Note:
(a) 近些年来，在中国大陆诞生了许多全英语教学的，以出国留学为目标的国际中学和国际班，教学大纲从美国的AP,到英国的IGCSE, IB, A-Level；英语测试也从美国的TOEFL,到英国的IELTS，应有尽有，五花八门。"
(i) advanced placement https://en.wikipedia.org/wiki/Advanced_Placement
(AP)
(ii) International General Certificate of Secondary Education https://en.wikipedia.org/wiki/In ... Secondary_Education
(IGCSE; is offered to students to prepare them for International Baccalaureate[ a not-for-profit educational foundation headquartered in Geneva and founded in 1968, that has its own schools, for students from age 3-19]; based on the GCE O-Level and is recognised as being equivalent to the GCSE [for pupils in secondary education in England, Wales and Northern Ireland [who intend to go to college within UK]; was developed by University of Cambridge International Examinations)
Quote: “The IGCSE is predominantly exam-based, meaning they are not actual certified ‘courses,’ but rather exams that test knowledge in individual subjects in the same way as Advanced Placement exams and SAT Subject Tests. For this reason, it is also a viable option for many home-schooling educators or in Adult education, when one is seeking a qualification but has no time to attend full-time school classes. Its academic worth is comparable to many secondary school curricula worldwide, such as England's GCSE, the American GED
grammar school https://en.wikipedia.org/wiki/Grammar_school
(The original purpose of medieval grammar schools was the teaching of Latin; oday, "grammar school" commonly refers to one of the 164 remaining fully selective state-funded schools in England and the 69 remaining in Northern Ireland)