1.People who usually cannot afford it are the biggest tippers in front of their friends.

2.Many analysts suggest that this added pressure disproportionately touches the women, who already carry major responsibility for their own children.

3.Perhaps the most important issue that emerges from the social trends just described is the impact of family instability and single parenting on children.

4.When this happens, the government should decrease the salaries of the workers by raising taxes.

5.While this might appear to be a positive step, it is actually regressive.

答案：

1.往往是那些付不起大额小费的人在朋友面前付小费方。

2.许多分析家认为，对于那些已经承担了繁重的养儿育女责任的妇女们来说，这无疑是雪上加霜。

3.也许上述社会倾向所产生的重要的问题是家庭的不稳定性及单亲家庭对儿童的影响。

4.当这种情况发生时，政府应该通过增税来减少工人的工资。

5.尽管这样做表面上看是一种积极的措施，可实际上却是消极的。

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