资源简介
（友情提示：鼠标拖选单词即时翻译）
Step 2 Listening
Listen to the tape and answer the following questions:
1. What does the passage tell us?
2. What do the words in the first column mean?
Crops grown means how their crops grow. Well or bad?
Fertilizer means what kind of fertilizer they use. Organic or chemical?
Other plant nutrition means maybe, besides those two fertilizers, they still had some more powerful ones.
Listen to the tape and finish the form
Step 3
Get the students to answer:
2 Why do you think the results from the two farmers are so different?
3 Look at the summaries of the story. Decide which is correct and explain why the others are wrong.
Step 4 Listening text
Hand out the listening material , listen to the tape , then complete the passage with the right answers