1 . 请根据句子的意思指出下列句子中划线单词的词性与汉语意思。
1. A steep slope (斜坡) rises at a very sharp angle and is difficult to go up.
2. Maybe the best solution is to have a detailed plan of everything to be done and stick to it.
3. In my view, a good business letter should be clear and straightforward.
4. When there is a strike, workers stop doing their work for a period of time, usually in order to try to get better pay or conditions for themselves.
5. Something that is subjective is based on personal opinions and feelings rather than on facts.
6. If you submit a proposal, report, or request to someone, you formally send it to them so that they can consider it or decide about it.
7. Scientists must work hard to purify sea water and polluted water, and try to find substitutes to reduce the use of fresh water.
8. A suspect is a person who the police or authorities think may be guilty of a crime.
9. If you swear to do something, you promise in a serious way that you will do it.
10. Tough life and poor food can help make him realize what we eat daily is the fruit of the sweat of the laboring people.
11. If the amount or size of something swells, it becomes larger than it was before.
12. A symptom of an illness is something wrong with your body or mind that is a sign of the illness.
13. She tore up the letter angrily and threw it into the dustbin.
14. To tease someone means to laugh at them or make jokes about them in order to embarrass, annoy, or upset them.
15. Bad habits do exist. Some students throw rubbish and plastic bags everywhere or spit in public places.

2 . 英汉互译
1. ex- + -(s)pect(             )→ expect v 期望
2. ___________(回)+ -spect → ___________ v尊重；尊敬
3. in- + -spect → inspect v ___________
4. sus- + - (s)pect → suspect v ___________