文7課 指示表現「こ・そ・あ」 教科書 p.144〜147
Directive — distinguishes こ/そ/あ in text
用法：それ・その・そこ・そう
In writing, the thing just mentioned in the previous sentence is just equal to そ系.
注意 / Note：This is the text default. Exam questions often ask what それ refers to → look for the sentence immediately before.
比較 / Compare：In writing, just mentioned → そ系；this is the default.
よく出る形 / Common form：To ask “What does それ refer to” → look in the sentence immediately before.
駅前に新しい図書館ができた。そこは夜10時まで開いている。
In front of the station there is a new library. That place is open until 10pm.
彼は突然会社を辞めた。その理由はだれも知らない。
He suddenly quit his job. No one knows the reason for that.
先週、ある論文を読んだ。その内容が今も忘れられない。
Last week I read an essay. That content is still unforgettable.