(1)承认(admit the truth， fact or existence of)[T+n，T+-ing，T+that，D+to+n+that，T+wh，C+n+adj，C+n+to-inf，C+n+-ed]：～defeat/one's mistakes/one's errors/one's faults/the fact承认失败/错误/错误/过失/事实;～the need for reform/the truth of sb's statement/sb's right to do sth承认需要改革/某人叙述的真实/某人做事的权利;～having been defeated/firing the shot 承认失败/开枪了;～(to sb)that one was defeated/that it was true(向某人)承认失败/那是真的;～oneself to be defeated/it to be true 承认自己失败了/那是真的;～oneself defeated/beaten承认自己失败/失败了;a generally～d expert/fact公认的专家/事实;〖同〗recognize，accept，admit，confess;〖反〗deny，reject;

(2) 承认……是，认可(accept sb as...)[C+n+n/adj，C+n+to-inf(be)，C+n+as]：～sb master 承认某人是主人;～sb to be the best player/to have been good-humoured 承认某人是最好的选手/一直是和蔼可亲的; ～sb as one's heir/one's son/supreme ruler/America's finest writer 认可某人是自己的继承人/自己的儿子/最高统治者/美国最优秀的作家;〖同〗admit;

(3)告知收到(state(usu in writing)that one has received sth)[T+n]：～(receipt of)the letter/the gift/the parcel from...告知收到了……的信/礼物/包裹;sign and～receipt 签字以示收到;

(4)感(答)谢(express thanks for sth)[T+n，T+n+prep(with)]：～sb's help in one's speech 在讲话中答谢某人的帮助;～sb's help/sb's services with a present用礼物答谢某人的帮助/服务;～sb's recommendation/sb's favour/sb's kindness with thanks 答谢某人的推荐/恩惠/好意;

(5)(用微笑、点头、招手、问候等)表示已注意到(认出)(show that one has noticed or recognized sb as by smiling，nodding，waving or greeting)[T+n]：He walked past me without even～ing me/my presence/my greeting.他从我身边过都没有注意到我/我在场/我的问候。stand up to～the cheers of the crowd 站起来向欢呼的人群示意;～sb by lifting one's hat 举帽向某人示意;〖同〗 respond to，reply to，answer;〖反〗ignore;

→ ack′nowledg(e)ment n 承认;告知收到;答谢;

【辨异】acknowledge与admit和confess的区别见ADMIT。