一、所有的科学家是偏正短语吗？

对，所有的是定语，科学家是主语，所有的科学家是偏正结构短语。

二、用英语介绍科学家，四句话？

Why was Einstein so clever?Was there something special about his brain?In fact scientists have examined Einstein's brain very thoroughly and found that the part of the brain that has to do with visual imaging and mathematical thinking was in fact enlarged.However,this does not altogether account for his greatness.爱因斯坦为什么这么聪明？他有特别超强头脑吗？

三、描写科学家精神的英语句子？

没有一个人能全面把握真理。——亚里士多德

no one can fully grasp the truth。