任务一 完形填空
David always complained to his mother. He thought life was too hard. He didn't know how to make it and wanted to up.
David's mother took him to the . She filled three pots with water and put each on a big fire. Soon the pots started to . In one she put carrots, in the second she put eggs, and in the last she put coffee powder. She watched them boil(煮沸) saying a word.
David waited, what she was doing. In about 20 minutes, she the fire. She took the carrots and eggs out and put them on different plates. Then she the coffee into a cup. She asked, "David, what do you see?"
"Carrots, eggs and coffee," he answered.
She asked David to the carrots. He found that they were . She then asked him to take an egg and it. He saw a hard-boiled egg after taking off the shell. Finally, she asked him to taste the coffee. Its rich and nice smell brought a to his face.
Each of them went through the boiling water, each reacted(反应) differently. The carrots were strong and hard at first, but they became soft and weak. The eggs were . But after going through the boiling water, their inside became hard. The coffee powder changed the water and created(创造) new.
"What are you?" she asked David. "When comes to you, are you a carrot, an egg or the coffee powder?"

1. B
2. D
3. B
4. C
5. D
6. A
7. C
8. A
9. A
10. B
11. C
12. A
13. C
14. B
15. D

1. 考查固定搭配。根据前文David觉得生活艰难，想放弃，give up是“放弃”的固定短语，故选B。
2. 考查语境理解。妈妈要烧水做实验，应该在厨房（kitchen），故选D。
3. 考查动词辨析。锅里的水开始沸腾（boil），符合语境，故选B。
4. 考查介词辨析。妈妈看着水沸腾，没有说话，without表示“没有”，符合语境，故选C。
5. 考查动词辨析。David等着，疑惑妈妈在做什么，wonder表示“想知道、疑惑”，故选D。
6. 考查短语辨析。20分钟后妈妈关掉火源，turn off表示“关掉（火源等）”，故选A。
7. 考查动词辨析。她把咖啡倒进杯子里，pour表示“倾倒”，故选C。
8. 考查动词辨析。妈妈让David触摸胡萝卜，后文发现胡萝卜变软，touch表示“触摸”，符合逻辑，故选A。
9. 考查形容词辨析。胡萝卜煮过之后变得柔软（soft），故选A。
10. 考查动词辨析。妈妈让他拿鸡蛋并打破它，break表示“打破”，之后才能看到熟鸡蛋，故选B。
11. 考查名词辨析。咖啡的香味让他脸上露出微笑（smile），符合语境，故选C。
12. 考查连词辨析。每个事物都经历了沸水，但反应不同，but表转折关系，故选A。
13. 考查形容词辨析。鸡蛋原本是脆弱的（weak），经过沸水后内部变硬，符合语境，故选C。
14. 考查代词辨析。咖啡粉改变了水，创造了一些新的事物，something new表示“一些新的事物”，故选B。
15. 考查名词辨析。呼应前文David觉得生活艰难的语境，妈妈问他当困难（trouble）来临的时候，自己是哪种事物，故选D。