B2 adjective 中性

Infectious

/ɪnˈfek.ʃəs/

Describing a disease or disease-causing organism that is likely to be transmitted to people or organisms through the environment.

例句

3 / 5
1

Be careful, this flu is very infectious.

Watch out, this illness spreads easily from person to person.

2

The ward is strictly for patients with infectious diseases.

This hospital area is only for people with illnesses that spread.

3

Her enthusiasm is totally infectious!

Her excitement makes everyone else excited too (metaphorical).

词族

名词
infection
Verb
infect
副词
infectiously
形容词
infectious
💡

记忆技巧

Infectious = 'In' (inside) + 'fect' (make) — it 'makes' its way 'inside' others.

快速测验

Chickenpox is a highly ____ disease common among children.

正确!

正确答案是: infectious

例句

1

Be careful, this flu is very infectious.

everyday

Watch out, this illness spreads easily from person to person.

2

The ward is strictly for patients with infectious diseases.

formal

This hospital area is only for people with illnesses that spread.

3

Her enthusiasm is totally infectious!

informal

Her excitement makes everyone else excited too (metaphorical).

4

The study examines the spread of infectious agents in urban environments.

academic

The research looks at how germs spread in cities.

5

We need to limit infectious contact in the office during peak flu season.

business

We must reduce how much germs spread at work when flu is common.

词族

名词
infection
Verb
infect
副词
infectiously
形容词
infectious

常见搭配

infectious disease an illness that spreads
highly infectious spreads very easily
infectious agent a germ that causes disease
infectious laughter laughter that makes others laugh
infectious ward a hospital room for spreading illnesses

常用短语

infectious waste

trash that contains germs

period of infectiousness

the time when you can spread a disease

infectious smile

a smile that makes others smile

容易混淆的词

Infectious vs contagious

Contagious means spread by touch; infectious means spread by germs (often through air/water).

📝

使用说明

Commonly used both literally for diseases and figuratively for emotions like laughter or excitement.

⚠️

常见错误

Learners often use 'infective' instead of 'infectious', but 'infectious' is much more common.

💡

记忆技巧

Infectious = 'In' (inside) + 'fect' (make) — it 'makes' its way 'inside' others.

📖

词源

From Latin 'infectiosus', from 'inficere' (to taint or dye).

语法模式

highly infectious infectious to (someone)

快速测验

Chickenpox is a highly ____ disease common among children.

正确!

正确答案是: infectious

更多health词汇

under the weather

B1

To feel slightly ill, unwell, or not as healthy as usual. It is typically used for minor ailments like a cold, headache, or general exhaustion rather than serious medical conditions.

doctor

A1

A doctor is a person who has been trained in medicine and is qualified to treat people who are ill or injured. They examine patients, give advice on health problems, and prescribe medication when necessary.

medicine

A2

Medicine is a substance used to treat, prevent, or cure an illness or injury. It can also refer to the science and practice of diagnosing and treating patients to improve their health.

exercise

A2

Physical activity that you do to make your body strong and healthy. It can include activities like running, swimming, or going to the gym to improve your fitness.

Diagnosis

B2

The identification of the nature of an illness or other problem by examination of the symptoms and signs.

hospital

A1

A hospital is a large building where doctors and nurses provide medical care for people who are sick or injured. It contains specialized equipment and rooms for treatments, surgeries, and staying overnight while recovering.

healthy

A2

Healthy describes someone who is in good physical or mental condition and is not ill. It can also describe activities, food, or environments that help you stay well and strong.

Prescription

B2

A formal document or digital order issued by a medical practitioner that authorizes a patient to be provided with a specific medicine or treatment. It can also refer to the medicine itself.

Symptom

B2

A physical or mental feature which is regarded as indicating a condition of disease, particularly such a feature that is apparent to the patient.

Physician

B2

A person qualified to practice medicine, especially one who specializes in diagnosis and medical treatment rather than surgery.

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