S2: At the same time, too.

T: Excellent! What about the third one?

S3: The action in the main clause happens first.

T: Quite right! How about the fourth one?

S4: Also the action in the subordinate clause happens first.

T: And the fifth one?

S5: The action in the subordinate clause happens first.

Through this exercise, the Ss can understand adverbial clause of time.

Task 3 Practice

T: OK! From this, I can see you have grasped adverbial clause of time. Now turn to Page 24 and please do Activities 1－3 in Grammar 1.

A few minutes later, check the answers.

Step II Grammar 2

Task 1 Presentation

Write the following two sentences on the blackboard.

1. After they had become stars in their own country, the Beatles toured the United States.

2. Before they visited India, they had recorded seven albums.

Then ask the Ss the following questions:

In the first sentence, which came first, becoming stars in their own country or touring the United States? What about the second sentence?

A few minutes later, check the answers.

Task 2 Explanation

T: The past perfect tense is used to express a certain action, which happened before another past-time action. Please pay attention to the difference between the past tense and the past perfect tense. Look at the following sentences.

1. The meeting started at six o'clock. (The action started happens at six o'clock.)

2. The meeting had started when we arrived at the hall. (Had started happens before arrived.)

3. He had worked in Beijing for ten years before he came to our school. (Had worked