To access past English CET-4 (College English Test Band 4) exam papers, you can visit the official website of the National Education Examinations Authority (NEEA) or other reputable educational websites. Here are the steps you can follow:

1. Visit the official website of NEEA (http://www.neea.edu.cn/) or any other trusted educational website that provides CET-4 resources.

2. Look for the "English CET-4" or "CET-4 Past Papers" section on the website. It may be located under the "Examinations" or "Resources" category.

3. Click on the appropriate link to access the past papers.

4. You may need to provide certain information, such as the year or specific exam session, to retrieve the past papers. Follow the instructions provided on the website.

5. Once you access the past papers, you can download them in PDF format or view them online.

6. It is recommended to practice with a variety of past papers from different years to familiarize yourself with the exam format and types of questions.

Remember that practicing past papers can be a valuable resource for exam preparation, as it helps you become familiar with the exam structure and improve your time management skills. Good luck with your CET-4 preparation!