高中人教版 (2019)Unit 3 Environmental Protection课文配套ppt课件

这是一份高中人教版 (2019)Unit 3 Environmental Protection课文配套ppt课件，共21页。
Learning Objectives
By the end f the class, yu will be able t:learn abut the rigin f “smg” in Lndn, the slutins UK gvernment made t deal with the smg and learn t use the related chunks t talk abut lcal air pllutin. learn t use summarizing strategy in the listening prcess.learn t express ideas abut air pllutin: the causes and the slutins by referring t cmmn knwledge thrugh discussin.
Step1 Lead in
What infrmatin can yu get frm this picture?
The bridge is in Lndn.
The chimneys are in a pwer statin.
the burning cal
They all lk very plluted.
Hw d these situatins influence yur life?
These situatins influence my life nt nly by prviding electricity fr me, and transprting me, but als by plluting the air I breathe.
Step2 Pre-listening
D yu knw what we have dne t imprve the envirnment?
Step3 While-listening
Listening Tips: Hw can we listen fr a clearer gal?
I prefer t listen t the radi fr many times, then I will turn t the script t understand it better.
While listening, I will lk at the questins first, and then circle the imprtant wrds. Smetime I will take ntes.
Listening Missin 1: learn abut the cause, time and effect
Smg is _____________.a cmbinatin f smke and fg B. a type f chemicalSmg became a severe prblem because peple at that time ___burn wds B. burn cal C. burn il D. burn crps The wrst air pllutin happened in Lndn in ____.1950 B. 1951 C. 1952 D. 1953The great smg in Lndn claimed _______ deaths.A. 3,000 B. 4,000 C. 5,000 D. 6,000
While listening, we ________ the questins first, and _____ the imprtant wrds.
Which listening strategy did we use when listening?
When there were numbers, we underlined the different numbers and prnunced in advance.
Listening Missin tw: Learn abut the measures
Ben Drake, an expert n air pllutin, is being interviewed n the radi. He said that smg was a severe prblem_______________ century in Britain. At that time, Britain was experiencing a bm in _________. Factries and hmes used ______________, which created smg. He als mentined the heavy smg in Lndn __________________ and caused ver___________ in 1952. Later the UK gvernment restricted ____________ in hmes and frced factries t ________________city centres. As smg is harmful t everyne, the expert advised us t replace cal with _____________________, use new ______________vehicles, and further develp ________________.
in the early 20th
was particulary bad
burning cal
mve away frm
cleaner frms f energy
energy-efficient
green technlgy
4000 deaths
Take ntes n what the expert said. Summarise the infrmatin yu gt.
Step4 Pst-listening
Lk at the fllwing pictures and discuss:
What d yu think are the majr causes f smg in yur city?What measures can gvernment and citizens take t help address the prblem?
restricted burn cal and frced factries t mve away frm city center
furniture factry emissins;vehicles emissins
restrict the rules;advance the technlgy;bst industrial upgrading; plant trees ;travel by green vehicles...
Discuss & speak
Sample Answer
Step5 Hmewrk
Finish the related exercises.