Word · Frequency #28709
infective
传染性的；感染性的
able to cause disease
多用于医学或生物学语境
- 1.
Able to cause infection; infectious
能引起感染的；传染性的
能引起感染的；传染性的；有传染性的；易传染的；[医] 传染性的；感染性的
In use
The virus is most infective during the first few days of illness.
Doctors wear masks to avoid breathing in infective droplets.
If the water is not cleaned, it may contain infective bacteria.
be infective
be infective 表示“具有传染能力”的主系表结构。
The virus is highly infective.
这种病毒的传染性很强。
infective + noun
infective 作定语修饰名词，如 infective disease（传染病）。
They studied the infective agent.
他们研究了这种传染性病原体。
become infective
become infective 强调状态转变。
The bacteria become infective after incubation.
这些细菌在潜伏期后变得具有传染性。
Common mistakes
His wound is infective, so he needs antibiotics.His wound is infected, so he needs antibiotics.
infective 意为“能引起感染的、有传染性的”，表示主动的致病能力；而“被感染、受了感染”应用过去分词形容词 infected，表示被动的状态。二者语义方向相反，不能混用。
The virus can infective people easily.The virus can infect people easily.
infective 是形容词，不能直接作谓语动词。表示“感染”这一动作必须用动词 infect；若需修饰名词才用 infective，如 an infective agent。
Connections
Collocations
- infective agent
- 传染性病原体
- The infective agent was identified in the water supply.在水源中鉴定出了这种传染性病原体。
- infective disease
- 传染病
- Vaccination protects against many infective diseases.疫苗接种可预防许多传染病。
- infective dose
- 感染剂量
- A very small infective dose of the virus can cause illness.极少量的病毒感染剂量就能致病。
- infective endocarditis
- 感染性心内膜炎
- Infective endocarditis is a serious heart condition.感染性心内膜炎是一种严重的心脏疾病。
- infective stage
- 感染期
- The parasite's infective stage enters the human host through the skin.寄生虫的感染期通过皮肤进入人体宿主。
- infective material
Learner notes
Memory Tip
想象一个病毒瓶标签上写着'INFECTIVE'，里面的病菌能侵入人体引起疾病，用它来记住'传染性的'。
Context & Register
语域：formal 常见场景：医学、专业文献 infective 通常用于医学或专业语境，表示“能引起疾病的；传染性的”，比较正式；日常交流中更常用 infectious。
Pronunciation & Spelling
以上词均以 /-ɛktɪv/ 结尾，重音在倒数第二个音节，与 infective 押韵。注意 inventive（/ɪnˈvɛntɪv/，有创造力的）拼写近似，但结尾是 /-ɛntɪv/，与 infective 不押韵。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.