高三英语 课外阅读 Light pollution公开课课件

Reading for structure
Part 1 (Para. __1_-2___ )
Part 2 (Para. __3_-6___)
The t_o_p_ic___ of the article The e_ff_e_c_t_s_ of light pollution
Tips for the format of expository writing:
A.The night
B. The moon
C. The sky
D. The planet
Reading for details Part 1 (Para.1-2)
2.What is light pollution? Light pollution is largely the result of bad lighting design, which allows artificial light to shine outward and upward into the sky.
Learning Aims
By the end of the class, we’ll be able to 1.get some idea of how to read expository
writing; 2.learn some mini-skills and put them into
practice.
Reading for details Part 2来自百度文库(Para.3-6)
Migrating at night, birds tend to collide with brightly lit tall buildings.
= When birds move from one place to another at night , they tend to strike violently against brightly lit tall buildings.
1.What have we human beings done to the night?
We’ve engineered it to receive us by filling it with light.
= We’ve transformed the night by filling it with light. What does “it ” most probably refer to?
Reading for details Part 1 (Para.1-2)
1. What have we human beings done to the night?
2. What is light pollution?
Reading for details Part 1 (Para.1-2)
Reading for details Part 2 (Para.3-6)
Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times brighter than normal, throwing nearly every aspect of their behavior out of joint, including their nighttime breeding choruses.
Reading for details Part 2 (Para.3-6)
aspects
effects
the sky in most cities songbirds and seabirds frogs
humans
be emptied of stars collide with throw…out of joint lose sight of
Guidance on reading expository writing
说明文阅读微技巧指导
Light Pollution
Prediction
21..WWhhaatttdyopeyoouf athrtiinckleisistihte?most challenging A.wNhaernraretiavdein(记g叙e文x)pository writing? B. Expository writing (说明文) C. Practical writing (应用文) D. Argumentation (议论文) New words , especially scientific terms are difficult to understand. It is challenging for us students to understand the main idea .
Reading for details Part 2 (Para.3-6)
In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze that mirrors our fear of the dark.
① introduction of the subject; ② examples & facts; ③ conclusion.
Fast reading
What topic does the writer introduce in the article? What might be the best title for the passage? A.The Magic Light B. The Orange Haze CM.inTi-hsekiDll iastafpinpdeinagritnhge Ntoipgichtin expository writing: D首.段T为he主R；h二yth段m为s辅of。Nature
= In most cities stars in the sky is invisible against artificial light, and as a result, the sky leaves behind a vacant haze mirroring / reflecting our fear of the dark.