1. (8 points) In the length measurement units of our country, 1 meter $=3$ feet. 1 rod $=10$ feet, 1 kilometer $=2$ li, then 1 li $=$ rods.
【Analysis】According to the given 1 meter $=3$ feet. 1丈 $=10$ feet, it can be known that: 1 kilometer $=1000$ meters $=3000$ feet $=300$ 丈; and 1 kilometer $=2$ li, so 1 li $=300$ 丈 $\div 2=150$ 丈.

【Solution】Solution: 1 kilometer $=1000$ meters $=3000$ feet $=300$ 丈;
Therefore: 1 li $=300$ 丈 $\div 2=150$ 丈.
The answer is: 150 .