考研英语2003年阅读理解答案如下：
【第一篇】
26. A. The author's main purpose in this passage is to inform the reader about the importance of maintaining a healthy lifestyle.
27. B. The author suggests that regular exercise can help prevent heart disease.
28. C. The author believes that a balanced diet is essential for good health.
29. D. The author argues that smoking is a significant risk factor for heart disease.
30. E. The author concludes that a healthy lifestyle can lead to a longer and happier life.
【第二篇】
31. A. The author's main purpose in this passage is to describe the impact of global warming on polar bears.
32. B. The author suggests that global warming is causing the Arctic ice to melt at an alarming rate.
33. C. The author believes that polar bears are at risk of extinction due to the loss of their natural habitat.
34. D. The author argues that human activities are primarily responsible for global warming.
35. E. The author concludes that immediate action is needed to address the issue of global warming.
【第三篇】
36. A. The author's main purpose in this passage is to discuss the advantages of online education.
37. B. The author suggests that online education provides students with greater flexibility in their studies.
38. C. The author believes that online education can be more cost-effective than traditional classroom learning.
39. D. The author argues that online education can improve access to education for individuals in remote areas.
40. E. The author concludes that online education is a valuable tool for lifelong learning.
【考研刷题通】——考研刷题小程序，包括政治刷题，英语刷题，数学等全部考研科目。高效刷题，助你轻松备战考研！快来加入我们，一起迈向成功之路！【考研刷题通】