At present, CET-4 is the only German proficiency test in Chinese universities. It is held once a year at the end of June, on the same day as other languages. There is only a written test, and there is no oral test at present.
The difficulty of the exam is equivalent to the level 4 stipulated in the college German syllabus. There are no rules for candidates' German class hours. Generally, anyone with more than 250 class hours can try. The vocabulary requirement is about 2,200. Candidates are required to master the basic knowledge of German grammar, the knowledge of German national conditions, and have a certain ability to express and use German language.
Key points of knowledge
1) Common preposition collocation (collocation with nouns, adjectives and verbs).
2) No one is called passive, and passive substitution forms such as sein…zu…, sich lassen+Inf, etc.
3) The second fictitious unrealistic conditional sentence, especially als and als ob in the unrealistic comparative sentence.
4) Summarize the conjunctions of clauses and make clear the usage and meaning of each conjunctions.
5) The perfect tense structure of modal verbs.
Baidu Encyclopedia-English Band 4.