affect 作主语通常是物而不是人,指一物对另一物产生的消极影响。
The tax increaseshave affected us all. 加税已经影响了我们所有的人。《简明英汉词典》
The dampness began toaffect my health. 潮气开始影响我的健康。《新牛津英汉双解大词典》
Your attitude willaffect how successful you are.
你的态度会影响你成功的程度。《新牛津英汉双解大词典》
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。
The labour enthusiasmof the workers strongly influenced us.
工人们的劳动热情强烈地感染了我们。《简明英汉词典》
It's all too easy tobe influenced by our parents. 我们容易受父母的影响。《简明英汉词典》
The weatherinfluences crops. 天气影响农作物。
impact 是不及物动词,对某物有强烈影响(have a strongeffect)(+on)
High interest rateshave impacted on retail spending.
高利率对零售消费产生了剧烈的影响。《新牛津英汉双解大词典》
These costs willimpact on our profitability.
这些费用会影响到我们的利润。《简明英汉词典》
另:have an effect / influence / impacton对……有影响
The surroundings inwhich a child grows up may have an effect on hisdevelopment.
小孩生长的环境会影响他的发展。
He has an activeinfluence over the community. 他对这个社团有很强的影响力。
Technology has had anirreversible impact on society. 技术已对社会产生不可逆转的影响。