“直到”你学会until“为止”,主讲人：曾彩霞 2018年1月28日,until既可以用作介词，又可用作连词。作介词时，后面要接具体的时间；作连词用时，后面要接状语从句。,I shall stay here until the next day.,I will keep singing until I get too old to sing.,介词,连词,until,在肯定句中，意为“到为止”谓语动词一般要求是延续的，如：work，live，stay，study，play，wait等，表示动作一直延续到until所表示的时间为止。,until,【练一练】,Things went well _ one night an accident happened.,我想在这儿呆到圣诞节。 _.,until,Id like to stay here until Christmas,until,Notuntil在否定句中，意为“直到才”，表直到until所表示的时间才发生。,The little girl didnt fall asleep until her mom read a story.,基本结构：not主句+until从句,主句,从句,not until,They didnt stop getting on the train until it was full.,not until,I didnt realize she was a famous star until she took off her sunglasses.,not until,【练一练】,You cant have this football back _ you promise not to kick it in class. A .because B. since C .when D. until,【答案】D,not until,我的弟弟今天早晨直到九点才起床。 _.,My younger brother didnt get up until nine this morning,直到妈妈回来我才吃晚饭。 _.,I didnt have dinner until my mom came back,not until,倒装结构：not until+从句+倒装的主句,I did not realize the importance of team work until I became monitor of our class.,Not until I became monitor of our class did I realize the importance of team work.,主句,从句,Not until,从句,主句,Not until,until（till)： 直到 为止 not . until ：直到才,易错点： 1.何时用until 和notuntil （从时间轴分析：until用在时间点前、not until用在时间点后） （从中文分析： 看句中中文：until直到 , not until直到才） 2.连词until引导的从句中谓语动词的时态: 主句一般现在时，从句一般现在时/ 现在完成时。 CC doesnt wake up until I come back everyday 主句一般将来时，从句一般现在时/ 现在完成时。 CC wont stop eating until I say “NO”. 主句一般过去时，从句一般过去时/ 过去完成时。 CC didnt go back home until it was dark yesterday. 3.连词until引导的从句中谓语动词的类型: until ：直到为止（肯定句），主句动词必须是延续性动词。 not until 直到才（否定句），主句动词必须是非延续性动词。,