专　　业：单　　位：授课人：

专　　业： 单　　位：授课人：中国人民解放军外国语学院课程课件英语高级视听说英语英语系视听说教研室

1 Review 2 Warming-Up Exercises 3 Exercises in Textbook 4 Summary and Assignments Unit 3: Tasks 英语高级视听说

Review Please translate the following into English: 怀疑态度 n. skepticism 遵守、遵从 in compliance with 违反 v. violate 批准 v. ratify 英语高级视听说

Review 以中间人身份促成 v. broker 救援物资 relief supplies 人道主义援助 humanitarian aid 核武计划 nuclear weapons program 英语高级视听说

Review • Explain the red parts in the following sentences. • Barack Obama could name his vice-presidential pick at any moment. • During the two-day talks US negotiators push for a trade waiver from the so-called Nuclear Suppliers Group. 英语高级视听说

Warming-up Exercises • Listen to the news items and retell their main ideas. Ramadann. the ninth month of the Muslim year, during which Muslims do not eat or drink anything during the day while it is light 穆斯林斋月 irreversible adj. cannot be changed back to how it was before 不能逆转或取消的英语高级视听说

Be Sensitive to Semantic Markers • How to change a topic • With regard/respect/reference to … • As for/to … • By the way … • Speaking/Talking of … • Well, I’d like to move on to … • Now, I’d like to look at … • Having looked at … let’s now consider … • Having considered … let’s now turn on to … 英语高级视听说

Note-taking Skills • How to use symbols • Use of “root” and “power” positions • Grammatical symbols • Use “d”, “ll”, “ld”, “g” for tense (eat = eatd, eatll, eatld, eatg) • Use “n”, “v”, “a”, “ad” for parts of speech (profn) • Meaning symbols • Use “r” for “doer” of action (mathr, chemr, swimr, tchr) 英语高级视听说

Note-taking Skills • How to use symbols • Symbols for words • Chemical (water=H2O, ozone=O3) • Mathematical (= the same as, equivalent to; + add to, in addition, what’s more; - minus, subtract from; > more than, greater than; < less than, smaller than) • Others 英语高级视听说

Exercise 1: Mini-Lecture fossil fuel a hydrocarbon deposit, such as petroleum, coal, or natural gas, derived from living matter of a previous geologic time and used for fuel 矿物燃料，如石油、煤、天然气等 harness v. to control and use the natural force or power of something 利用英语高级视听说

Exercise 1: Mini-Lecture biogasn. a mixture of methane and carbon dioxide produced by bacterial degradation of organic matter and used as a fuel 生物气、沼气 methanen. 甲烷, 沼气 starchyadj. containing starch 含有淀粉的英语高级视听说

Exercise 1: Mini-Lecture cassavan. 木薯：美洲热带植物，块茎状根可食用 beetn. 甜菜：两年生欧洲植物，根叶可食用 staplen. a basic dietary item, such as flour, rice, or corn 主食 methanoln. 甲醇英语高级视听说

Summary of the Lecture • Topic: competition for land use, crops for food or fuel? • Historical background • Oil crisis of the 1970s → alternative energy sources, like solar power, winds, waves, tides, biogas, etc. • Developing countries interested in converting plant material to alcohol due to large agricultural sectors • Two economic reasons for producing alcohol from sugar: • World price of sugar down • the most efficient source 英语高级视听说

Summary of the Lecture • Other starchy plants also used to make alcohol • tropical countries: cassava and sweet potato • Non-tropical countries: corn and sugar beet • Problem arising: crops for food or fuel? • Nature of the problem: economic rather than technical • Choose the most profitable • Examples: not a technological problem, two ways of using alcohol as car fuel • Pure alcohol: Brazil • Mixture with gas (gasohol): Germany 英语高级视听说

Exercise 2: Talk combustionn. the process of burning 燃烧 • internal combustion engine exhaustn. a duct or pipe through which waste material is emitted 排放管 asbestosn. 石棉英语高级视听说

Exercise 2: Talk catalytic convertera piece of equipment fitted to a car‘s exhaust system that reduces the amount of poisonous gases the engine sends out （汽车等的）催化式排气净化器 carbon monoxide 一氧化碳英语高级视听说

Exercise 2: Talk Pollutants There are many substances in the air which may impair the health of plants and animals (including humans), or reduce visibility. These arise both from natural processes and human activity. Substances not naturally found in the air or at greater concentrations or in different locations from usual are referred to as pollutants. 英语高级视听说

Exercise 2: Talk Dust storm approaching Stratford, Texas 英语高级视听说

Exercise 2: Talk Puxi area of Shanghai at sunset. The sun has not actually dropped below the horizon yet, rather it has reached the smog line. 英语高级视听说

Exercise 3: Conversation vacantadj. without an incumbent or occupant; unfilled 空缺的 generalizev. to make a general statement about the whole of a group or thing 概括、归纳英语高级视听说

Exercise 4: News Broadcasting manslaughtern. the unlawful killing of one human being by another without express or implied intent to do injury 过失杀人 snapv. to suddenly stop being able to control your anger, anxiety, or other feelings in a difficult situation 崩溃 successiveadj. coming or following one after the other 连续的英语高级视听说

Exercise 4: News Broadcasting revolvern. a type of small gun. The bullets are in a case which turns around as you fire the gun, so that when you fire one bullet the next bullet is ready to be fired 左轮手枪 forensicadj. relating to the scientific methods used for finding out about a crime 法庭的 • forensic medicine 法医学 • forensic expert 罪案调查专家英语高级视听说

Exercise 4: News Broadcasting Admiral 海军上将 • Admiral of the Fleet, Vice-Admiral, Rear-Admiral MIA (Missing in Action) 战斗中失踪的人 excavationv. the act of digging 挖掘英语高级视听说

Summary and Assignments • News Copying: Week 03 英语高级视听说

Thank You !

专 业： 单 位： 授 课 人：