求翻译：在听材料前教师应该考虑听力材料的语速、 词汇的难易度、 句法的特色、 文化背景以及学生对材料所涉及内容的熟悉度等 因素， 着手为学生即将进行的听力理解做好准备： 1．对即将听的内容作个预测， 教师可以提一些启发性问题， 或让学生讨论一些相关的背景知识等。具体可以开展读标题、看插图、 学习新单词、 浏览听力题 目等活动。2.向学生介绍听力技巧， 并告诉学生在即将开始的听力理解过程中， 该如何操练。教师应帮助学生克服力求听出每个词、每句话的心理状态，从而指导他们根据听力材料的类型， 需要训练的听力技巧，学会有选择地听。是什么意思？

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After listening to the material before the hearing should be taken into account materials for teachers of speed, glossary of the ease, syntax, and cultural background of the characteristics, as well as students of the material content of the involved factors such as familiar to students, to proceed

In listens to in front of the material the teacher to be supposed to consider the hearing material the language fast, the glossary difficulty level, the syntax characteristic, the cultural context as well as the student involve the content to the material factors and so on familiar, begins the heari

In front of the listening material and the teacher should consider listening speaking vocabulary difficulty and syntactic features and cultural background as well as the students ' familiarity with the contents of the material factors such as, listening comprehension for students are about to get re

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