3. The preposition in these clauses can go at the end of the clause, e.g. This is Stratford-on-Avon, which you have all heard about.

This pattern is often used in spoken English, but in written or formal English you can also put the preposition before the pronoun. e.g. Stratford-on-Avon, about which many people have written is Shakespeare's birthplace.

4. Non-restrictive clauses can be introduced by expressions like all of, many of + relative pronoun:

Examples:

a. There were a lot of people at the party, many of whom I had known for years.

b. He was carrying his belongings, many of which were broken.

5. The relative pronoun which at the beginning of a non-restrictive attributive clause, can refer to all the information contained in the previous part of the sentence, rather than to just one word.

a. Chris did really well in his exams, which was a big surprise. (= the fact that he did well in his exams was a big surprise).

b. An elephant and a mouse fell in love, which is most unusual. (= the fact that they fell in love is unusual).

T: Now go back the reading passage on Pages 38-39. Pick out the sentences containing non-restrictive attributive clause.

The sentences are:

1. Xie Lei, who is 21 yeas old, has come to our university to study for a business qualification.

2. "... You have to get used to a whole new way of life, which can take up all your concentration in the beginning," explained Xie Lei, who had lived all her life in the same city in China.

3. He wanted to know what I thought, which confused me because I thought that the author of the article knew far more than I did.

T: Let's do some practice with the non-restrictive attributive clause. Try to use the right relative pronouns and adverbs to complete the sentences.

Show the following sentences on the screen.

1) His dog, which was now very old, became ill and died.

2) Yesterday I met Li Lei, who seemed to be very busy.

3) Football, which is a very interesting game, is played all over the world.

4) He lives in the city, where there is a high tower.

5) The People's Republic of China was founded in 1949, when he was born.

Then deal with Exercises 2-3 on Page 41.

Step Ⅳ Exercises

Since the students have known the differences between restrictive attributive clause and non-restrictive attributive clause, let them do some practice with them.

Step Ⅴ Homework

Finish Exercise 1 and Exercise 3 on Page 81.