Lesson 6
12. help oneself to sth:
a. 擅自拿用
John helped himself to some candy without asking.
__John没问就自己拿了些糖。____
My roommate helped herself to my clothes without asking me.
___我室友不问我就乱穿我衣服。___
b. 自便
This food is a Sichuan specialty. Help yourself, please.
这食物是四川特色，请自便哦_______________________
<!--[if !supportLists]-->13. <!--[endif]-->worth 值一定金额的
固定用法：钱+worth+of+n：价值多少的n
They bought $4,000 worth of equipment._ 他们购买了价值4ooo美元的设备。___
数十万美元的珠宝__ hundreds of thousands dollars worth of jewellery __
价值几百万的别墅_ millions of dollars worth of villa//several million dollars worth of villa __
<!--[if !supportLists]-->14. <!--[endif]-->raid--n. a sudden short attack
Two men made a smash-and-grab raid on the camera shop.
两个男人在相机店砸橱窗抢劫。____________________
这次银行劫案中一名保安员受伤。
In this bank raid, a security guard was injured._________
<!--[if !supportLists]-->15. <!--[endif]-->scramble（v)--to move hurriedly;climb awkwardly
When we heard the order" Play ball", We began to scramble for the ball.
_当我们听见“打球”的命令，我们开始抢球。________
The valley proved very wild and rough, and their walk became rather a scramble.
__这个山谷原来非常荒凉崎岖，他们在里面只能连滚带爬的前进___________
<!--[if !supportLists]-->16. <!--[endif]-->at full/high speed/ with all speed
Officials said the trains were traveling at full speed and most of the passengers were asleep at the time of the crash.
__官员说，发生撞车时火车以全速前进，大多数乘客都在睡觉___________
18.非限制性定语从句
1) 定语从句有限制性和非限制性两种。限制性定语从句是先行词不可缺少的部分，去掉它主句意思往往不明确；非限制性定语从句是先行词的附加说明，去掉了也不会影响主句的意思，它与主句之间通常用逗号分开，例如：
This is the house which_ we bought last month.
这是我们上个月买的那幢房子。（限制性）
The house, _which_ we bought last month, is very nice.
这幢房子很漂亮，是我们上个月买的。（非限制性）
2) 当先行词是专有名词或物主代词和指示代词所修饰时，其后的定语从句通常是非限制性的，例如：
Charles Smith, _who_ was my former teacher, retired last year. 查理•史密斯去年退休了，他曾经是我的老师。
My house,_which_ I bought last year, has got a lovely garden.我去年买的的那幢房子带着个漂亮的花园。
This novel,_which_ I have read three times, is very touching. 这本小说很动人，我已经读了三遍。
3) 非限制性定语从句还能将整个主句作为先行词, 对其进行修饰, 这时从句谓语动词要用第三人称单数，例如：
He seems not to have grasped what I meant,which_ greatly upsets me. 他似乎没抓住我的意思，这使我心烦。
Liquid water changes to vapor, _which is called evaporation. 液态水变为蒸汽，这就叫做蒸发。
说明：关系代词that和关系副词why不能引导非限制性定语从句。
19.定语从句关系副词和关系代词复习
<!--[if !supportLists]-->1) <!--[endif]-->This is the house __in___ _which____ I lived two years ago.
<!--[if !supportLists]-->2) <!--[endif]-->This is the house __where_____ I lived two years ago.
<!--[if !supportLists]-->3) <!--[endif]-->Do you remember the day_on____ _which____you joined our club?
<!--[if !supportLists]-->4) <!--[endif]-->Do you remember the day _when____ you joined our club?
<!--[if !supportLists]-->5) <!--[endif]-->Feburary 14th is the day _when_____is called "The Valentine's Day".
<!--[if !supportLists]-->6) <!--[endif]-->The piece of land__which_____was bought by a real estate company 3 years ago has been turned into a public garden.
