1. (2023九上·杭州月考) 阅读理解
Water can run away in interesting ways. Let's try to get water from one cup into another.
What you need
·An empty glass ·A glass with blue water
·A glass with red water ·Some paper towels
What you do
Step 1
Prepare "paper bridges". Use paper towels to make two of them. They will take in and carry away water.
Step 2
Take one paper towel. Put one end of it into the glass of blue water and the other end into the empty glass.
Take the other paper towel and do the same thing to the glass of red water and the empty glass.
Step3
Watch what is going on. Be patient! The progress of the experiment goes slowly.
What you see
Your paper towels start getting wet and after some time you will find that the empty glass is starting to have water, just like the picture（→）shows.
Interestingly, if red and blue go together, it becomes purple. So, you will see three colors now. The empty glass keeps getting water. In the end, there will be the same quantity of water in each glass.
What you learn
When the paper towels touch water, there is a kind of power between water and the towel, so water goes to the paper towel and then run away. ▲. For example, water travels from the roots to the rest of the tree.

（1） Why do we need paper towels?

A . To write down what is going on. B . To clean the water after the experiment. C . To allow water to run away into another cup. D . To show the different colors in the different glasses.
（2） Which picture can be put into

A . B . C . D .
（3） Which of the following sentences is the bet to be put in▲.

A . You can also see this in plants. B . So the paper bridges become wet. C . Later, the towels will be full of water. D . In the end, water goes into all the glasses.
（4） Tom is introducing the experiment to his classmates. What may he say?

A . What a dangerous experiment it is! Please be careful. B . You need to be patient because it will last for some time. C . To do the experiment, you need to prepare some wet towels. D . Finally, you will see some chemicals at the bottom of the glasses.

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What you need	·An empty glass ·A glass with blue water ·A glass with red water ·Some paper towels
What you do	Step 1 Prepare "paper bridges". Use paper towels to make two of them. They will take in and carry away water.
	Step 2 Take one paper towel. Put one end of it into the glass of blue water and the other end into the empty glass. Take the other paper towel and do the same thing to the glass of red water and the empty glass.
	Step3 Watch what is going on. Be patient! The progress of the experiment goes slowly.
What you see	Your paper towels start getting wet and after some time you will find that the empty glass is starting to have water, just like the picture（→）shows. Interestingly, if red and blue go together, it becomes purple. So, you will see three colors now. The empty glass keeps getting water. In the end, there will be the same quantity of water in each glass.
What you learn	When the paper towels touch water, there is a kind of power between water and the towel, so water goes to the paper towel and then run away. ▲. For example, water travels from the roots to the rest of the tree.