Most slang word are used more in speaking than in writing. As this reason, few can be found in dictionaries. Most Americans know about 10 000 to 20 000 words. About 1 000 to 2 000 of these words are slang. However, slang words are among those used very often. Slang words are made up of special groups such as workers, and musicians. They are used to describing a new subject, experience or idea. At first, only the member of such special groups understand words they have made up. Later, some of the slang words are used by other people, too. Slang words can be popular for a time, but then forget and not used any more. Students studying a foreign language should be very careful about what words to use but what not. Generally, it is better not use slang words.
1. _______ 2. _______ 3. _______
4. _______ 5. _______ 6. _______
7. _______ 8. _______ 9. _______
10. _______
Key：
1．word改为words。
2．As改为For。
3．of改为by。
4．describing改为de-ficrlbc。
5．member改为members。
6．第一个words前加the。
7．正确。
8．for-get改为forgotten。
9．but改为and。
l0．use前加to。