1 . 语法填空

Because the mass media reaches so many people, it is a perfect vehicle for advertisers. If an advertisement is placed on a popular website or on TV     1     peak times, a huge number of people will know about the product or service it is advertising. In addition     2     making people aware of a product or service, a successful advertisement will also create a desire to buy，thus     3     (boost) business. ①That is why when a company wants to promote a product or service, it often launches a mass media advertising campaign.

汉译英
高峰时期，黄金时段     4                   许多，大量     5    
使增长     6                             另外，加之，除……之外(还)     7    
句式分析
句式①中 why 引导     8     从句。句意     9    
指点迷津
That is why...意为 那就是为什么……   why 引导表语从句
That’s because...那是因为…… because 从句表示原因
The reason why...is/was that...          ……的原因是……
3.用适当的词填空
That’s     10     I’m writing to apply for the job.(用适当的词填空)
The reason     11     Tom came late for the meeting was     12     he was ill. (用适当的词填空)