学术英语理工详解答案Unit3

carbon, as a volatile
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
3) greenhouse:
is a structure with different types of covering materials, such as a glass or plastic roof and frequently glass or 4p)lamsetitchwanaell:s; it heats up because incoming visible solar radiation from the sun is absorbed by plants, soil, and other things inside the building.
2) Research the topic by reading the related sources or the assigned readings.
3) Familiarize yourself with the subject and list out questions if possible.
Content:
Computer Ethics
The proper ethical behavior of computer users
Dyslexia---Learning Problems The analysis of the causes of dyslexia and doctor’s explanation of it
terms
and words.
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.
学术英语理工详解答案Unit3
Unit 3 Listening to Lectures
Unit Contents
1 Preparing for listening to a lecture 2 Paying attention to the introduction 3 Understanding the ideas through examples 4 Following a lecture through signal words 5 Memorizing the points by taking notes
Unit 3 Listening to Lectures
1 Preparing for listening to a lecture
Unit 3
Listening to
LectuTreisps before
l1istePnrinegptao railnecgtufroe:r
listening
1) Find out the ttoopicaof tlhee clecttuurerteo be delivered.
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.
1 Preparing for listening
2 What is the retlaotioanshlipebcettwueernecarbon dioxide,
greenhouse gases and the thinning ozone layer with
global warming?
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 harmful radiation, causing global warming.
Unit 3
Listening to Lectures
1 Preparing for listening
3 How many fatctoorsaaffelcet cglotbualrteemperature? What
are they?
Many factors affect the Earth’s temperature on a global scale. The main factors are solar output, orbital variation volcanic eruptions, and polluting effect of human activities.
4) Sort out subject-specific words and terms the lecture may use.
Unit 3
Listening to
LectuTreisps before
l1istePnrinegptao railnecgtufroe:r
listening
5) Check the mteoaninagslaendcptrounruneciations of the
1 What are thetdoefinaitionles ocf tthue froellowing terms?
7) chlorofluorocarbon:
8icsh) alponorilnoaerrg,iachneyidccracopog:menpoaunnddfltuhoartinceo,nptaroindsuocendly
is the removal of a forest or stand of trees where the land is thereafter converted to a nonforest use.
Unit 3
Listening to Lectures
1 Preparing for listening
Unit 3 Listening to
2 Paying attention to
Lectures
1 How
does
the
tlehcteurerininttrordoucde uhisctotpiioc?n
1) Introducing the points to be covered in the talk directly
Unit 3 Listening to
2 Paying attention to
Lectu1Pirne)astTtrotoesdrtanursct ewitthhh,eeIti’lrhl tiasedlpkeeaaiabnsko:teutrr…oTtdehneundcsI’ltl ditiosocnusus…se to
Unit 3 Listening to
2 Paying attention to
Lectures
12
the introduction
Read the following introductions of two lectures and
Topicg:uess the topic and content of each of them.
Unit 3
Listening to Lectures
1 Preparing for listening
1 What are thetdoefinaitionles ocf tthue froellowing terms?
5) Kyoto Protocol:
6iCs)oadnevpferoonrtetoioscntoaltoitononCt:hleimUanteiteCdhNanagtieon(sUNFrFaCmCeCwoorrkFCCC),ming.
Unit 3 Listening to Lectures
2 Paying attention to the introduction
Unit 3 Listening to
2 Paying attention to
LectuAresTleecllitnugraenoinftteetrnehsbteienggiisnntostryirnoortdwanouawnceatcydisoo:ten
is a layer in Earth’s atmosphere containing relatively high concentrations of ozone (O3).
Unit 3
Listening to Lectures
1 Preparing for listening
1 What are thetdoefinaitionles ocf tthue froellowing terms?