阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。 The novel coronavirus pneumonia(新型冠状病毒肺炎）outbreak in China was

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
The novel coronavirus pneumonia(新型冠状病毒肺炎）outbreak in China was caused by a new coronavirus that we have never seen before. ___41___ was first found in the Huanan Seafood Market in Wuhan, ___42___ a variety of wild animals were on sale.People who sold and bought animals ___43___（illegal)were the first to be infected(感染）。Scientists have found that the virus probably ___44___(come)from bats and then was spread to humans from pangolins(穿山甲）。Bats can carry and spread more than 60 viruses,and other wild animals like snakes are also ___45___(host)of many viruses.
There have been calls for people ___46___(stop)eating wild animals.However,the danger also lies ___47___ touching them.Although ___48___(carry)many diseases,the wild animals shouldn't be regarded as evil.Each variety of animal ___49___（have)a role in the ecosystem and all of them are important for keeping ___50___good ecological balance.
【答案】41. It    42. where    
43. illegally    
44. came    45. hosts    
46. to stop    
47. in    48. carrying    
49. has    50. a
【解析】
【分析】
这是一篇说明文。文章介绍新冠状病毒的可能的来源。
【41题详解】
考查it的用法。句意：它最初是在武汉的华南海鲜市场发现的，那里有各种各样的野生动物在出售。此处用it指代The novel coronavirus pneumonia，故填It。
【42题详解】
考查定语从句。句意：它最初是在武汉的华南海鲜市场发现的，那里有各种各样的野生动物在出售。此处Wuhan是先行词，在后面的定语从句中作地点状语，故填where。
【43题详解】