知识点拓展精讲
拓展：effect affect influence impact 辨析
① effect 侧重影响的结果-多用作名词
例句：The drug did not affect the disease, and it had several adverse side effects.
② affect 带来结果-多用作动词
Does second hand smoke affect the health of all of us?
③ influence 侧重在思想、性格、行为等方面所产生的潜移默化的影响，也可指自然力的影响。
It's all too easy to be influenced by our parents. 我们容易受父母的影响。
The weather influences crops. 天气影响农作物。
④ impact 对某物有强烈影响
Miss Jack believes her experiment could have an impact on the environment.
杰克小姐认为她的实验会对环境有一定的影响。
