a. Make sentences using in order not to, so as not to．

　　(1)go to school early，not be late

(2)review his lessons carefully，not fail the exam

　　(3)listen attentively，not miss any words

Suggested answers:

　　(1)We go to school early in order not to be late．

We go to school early so as not to be late．

(2)He reviewed his lessons carefully in order not to fail the exam．

He reviewed his lessons carefully so as not to fail the exam．

(3)We listen attentively in order not to miss any words．

　　　We listen attentively so as not to miss any words．

Step 4 Function

a. Read the following sentences. Pay more attention to the words in bold.

1. The doctor told Adam that he could die if he didn't stop taking crack cocaine．So Adam took the doctor's advice and stopped immediately．

2. About 21 million people died during the 1990s as a result of smoking．

3. As a result，cocaine users sometimes have heart attacks．

b. Now complete the sentences with so, as a result or as a result of.

1. Adam knew that taking drugs was bad, _________he stopped.

2. He stopped taking drugs ________meeting the doctor.

3. Adam met a doctor who explained the problem. __________he stopped taking cocaine.

4. Crack cocaine is very addictive, ________users cannot easily stop using it.

He was extremely ill _________taking crack cocaine.