四、词汇运用

阅读下面短文，然后根据括号内所给汉语提示写出单词的正确形式（每空一词）。
What will happen in 2100? Let's have a prediction. It must be fun. I think there will be a war(战争) between aliens(外星人) and (1) （人）. This is a story that may happen.
Aliens from other (2) （行星）want to invade(入侵) the earth. It is very difficult to (3) （相信）, but it's true, because their homes are (4) （严重地）polluted. Then there is a great astronaut named John. He tries to save the earth and humans. He makes a special bomb(炸弹) and (5) （带去）it into his spaceship. Although it is a (6) （有危险的）job, he must have a try.
When he is flying in space, he sees some green aliens flying to the earth. He shoots(射击) them with the bomb and flies away. The bomb (7) （变成）a big fireball and follows the aliens. The aliens are getting closer and closer to the earth. (8) （突然）, the big fireball explodes(爆炸). All the aliens (9) （死）and the earth is safe again.
Will it (10) （真正地）happen in the future? And who will be the great astronaut?

四、【短文大意】2100年会发生什么事呢？也许人类与外星人之间会有一场战争吧。
1. humans 【解析】此处须用可数名词的复数形式，故填humans。
2. planets 【解析】other后跟复数名词，故填planets。
3. believe 【解析】由中文提示可知填believe。
4. badly/seriously 【解析】句意：……因为他们的家园被严重地污染了。polluted为实义动词，须用副词修饰，故填badly/seriously。
5. takes 【解析】本句主语为He，时态是一般现在时，考虑主谓一致，动词须用第三人称单数，故填takes。
6. dangerous 【解析】job为名词，须用形容词修饰，danger为名词，故填dangerous。
7. becomes 【解析】本句主语为“The bomb”，时态是一般现在时，考虑主谓一致，动词须用第三人称单数，故填becomes。
8. Suddenly 【解析】句意：大火球突然爆炸了。句首须用副词作状语，故填Suddenly。
9. die 【解析】此处缺谓语动词，又由中文提示可知用动词die，主语为“All the aliens”，时态是一般现在时，考虑主谓一致，故填动词原形die。
10. really 【解析】句中happen为实义动词，须用副词修饰，故填really。