9．For several years．A computer game"Happy farm"has been popular among Chinese people．Today，many Chinese have their own，real，Happy Farms．
A Farm of Her Own
It is Saturday．Yan Zhen is leaving for her grounds at edge of Beijing．She rents a piece of farmland for eight hundred yuan per year in the happy farm in the west of Beijing，an area of fifteen square meters．
If you're not good at farming，you can pay a farmer to care for the land，and you just pick the vegetables and visit the countryside with your friends or family on weekends．However，on some other farms，you just bring your basket and pick the fruits and vegetables you want before paying money．
Concern about Food safety
"I think we Chinese have been，troubled by problems of food safety，when you have planted your own vegetables，and you know what fertilizers（肥料） have you been used，and picked them with your own hands，this is very safe．"Yan Zhen said．
The Happy Farm
Older people often remember that many years ago farm products were untreated and food was clean，but now they are worrying about the poor food quality．Some of them find on these farm a means to help the community and to better feed the family．some of them start gardening for their pregnant（懷孕）daughters to protect the health of the mother and child．On the other hand，some parents want to teach their children the value of work and healthy foods on a farm．
56．If you aren't good at farming，you canA．
A．Pay a farmer to take care of the Land．
B．Pick the vegetables for free．
C．Ask a friend to help you．
D．Rent the land to others．
57．We can learn from the 4th paragraph thatB．
A．We must know how to use fertilizers．
B．We must plant vegetables with our own hands．
C．Chinese are worried about food safety．
D．Picking vegetables can make us safe．
58．The underlined word"untreated"probably meansDin Chinese．
A．未種植的
B．未治療的
C．未實現(xiàn)的
D．未處理的
59．Some parents want to teach childrenD．
A．The importance of food．
B．The quality of food．
C．The advantages of farm．
D．The value of work．
60．The writer write the second paragraph mainly to tell us that Yan zhenC．
A．wants to be a foreigner．
B．rents a piece of farm．
C．lives in the west of Beijing．
D．builds a house of fifteen square meters．
