Language points Para1. It is on this arable land that the farmers produce food for the whole population of China. 就是在这些耕地上，农民们生产了供全国人口的粮食。 强调句的结构： It is/was+强调部分＋that（人物也可用who)+句子其他部分 Jia Sixie wrote a book called Qimin Yaoshu around 540 AD. 是贾思勰在公元540年左右写了一本叫《齐民要术》的书。 是在公元540年左右， 贾思勰写了一本叫《齐民要术》的书。 贾思勰在公元540年左右，写的是一本名叫《齐民要术》的书。 翻译：1.是村长决定农田该种什么？ 2...

Unit 19 Modern agriculture 短语: bring in as well as protect … from a variety of have an effect on over the years（在这几年里） make use of in the 1980s be different from stand for in other words go against make good money 1.________________________________ (尽可能充分利用土地）two or more crops are planted each year ________________(在可能的地方). To make as much use of the land as possible where possible 2.Food production is not only i..