Period 1 Warming up &speaking 锄禾日当午汗滴禾下土谁知盘中餐粒粒皆辛苦 Sympathy for the peasantsWhen crops are worked at noon, It is sweat that moistens the soil.Who stops to think, before a bowl of food,That every grain comes only through long toil? Cao Xueqin 0%10%20%30%40%50%60%70%80%90%GrainCottonOilSugarMeatFishFruitGrowth of major farm products1991-95 compared with 1986-90 percentage. Task 2: warming up 0%10%20%30%40%50%60%70%80%90%GrainCottonOilSugarMeatFishFruit Why do we produce more farm products than before? Do you think what cause these changes? In newspapers , we find the expression “return grain plots to forestry”, that is, to turn fields back to plant trees. Why should we do so? What effects do you think the changes in eating habits will have on agriculture or nature? have an effect on 对……产生影响 In newspapers , we find the expression “return grain plots to forestry”, that is, to turn fields back to plant trees. Why should we do so?Eating habitsAgricultureNature Task 4: Listening In newspapers , we find the expression “return grain plots to forestry”, that is, to turn fields back to plant trees. Why should we do so?To protect forests . 2) While listening1 Listen to the tape. The passage you hear talks about ( ) history of farming ( ) farmers in America ( ) fishing ( ) protection of nature ( ) farmers in China ( ) pigs ( ) environmental problems ( ) trees ( ) dikes2 Which of the following sentences are true & which are false?1 In early times farmers in China moved around & burnt forests. ( )2 All farmers in South America burn forests to create farmland. ( )3 Flood & droughts are disasters that farmers cannot stop. ( )4 Some of the land in China is too wet to grow...