By using less energy, you can reduce pollution that causes global (全球的) warming, An energy-saving light bulb (灯泡) uses less energy to produce the same amount of light as a regular bulb, Use the chart to compare a regular bulb with an energy-saving bulb.
Regular Light Bulb | Energy-Saving Light Bulb | |
Name | Incandescent light bulb | Compact fluorescent light bulb(CFL),energy saver |
Price | 50 cents | $5 |
Cost of energy | Used in one year (4 hours a day):$9.3 | Used in one year(4 hours a day):$2.5 |
Energy used | 75 watts(Most of this energy is wasted as heat.) | 20 watts |
Lifetime | 1.000 hours | 10,000 hours |
( ) 1.How much more energy does the regular bulb use than the CFL bulb if they are used for a year (four hours every day)?
A.75 watts. B.55 watts. C.20 watts. D.50 watts.
( ) 2.How many regular bulbs does a CFL bulb equal (等同于) in lifetime?
A.1 B.5. C.10. D.20.
( ) 3.I bought a regular bulb and Tom bought a CFL bulb.If we both used the bulb for four hours a day, how much money would Tom save in all after a year?
A.$ 2.3. B.$ 90.5. C.$ 6.8. D.$ 95.5.
( ) 4.Why do regular light bulbs use so much energy?
A.They make more light than CFL bulbs.
B.They can be used for a longer time than CFL bulbs.
C.They waste most of their energy as heat.
D.It's because of their shapes.
( ) 5.What does the writer try to tell us according to the passage?
A.Using more energy can produce less pollution.
B.Energy-saving light bulbs are cheaper than regular ones in shops.
C.It is a good idea to use energy-saving CFL bulbs instead of regular ones.
D.An energy-saving light bulb is easier to get broken.
科目:初中英语 来源: 题型:阅读理解
By using less energy, you can reduce pollution that causes global (全球的) warming, An energy-saving light bulb (灯泡) uses less energy to produce the same amount of light as a regular bulb, Use the chart to compare a regular bulb with an energy-saving bulb.
Regular Light Bulb | Energy-Saving Light Bulb | |
Name | Incandescent light bulb | Compact fluorescent light bulb(CFL),energy saver |
Price | 50 cents | $5 |
Cost of energy | Used in one year (4 hours a day):$9.3 | Used in one year(4 hours a day):$2.5 |
Energy used | 75 watts(Most of this energy is wasted as heat.) | 20 watts |
Lifetime | 1.000 hours | 10,000 hours |
( ) 1.How much more energy does the regular bulb use than the CFL bulb if they are used for a year (four hours every day)?
A.75 watts. B.55 watts. C.20 watts. D.50 watts.
( ) 2.How many regular bulbs does a CFL bulb equal (等同于) in lifetime?
A.1 B.5. C.10. D.20.
( ) 3.I bought a regular bulb and Tom bought a CFL bulb.If we both used the bulb for four hours a day, how much money would Tom save in all after a year?
A.$ 2.3. B.$ 90.5. C.$ 6.8. D.$ 95.5.
( ) 4.Why do regular light bulbs use so much energy?
A.They make more light than CFL bulbs.
B.They can be used for a longer time than CFL bulbs.
C.They waste most of their energy as heat.
D.It's because of their shapes.
( ) 5.What does the writer try to tell us according to the passage?
A.Using more energy can produce less pollution.
B.Energy-saving light bulbs are cheaper than regular ones in shops.
C.It is a good idea to use energy-saving CFL bulbs instead of regular ones.
D.An energy-saving light bulb is easier to get broken.
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