如果选项中含有形容词或副词的比较级或最高级，或是其他表示比较的词语，则听力材料或问题很可能涉及人或事物之间的异同点或优劣的比较。
四个选项中如均含有比较级或表示比较的词，则表示问题是关于人或事物之间的比较;如其中只有个别选项中含有比较级，则表示听力材料中很可能涉及到人或事物之间的比较，问题内容则不一定会涉及。
【例6】(710分样卷-22)
【预览选项】
[A] Their competitors have long been advertising on TV.
[B]TV commercials are less expensive.
[C] Advertising in newspapers alone is not sufficient.
[D] TV commercials attract more investments.【听前预测】
由选项中的advertising on TV，advertising in newspapers以及比较级 less expensive, attact more可知本题很可能涉及到电视广告和报纸广告之间优劣的比较。故听音时应留意比较级或其他陈述二者优劣特点的词句。
【听音验证】
W: Marketing has some interesting ideas for television commercials.
M: TV? Isn't that a bit too expensive for us? What's wrong with advertising in the papers, as usual?
W: Quite frankly, it's just not enough anymore.
……
22. Why does the woman suggest advertising on TV?
