根据短文内容回答问题。Red Ribbon Week is held every year, usually during the last week of October.

【专家解说】：
小题1:Yes, it is./ Yes.
小题2:For four and a half years./ 4.5 years./ For four years and a half
小题3:He stopped the companies from making drugs.
小题4:To honor “Kiki” Camarena./ To be in memory of “Kiki” Camarena.
Because they wanted to honor the death of “Kiki” Camarena.
Because they wanted to be in memory of “Kiki” Camarena.
小题5:It tells us the background and the purposes of starting Red Ribbon Week.

小题1:根据文中语句Red Ribbon Week has become the largest drug education and prevention organization in the United States.可知答Yes, it is./ Yes. 
小题2:根据文中句子Mexican drug company and stayed there for four and a half years.可知答For four and a half years./ 4.5 years./ For four years and a half。
小题3:根据文中语句His efforts helped put a stop to several major drug making companies.可知答He stopped the companies from making drugs.
小题4:根据文中语句“people in Camarena’s town began wearing red ribbons in his honor.”可知在Camarena的家乡,人们为了纪念他,开始带红丝带.答案不唯一,符合题意即可。
小题5:这篇短文主要给我们讲述了红丝带周的由来.故答:It tells us the background and the purposes of starting Red Ribbon Week.