16．A.before B．after

　　C．ago D．until

　　解析：选B　几周后，也就是放弃希望后很久，"我"收到了一封信，通知"我"得了一等奖。

　　17．A.position B．reward

　　C．victory D．prize

　　解析：选D　first prize"一等奖"。

　　18．A.praised B．thanked

　　C．surprised D．puzzled

　　解析：选A　除了地理老师以外，全校的人都为此表扬"我"。praise sb. for sth."为......而表扬/赞扬某人"。

　　19．A.saw B．watched

　　C．looked at D．cared about

　　解析：选B　地理老师监管"我"比以前更上心了。watch在此处意为"注意；监视"。

　　20．A.afraid B．angry

　　C．sure D．sorry

　　解析：选C　此处是指尽管他很确信"我"以后不会在他的课上写诗了。be sure that ..."确信......"。

　　Ⅱ.短文改错

　　Yesterday was my birthday. After I came back home from school, I thought his parents might have cooked us some nice food. However, when I got home, I found either of them was at home. I was really disappointing. I thought they must have forget my birthday. Then the phone rang. It was my mother. She said she had to take care my grandfather. She asked me to go to my aunt's home and had dinner there. When I opened the door, I found both my friends or my relatives were there. They held on a party for me. It really made me happily.

　　答案：第二句：After→Before; his→my

　　第三句：either→neither

　　第四句：disappointing→disappointed

　　第五句：forget→forgotten

　　第八句：care后加of

　　第九句：had→have

第十句：or→and