A
(2018·衡阳八中模拟)Tea is one of the 1. (much)popular drinks in the world.You make it by pouring hot water over the dried 2. (leaf)of a tea plant.For hundreds of years people believed that tea could cure illnesses，and they used 3. as medicine.Today scientists know that tea contains chemicals that prevent cells from dying.Most teas have caffeine in them, 4. makes you feel more active.Some people have problems 5. (drink)tea because it can cause sleeplessness.
The tea plant 6. (grow)best in tropical and temperate places where rain falls throughout the year.Teas can be grown from sea level 7. about 2,000 meters，but the best quality grows in higher regions.
Tea comes from the leaves and buds of tea plants.Wild plants can be up to 9 meters high，however，on tea plantations(茶园), 8. ( pull )the leaves 9. (easy)，people cut them back to a bush of about a metre in height.It takes a plant three to five years before it is ready for plucking(采摘)．
A plucker can harvest about 20 kg of tea 10. day.On large tea plantations the leaves are harvested by machines，but the quality of tea is higher when the leaves are plucked by hand.
【答案】 1.most 2.leaves 3.it 4.which 5.drinking 6.grows 7.to 8.to pull 9.easily 10.a/per
