题目内容：

Mind maps are a great way of showing a picture of information.They work very well in all kinds of learning.Here is an example to show us how to draw a mind map.

1Draw a circle and write the word subject in.

For example:transport

2Brainstorm some word groups and think of headings for each one．For example：

land transport

air transport

3Draw short lines from the center circle outwards．Add more circles and write the new word groups inside．Then try to draw more lines and circles for more sub-groups(从属词群)．

 

More words,more lines and circles.

To make the mind map even better，use color to show important ideas or parts of the map．

1.____

Step2：

2.____

3.____

Step3：

4.____

B.将上述A、B、C、D四个选项组成一幅思维导图（组图时可用字母编号或所给词汇）

5.____