A. 大一大二大三大四的学生用英语怎么说
大一学生 Freshman
大二学生 Sophomore
大三学生 Junior student
大四学生 Senior student
大学四六级英语长难句：
We found that when we taught participants to ask “What if?" and "How can?" questions that nobody present would know the answer to and that would spark exploration, they engaged in better inquiry at the next exhibit—asking more questions, performing more experiments and making better interpretations of their results.
我们发现，当我们教参与者提出“如果？”和“如何？”这些现场没有人知道答案但又会激发探索的问题时，他们在下次展览时会更好的进行研究—提出更多的问题，进行更多的实验并对其研究结果做出更好的解释。
2.More than a decade ago, cognitive scientists found that what distinguished young alts from children was not the ability to retain facts or apply prior knowledge to a new situation but a quality they called “preparation for future learning."
十多年前，认知科学家发现，年轻人与儿童的区别并不在于记住事情或将之前学到的知识应用于新情况的能力，而是在于他们称为“为未来学习作准备”的品质。
B. 有四个人,他们分别学日语,汉语,法语和英语,问他们怎么交流
他们分别学习的语言不通 只要手语世界是通用的表达方式 他们只能用手语交流