What are TOEFL, IELTS, and GRE used for? Why do we need to take them? What's the use

The meaning and function of TOEFL, IELTS, and GRE:

GRE: Graduate Record Examination; suitable for applying for majors that are more science-based and engineering in addition to medicine, law, and business. However, many business schools and law schools have also begun to accept GRE scores. Therefore, for many students who want to apply for science and engineering majors and business majors at the same time, they can refer to the official requirements of the school program, and maybe they can only take the GRE.

So far, more than 2,300 colleges and universities in the United States and Canada have stipulated that all foreign students applying to study at the school must provide one or two of TOEFL, GRE, GMAT or SAT. A standardized test proves that only applicants who meet the school's required scores can be eligible for admission and scholarship application. In addition to institutions of higher learning in most countries such as the United States and Canada, some countries and regions in Europe (such as the United Kingdom), Oceania (such as Australia, New Zealand), and Southeast Asia have also recognized TOEFL test scores.

In addition to taking the civil service exam, having a good IELTS and TOEFL score will definitely give you extra points when applying for a job. For example, when banks recruit, they require an IELTS score of 6.5. When foreign companies recruit, the vast majority of companies recognize IELTS and TOEFL in Chengdu far beyond Band 4 and Band 6.