Are these translations correct? 1. 尽管研究者们也研究了英语歌曲在词汇教学中的影响，但这些研究只局限于理论研究。 —— Although, researchers also investigate the effect of English songs in vocabulary teaching, these are confined to the theoretical investigation. 2. 因为其优美悦耳的节奏，音乐在大脑潜能的发展中起着不可缺少的作用。 ——Since its beautiful and harmonious rhythm, music occupies the special and indispensable position in the development of the brain’s potential. 3. 学生通常通过死记硬背和机械记忆来学习单词。 ——students learn vocabulary mostly by rote and mechanical memory. 4. 老师教单词主要通过机械重复，然后学生跟着老师的口令不断重复地读。 ——teachers mainly teach vocabulary by mechanical repetition and students do it according to the orders from the teachers. 5. 例如老师教苹果这个单词，他们会这样教 a—p—p—l—e—apple。 ——teachers teach the word “apple”, and they will read to students like this a-p-p-l-e-apple. 6. 他们通常死记硬背单词字母的组合而不是通过读音与字母之间的联系来记单词。 —— they usually rote the combinations of letters not through the relationship between pronunciation and letters. 7. 作为英语老师应该理论联系实际提高课堂教学效率。 ——As English teacher should combine the theory with practice to improve the efficiency of classroom. 8. 当老师将英语歌曲运用于词汇教学中，不仅可以激起学生的热情而且可以维持一个轻松愉悦的环境来保持他们对词汇的学习兴趣。 ——When teachers apply the English songs to the vocabulary teaching, it can not only arouse students’ enthusiasm but also remain a pleasure and relaxed environment to keep their interest in vocabulary learning. 9. 英语歌曲结合词汇学习可以给学生提供感知识别和想像的材料。 ——English songs combined the vocabulary learning provide the students with perceptual recognition and imaginary materials. 10. 在我们的生活中有这样一种现象，7、8岁孩子能够很容易的背诵很长的儿歌。 ——There will be a such phenomenon in our life which children 7~8 years can easily recite long nursery rhymes.