2.Both automobiles and bicycles offer a convenient means of public conveyance, with one of the marked differences between the two centered on pollution caused by the former.
3.Alcohol and tobacco are both highly addictive substances. However, unlike tobacco, which is known to cause cancer, studies indicate that alcohol does offer some health benefits when consumed in moderation.酒和烟都是很容易上瘾的东西。但是，研究显示，与公认为引起癌症的烟不同，酒如果适量饮用确实对健康有益。
4.One man's treasure is another man's junk.
5.AIDS is no longer one of the Top 10 American killers, but the same cannot be said for many countries.
6.A question begging an answer centers on whether violence is more directly related to the innate characteristic of human being, or whether it is simply a manifestation of the ills of society. Determining the answer will be far from an easy proposition, but is nonetheless one that deserves careful and deliberate consideration.
7.From the standpoint of success, a good work ethic is no less important than an education. Success does, in fact, depend on the total integration of both aspects.
8.The growing trend for wives to work outside the home even when their husbands are present and employed is in part a sharing of the financial burden with the husband, and in part a reflection of the need these women feel to have a measurable sense of personal worth.
9.Just as honor is a prerequisite for respectability, so is unblemished character a barometer of integrity.
10.Beauty is in the eye of the beholder and the same is true for both the appreciation of art and music.