Interesting how this thread has splintered into several topics.
Regarding the point I made earlier, my students talking about "hating studying" is simply to quote from them. What they mean by it is the traditional classroom/textbook oriented learning environment where students memorize grammatical rules and vocabulary in order to pass tests but can't use the language worth a damn. (BTW, my students are all doing languages exchanges, so I learn Japanese from them and we are
not in a traditional environment.)
Another distinction of those who learn English from TV programs like Friends is developing the proper use of "filler" words, such as "like" "kind of" "you know" "by the way" etc, which can only really be used well by learning them in context - and don't disparage these little words - your language will never sound natural without them, your Japanese included.
Too many textbooks have too many non-native type sentences, beginning with 私は。。。for example, to be natural. I can speak for an hour in Japanese about likes, dislikes, passions, backgrounds, etc, and maybe use 私 twice in that time. It's a structure used to help westerners learn, but it's not natural. That's just one example.
Another example of a perfectly correct but perfectly useless English sentence that almost all ESL students have had to write at some point or other is: "This is a pencil." I've been speaking English for more than 40 years, and I can't ever remember using that sentence, and except for being sarcastic, I can't think of a time I would even use it. Of course it's a pencil ... DUH. Sure, they learn grammar and vocabulary, but why not make the sentence useful at the same time, like "Where is my pencil," or "This is delicious." Two similar sentences structurally, but both might be used more than once in 40 years.
Sentence mining is brilliant, and my Japanese is advancing rapidly because of it. The best sources, though, are Japanese sentences that are written/spoken for other Japanese, not for second-language learners. That is how native Japanese learned their language, and how native English speakers like me learned English. Any other way is doing yourself a disservice.
Sorry for the long post
Edited: 2008-07-11, 1:46 am