science既可作可数名词，也可作不可数名词。当science中文翻译为“科学”、“自然科学”等总称含义时，是不可数名词；当science中文翻译为“一门科学”时，是可数名词，其复数形式为sciences。

science可作可数名词，也可作不可数名词，意为科学;自然科学;自然科学的学习与研究;理科;自然科学学科;学科，学。例句有：

1、The best discoveries in science are very simple.

最伟大的科学发现都非常简单。

2、The study of science has enriched all our lives.

科学研究丰富了我们的整个生活。

3、He was put off science by bad teaching.

教学不好使他失去了对理科的兴趣。

4、The subject is not, properly speaking, a science.

严格地说，这门学科不是科学。

5、It was the study of history that gave birth to the social sciences.

对历史的研究孕育了社会科学。

6、Assessing insurance risk can never be an exact science.

估定承保的风险永远不会成为一门精确的科学。

7、Philosophers did not use to make a distinction between arts and science.

哲学家过去习惯不把艺术和科学区别开来。

8、He's right on form as a crazy science teacher in his latest movie.

他在最近的一部电影中扮演疯狂的理科教师，表现出色。

9、Chemistry was par excellence the laboratory science of the early nineteenth century.

化学是19世纪初期最杰出的实验室科学。

10、Mathematics was once dubbed the handmaiden of the sciences.

数学曾一度被视为各门科学的基础。

11、Science took a new and different turn in the Renaissance.

科学在文艺复兴时期发生了新的转变。

12、Engineering and technology are disciplines distinct from one another and from science

工程学和工艺学互不相同，也有别于自然学科。