1 . We should remember ________ all the lights before leaving the classroom.
| A．to switch on | B．to switch off | C．switching on | D．switching off |
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2 . The machine needs repairing. It doesn’t ________.
| A．open | B．switch on | C．work | D．turn off |
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3 . 翻译短语
1. electricity safety tips___________________________
2. electrical appliances__________________________
3. start a fire__________________________
4. at least one meter away from…__________________________
5. put an object__________________________
6. in a microwave__________________________
7. make sure__________________________
8. 使我们的生活更容易__________________________
9. 安全使用它们__________________________
10. 把……打开__________________________
11. 电饭锅__________________________
12. 在洗衣机里__________________________
1. electricity safety tips
2. electrical appliances
3. start a fire
4. at least one meter away from…
5. put an object
6. in a microwave
7. make sure
8. 使我们的生活更容易
9. 安全使用它们
10. 把……打开
11. 电饭锅
12. 在洗衣机里
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4 . To save electricity, we need to ________ the light when we leave the room.
| A．switch on | B．switch off | C．put on | D．put off |
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5 . When you leave the reading room, don’t leave the lights on—you should ________.
| A．switch on them | B．switch them off | C．switch them on | D．switch off them |
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6 . When you ________ the classroom, please remember ________ the light.
| A．enter；turning on | B．leave；to switch on | C．leave；to switch off | D．leave；to turn up |
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7 . Don’t forget ________ the computer when you leave the room.
| A．to switch on | B．switching on | C．to switch off | D．switching off |
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8 . 把搅拌器打开10分钟。
______ _______ the blender for ten minutes.
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9 . Please ________ the CD player and ________ the CDs.
| A．turn off, put up | B．turn on, put in | C．switch on, plug in | D．switch off, put away |
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