation of these sentences.
[12:58.43]The student is asking his teacher questions.
[13:01.98]Does the voice go up or down at the end? 1 How much do we need?
[13:10.89]2 What about this piece? 3 Is this piece OK?
[13:19.75]4 Where do we go from here? 5 Do you want me to write that down?
[13:30.97]2.Listen again and repeat the questions Use the correct intonation.
[13:39.47]1 How much do we need?
[13:43.74]2 What about this piece? 3 Is this piece OK?
[13:52.54]4 Where do we go from here? 5 Do you want me to write that down?
[14:13.39]MODULE 6 The internet and telecommunications
[14:21.54]READING AND VOCABULARY
[14:23.87]1.Work in pairs. Read and answer the questions.
[14:29.73]1 What is the Internet? 2 How did it start?
[14:36.52]3 What is the World Wide Web? 4 Who invented it?
[14:44.61]The Internet is the biggest source of information in the world,
[14:49.27]and it's accessible through a computer.
[14:52.86]It consists of millions of pages of data.
[14:57.77]In 1969, DARPA, a US defence organisation developed a way
[15:04.15]for all their com- puters to "talk" to each other through the telephone.
[15:09.22]They created a net- work of computers called DARPANET.
[15:14.84]For fifteen years, only the US army
[15:18.32]could use this system of communication.
[15:21.71]Then in 1984, the US National Science Foundation
[15:26.72](NSF) started the NSFNET network.
[15:32.20]It then became possible for universities to use the system as well.
[15:37.81]NSFNET became known as the Inter-Network or "Internet".
[15:46.20]The World Wide Web (the web) is a computer network
[15:51.02]that allows computer users to access information
[15:54.31]from millions of websites via the Internet.
[15:58.50]At the moment, about 80 percent of web traffic is in English,
[16:03.22]but this percentage is going down.
[16:06.36]By 2020, much web traffic could be in Chinese.
[16:12.72]The World Wide Web was invented in 1991 by an English scientist,
[16:18.45]Tim Berners-Lee. Berners-Lee built his first computer
[16:23.45]while he was at university using an old television!
[16:28.06]He came up with the idea of the World Wide Web in 1989
[16:32.72]while he was working in Switzerland.
[16:36.27]Derners-Lee made it possible for everyone to use the Internet,
[16:40.22]not just univer- sities and the army. He designed the first "web browser",
[16:46.24]which allowed computer users to access documents from other computers
[16:52.00]From that moment on, the web and the Internet grew.
[16:56.56]Within five years, the number of Internet users rose
[17:00.97]from 600,000 to 40 million.
[17:05.26]The Internet has created thousands of millionnaires,
[17:09.06]but Berners-Lee is not one of them.
[17:12.51]Everyone in the world can access the Internet
[17:15.43]using his World Wide Web system.
[17:18.62]He now works as a lecturer
[17:20.54]at Massachusetts Institute of Technology in Boston.
[17:36.54]contain [k╓n'tein] vt.包含, 容纳 access ['╗kses] n.通路, 访问, 入门
[17:42.25]crash [kr╗╞] n.(计算机)崩溃 keyword ['ki:w╓:d] n. 密码;口令
[17:45.50]log [l╛g] vt. 记录;登录 software['s╛ftw╔╓] n.软件
[17:48.63]breakdown ['breikdaun] n. 故障
[17:50.36]source [s╛:s] n. 来源, 水源
[17:51.77]accessible [╓k'ses╓bl] adj.可进入的; 可使用的
[17:53.79]data ['deit╓] n.数据 defence [di'fens] n.防卫, 防卫设备
[17:57.13]create [kri'eit] vt.创造, 创作 network ['netw╓:k] n.网络
[18:00.37]via ['vai╓] prep. 经, 通过, 经由
[18:01.70]percentage [p╓'sentid╜] n.百分数, 百分率
[18:03.17]design [di'zain] n. 设计
[18:04.84]document ['d╛kjum╓nt] n. 公文, 文件
[18:06.40]invention [in'ven╞╓n] n. 发明, 创造
[18:08.02]permission [p╓(:)'mi╞╓n] n. 许可, 允许
[18:09.68]military ['milit╓ri] adj. 军事的, 军用的
[18:11.56]concentrate ['k╛nsentreit] v. 集中, 浓缩
[18:13.39]definite ['definit] adj. 明确的
[18:15.10]fantastic [f╗n't╗stik] adj. 幻想的, 奇异的
[18:16.68]independent [indi'pend╓nt] adj. 独立自主的, 不受约束的
[18:18.50]essay ['esei] vt. 企图, 尝试 pass [pa:s] vt.超过
[18:21.63]frequently ['fri:kw╓ntli] adv. 常常, 频繁地
[18:23.40]disadvantage [,dis╓d'va:ntid╜] n. 不利, 不利条件, 缺点
[18:25.76]average['╗v╓rid╜] n.平均
[18:27.01]statistics [st╓'tistiks] n.统计学, 统计表
[18:28.84]shorten ['╞╛:tn] v. 缩短, (使)变短
[18:30.62]sideways ['saidweiz] adv. 向侧面地, 斜地里
[18:43.68]LISTENING AND VOCABULARY
[18:45.95]2.Listen to three people answering the interviewer.
[18:51.06]Choose their opinions from this list.
[21:22.02]PRONUNCIATION Stressing important information
[21:26.73]1.Look at the extract from the interview.
[21:31.19]Underline the words that you think are important and should be stressed.
[21:38.91]Now listen and check
[21:41.43]I:How often do you use the Internet? T:Every day.
[21:45.34]I:At school or at home? T:At school and at home.
[21:49.65]I:How much time do you spend on the Internet at home?
[21:53.02]T:As much time as I can. About five hours. I:Five hours a week?
[21:58.66]T:No! Five hours a day!
[22:23.29]New Standard English Senior High Book 1 Work Book & Text Book
