Unit 7 Environment

unit 7 environment
reading a
objectives
1 to learn the cause of the greenhouse effect
2 to learn how to be a green consumer

teaching procedure
warming-up
1. cartoon talk
2. show some relevant pictures about the pollution.
before reading
ask the questions below:
1. what do you think of these behaviors to the environment?
2. do you know what other behaviors human beings harm the environment?
during the process, some new words, such as greenhouse effect, atmosphere, cause, food, soil, environmentally friendly, can be imbedded.

while reading
1. ask students to read the first paragraph and the headings in the review. then try to answer four questions:
1. what is the name of the book?
2. a consumer buys and uses things. what do you think a green consumer is?
3. what do you think the main topic of the book is?
4.how many topics does the review cover?
  key:
1. the young green consumer guide.
2. a consumer that only buys and uses “environmentally friendly” things.
3. the main topic of the book is to save earth.
4. 4.

2. scan the rest of the text and then answer the questions below:
1. what lets sunlight in and keeps much of the warmth from getting out?
2. what is making the greenhouse effect worse?
3. what will create mountains of rubbish and pollute our land and seas?
4. what is the book asking us to become?
   key:
   1. the atmosphere around earth.
   2. the burning and cutting down of trees.
   3. our habit of using things once and then throwing them away.
   4. the book is asking us to become “green consumers”.

after-reading:
1. do the exercise in a3.
2. questions: how can we act as green consumers to protect the environment?
3. explain some language points.

學案
reading a
1.根據短文和首字母提示，寫出短文中所缺單詞的正確形式。
  the young green c_____ guide says that our world is in danger because we have many e_____ problems.our first problem is the greenhouse effect.it will c_____ the level of seas to rise and d_____ cities and even whole countries.the second one is the act that people d    rainforests.it will cause f_____ because trees can help hold the s_____ .our last problem is people’s bad habits of using thing s.they throw away everything after they use it once.and this c _____mountains of rubbish and it p_____ our land and sea.
2.用所給單詞的適當形式填空。
1)the professor’s talk was so_____ that i nearly fell asleep.(1ife).
2)the factory near our school lets out a lot 0i_____ gases every day.(harm)