2. Useful expressions in L74 and L75 1. design new machines2. to one’s surprise 3. lose one’s job4. get a job 5. lie to sb.6. pretend to do 7. call at (a place)8. heard about 9. find out 10. make a decision 11. tell a lie 12. Does it matter if…? 13. look down upon 14. offer sth. to sb. 15. have sb. doing 16. think of 17. for a moment or two

4. 限制性定语从句和非限制性定语从句： My sister, who is twenty, works in a bank. The man who came here yesterday has come again. 限制性定语从句 是先行词在意义上不可缺少的定语， 如果去掉，主句的意思就不完整或失去意义。这种从 句和主句关系十分密切， 写时不用逗号分开。 非限制性定语从句 和主句关系不很密切，只是对先 行词作些附加说明， 如果去掉，主句的意思仍然清楚。 这种从句， 写时往往逗号分开。

5. Mr King, whose legs were badly hurt, was quickly taken to hospital. The boss in whose department Mr King worked had heard about the accident. We shall make a decision about Ms King, whose story I have just told you. The boss of the company, whose name was Mr Little, told the story about Ms King.

6. Mr King, whose legs were badly hurt, was quickly taken to hospital. Mr King was quickly taken to hospital. Her legs were badly hurt. Her We shall make a decision about Ms King, whose story I have told you. We shall make a decision about Ms King. I have told you her story. her

7. The boss of the company, whose name was Mr Little, told the story about Ms King. The boss of the company told the story about…. His name was Mr Little. His The boss in whose department Mr King worked had heard about the accident. The boss had heard about the accident. Mr King worked in his department. his

8. whose 在定语从句中作定语，表示引导词 与 whose 后的名词为所属关系。 whose 多指人，也可指物，指物时可与 of which 互换使用。 This is the book whose cover is blue. This is the book of which the cover is blue.

9. Do you know the girl whose hair is very short in our class? Do you know the girl? Her hair is very short in our class. He is the student. I broke his pencil yesterday. He is the student whose pencil I broke yesterday.

10. This teacher, with whose son I work, is liked by all the students. This teacher is liked by all the students. I work with her son. The chair is being repaired now. The legs of the chair are broken. The chair whose legs are broken is being repaired now.

11. Which baby is mine ?

12. Which house is mine ?

13. Practice: Work in pairs to practise Part 3 on page 19. Work in pairs to finish Exercise 2 on page 74. Try to finish the sentences in Exercise 1 on page 73.

14. Answers: Exercise 1, page 73 1. The man whose right eyes was blind was a very famous doctor in the town. 2. The boss in whose department Mr Li worked looked down upon women. 3. The man whose car was stolen went to the police station.

15. Answers: Exercise 1, page 73 4. The boy whose legs were hurt was taken to hospital by a taxi driver. 5. The girl whose name was Mary found a school bag on the playground and gave it to the headmaster.

16. 复习定语从句中的关系副词： when, where, why

17. when 在定语从句中作时间状语，相当于 “ 介词 + 关系代词（ which ） ” 。 I’ll never forget the day when I joined the league. on which where 在定语从句中作地点状语，相当于 “ 介词 + 关系代词（ which ） ” 。 This is the house where I lived two years ago. in which

18. why 在定语从句中作原因状语，相当于 “ 介词 for+ 关系代词（ which ） ” 。 Do you know the reason why she was late. for which

19. Homework: Finish Exercise 3 on page 72 in your exercise-book.