阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Tea is one of the 61.________(much) popular drinks in the world. You make it by pouring hot water over the dried leaves of a tea plant. For 62.________(hundred) of years people believed that tea could cure illnesses，and they used 63.________ as medicine. Today scientists know that tea contains chemicals that prevent cells from dying. Most tea has caffeine in it 64.________ makes you feel more active. Some people have problems 65.________(drink) tea because it can cause sleeplessness.
The tea plant 66.________(grow) best in tropical and temperate places where rain falls throughout the year. Tea can be grown from sea level 67.________ 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，68.________(pull) the leaves 69.________(easy)，people cut them back to a bush of about a meter in height. It takes a plant three to five years before it is ready for picking.
A picker can harvest about 20 kg of tea 70.________ day. On large tea plantations the leaves are harvested by machines，but the quality of tea is higher when the leaves are picked by hand.
【语篇解读】 本文是一篇说明文，介绍了有关茶的功效、生长环境等知识。
61．most 考查最高级。根据空前面的one of和定冠词the可知，此处需要用形容词的最高级形式。
62．hundreds 考查数词。hundreds of数以百计的。
63．it 考查代词。use后缺少宾语，因此此处需要用it作宾语，代替tea。
64．which 考查关系代词。此处需要用which引导非限制性定语从句，which在从句中作主语。
65．drinking 考查非谓语动词。have problems/difficulty (in) doing sth.做某事有困难。
66．grows 考查时态。根据全文整体时态可知，此处需要用一般现在时。主语是第三人称单数，因此填grows。
67．to 考查介词。from ...to ...从……到……。
68．to pull 考查非谓语动词。根据句意可知，此处需要用不定式作目的状语。为了容易采茶叶，人们把它们修剪成大约一米高的灌木。
69．easily 考查副词。所填词修饰pull，故填副词。
70．per/a/every/each/one 考查固定表达。per/a/every/each/one day表示“一天”。
【高频词汇】 pour v．倾倒；倒(饮料等) cure v．治愈 chemical n．化学物质 caffeine n．咖啡因 tropical adj.热带的 temperate adj.温带的 bud n．芽 plantation n．种植园
【长难句式】 On large tea plantations the leaves are harvested by machines，but the quality of tea is higher when the leaves are picked by hand.
分析：but后面的分句中when引导状语从句。
Tea is one of the 61.________(much) popular drinks in the world. You make it by pouring hot water over the dried leaves of a tea plant. For 62.________(hundred) of years people believed that tea could cure illnesses，and they used 63.________ as medicine. Today scientists know that tea contains chemicals that prevent cells from dying. Most tea has caffeine in it 64.________ makes you feel more active. Some people have problems 65.________(drink) tea because it can cause sleeplessness.
The tea plant 66.________(grow) best in tropical and temperate places where rain falls throughout the year. Tea can be grown from sea level 67.________ 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，68.________(pull) the leaves 69.________(easy)，people cut them back to a bush of about a meter in height. It takes a plant three to five years before it is ready for picking.
A picker can harvest about 20 kg of tea 70.________ day. On large tea plantations the leaves are harvested by machines，but the quality of tea is higher when the leaves are picked by hand.
【语篇解读】 本文是一篇说明文，介绍了有关茶的功效、生长环境等知识。
61．most 考查最高级。根据空前面的one of和定冠词the可知，此处需要用形容词的最高级形式。
62．hundreds 考查数词。hundreds of数以百计的。
63．it 考查代词。use后缺少宾语，因此此处需要用it作宾语，代替tea。
64．which 考查关系代词。此处需要用which引导非限制性定语从句，which在从句中作主语。
65．drinking 考查非谓语动词。have problems/difficulty (in) doing sth.做某事有困难。
66．grows 考查时态。根据全文整体时态可知，此处需要用一般现在时。主语是第三人称单数，因此填grows。
67．to 考查介词。from ...to ...从……到……。
68．to pull 考查非谓语动词。根据句意可知，此处需要用不定式作目的状语。为了容易采茶叶，人们把它们修剪成大约一米高的灌木。
69．easily 考查副词。所填词修饰pull，故填副词。
70．per/a/every/each/one 考查固定表达。per/a/every/each/one day表示“一天”。
【高频词汇】 pour v．倾倒；倒(饮料等) cure v．治愈 chemical n．化学物质 caffeine n．咖啡因 tropical adj.热带的 temperate adj.温带的 bud n．芽 plantation n．种植园
【长难句式】 On large tea plantations the leaves are harvested by machines，but the quality of tea is higher when the leaves are picked by hand.
分析：but后面的分句中when引导状语从句。
