相关试卷
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1、 我们必须确保所有电器都关闭了。
We must all electrical appliances are turned off.
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2、 你能告诉我电是如何产生的吗？
Can you tell me electricity produced?
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3、 电在我们日常生活中被广泛使用。
Electricity is widely used life.
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4、 These (电池) need to be recycled properly after use.
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5、 (化学的) energy can be converted into electrical energy.
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6、 Follow the (规则) of the lab when doing experiments.
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7、 My father is an (工程师) who designs power plants.
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8、 The sun (照亮) the earth and gives us heat.
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9、 We should (节约) water and electricity in our daily lives.
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10、 The (电线) in the wall carries electricity to every room.
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11、 The light bulb is a useful (发明) by Thomas Edison.
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12、 Be (小心的) when using a knife to open the box.
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13、 We can't live without (电) in modern society.
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14、 从方框中选择合适的词并用其正确形式填空。
connect, produce, safety, change, difference
(1)、Always pay attention to when working with electrical equipment.(2)、Wind turbines (风力发电机) electricity from wind power.(3)、Can you this electrical energy into mechanical energy (机械能)?(4)、Please the printer to the computer via USB cable.(5)、There are many between traditional and modern power stations. -
15、 The ____ of solar energy is becoming more popular in daily life.A、use B、useful C、useless D、using
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16、 Paper-making is one of the greatest inventions in Chinese ____.A、culture B、history C、society D、art
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17、 The sky is dark. There ____ be a thunderstorm tonight.A、maybe B、may be C、may D、might
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18、 Visitors must get ____ from the office before entering the science lab.A、instruction B、permission C、invitation D、information
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19、 —____ I use your charger? Mine is broken.
—Yes, but you ____ return it before class.
A、Must; can B、Could; must C、Need; may D、Should; might -
20、 The local power station ____ electricity to over 100,000 homes in the city.A、provides B、offers C、gives D、supplies