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定义：在复合句中修饰名词和代词的从句叫做定语从句。
被定语从句修饰的名词或代词是先行词。定语从句必须放在先行词之后。
定语从句要由关系代词who, whom, that，which等引导。
The student who answered the question was peter.
回答问题的那个学生叫Peter.
Grammar
定语从句
1.The books (who/which) I bought were very interesting.
2.The man( who/ which )spoke to me is a doctor.
3.The dinner( which/ who)you cooked were delicious.
4.He is the friend (who/ whom) I saw yesterday.
5.She is the girl (who / whom )helped you yesterday.
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选择合适的关系代词
Lesson125
Tea for two
两个人一起喝茶
Key words＆expressions
water ['w :t , 'w -] v. 浇水
terribly ['ter bli] adv. 非常
dry [drai] adj. 干燥的，干的
nuisance ['nju:s ns] n. 讨厌的东西或人
mean [mi:n] v. 意味着，意思是
surprise [s 'praiz] n. 惊奇，意外的事
immediately [i'mi:di tli] adv. 立即地
Who is faster
water
terribly
dry
nuisance
mean
surprise
immediately
Read the new words and translate them
Let’s read the text loudly
Find the answers to these questions
1.-What must Peter do now
-He must water the garden first.
2.-Is the garden terribly dry
-Yes it is.
3.-What did Peter have to do last summer
-He had to water the garden every day.
4.-Has Peter finished watering the garden Why
- No,he hasn’t. Because it is raining.
5.- What’s the pleasant surprise
- Peter can have tea, instead.
Language Points
vt. 给…浇水
我爷爷正在花园里浇花。
My grandpa is watering the flowers in the garden.
“必须”情态动词，后接动词原形
1.他必须完成他的工作。
2.你必须带上雨伞。
You must take the umbrella.
He must finish his homework.
have/has to do sth.
“不得不做某事”
她不得不早些离开。
下雨了，我不得不待在家里。
She has to leave early.
It;s raining outside, I have to stay at home.
“非常”，程度副词。修饰形容词和方式副词。
感叹句。What a pity!
过去不得不做某事
他昨天不得不走路回家。
我们去年夏天不得不买一个大房子。
He had to walk to home yesterday.
We had to buy a big house last summer.
by oneself
“独自，自己”
“向...外面看”
“不需要”
instead of +doing sth. / n. / pron. “代替...”
mean doing 意味着做某事
to one’s surprise 令某人吃惊的是
to my / his / her surprise
Working hard means making progress.
We will go by plane instead of taking a train.
sb. need to do sth. 某人需要做某事
sth. need doing sth.某物需要。。。
eg. Tommy needs to see a doctor.
Our classroom needs cleaning.
have to 与must
must 表示主观的认为有必要，有义务
没有时态和人称的变化 I must ,he must
have to 表示客观的环境方面的需要，“不得不”。
有时态和人称的变化 I had to, he has to
eg. I must work hard. (我觉得有必要这么做。)
I had to go home by ship last night.
(有可能没有赶上其他的航班或者火车，没选择才坐船。)
Grammar
She has to leave early.
She must leave early.
Does she have to leave early
Must she leave early
She doesn’t need to/ have to leave early.
She needn’t leave early.
陈述句
疑问句
否定句
Must I arrive on time
-Yes, you must.
-No, you needn't.
Do I have to arrive on time
-Yes, you have to.
-No, you don't have/need to.
Lesson126
Have to and do not need to
不得不和不必要
A
You have to leave early.
Do you have to leave early
You don’t have to leave early.
She must leave early.
Must she leave early
She needn’t leave early.
The End

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