语法填空

　　Directions：Complete the following passages by using ONE word for each blank that best fits the context.

　　Passage 1

　　When you take a walk in any of the cities in the West，you often see a lot of people walking dogs.__1__is still true that a dog is the __2__useful and faithful animal in the world，__3__the reason why people keep a dog has changed. In the old days people used to train dogs to protect themselves against animal attacks. And later they came to realize that a dog was not __4__ useful for protection but willing to obey his master. But now people in the city need not protect themselves against attacks of animals.__5__do they keep dogs，then? Some people keep dogs to protect themselves from robbery. But the most important reason is __6__companionship.A dog is his best friend for __7__child when he has no friends to play with. For young couples，a dog is their child when they have __8__ children. For old couples，a dog is also their child when their real children have grown up.

　　【语篇解读】本文主要告诉我们现代人养狗的原因以及狗在人们的生活中所起的作用。

　　1.It　考查代词。从句子结构看，本句中的that引导一个主语从句，所以此处用it充当句子的形式主语。

　　2.most　考查形容词。根据句意及定冠词the判断，此处用形容词最高级修饰animal。

　　3.but　考查并列连词。由上下两句的逻辑关系可知，这里应该填一个表示转折关系的词。

　　4.only　考查not only.。.but (also).。.的搭配 。

　　5.Why　考查引导词。由下面所列举的几条养狗的原因可知此处问的是why。

　　6.for　考查介词。根据下文的意思可知，养狗最重要的原因是为了做伴。for为了，表目的。

　　7.a　 考查冠词。a child 一个孩子，此处表泛指。

　　8.no　考查形容词no修饰名词的用法。由句意及常识可知，对于没有孩子的年轻夫妇来说，狗就是他们的孩子。