歷年真題：The discipline at the military academy is so rigid that students can hardly bear it.
譯文：軍校的紀律很嚴，以至于學生們很難忍受。
discount n.折扣;打折扣賣 v.不重視;不理會
典型例句：They are two dollars each but if you buy ten, you can get a discount of ten percent.
譯文：它們每個兩元，如果你買十個，可以給你打九折。
名師導學：該詞屬于常考詞匯，考試題型以短語搭配為主，如at a discount of(按……折扣)。
巧記：dis(沒有)+ count(數(shù))=沒有計算在內(nèi)的=打折
discourage v.使泄氣，使灰心;勸阻
典型例句：His parents discouraged him from joining the air force.
譯文：他的父母親勸他不要參加空軍。
名師導學：該詞屬于?？荚~匯，考試題型以短語搭配，尤其要注意discourage(勸阻)和encourage(鼓勵)這組反義詞在動詞用法中不同的介詞搭配：discourage sb.from doing sth.(勸阻某人做某事);encourage sb.to do sth.(勸某人做某事)。
巧記：dis(沒有)+ courage(勇氣)=喪失勇氣，使灰心
想一想：①discouraging ②discouragement
Key: ①a.令人灰心的 ②n. 泄氣
disease n.病，疾病;病害
典型例句：Many diseases are caused by bacteria.
譯文：許多疾病是由細菌引起的。
巧記：dis(不)+ ease(安心)=身心不安，疾病，弊端
disguise n.假裝 v.隱瞞，掩埋
典型例句：She cut her hair short and tried to disguise herself as a man.
譯文：她把頭發(fā)剪短了，試圖扮成男人。
名師導學：disguise oneself as(把自己裝扮成);in disguise(偽裝，假扮)。
