新概念英语第一册语法及单词Lesson121~122
语法 Grammar in use
定语从句
定语从句像形容词一样起修饰作用，但位于所修饰的名词之后。定语从句由关系代词引导，紧跟在它所修饰的成分后面。关系代词 who，whom与 that修饰人，which与 that修饰东西。关系代词指代从句的主语或宾语，同时又充当连接词，把从句和主句连接起来。请看例句：
(1)关系代词作从句的主语(who/which/that)：
The dog which/that is carrying the basket is mine.
叼着篮子的那只狗是我的。
He's the porter who/that carried my suitcase.
他就是那个扛着我的衣箱的搬运工。
(2)关系代词作从句的宾语(whom/that/which)：
They're the windows which/that the children broke yesterday.
这些就是孩子们昨天打碎的窗户。
She's the lady whom I served yesterday.
她就是我昨天服务过的那位女士。
词汇学习 Word study
1.recognize v.
(1)认出;认识：
I recognize him now.
我现在认出他来了。
Can you recognize this tune?
你能听出这支曲调吗?
(2)承认;确认：
I recognize that he is more capable than I am.
我承认他比我更有能力。
They recognized Richard as his lawful heir.
他们确认理查德为他的合法继承人。
Are British medical qualifications recognized in other European countries?
英国的医生执照在欧洲其他国家能否得到承认?
2.serve v.
(1)服务;接待;侍候：
Are you being served, sir?
先生，有人为您服务吗?
A young waiter served them.
一位年轻的侍者侍候他们进餐。
(2)供应;摆出(食物或饮料等)：
What time is breakfast served in this hotel?
这个饭店里什么时候供应早餐?
Serve it to the ladies first.
把它先端给女士们。
(3)为……服务/服役;任职：
The old cook has served the family for 30 years.
这位老厨师已为这家干了30年了。
He began to serve in the Navy in 1960.
他从1960年起开始在海军服役。
新概念英语第一册语法及单词Lesson123~124
语法 Grammar in use
定语从句中的省略
当关系代词代表主语并且从句中的谓语动词是(现在)进行时态时，关系代词及助动词be均可省略。如果关系代词在从句中代表宾语，则往往可以省略。此外，定语从句可用介词结尾。
请分别看以下的例句：
The woman standing behind the counter served me.
站在柜台后边的那位妇女为我服务/招待了我。
This is the book I bought yesterday.
这就是我昨天买的那本书。
The man I served was wearing a hat.
我招待过的那个人当时戴着一顶帽子。
That's the ship we travelled on.
那就是我们旅行时乘的船。
That's the man I told you about.
那就是我告诉过你有关情况的那个人。
词汇学习 Word study
1.travel v.
(1)旅行;游历：
He said that if he had a lot of money he would travel around the world.
他说，如果他有很多钱的话，他将会周游全世界。
(2)行进;(被)传送：
Light travels faster than sound at the speed of 300,000 kilometres per second.
光速比声速要快，为每秒钟30万公里。
The news didn't travel as fast as we had expected.
这消息传播得不如我们所预料得那样快。
2.offer v.
(1)(主动)给予;提供：
He is offered a job in Canada.
有人提供给他一份在加拿大的工作。
We offered some coffee to the guests.
我们为客人们提供了咖啡。
(2)提出;出(价)：
Do you have any good suggestions to offer?
你能否提供一些好的建议?
I'll offer you ￡ 30,000 for the house.
这所房子我愿出3万英镑买下来。
(3)(主动)表示愿意，提议：
He offered to help me with my research paper.
他表示愿意帮助我一起做我的研究论文。
‘I could lend you some books,’Jane offered.
“我可以借你一些书，”简自告奋勇地提议。
3.grow v.
(1)生长;成长：
His hair has grown too long.
他的头发长得太长了。
The trees have grown rapidly.
树木生长得快。
(2)使生长;留(须发)：
He grew a beard during the trip.
他在旅行时留了胡子。
We grew a lot of roses in our garden.
我们在自己的花园里种植了大量的玫瑰花。
新概念英语第一册语法及单词Lesson125~126
语法 Grammar in use
must, have to和 needn't
这3个词都表示必要性。在前面已对 must和 have to介绍过。
must是情态助动词，而have to是普通动词，二者在肯定句中一般可以互换，表示不可逃避的义务或责任。must更带有说话人的主观色彩，而have to则更强调客观要求和外界影响。
must一般只能表达现在的必要性，而have to则可以表达过去或将来的必要性。对比例句：
Must you go now?
你必须现在就走吗?
Yes，I have to leave at once.
2020最新新概念英语第一册语法及单词Lesson121~126
