They devise hundreds of competitions which will enable us to win huge sums of money. Radio and television have made it possible for advertisers to capture the attention of millions of people in this way.

　　During a radio programme, a company of biscuit manufacturers once asked listeners to bake biscuits and send them to their factory.

　　7.They devise hundreds of competitions which will enable us to win huge sums of money.

　　他们设计数以百计的竞赛，竞赛中有人可赢得巨额奖金。

　　语言点1:句子结构分析:which引导定语从句，修饰competitions。

　　语言点2:enable sb.to do sth.“使某人能够做某事”。

　　8.Radio and television have made it possible for advertisers to capture the attention of millions of people in this way.

　　电台、电视使做广告的人可以用这种手段吸引成百万人的注意力。

　　语言点:句子结构分析:请特别注意，it在本句中充当的是形式宾语，真正的宾语位于其后—to capture the attention of millions of people。

　　9.During a radio programme, a company of biscuit manufacturers once asked listeners to bake biscuits and send them to their factory.

　　有一次，在之声播放的节目里，一个生产饼干的公司请听众烘制饼干送到他们的工厂去。

　　语言点:句子结构分析:of biscuit manufacturers作company的后置定语。To bake biscuits作listeners的宾语补足语。To their factory作them(指“饼干”)的宾语补足语。