约660字。
　　Unit 2 The Environment
　　Task---教案
　　Teaching plan:
　　Teaching aim and demands : 1 help the students to listen and draw conclusions
　　2 train the students’listening
　　3 help the students to read for information
　　4 help the students to read a scientific article
　　5 help the students to present your point of view
　　6 design a poster
　　Teaching procedures
　　Sep1 Silding 1 :
　　In this part , students will learn how to draw conclusions from listening to something .Explain to students that in order to draw conclusions , they need to thint the situation and the information they have and then try to decide what it means .
　　1 Ask the students to read the guidelines and the dialogues in silding on Page 32 , Ask them to draw conclusions from what is said in the dialogues and you can create more dialogues and asdents to draw some conclusions.
　　2 Asdents to read the instructions in Part A . Then play the recording once and asdents to draw a conclusion about what kind of natural disaster occurred in each situation . Ask them why they have drawn this conclusion . Then play the recording onore and check the answers as a class .
　　3 Tell the students to listen to the tape and plete Part B . Ask them to choose which of the conclusions are logical and to state their reasons .
　　Step 1 : Listening to a lecture
　　1. Asdents to listen to the tape
　　2. Encourage the students to fully participate in the situation and express their opinions freely .
　　3. Play the tape once .
　　4. Ask several students to read one answer each .