Unit 121.到的时候 by the time 2.淋浴take a shower 3.进浴室get in the shower4.从浴室出来get out of the shower5.把忘在家里.leave sth. at home 6.发出响声go off7.迅速离开run off 8.捎某人一程give sb. a ride9.停止运转、出故障break down10.出席、露面.show up11.愚人节April Fools Day12.激起，引起.set off13.卖完，售完sell out 14.结婚.get married 15.一片，一块a piece of16.到他起床的时候，他的哥哥已经进浴室了.By the time he got up ,his brother had already gotten in the shower 17.到他进教室的时候，老师已经开始讲课了。By the time he got to class, the teacher had already started teaching.18.为这个故事编个结尾.make up an ending for the story19.和某人分享share with 20.等候某人wait for 21.出来，花开，出版come out 22.准时on time23.及时in time24.经过，路过come by25.成功make it26.穿衣服get dressed27.邀请某人做某事invite sb . to 28.化装舞会a costume party29.熬夜stay up /sit up 30大卫在愚人节那天发生了什么事？What happened to Dave on April Fools Day ? 31近几年中国发生了巨大的变化Great changes have taken place in China in the last years.32.在着陆.land on33.数百的，成百上千的.hundreds of34.数千的，成千上万的thousands of35.遍及整个国家.across the whole country36.逃离flee from37.两者都both and38.同某人开玩笑play a joke on sb.39.一张纸a piece of paper