Unit 4 Pygmalion grammar课时作业

Ⅰ.单项填空

　　1．The government ________ air quality in urban areas from level one to level five: excellent, fairly good, slightly polluted, poor and dangerous.

　　A．classifies B．arranges

　　C．distributes D．divides

　　解析：选A　句意：政府把城市地区的空气质量分为5个等级：优秀、好、轻度污染、很差和危险。根据语境可知classify"将......分类"正确。arrange"安排，准备"；distribute"分配，散布"； divide"分成"，强调把整体分成几部分。

　　2．Any attempts to convince farmers of the necessity of environmental ________ must take all these factors into account.

　　A．conservation B．reservation

　　C．consumption D．assumption

　　解析：选A　句意：任何使农民相信保护环境必要性的尝试都必须要考虑到这些因素。conservation"保护，保存"； reservation"预留，保留"； consumption"消费，消耗"； assumption"假定，假设"。根据语境可知A项正确。

　　3．Naylor________， in a letter to his teacher, that he was addicted to the Internet.

　　A．acknowledged B．received

　　C．appreciated D．classified

　　解析：选A　句意：在给老师的一封信中，Naylor承认了他对网络有瘾。acknowledge"承认，认可，感谢"；receive"收到，接受"；appreciate"欣赏，感激"；classify"分类"。

　　4．Faced with a problem, you have to ________ it first, and then try to find a solution.

　　A．resemble B．substitute

　　C．concentrate D．analyse

　　解析：选D　句意：面对问题，你必须先分析，然后尽力找出一个解决方法。resemble"看起来像"；substitute"代替"；concentrate"集中"；analyse"分析"。根据语境可知D项正确。

　　5．-Oh, no! We're too late. The train ________.

　　-That's OK. We'll catch the next train to London.

　　A．was leaving B．had left

　　C．has left D．has been leaving

解析：选C　句意："哦，不！我们来得太晚了。火车已经开走了。""没关系。那我们就赶下一趟去伦敦的火车吧。"根据对话的情景可知此处应该是表达过去的一个动作对