Week 1 Wednesday Big lecture (10 minute) Jiaxin Xu (Samantha) February 22, 2017

Note-taking discussion How to take fast notes? Listen to the opening for lecture overview, and then lay out the lecture structure Key words: most important meanings Symbols: little pictures Abbreviations: Ppl = people/population r/t= relationship b/t= between Eg= example d/f= difference delta symbol Yr min dec…. Imptt= important ****

Listen to the 10-minute lecture Listen and take notes Listen to the 10-minute lecture Use symbols and abbreviations to take fast notes

The lecture can be divided into 5 main parts. What are they? Opening Question The lecture can be divided into 5 main parts. What are they? Opening Air pollution in urban areas= city Cause of air pollution: sulfur Forming of acid rain Effects of sulfur dioxide So2 Solution of urban forest (trees)

I will re-play the lecture part by part. Listen for details I will re-play the lecture part by part. Try to answer the details questions on the projector.

what are two main areas he will cover today? Harmful gas + trees Lecture Opening 35’ what are two main areas he will cover today? Harmful gas + trees

Air pollution in Urban places 2’13 Why are “urban places” important for air pollution? ## world ppl 6 bil, 50% in city (3 bil) ### ppl affected, same ppl cause pollution

What is a main pollutant? Where is it from? Cause What is a main pollutant? Where is it from? Pollutant= gas= sulfur dioxide SO2 Sulfur + oxygen Fuels: burn for heat e.g oil / coal

What are the four steps of forming the acid rain? Process of Acid rain 3’31 What are the four steps of forming the acid rain? 1 fuels w/ Sulfur > air 2 S + O2 (oxygen) > So2 3 SO2 + water = sulfuric acid + gas > sulfate 4 sulfuric acid + water > acid rain  Envi land water

What are the effects of air pollution on people and the environment?

Trees What is “urban forest”? Def: trees/ small forest (parks, school) What are some benefits of trees? 1 absorb gases/pollutants, sponge 2 prevent occur, cool city How? Shades, cooler > less AC use Only 3 trees lower AC $$$ 50% Intnl: Bj, China; Dublin Ireland; Mexico City

Where to find the big lecture video? Last page on Lecture Ready 2 textbook Username + password

Homework Due Thursday LR 2 chapter 6 vocabulary worksheets Due Friday study the “grammar and terminology” worksheet AND the “compound and complex sentence slides” (course website). Prepare for a game on Friday.