1. followed by 是接下困哗来的意思.
比如 Dancing is followed by singing. 跳舞之后是唱歌.
2. Writing increased as a problem as students discovered difficulties in writing papers that they were now expected to hand in.Reading remained as a significant(显著的)problem.
当学生们发现要上交的禅尺笑论文写起来很难时,写作就成了一个难题. 而阅读一直是一个严重问题.
3. self-defeating : 弄巧成拙的,事与愿违的
To use the sarnc method would be self-defeating because it might reduce motivation,especially if it has failed in the past.Therefore a different method may help henause it is different.
你这里有错字, 翻译是贺含: 由于sarnc方法会打消积极性,所以这种方法是事与愿违的,尤其它在以前已经失败过了. 因而, 尝试一个新的方法也许可行.
4. through+时间 在这里就是在一段时间里,贯穿一段时间, through ten weeks就是十周之内.
5. led up to 是lead up to 的过去时, 意思是"作为...的准备",可以引申为导致.
re-taink不是英语单词, 你的问题里拼写错误太多,希望你更正.