来源：互联网 2012-04-16 14:00
811. Because of the warm and sunny weather, oranges grow very well here.
812. In this flat country people grow wheat and corn and raise cattle.
813. The ground around here is stony and not very good for farming.
814. What are the principal farm products in this region?
815. Milk, butter, and cheese are shipped here from the dairy farms.
816. They had to cut down a lot of trees to make room for farms.
817. At this time of the year farmers plow their fields.
818. On many farms you'll find cows and chickens.
819. If you have cows you have to get up early to do the milking.
821. In the United States, there are many factories for making cloth.
822. Factories employ both male and female workers.
823. If you work in a factory, you usually have to punch a clock.
824. Is meat packing a big industry in your country?
825. Is it true that manufacturing of automobiles is a major industry?