3 . 根据句意，选择单词或短语并以其适当形式填空。

release     threat     negotiate     assignment     access     objective barrier to     devote oneself to     pay off     stick it out

1. This unique and delicate place is now under ________ from pollution and climate change.
2. Justina’s mother told her to look at the situation ________ and be less emotional.
3. The team was happy because it was ________ to a rather easy group in the Olympics.
4. Not many people are able to ________ their career in their whole life.
5. The beach is easily ________ to visitors who travel by train.
6. The terms of this deal are ________, so it is possible that we can get this item changed.
7. Learning to play a musical instrument can be difficult, but if you ________ you will find success.
8. When an ant finds food, it ________ a chemical to mark the path so that it can find the food later.
9. All the effort of the team ________ when they won the championship.
10. Age should be no ________ living a rewarding life.

8 . 英译汉
1 graph       n.    1    
2 emission       n.    2    
3 melt       vi.&vt.    3    
4 starve       vi.&vt.    4    
5 seal       n.    5    
6 ecology       n.    6    
7 release       vt.&n.    7    
8 methane       n.    8    
9 carbon       n.    9    
10 dioxide       n.    10