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Roles: The World Bank representative

Focus on language | Focus on language | INVENTION /DISCOVERY | Breakthroughs of the 20th century | Focus on language | Time and order | Double-edged sword | Search the Internet or popular science magazines. Find information about national and international awards in your field of science. Report back your findings to the class. | Unit 3 Review | Unit 1 Our Home – Planet Earth |


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You are a member of the World Bank Board of Trustees who is responsible for choosing the most attractive project and an appropriate use of the money donated.

 

In the Realm of Science

1. Practice reading these compounds and chemical reactions.

H2O [‘eitʃ ‘tu: ou]  
HNO3 [‘etʃ ‘en ‘ou ‘Θri]  
NOx [‘en ‘ou ‘eks]  
SO2 [‘es ‘ou ‘tu:]  
C + O→CO2 [si:plus ou tu: give si: out u:] · C plus O two give CO2
    · 1 atom of carbon reacts with 1 two-atom molecule of oxygen and produces 1 molecule of carbon dioxide

 

2. Now take turns to read and note down the following compounds and chemical reactions.

       
   
 

 


2Mg+O2 → 2Mg0

CaO+H2O → Ca(OH)2

2CO+O2 → 2CO2

NaCl + AgNO3 → NaNO3 + AgCl

 

3. Learn the pronunciation and the meaning of the chemical elements.

Ag [α:ʹʤentәm] argentum N [ʹnaitriʤәn] nitrogen
Al [ˏæljuʹminjәm] aluminium Na [ʹsoudjәm] sodium
Br [ʹbroumi:n] bromine Ni [ʹnikl] nickel
C [ʹkα:bәn] carbon O [ʹɔksiʤәn] oxygen
Cl [ʹklɔ:ri:n] chlorine P [ʹfɔsfәrәs] phosphorous
Co [kәʹbɔ:lt] cobalt Pb [led] lead
Cs [ʹsi:zjәm] caesium Pu [plu:ʹtounjәm] plutonium
Cu [ʹkɔpә] copper Ra [ʹreidjәm] radium
H [ʹhaidriʤәn] hydrogen S [ʹsʌlfә] sulfur
Hg [haiʹdrα:ʤirәm] [ʹmә:kjuri] hydrargyrum mercury Si [ʹsilikәn] silicon
Ti [tiʹteinjәm] titanium
I [ʹaiәdi:n] iodine U [juәʹreinjәn] uranium
Li [ʹliϴiәm] lithium Xe [ʹzenɔn] xenon
Mo [mɔʹlibdinәm] molybdenum Zn [ziŋk] zinc

 

 

Unit 1. Progress Monitoring In this unit you have worked on the following vocabulary related to the topic “Environment”  
deforestation   to do harm to sth/to damage sth      
ozone layer depletion   to result in sth/to be affected by sth      
pollution/contamination   to be caused by sth/to affect sth      
the melting of glaciers   green initiative      
aquatic wildlife   sewage water treatment      
a serious issue/grave consequences   natural disasters (flood/drought/hurricane)      
litter/debris   extinction of animals or plant species      
the burning of fossil fuels   to save rare animals and plants      
vehicle exhausts          

 

Tick (V) the points you are confident about and cross (X) the ones you need to revise.

 

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