时，物作主语，无被动形式，故用现在完成时。

　　6．What 考查主语从句的连接词。空处引导了一个主语从句，且在主语从句中作主语，表示"......的事情"，所以用what。

　　7．who/that 考查定语从句的引导词。空处引导一个定语从句，且替代先行词two lovers，在从句中作主语，故用who/that。

　　8．When 考查连词。空处引导-个时间状语从句，且表示"当......时候"，故用when。

　　9．realistic 考查词性转换。此处需要一个形容词，与前面的"fantastic"并列。

　　10．reflecting 考查非谓语动词。此空为现在分词作伴随状语。

　　Ⅳ.短文改错

　　Nowadays many people cross the streets without watching traffic light. So traffic accidents often happen to those don't obey the traffic rules. It has been the serious problem. Why don't they obey the rules? Because some of them lack of traffic rule awareness. And most of them are busy go to work. But what can we solve the problem? First of all, we must obey the traffic rules. Secondly, whoever break the traffic rules should be punished. At last they should teach kids how to cross the streets safely. Unless we do like that, we will have fewer and fewer traffic accidents. And we would live a happier life.

　　答案：

　　Nowadays many people cross the streets without watching traffic . So traffic accidents often happen to those don't obey the traffic rules. It has been serious problem. Why don't they obey the rules? Because some of them lack traffic rule awareness. And most of them are busy to work. But can we solve the problem? First of all, we must obey the traffic rules. Secondly, whoever the traffic rules should be punished. At last should teach kids how to cross the streets safely. we do like that, we will have fewer and fewer traffic accidents. And we live a happier life.

　　难项分析：

　　第二处：those后加who 考查定语从句的引导词。分析句子结构可知，those作先行词且指人，故用who引导定语从句，修饰those，意为"不遵守交通规则的人们"，且关系代词在句中作主语，不能省略。

　　第六处：what→how 考查疑问词。分析句子结构可知，动词solve之后有宾语，因此不用what，需用表示方式的副词how引导该疑问句。

第七处：break→breaks 考查主谓一致。whoever相当于anyone who，在句中作主语时谓语动词应用单数形式。