affect的第三人称单数是：affects。affect的词语用法是v.(动词)affect用作动词的基本意思是“影响”,包含三种意思：①某种强刺激的力量导致发生明确的变化(或好或坏)。②当宾语是health或身体某部分的词时常指“对…发生不良影响”,当主语是疾病等词时常指“感染”。③宾语是人时,指对人的心智和情感发生作用,使之“感动”(常表示同情或忧伤)。affect的意思是vt.影响；感动；作用。
一、详尽释义点此查看affect的详细内容
二、词典解释
1.影响;使改变
If somethingaffects a person or thing, it influences them or causes them to change in some way.
e.g. Nicotine adversely affects the functioning of the heart and arteries...
尼古丁会对心脏及动脉功能造成损害。
e.g. More than seven million people have been affected by drought.
已有超过700万的民众受到旱灾的影响。
2.（疾病）侵袭，感染
If a diseaseaffects someone, it causes them to become ill.
e.g. Arthritis is a crippling disease which affects people all over the world.
关节炎是一种会危害全人类健康的致残性疾病。
3.（感情上）打动，震动，使悲伤（或怜悯）
If something or someoneaffects you, they make you feel a strong emotion, especially sadness or pity.
e.g. The divorce affected Jim deeply...
离婚对吉姆打击很大。
e.g. Gregor loved his sister, and her loss clearly still affects him.
格雷戈尔爱他的姐姐，她的去世显然仍令他悲伤不已。
4.假装；佯装；装出…的样子
If youaffect a particular characteristic or way of behaving, you pretend that it is genuine, or natural for you.
e.g. He listened to them, affecting an amused interest...
他装作饶有兴致地听他们说话。
e.g. Ms. Redgrave affects a heavy Italian accent.
雷德格雷夫女士假装带有浓重的意大利口音。
三、网络解释
1. 影响;感动：aerosol 烟,雾;烟雾剂 |affect 影响;感动 | affiliate 接纳...为会员(或分支)
四、例句
How does interest rate affect the price of bonds?
利率如何影响债券的价格?
She was deeply affected by the sad story.
她深深被那个悲伤的故事感动了。
His charm doesn't affect or impress me.
他的魅力对我不起作用.
五、词汇搭配
六、经典引文
Some affect to have it fry'd a little broun and crisp.
出自：Evelyn[He]..did not much affect the Major.
出自：R. KiplingMaking peace or war As thou affects.
出自：Anthony Cleopatra,Shakespeare七、词源解说
affect的相关近义词
impact、impress、infect、move、touch
affect的相关临近词
affectation、affairs work、affectoi、affect to、affecting、affectless、affectingly、affectivity、affectlessly、affect using、affect block、affect study