1
a [subject] practical
这里的 practical 是可数名词，常见于英式英语，指学校的实验课或实验考试。
She has her biology practical tomorrow morning.
她明天上午有生物学实验课。
实验；实践考核；实习课
practicals — plural of practical
先理解核心含义，再看它在真实句子里的用法。
实验；实践考核；实习课
A laboratory experiment, test, or practical examination
She has her biology practical tomorrow morning.
她明天上午有生物学实验课。
具有一定功能的道具,而非单纯模仿
A prop that has some degree of functionality, rather than being a mere imitation.
用于布景照明并在镜头中作为场景一部分的灯具
A light fixture used for set lighting and seen in the frame of a shot as part of the scenery.
实验室实验、测试或调查
Laboratory experiment, test or investigation
We have a physics practical tomorrow morning, so I need to review the lab instructions tonight.
我们明天上午有一节物理实验课，所以今晚我需要复习实验说明。
She spent the whole afternoon in the chemistry lab finishing her practical for the final grade.
她整个下午都待在化学实验室里，完成她的实验考核，以获得期末成绩。
Our teacher told us that all practicals must be completed by Friday.
老师告诉我们，所有实验考核都必须在周五之前完成。
这里的 practical 是可数名词，常见于英式英语，指学校的实验课或实验考试。
She has her biology practical tomorrow morning.
她明天上午有生物学实验课。
on 后接实验的具体主题。
We did a practical on acids and bases in class.
我们在课堂上做了一个关于酸和碱的实验。
在影视或戏剧中，practical 指画面里真实可用的道具，尤其是可发光的灯具。
The prop master decided to use the old lamp as a practical.
道具组长决定把那盏旧灯用作实物道具。
Not this
We did practical on photosynthesis today.
Use this
We did a practical on photosynthesis today.
这里 practical 是可数名词，意为“实验课/实验考核”，单数前必须有 a/an；汉语没有冠词，所以容易漏掉，加上 a 才符合冠词规则。
Not this
We had two practical this semester.
Use this
We had two practicals this semester.
practical 作名词是可数名词，复数形式是 practicals；汉语名词没有复数变化，因此要在 two 后用复数，加上 -s。
Not this
I have a football practical after school.
Use this
I have football practice after school.
足球训练/练习是 practice，不是 practical；practical 作名词指实验室实验或实用道具，用在这里会误解，改用 practice 才表达“课后训练”的意思。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
科学实验课；理科实践考核
The science practical is next Monday in the chemistry lab.
科学实验课下周一在化学实验室进行。
做实验；进行实践操作
We did a practical to test the strength of different materials.
我们做了一个实验，测试不同材料的强度。
参加实践考试
At the end of term, students take a practical in the laboratory.
学期结束时，学生们在实验室参加实践考试。
理论与实践课；理论和实验
The course combines theory and practicals to give students hands-on experience.
这门课程将理论与实践课相结合，以让学生获得动手经验。
Use practicals naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
看到 practical 就想到 practice：道具能真用、灯真亮、实验真做，才是 practical。
语域：mixed 常见场景：UK education (practical exams/lessons)、Theatre or film production (props and set lighting)、Science laboratory (experiments/tests) 该名词用法比较专业，多用于特定场合：英式教育中指实验课或实践考试，影视/舞台制作中指可实际使用的布景道具或入镜灯具，科学领域则指实验或测试。日常口语中较少单独使用，比较常见于正式或职业语境。
复数形式为 practicals。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.