Chuyên đề:
CÁCH DÙNG CÁC ĐẠI TỪ QUAN HỆ


I. MỤC ĐÍCH CHUYÊN ĐỀ
Không phải ngẫu nhiên mà người ta coi đại từ quan hệ là một trong “tứ trụ” trong cấu trúc tiếng Anh. Đại từ quan hệ được sử dụng rất rộng rãi cả trong văn nói và trong văn viết.
II. KIẾN THỨC CƠ BẢN
Who – that (chủ ngữ chỉ người)
+The man is my teacher. The man is at the door.
- The man who(that)is at the door is my teacher.
(phần gạch chân là mệnh đề phụ tính ngữ bổ nghĩa cho “the man”).
The girl is from Vietnam. The girl is wearing red.
- The girl who is wearing red is from Vietnam.


Which – that (chủ ngữ chỉ vật)
+The book is interesting. The book is on the table.
-The book which is on the table is interesting.
+The pencil is Nam’s. The pencil is red and blue.
-The pencil which is red and blue is Nam’s.
Whom, which, that (tân ngữ)
3.1. Whom (dùng cho người), that (dùng cho cả người và vật), which (dùng cho vật): là tân ngữ.
I know the man. You met the man yesterday.
- I know the man whom/ that you met yesterday.
I haven’t found the pen. I lost the pen yesterday.
-I haven’t found the pen which/ that I lost yesterday.
I don’t know the woman. You are talking about the woman now.
-I don’t know the woman whom/ that you are talking about now.
= I don’t know the woman about whom you are talking now. (không dùng “that”)
We like the book. Your mother spoke about the book yesterday.
-We like the book which/ that your mother spoke about yesterday.
= We like the book about which your mother spoke yesterday. (không dùng “that”)

Chú ý: Nếu giới từ đứng trước đại từ quan hệ thì không dùng “that” .
Whose – of which (sở hữu)
I teach the children. Their house is next to mine.
- I teach the children whose house is next to mine.
I work in the school. The gate of the school is blue.
- I work in the school, of which the gate is blue.
= I work in the school, the gate of which is blue.

When = on which (day, date), when = in which (year)
I always remember the year . the war ended in that year.
- I always remember the year when/ in which the war ended.
She reminded me of the date. We first met on that date.
- She reminded me of the date when/ on which we first met.

Where = in (at, to) which
We visited the village last week. We were born in the village.
- We visited the village where/ in which we were born.

Why = for which
He told me the reason. He was late for the reason.
- He told me the reason why/ for which he was late.
Mệnh đề phụ tính ngữ xác định và không xác định
Mệnh đề phụ tính ngữ xác định: là thành phần cơ bản trong câu, không thể thiếu, không thể bỏ đi được (kh«ng cã dÊu ph¶y gi÷a hai mÖnh ®Ò).
The book is interesting. The book is on the table
- the book which is on the table is interesting.
Mệnh đề phụ tính ngữ không xác định: là mệnh đề cung cấp thêm thông tin, là thành phần không cơ bản, có thể bỏ đi được (gi÷a hai mÖnh ®Ò cã dÊu ph¶y, mệnh đề tính ngữ không xác định khi thành phần trong câu đã được xác định bằng tính từ sở hữu, së h÷u c¸ch, danh tõ riªng, tính từ chỉ định hoặc yếu tố duy nhất).
Nam’s book is interesting. It is on the table.
- Nam’s book, which is on the table, is interesting.
Từ chỉ lượng với đại từ quan hệ
some of/most of/a lot of/both of/neither of/a pair of…+ whom/ which
I go to school with some friends. Most of them are boys.
- I go to school with some friends, most of whom are boys.
We sent him two pictures. Both of them were new.
- We sent him two pictures, both of which were new.

Các trường hợp không dùng “that”
Giới từ đứng trước đại từ quan hệ
I know the man with whom you live
Mệnh đề có chứa từ chỉ lượng
They met many children, most of whom were girls.
Đại từ quan hệ thay thế cả mệnh đề đứng trước nó
He often sailed across the lake, which nobody had done before.
THAT:
Sau 1 tiền trí từ hỗn hợp : (người vật lẫn lộn)
Ex: The old man and two dogs made much noise . They passed my house yesterday.
?The old man and two dogs that I passed my house yesterday made much noise.
Sau 1 tính từ cực cấp (so sánh bậc nhất = SUPERLATIVE)
Trong câu thường có THE BEST và THE MOST.
Ex: This is the most beautiful dress that I have.
-Sau các từ sau:
ALL, EVERY, VERY, ONLY, FIRST, LAST, MUCH, LITTLE, SOME, ANY, NO .
Ex1: He reads every book that he can borrow.
Ex 2 : You are only person that can help me.
Sau "IT + BE + .THAT = chính là"
Ex: It is my friend that wrote this sentence.

Mệnh đề tính ngữ rút gọn
1. Mệnh đề tính ngữ rút gọn với phân từ
The Royal College, which was founded in 1076, is the oldest university in this country.
- The Royal College, founded in 1076, is the oldest university in this country.
Applications which are received after the deadline cannot be considered.
- Applications received after the deadline cannot be considered.
People who travelled into the city every day are used to the hold-ups.
- People travelling into the city every day are used to the hold-ups.
2. Mệnh đề tính ngữ rút gọn ®¹i tõ quan hÖ vµ to be
Oak, which is one of the most durable hard woods, is often used to make furniture.
- Oak, one of the most durable hard woods, is often used to make furniture.

3. Mệnh đề tính ngữ rút gọn với động từ nguyên mẫu
Chúng ta dùng mệnh đề tính ngữ rút gọn với động từ nguyên mẫu sau các số thứ tự (first, second...), hình thức so sánh bậc nhất (oldest...), next, last, only:
Who was the first person that conquered Mount Everest?
Who was the first person to conquer Mount Everest?
She is the only student who has signed up for the course. - She is the only student to sign up for the course.

Các trường hợp dùng dấu phẩy
Khi danh từ đứng trước who, which, whom... là danh từ riêng, tên.
Ha Noi, which ....
Mary, who is ...
Có “this ,that ,these ,those” đứng trước danh từ :
This book, which ....
Có sở hữu đứng trước danh từ :
My mother, who is ....
Là vật duy nhất ai cũng biết : Sun ( mặt trời ), moon ( mặt trăng )
The Sun, which ...

1.Peter wanted to have dinner with us. He hated eating on his own.


2. We saw several houses. Most of them were modern.


3. My brother has just sold his town house. His dream is to live in a farm house.


4. We pay a visit to the house. We lived in the house 10 years ago.


5. They’ll never forget the day. Their wedding took place on that day.
Peter, who hated eating on his own, wanted to have dinner with us
We saw several houses, most of which were modern.
My brother, whose dream is to live in a farm house, has just sold his town house.
We pay a visit to the house where (in which) we lived 10 years ago.
They’ll never forget the day(when) on which their wedding took place.
6. What was the name of the year? Your son was born in that year.


7. Hai phong is a nice city. Its streets are green.


8. I like the dog. Its fur is white.


9. Felipe bought a camera. The camera has three lenses.


10. Frank is the man. We are going to nominate Frank for the office of treasurer.
What was the name of the year (when) in which your son was born?
Hai phong, whose streets (the streets of which) are green, is a nice city.
I like the dog whose fur (the fur of which) is white.
Felipe bought a camera which (that ) has three lenses.
Frank is the man whom we are going to nominate for the office of treasurer.
She gives her children everything……….they want.
a. that b. who c. whom d. what
2. Tell me……….you want and I will try to help you.
a. that b. what c. who d .which
3. The place………….we spent our holiday was really beautiful.
a.what b.who c.where d.which
4. What was the name of the girl………..passport was stolen?
a.whose b.who c.which d.when
5. The bed………….I slept in was too soft.
a.whose b.which c.what d.who
6. Nora is the only person………...understands me.
a.which b who c. what d . whose
7. Why do you always disagree with everything….I say?
a.who b. which c.when d.where
8. This is an awful film. It is the worst………..I have never seen.
a.who b. that c. what d. whom
9. The hotel ………...we stayed was not clean.
a.who b. that c. where d. when
10. The last time ………..I saw her, she looked very beautiful.
a.who b.that c. where d. when
11. What was the name of the people ………....car had broken down.
a.which b. who c.whom d.whose
12. I recently went back to the town……..I was born. a.what b. where c.who d.which
13. The reason………..I phoned him was to invite him to a party.
a. what b. whose c.why d.which
14. I don`t agree with ………....you have just said. a.what b. who c.when d.which
15. She told me her address…………..I wrote on a piece of paper.
a.what b. which c.when d. where
16. The dress didn`t fit her, so she took it back to the shop……....she had bought it.
a.where b.which c. what d. when
17. Do you know the girl………….Tom is talking to? a.whom b.what c.which d. whose
18. I gave her all the money …………..I had.
a.that b.what c.when d.whose
19. The party………...we went to wasn`t very enjoyable.
a.who b.when c.that d.where
20. The stories………...Tom tells are usually very funny.
a.when b.that c.where d.who
21. I met the woman………....can speak six languages. a.who b.that c.which d.whom
22. Have you seen the money ………..was on the table?
a.who b.which c.where d.whom
23. Where is the picture……….. was on the wall? a.when b.where c.which d.who
24. I don`t like people ………...never stop talking.
a.who b.which c.whom d.whose
25. Why does she always wear clothes……….are too small for her?
a.which b.who c.whose d.where
26. The factory…...John works in is the biggest in town.
a.when b.where c.which d.how
27. Have you ever seen the photographs….Ann took?
a.that b.where c.when d.who
28. Everybody………….went to the party enjoyed it very much.
a. that b. whose c.which d.who
29. 1945 was the year……the second world war ended.
a.which b.why c.when d.where
30. Is there a shop near hear…………..I can buy a postcard?
a.when b.which c.where d.who