重点讲解：
1. fall asleep
入睡；睡着；进入梦乡；
eg. He was wont to fall asleep after supper.
他老是吃完晚饭就打盹vHxu44;oM(。
eg. He fell asleep while (he was) doing his homework.
他做著做著功课就睡著了OaXM55kAbc1.|。
2. sth. get to sb.
对…产生影响；使痛苦；
eg. That's the first time I lost my cool in 20 years in this job. This whole thing's getting to me.
干这份工作20年来，我头一次失去了冷静，这一切让我大伤脑筋6cxl4CRK[2N-.]H(。
eg. Her constant nagging is beginning to get to him.
她不停地唠叨惹得他生起气来b,-Y3..DabE0。
3. in between
在…之间；处于…中间；
eg. Up to then, they'd merrily bashed out albums in between tours.
那时，他们已经利用巡演的间隙轻松炮制了多张专辑8fjEAm|8**0。
eg. We have two lessons this morning, but there's some free time in between.
今天上午我们有两节课，课间有些休息时间!9so|IA=Df;CeB。
4. on average
平均起来；按平均值；
eg. There is very little rain here, merely 60 mm in a year on average.
这儿雨水极少，平均每年只有60毫米p=Ww3_QGs+DA~qJh。
eg. On the average, there are 300 tourists a week.
每星期平均有300名游客SJwP9&KL2I4。
5. add to
添加；增加；掺加；
eg. A few jokes will add a final fillip to your speech.
几句笑话会给你的演说添些生气.RE-t]|lHDOB。
eg. I have nothing to add to my earlier statement.
我对我先前说的话，没有什么补充的6hoPzwo,@+8OESP3W^2u。