(people need more meat and fruits; farmers need more farmland to grow different crops and produce different foods; farmers need to raise more poultry(家禽), etc. )

　　4. Teacher sum up in a few words

　　T: “In words, changes in agricultural produce shows that our living habit and eating habit has improved. Farmers have a different and happy life because they can grow different crop to meet people’s need.”

　　Step II  Listening

　　1. lead- in

　　T: “ I often find the expression ‘return grain plots to forestry’ in newspapers, do you know what does it mean in Chinese? ” (teacher write the expression on the blackboard)

　　Ss: “ In Chinese, ‘退耕还林’.”

　　T: “ Why do you know farmers should do so? ”

　　Ss: “ They must protect forests. / in order to protect forests. ”

　　T: “ Have you even had experience of sandstorm in Beijing ? how about sandstorm? ”

　　Ss: “yes , it is so terrible weather.”

　　T: “ What cause sandstorm? ”

　　Ss: “ Many forests are destroyed, the environmental problems is serious.”

　　T: “How can farmers make the land fertile?”

　　Ss: to use chemical fertilizers to improve the soil.

　　…

　　2. T introduce: “ We will hear a short text. The listening text is about the history of farming, some of its problems and some solutions or alternatives to these problems.”

　　3. let Ss listen to the tape the first time, without taking notes. Then, ask them to look at Exercise 1. Make sure they understand all the words. Then, ask the students to listen again, and tick the items the listening text is about.

　　4. let Ss listen to the tape again and ask them to finish Exercise 2.

　　5. get Ss listen to the tape for third time and fill in the blank in the Exercise 3.

　　6. If time permitted, teacher can get Ss to listen another listening text and do some exercises.

　　7. If time permitted, teacher get Ss to finish the exercises in Workbook/ Listening (page 107)

　　Step III. Speaking

　　1. Group Work: get Ss to work in groups and divide Ss into groups of five. Each group , each topic. Let them act as each role. And discuss why we should grow wheat/ sugarcane/ wheat/ trees or raise pigs.

　　2. let Ss make sentences using the following expressions:

　　In my opinion you should…

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