语法填空

        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。

         The Asian elephant is     1     largest land mammal on the Asian continent. They live in forest and grassland habitats in more than ten     2     (country) in Asia. While they have preferred forage(饲料) plants, Asian elephants are used to     3     (survive) on resources that vary in different areas.

         Asian elephants are     4     (extreme) sociable, forming groups of six to seven related females     5     are led by an old female. Like African elephants, these groups sometimes join others     6     (form) larger herds, but these associations are relatively short-lived. In Asia, elephant herd sizes are much     7     (small) than those of savanna elephants in Africa. Although an elephant spends half a day on the grass, it can also eat large amounts      8     tree bark, roots, leaves, and small stems. Cultivated crops such as bananas, rice and sugarcane are favorite foods. Elephants are always close to a source of fresh water     9     they need to drink at least once a day.

       In some Asian areas, people     10     (have) close associations with elephants over many centuries, and elephants have become important cultural symbols.

【答案解析】 这是一篇说明文。文章主要介绍了亚洲象的生活习性以及和人类的关系。

1．the。考查冠词。结合语境以及空后的最高级largest可知，空处应用定冠词the。

2．countries。考查名词的数。country为可数名词，结合空前的ten可知，此处应用复数形式countries。

3．surviving。考查非谓语动词。be used to doing sth.表示"习惯做某事"，故填surviving。

4．extremely。考查副词。空处修饰形容词sociable，故此处应用副词extremely。

5．which/that。考查定语从句的关系词。分析句子结构可知，空处引导定语从句，其先行词为groups，指物，且在从句中作主语，故用which/that。

6．to form。考查非谓语动词。分析句子结构可知，此处在句中作目的状语，故填to form。

7．smaller。考查形容词的比较级。结合空后的than及空前的much可知，此处应用比较级smaller。

8．of。考查介词。large amounts of为固定用法，意为"许多"，故填of。

9．because/as/for。考查原因状语从句的引导词。根据语境可知，空处前后的内容在逻辑上存在因果关系，且空后内容为空前内容的原因，故空处应填because/as/for。

10．have had。考查动词的时态。分析句子结构可知，空处在句中作谓语，再结合句中over many centuries可知，空处用现在完成时，故填have had。