题型：语法填空（语篇） 题类：常考题 难易度：困难
四川省成都市双流中学东校区2017-2018学年高二下学期英语期末适应性考试试卷考试试卷
Tea is one of the most popular (drink) in the world. You make it by pouring hot water over the (dry) leaves of a tea plant. For centuries people believed that tea could cure illnesses, and they used it as medicine. Today scientists know that tea contains chemicals that prevent cells from (die). Most teas have caffeine in them, a substance that makes you feel more active. Some people have problems drinking tea because it can cause (sleep).
The tea plant grows best in tropical and temperate places rain falls throughout the year. Tea plants can be grown from sea level about 2,000 meters above sea level, but the best quality grows in higher regions.
Tea(come) from the leaves and buds of tea plants. Wild plants can be up to 9 meters high but on tea plantations they (cut) back to a bush of about a meter in height so that workers can pull the leaves (easy). It takes a plant tree to five years before it is ready for picking.
A picker can harvest about 20 kg of tea a day. On large tea plantations the leaves are harvested by machines, the quality of tea is higher when the leaves are picked by hand.
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