As for the content of learning, vocabulary is the first, and a large vocabulary is really crucial. You can buy a four-level word back. You can also buy CET-4 papers, some of which are brochures with vocabulary.
Followed by fast reading. Band 4 papers are wound in time. When the time comes, roll it up and send other types of papers.
Choose words to fill in the blanks. This mainly depends on vocabulary and word parts of speech.
And reading comprehension and composition. I wrote a composition first. There is a supplementary sentence. Just the usage of some phrases and sentence patterns.
Generally speaking, the difficulty of CET-4 and senior high school English is not much different. You can pass with a little effort, don't worry!