1 . 选词填空

curious, harm, honest, trap, die, operate, crowd, live, suffer, nature, distance, pollute

1. Don’t worry. This experiment was ________ to animals.
2. Tom looked at me ________, because he wanted to know everything.
3. In busy seasons, several famous spots of the Great Wall are always ________ with visitors.
4. They got _________ in the fire and were killed.
5. Astronomers have discovered a ________ planet.
6. Doctors performed a successful ________ on her brain.
7. I’m really very sorry about the ________ and loss that was caused.
8. They made sure that he died a horrible ________.
9. Waste water from the factory is the main cause of the _________ of local rivers.
10. I prefer to see animals living in their _________ habitats.
11. They are people of kindness and _________.
12. If there were no water and air, all _________ things would die.