The keys are in his possession. 钥匙在他手里。 (3)take possession of 拿过来，夺取，没收。
The policeman took possession of the thief's bag. 警察没收了小偷的包。
注意：charge (n. 负责，管理)与possession 区别。
(1)sb. be in charge of sth. = sb. take charge of sth. 负责?? She is in charge of this class.=She takes charge of this class. 她负责这个班。
(2)sth. be in the charge of sb. = sth. be in sb's charge 由??管。
This class is in the charge of her.=This class is in her charge. 这个班由他管。 6.sign n.
(1)记号，符号，手势，信号
She put her finger to her lips as a sign to be quiet.她把手指放到嘴上示意大家安静。 (2)标志，告示
Pay attention to road signs. 注意路标。 (3)迹象，征兆
Clouds are a sign of rain. 乌云是下雨的征兆。 v.
(1)签名，签字。
Sign here, please. 请在这里签字。 (2)打信号，做手势
The policeman signed to me to stop. 警察示意让我停下来。 sign 的短语搭配
sign one's name 签名，sign to sb (not) to do sth. 示意某人(不)做某事。
the/a sign of ??的迹象 7.habit n. 习惯(个人的)
He is in the habit of smoking. 他有抽烟的习惯。 Habit is second nature. ［谚］习惯成自然。 与habit 搭配的短语
have the habit of?有?的习惯
get/fall into the habit of??染上?的习惯 get rid of/kick the habit?改掉了?习惯 注意habit, custom与practice区别
habit侧重个人的习惯，而custom指的是社会或团体的风俗，习俗。长久做某事而形成practice习俗 (惯例), 可数名词。
I've got into the habit of switching on TV as soon as I get home. 我已养成一到家就打开电视的习惯。
It's difficult to get used to another country's customs.要适应另一国家的风俗习惯是很困难的。
It's not the usual practice for shops to stay open after 8 o'clock.
商店在八点以后还营业并非常例。 8.majority
n. 大部分 反义词：minority 较小部分，少数民族。
The majority of doctors believe smoking is harmful to health.
大多数的医生认为吸烟有害健康。
注意：major adj. : 较大的，较多的，主要的。n. : 主修科目。v. : 主修
The car needs major repairs. 这车子需要大修。 My major is English. 我的主修专业是英语。 9.prepare v.
(1)prepare sth. 准备；谓语动作直接体现在宾语上。 She is preparing supper. 她正在准备晚饭。
(2)prepare for sth. 为??做准备；for的宾语一般只是谓语动作要达到的目的。
The troops were being prepared for battle. 部队已作好战斗准备。
(3)be prepared for对某事作好准备。
I knew there were problems, but I was not prepared for this. 我知道有些问题，却未料到这一点。
She was prepared for anything to happen. 她已准备应付一切。
(4)be prepared to do sth. 准备并愿意做某事
I'm prepared to lend you the money if you promise to pay it back. 我愿意把钱借给你，你得答应还给我。
(5)prepare sb. for sth. 使某人对某事有所准备。
prepare yourself for a nasty shock! 有件令人十分震惊的事你要有所准备。
· 重点词组解析 · 1.come to
(1)到达。The water came to my waist. 水深达我的腰部。 (2)涉及，谈到。When it comes to politics, I know nothing.谈到政治我一无所知。
(3)总共，共计。The bill came to 1, 000 yuan. 账款共计一千元。 (4)come to oneself: 恢复知觉，苏醒。
After a while, he came to himself. 过了一会儿，他苏醒过来。