I recently got an Intermediate Japanese textbook and am working on translating the intro for myself, so that I can come to a full understanding of grammar and structure and why things are used.
「総合日本語初級から中級へ」について
This is the overhead banner. I figure it means, 'About 'Integrated Japanese from Beginner to Intermediate''. At least, I believe that's what 'ni tsuite' is all about...'about'/'concerning'.
この「総合日本語初級から中級へ」は、「日本語ジャーナル'」にのせた「現代日本語総合講座」をまとめたものです。
Here's my crack at it. "This 'Integrated Japanese from Beginner to Intermediate' is a summary of Nihongo Journal's 'Integrated Courses in Modern Japanese'."
１９８９年１月号から１９９０年３月号までの記事を入れました。
My go. "It draws from articles from January, 1989, to March, 1990."
１９８８年に出版された「総合日本語中級前期」にくらべて、少しやさしくしてあります。
This one is much trickier for me. Something about, 'it's easier than 1988's publication of 'Integrated First Term in Intermediate Japanese'.
1 - In my first example, まとめ is a word I learned as 'summary', so まとめたもの struck me as 'something that was summarized', is my thinking correct?
2 - What is にのせた in the second example?
3 - What is にくらべて in the third example?
4 - What's the grammatical explanation of 〜くしてあります?