题目内容
17．One of students in our classfell（fall） into the river yesterday．分析 我们班的一个学生昨天的时候掉进河里去了．
解答 答案：fell
一般过去时表示在过去某时刻发生的动作或状态，经常和表过去的时间状语连用，比如yesterday，last night，等等．根据句子中的时间状语"yesterday"可知要用一般过去时，结合给出的英语提示fall，所以要用其过去式fell来填空，故填fell．
点评 首先要掌握一般过去时的用法，然后结合具体的题目，就可以确定正确答案．
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6．In the summer of 1848，in Guatemala，a man called Ambrosio Tut went into the forest，as he did almost every day．Tut was a gum-collector（树胶采集者），and his job was to （1）Bgum in the forest．To do this，he had to（2）Cthe trees．One day，he got to the top of one tree and something caught his eye．He looked out across the trees and saw the tops of some old （3）D．
Tut didn't really know what he had seen，but he knew it was something （4）BHe ran to tell the local governor （管理者），and together they walked into the forest．There they found Tikal（蒂卡尔），the city that the Mayans （玛雅） had built many hundreds of （5）Dbefore．
For a long time before that day，local people had known that somewhere in the forest there was an old Mayan city，（6）Bno one had seen it for centuries．Between 200and 900AD，the city of Tikal had been the center of Mayan civilization （文明） in the area，but then the Mayans （7）A．Nobody knows why!After 1000AD，the forest began to cover it and people （8）C that it was there．
Seven years before Tut looked out for the trees，two British people had gone to Guatemala and had written a report（9）DMayan treasures in the forest，but they didn't mention Tikal．Even earlier than this，local Indians had told European travelers about a great city hidden in the trees，but no one would listen to（10）D．Now the lost city had been found again．
Tut didn't really know what he had seen，but he knew it was something （4）BHe ran to tell the local governor （管理者），and together they walked into the forest．There they found Tikal（蒂卡尔），the city that the Mayans （玛雅） had built many hundreds of （5）Dbefore．
For a long time before that day，local people had known that somewhere in the forest there was an old Mayan city，（6）Bno one had seen it for centuries．Between 200and 900AD，the city of Tikal had been the center of Mayan civilization （文明） in the area，but then the Mayans （7）A．Nobody knows why!After 1000AD，the forest began to cover it and people （8）C that it was there．
Seven years before Tut looked out for the trees，two British people had gone to Guatemala and had written a report（9）DMayan treasures in the forest，but they didn't mention Tikal．Even earlier than this，local Indians had told European travelers about a great city hidden in the trees，but no one would listen to（10）D．Now the lost city had been found again．
| 1．A．look up | B．look for | C．look after | D．look through |
| 2．A．cut | B．plant | C．climb | D．paint |
| 3．A．boxes | B．trees | C．people | D．buildings |
| 4．A．boring | B．special | C．funny | D．terrible |
| 5．A．days | B．weeks | C．months | D．years |
| 6．A．and | B．but | C．so | D．because |
| 7．A．left | B．protected | C．changed | D．created |
| 8．A．worried | B．noticed | C．forgot | D．hoped |
| 9．A．to | B．of | C．for | D．about |
| 10．A．him | B．her | C．us | D．them． |
8．I remember him once．But I can't remember ．（ ）
| A． | to see； how I met him | B． | seeing； where I saw him | ||
| C． | see； when did I see him |
5．
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| into，enjoy，first，cut，make |
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| A． | open up | B． | turn up | C． | call up | D． | think up |