harm on an animal in order to feel more powerful or gain control.

　　语篇解读：本文是说明文。动物也有自己的权利，人们对动物的虐待有两种形式，即被动虐待和主动虐待。文章呼吁人类应该给予动物同情心，多关爱它们。

　　1．Left　leave与其逻辑主语they之间构成被动关系，故用过去分词。

　　2．as　根据语义可知，此处的as引导了一个原因状语从句，表示"因为"。

　　3．are found　根据语境，指一些动物被发现，得到了救助，是被动意义。

　　4．lucky　指与前面那些被救助的动物相比，有的动物就不那么幸运了，故使用形容词lucky。

　　5．us　结合后面的"if we don't"可知，此处表示"我们"应该为动物争取权利。

　　6．steps　根据前面的"one of"可知，后面的名词应用复数形式。

　　7．less　根据语义可知，表示"好像这种情况不是那么严重"，有比较的意义，故填less。

　　8．to　lead to表示"导致，造成"。

　　9．disturbing　主语是active cruelty，指物，故填disturbing意为"令人不安的"。

　　10．purposefully　此处填副词作状语。

　　Ⅱ.短文改错

I didn't realize the value of sharing until I fail in the exam last term.During that time I studied on my own, fear that studying with my classmates might disturb me and make me pay less attention on my study.As a result, I had little communication with my classmates.Then my teacher had a long talk with me, telling me importance of sharing with others.I followed her advise and began to share my learning experience with my classmates and learn from her at the same time.Gradual I caught up with them but did well in the exam this term.It was sharing that made me to achieve such