kilocalorie

美 { "us": "", "uk": "" }
英 { "us": "", "uk": "" }
数据源: ai_enrichment
千卡(kilocalorie)是能量单位,常用于表示食物中的热量含量,相当于1000卡路里,在医学和营养学中常被称为“大卡”。

用法要点

句型搭配

kilocalorie通常用于描述食物或能量消耗的具体数值,常与数字、食物名称或活动搭配使用,表示热量含量或消耗量。

• 200 kilocalories per serving
• burn 300 kilocalories
• contains 150 kilocalories

介词用法

kilocalorie常与介词“per”连用,表示每单位(如每份、每分钟)的热量值;也可与“of”搭配,指特定食物或物质的热量。

• kilocalories per hour
• kilocalories of fat
• kilocalories per gram

语域说明

kilocalorie是正式术语,主要用于科学、医学、营养学和健身领域;在日常口语中,人们更常用“calorie”(实际指大卡)或“kcal”缩写。

• scientific report: kilocalorie
• daily conversation: calorie
• nutrition label: kcal

基础例句

This apple contains about 95 kilocalories, making it a healthy snack.

这个苹果大约含有95大卡,是一种健康的零食。

I try to burn 500 kilocalories every day by jogging in the park.

我每天通过在公园慢跑来消耗500大卡的热量。

The nutrition label shows that this cereal has 120 kilocalories per serving.

营养标签显示,每份这种麦片含有120大卡。

How many kilocalories do you think are in a slice of pizza?

你觉得一片披萨里有多少大卡?

高级例句

The study found that reducing daily kilocalorie intake by 20% can improve metabolic health in adults.

研究发现,将每日千卡摄入量减少20%可以改善成年人的代谢健康。

In clinical nutrition, kilocalorie requirements are calculated based on age, weight, and activity level.

在临床营养学中,千卡需求是根据年龄、体重和活动水平来计算的。

The energy content of biofuels is often expressed in kilocalories per kilogram for industrial comparisons.

生物燃料的能量含量通常以每千克千卡表示,用于工业比较。

Our fitness app tracks kilocalorie expenditure during workouts to help users achieve their weight loss goals.

我们的健身应用追踪锻炼期间的千卡消耗,以帮助用户实现减肥目标。

高频搭配

verb

consume kilocaloriesburn kilocaloriescalculate kilocaloriesmeasure kilocaloriesreduce kilocalories

adjective

high kilocalorielow kilocalorieexcess kilocaloriesdaily kilocalorietotal kilocalorie

noun

kilocalorie intakekilocalorie contentkilocalorie countkilocalorie requirementkilocalorie deficit

adverb

approximately kilocaloriesexactly kilocaloriesroughly kilocalories

preposition

kilocalories per daykilocalories from carbohydrateskilocalories in food

phrase

kilocalorie-dense foodkilocalorie-restricted dietkilocalorie balancekilocalorie expenditure

常见错误

❌ 错误:I ate 200 calories for breakfast.
✓ 正确:I ate 200 kilocalories for breakfast.

在科学或正式语境中,应使用“kilocalorie”表示大卡;日常口语中“calorie”常被误用为千卡,但严格来说,“calorie”指小卡(1/1000千卡),容易造成混淆。

❌ 错误:This food has high kilocalorie.
✓ 正确:This food is high in kilocalories.

中文学习者可能直译“高热量”为“high kilocalorie”,但英语中常用“high in kilocalories”或“kilocalorie-dense”来描述食物热量高,需注意介词和形容词搭配。

近义词辨析

calorie

calorie在科学上指小卡(1/1000千卡),但在日常用语和营养标签中常被用作kilocalorie的同义词,表示大卡,这种用法虽普遍但不够精确。

In science, 1 kilocalorie equals 1000 calories, but on food labels, 'calorie' usually means kilocalorie.

kcal

kcal是kilocalorie的缩写,两者完全等同,都表示千卡;kcal更常用于营养标签、科学论文和健身应用中,书写更简洁。

The energy value is listed as 250 kcal, which is the same as 250 kilocalories.