1.Evalution usually is conducted on students' normal in-class performance
and not through formal tests, which would threaten the relaxed atmosphere
considered essential for accelerated learning.
這句中，為什不能用relaxing atmosphere，considered essentially , 以及
2. Whatever brings about particular allergic reactions to something around us
is referred to as an allergen.
- EdLv 69 年前最佳解答
1，... the relaxed atmosphere considered essential for accelerated learning. 教室氣氛不是「自己變輕鬆」，而是師生互動「使氣氛輕鬆」，故用過去分詞 telexed 表示被動。形容詞 essential 是修飾名詞 atmosphere，而非修飾 considered 故不能用副詞。accelerated learning 理由同 relaxed atmosphere 一樣，不再重複說明。2，Whatever 是不定代名詞，它既是名詞也是代名詞（代表它自己），相當於 The thing that。「Whatever (The thing that) brings about ... is referred to as an allergen.」是說(the thing)是過敏原。用 that 引導名詞子句作本句主詞也可以，但是名詞子句本身必須有主詞，例如「That the thing brings about ... is referred to as an allergen.」就可以。
2011-06-25 22:56:40 補充：
打錯更正：telexed => relaxed。