今天给学生讲托福综合写作TPO21 Genetic modification（基因改良）的时候，需要用到benefit和beneficial这些单词，但是ta不会用。好吧，那我一次把他们俩的基础用法讲完。
留意下文中黑体部分，是它们搭配的动词和介词。下文中的例句都选自国外网站，这是为了避免用中式英语的句子误导读者。
(1)benefit1 作名词
A. Freedom of informationbringsgreat benefits.信息自由带来巨大的好处。
B. The project willhavemajor benefitsforthe local community.这个项目对当地会有巨大的好处。
C. I've had the benefitofa good education.我已经享受了好的教育带来的好处。
D. We believethere areboth benefits and challengestoan investment in Man Group.我们认为投资Man Group既有好处又有挑战。
E. I've been on TV over a 100 times, and there are a great many benefits to it.我上电视超过100次了，这有很多好处。
2 作动词
1) 及物动词
A. We should spend the money on something that will benefit everyone.我们应该把这些钱花在对每个人都有好处的地方。
B. The new tax laws will clearly benefit those on low wages.新的法律明显有益于低薪人群。
C. The project will benefit the local community as a whole.这个项目将会有益于当地整体。
2) 不及物动词
A.Do children benefitfromlearning about diversity and tolerance at an early age?孩子早接触多样性和宽容有好处吗？
(2)beneficial
A. Researchers also might try to grow beneficial bacteria on the skin of the frogs.研究人员也可能尝试在青蛙的皮肤上培养有益的细菌。
B. A good diet is beneficialtohealth.好的饮食对健康有益。
C. This may also be beneficialforthose diagnosed with colon cancer later in life.这可能对患有结肠癌的人的后期生活有好处。
