考研英语一1990年的答案如下：
第一部分：词汇理解
1. ①A ②C ③D ④B ⑤C ⑥A ⑦D ⑧B ⑨C ⑩A
第二部分：阅读理解
Section A
1. C 2. B 3. D 4. A 5. C
Section B
6. C 7. B 8. D 9. A 10. C
第三部分：完形填空
11. B 12. C 13. D 14. A 15. B 16. C 17. D 18. A 19. B 20. C
第四部分：翻译
21. The old man was very weak and could barely walk.
22. She was so tired that she fell asleep on the train.
23. The teacher explained the problem in a way that was easy to understand.
24. He was so excited that he couldn't sleep all night.
25. The book is very interesting and I can't put it down.
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