意为"不舒适"；D项意为"怀疑"。故选C。

　　19．A.passed off B．passed over

　　C．passed by D．passed away

　　解析：选D　上文提到，作者的老师患了肝癌，那么作者收到的电话信息就是Freeman老师去世了。A项意为"停止，完成，忽视"；B项意为"越过"；C项意为"经过，过去，疏忽"；D项意为"去世"。故选D。

　　20．A.Eventually B．Occasionally

　　C．Instantly D．Particularly

　　解析：选B　根据语境可知，此处表示作者偶尔会再读她的信件，怀念老师的笑容和友情。A项意为"最终，最后"；B项意为"偶尔，有时"；C项意为"瞬间地，迅速地"；D项意为"特别地，尤其"。故选B。

　　Ⅱ.语法填空

　　Joy in living comes __1__ having fine emotions, trusting them, giving them the freedom of a bird in the open. Joy in living can never __2__ (assume) as a pose, or put on the outside as __3__ mask. People __4__ have this joy do not need __5__ (talk) about it; they radiate it. They just live out their joy and let it splash its sunlight and glow into other lives as __6__ (nature) as a bird sings.

　　We can never get it by working for it directly. It comes, like __7__ (happy), to those who are __8__ (aim) at something higher. It is a byproduct of great, simple living. The joy of living __9__ (come) from what we put into living, not from what we seek to get from __10__.

　　语篇解读：生活的乐趣源自良好的情感；生活的乐趣源于我们对生活的投入，而非索取。

　　1．from　come from为固定搭配，意为"来自于"。故填from。

　　2．be assumed　句意：生活的乐趣是无法靠姿态摆出来的，也无法用戴上一张面具来伪装。根据句意，assume与Joy之间为被动关系，故填be assumed。

　　3．a　参见上题解析。mask意为"面具"，为可数名词，此处表示泛指，故填不定冠词a。

　　4．who/that　分析句子结构可知，设空处引导定语从句，先行词为People，引导词在从句中作主语，故可用who或that引导。

5．to talk　need在此为实义动词，need to do sth.意为"需要做某事"，为固定搭配