To pass CET-4 and CET-6, I suggest you review more words and punch in with English learning software. My own English learning software is: scallop. This software can help you remember words better. And when you see that you have memorized so many words, you will feel a sense of accomplishment. Personally, I think the effect of this software is still very good, and it will also help you review the words of the previous day. Besides, you need to practice listening and do some reading comprehension and grammar fill-in-the-blank questions every day.

If you can make these preparations, I believe you have a good chance of passing CET-4 and CET-6.

In short, you can make the following preparations:

1. Learn grammar knowledge. English grammar is the foundation of English learning. Mastering grammar can help you better understand the structure and meaning of English sentences.

2. Listen, speak, read and write more. Practicing listening, speaking, reading and writing more can improve your English level and enhance your ability to understand and apply English.

3. Do a simulation test. By doing simulated test questions, you can be familiar with the form and content of the test and improve your answering skills and ability to take the test.

4. Expand your vocabulary. Vocabulary is an important part of English learning. Expanding your vocabulary can help you better understand English articles and improve your reading speed.

5. Pay attention to listening and reading. Listening and reading occupy a large proportion in CET-4 and CET-6, so we should attach importance to the training of listening and reading to improve our listening and reading ability.

The above is my personal suggestion, I hope it will help you.