1、,学术英语 理工,Academic English for Science and Engineering,Unit Contents,1 Preparing for listening to a lecture2 Paying attention to the introduction3 Understanding the ideas through examples4 Following a lecture through signal words5 Memorizing the points by taking notes,Unit 3 Listening to Lectures,1 P
2、reparing for listening to a lecture,Unit 3 Listening to Lectures,Unit 3 Listening to Lectures,1 Preparing for listening to a lecture,Tips before listening to a lecture:,Find out the topic of the lecture to be delivered.2)Research the topic by reading the related sources or the assigned readings.3)Fa
3、miliarize yourself with the subject and list out questions if possible.4)Sort out subject-specific words and terms the lecture may use.,Unit 3 Listening to Lectures,1 Preparing for listening to a lecture,Tips before listening to a lecture:,5)Check the meanings and pronunciations of the terms and wor
4、ds.6)Bring loose leaf paper or spiral bound notebooks.Or bring a laptop if you prefer to take notes on it and if the room is set up with ample power outlets and space.,Unit 3 Listening to Lectures,1 Preparing for listening to a lecture,1 What are the definitions of the following terms?1)CO2:2)ozone
5、layer:,is a greenhouse gas which plays a major role in global warming and anthropogenic climate change.It is also a major source of ocean acidification which dissolves in water forming carbonic acid.,is a layer in Earths atmosphere containing relatively high concentrations of ozone(O3).,Unit 3 Liste
6、ning to Lectures,1 Preparing for listening to a lecture,1 What are the definitions of the following terms?3)greenhouse:4)methane:,is a structure with different types of covering materials,such as a glass or plastic roof and frequently glass or plastic walls;it heats up because incoming visible solar
7、 radiation from the sun is absorbed by plants,soil,and other things inside the building.,is the simplest alkane,the main component of natural gas,and probably the most abundant organic compound on earth.The relative abundance of methane makes it an attractive fuel.,Unit 3 Listening to Lectures,1 Pre
8、paring for listening to a lecture,1 What are the definitions of the following terms?5)Kyoto Protocol:6)deforestation:,is a protocol to the United Nations Framework Convention on Climate Change(UNFCCC or FCCC),aimed at fighting global warming.,is the removal of a forest or stand of trees where the la
9、nd is thereafter converted to a nonforest use.,Unit 3 Listening to Lectures,1 Preparing for listening to a lecture,1 What are the definitions of the following terms?7)chlorofluorocarbon:8)polar ice cap:,is an organic compound that contains only carbon,chlorine,hydrogen and fluorine,produced as a vol
10、atile derivative of methane and ethane.,is a high latitude region of a planet or natural satellite that is covered in ice.,Unit 3 Listening to Lectures,1 Preparing for listening to a lecture,2 What is the relationship between carbon dioxide,greenhouse gases and the thinning ozone layer with global w
11、arming?Carbon dioxide is a greenhouse gas.Burning oil,coal and fossil fuels leads to a sharp increase in the greenhouse gas which build up and condense,forming a thick gas layer of carbon dioxide.This gas traps heat from the sun and destroys the ozone layer,the layer which protects the Earth from ha
12、rmful radiation,causing global warming.,Unit 3 Listening to Lectures,1 Preparing for listening to a lecture,3 How many factors affect global temperature?What are they?Many factors affect the Earths temperature on a global scale.The main factors are solar output,orbital variation volcanic eruptions,a
13、nd polluting effect of human activities.,Unit 3 Listening to Lectures,1 Preparing for listening to a lecture,4 What are the potential effects of global warming?The effects of global warming may be physical,ecological,social or economic.Evidence of observed climate change includes the instrumental te
14、mperature record,an increase of extreme weather events(such as hurricanes,earthquakes,volcanoes,and landslides),rising sea levels,decreased snow cover in the Northern Hemisphere,mass animal extinctions and human migrations.,2 Paying attention to the introduction,Unit 3 Listening to Lectures,2 Paying
15、 attention to the introduction,Unit 3 Listening to Lectures,A lecture often begins in two ways:,Telling an interesting story or an anecdoteIntroducing the points to be covered in the talk directly,2 Paying attention to the introduction,Unit 3 Listening to Lectures,Patterns the speaker tends to use t
16、o introduce their ideas:,1)To start with,Ill talk about Then Ill discuss After that,well look at Ill finish by giving a summary of2)In the first part Ill explain/talk Then in the second part,I will present/examine/analyze,2 Paying attention to the introduction,Unit 3 Listening to Lectures,1Topic:Content:,Computer Ethics,The proper ethical behavior of computer users,2Topic:Content:,Dyslexia-Learning Problems,The analysis of the causes of dyslexia and doctors explanation of it,Read the following i
