Make a water clock 
In ancient times，some people measured time using a simple water clock，like this：
You'll need
●Ruler
●Sticky earth
●2 paper cups
●Measuring cup
●Marker
●Sticky tape
●Nail
●Watch or clock
What happened？
It always takes about the same amount of time to empty the cup.
You can measure longer times with larger cups.
（1）Both Step 1 and Step 5 require us to AA.
A．draw a line
B．make a hole
C．use the nail
D．empty the cup
（2）To make a water clock，we still need BBbesides the eight things listed in the passage.
A．hole
B．water
C．coffee
D．yogurt
（3）According to the passage，if we want to count two minutes，we can DD.
A．make a smaller hole in the cup
B．make a new one with larger cups
C．not cover the hole with our finger
D．draw a shorter line in the upper cup
【答案】A；B；D
【解答】
【點評】
聲明：本試題解析著作權屬菁優網所有，未經書面同意，不得復制發布。
發布：2024/5/27 14:0:0組卷：3引用：1難度：0.8
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