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1 Read and match.（读一读，连一连。）
Time flows in seasons — spring, summer, autumn and winter. Time ticks in minutes, hours or days. Time is always with us. But how can we tell the time?
① A stick（棍子）can tell the time. Make the stick stand on the ground. When the sun moves, the shadow（影子）moves too. But it doesn’t work on cloudy days or at night.
A.
② A water clock can tell the time at night or on cloudy days. Watch the water and numbers. But be careful, the water may become ice on cold days!
③ Now watches and clocks can tell us the time. The hour hand and the minute hand tell us the time clearly.
C.
Time flows in seasons — spring, summer, autumn and winter. Time ticks in minutes, hours or days. Time is always with us. But how can we tell the time?
① A stick（棍子）can tell the time. Make the stick stand on the ground. When the sun moves, the shadow（影子）moves too. But it doesn’t work on cloudy days or at night.
A.
② A water clock can tell the time at night or on cloudy days. Watch the water and numbers. But be careful, the water may become ice on cold days!
③ Now watches and clocks can tell us the time. The hour hand and the minute hand tell us the time clearly.
C.
答案
1. C 2. B 3. A
