1
be an arsonist
用 be 动词加不定冠词和名词表示身份或属性。
He was proven to be an arsonist.
他被证明是纵火犯。
纵火犯；放火犯
先理解核心含义，再看它在真实句子里的用法。
纵火犯；放火犯
a criminal who illegally sets fire to property
He was proven to be an arsonist.
他被证明是纵火犯。
犯有纵火行为或非法放火烧毁财产的人。
One who has committed the act of arson, or illegally setting fire to property.
纵火犯
a criminal who illegally sets fire to property
The arsonist was arrested after setting fire to the abandoned warehouse.
那名纵火犯在放火烧了废弃仓库后被捕。
Police are still searching for the arsonist who started the forest fire.
警方仍在搜捕引发森林火灾的纵火犯。
She wrote a book about how the arsonist was finally caught.
她写了一本关于那个纵火犯最终如何被抓获的书。
用 be 动词加不定冠词和名词表示身份或属性。
He was proven to be an arsonist.
他被证明是纵火犯。
who/that 引导的定语从句修饰 arsonist，提供限定信息。
The arsonist who set the school on fire was sentenced to ten years.
纵火烧学校的那名纵火犯被判处十年徒刑。
there be 句型表示某处存在某人或某物。
There is an arsonist in this area, so stay alert.
这个地区有一个纵火犯，请保持警惕。
Not this
He is arsonist.
Use this
He is an arsonist.
arsonist 是可数名词单数，其发音以元音 /ɑ/ 开头，所以前面需要不定冠词 an。中文没有冠词，学习者容易漏掉。
Not this
The arsonist motive was revenge.
Use this
The arsonist's motive was revenge.
arsonist 和 motive 之间需要所有格 's 来表示“纵火犯的动机”。中文常用语序或“的”来表达所属关系，英文则需用 's。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
连环纵火犯
The police are searching for a serial arsonist in the suburbs.
警方正在郊区搜寻一名连环纵火犯。
已定罪的纵火犯
A convicted arsonist was released from prison last month.
一名已定罪的纵火犯上个月出狱。
纵火嫌疑人
The suspected arsonist was questioned by detectives for eight hours.
纵火嫌疑人接受了侦探八小时的讯问。
被指控的纵火犯
The alleged arsonist will appear in court tomorrow.
被指控的纵火犯明天将出庭。
抓获纵火犯
Residents are begging the police to catch the arsonist quickly.
居民恳求警方尽快抓获纵火犯。
我是纵火犯，我就是汽油。
Halsey's 2015 song "Gasoline" from her album Badlands.
出自海尔希2015年专辑《Badlands》中的歌曲《Gasoline》，她把自己比作危险、一点就燃的东西。
Use arsonist naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
回想 arson（纵火）加表示人的 -ist：阿森（arson）放火烧房，被抓后被称为纵火犯。
语域：neutral 常见场景：新闻报道、警方案件、法律文书 “arsonist”是中性词，既不正式也不俚语，通常用于新闻报道、警察或法律语境，日常交谈中也可以使用。
没有常用词与 arsonist /ˈɑrsənəst/ 完全押韵。arson /ˈɑrsən/ 与其读音最接近（共享 /ˈɑrsən/ 部分）；artist /ˈɑrtɪst/ 也以 /ˈɑr/ 开头，但结尾不同。像 columnist、tourist 这样的词拼写结尾都是 -ist，但发音为 /ɪst/ 或 /rɪst/，与 arsonist 的 /əst/ 不一样。
Dictionary facts from ECDICT, WIKTIONARY.