求新世界大学英语综合教程第一单元的课后题翻译,亲,有没有呢

大学教材里的一些句子不懂（2）
《新世界大学英语系列教材 综合教程》1里面有句话:because every teacher is an individual with his own personality.No doubt this is ture to a certain extent,but it is not very helpful to students.关键是这句“No doubt this is ture to a certain extent"拿不准,这句结合上下文要怎么翻译才顺畅合适,它在这段话里面什么意思,应该如何理解?

大学教材里的一些句子不懂
《新世界大学英语系列教材 综合教程》1里面有句话:it is no use pretending that anyone has discovered a perfect way of teaching English in every possible situation,这句怎么翻译?特别是前面那句no use pretending,假装没用怎么放在句子里不通呀
还一句：it is impossible for any translation method to provide students with the natural forms of a language in speech,
这个in every possible situation修饰的到底是什么?是像一楼说的那样?还是说这个in every possible situation是用来修饰a perfect way of teaching Englishi的?
还有这个in speech到底是说在演讲的时候还是说在平时会话中?

大学教材里的一些句子不懂
1.《新世界大学英语系列教材 综合教程》1里面what people want to say and write in another language is probably very similar to what they want to say and write in their own.What they listen to and read cannot be a formula.It must be real.翻译出来了,“在另一门语言中他们想说和想写的可能与他们自己想说和想写的很相似,他们听到了和读到的不能成为一个公式,它必须是真实的.”很流畅,
2.It will be helpful if there are other students around us who can work with us and practise the unfamiliar forms with us in real situations,talking to each other about real life in real language.里面的最后一句“talking to each other about real life in real language”的主语是什么?是我们还是别的人?