Word books: Flash English "Flash of Vocabulary Level 4", Spark English "Spark Skillful Shorthand of Vocabulary Level 4" and New Oriental "Root of Vocabulary Level 4+Associative Memory Method"
These are some self-study books I recommend to you ~
Five stars: Macro English "Sentence-by-sentence Interpretation of True Questions in Level 4"+Flash English "Flash Language in Level 4"
The only real question book that imitates the layout of the real questions in the examination room, and it explains the real questions word by word, which is super detailed and too friendly to students with weak foundation! Flash across the four-level word book, all details are excellent, very good!
Four stars: Flash English "Flash Vocabulary Level 4"+"Flash Zhenti Level 4"
Sort out the key test sites in the real questions. If you don't have time to prepare for the exam, use this set. Brush the key points first and prepare for the exam more efficiently!
Four stars: Spark English "Level 4 Customs Clearance"+"Level 4 Vocabulary Spark Skillful Shorthand"
Spark needs the help of the APP, and it is very unclear to just look at the content.
Samsung: New Oriental University English Band 4+Band 4 root+associative memory method
Conclusion: Micro English >: Flash English ≥ Spark > New Oriental
Summary: In a word, it is most important to choose the appropriate review materials for Band 4. Before choosing materials, remember to test your English level and list your needs.
I am lazy. After a comprehensive comparison between the real problem book and the vocabulary book, I need a focused and fast vocabulary book. I recommend choosing the "four-character flash" that flashes English. If it's a real question, I've used the English-friendly macro-micro-English "Sentence-by-sentence Interpretation of Level 4 Real Questions", which is simply good news for students with poor English foundation!