27. light bulbs by Edison in 1892? A.Was, invented B.Did, invented C.Are ,invented D.Were ,invented 查看更多

 

题目列表(包括答案和解析)

Did you see snow in your hometown last winter? Did you feel it was warmer than before?

"There have been 21 warm winters in China since 1986," said scientists. They also said that in the past 100 years, as the global (全球的) temperatures went up by 0.74 °C , the temperature in North China has climbed 1.4 °C in only 50 years.

China needs to take quick action to cut carbon dioxide emission (排放)

because it's the main reason for global warming. The good news is that China has seen the importance of going green. China set the goal of cutting energy use by 20% and pollution emission by 10% in the 11th Five-Year Plan.

Can you slow down global warming? Sure! You and your family can take steps to cut the amount of carbon dioxide that is sent out into the air.

Here are some pieces of advice to help you save the earth..

Wear used clothes. Wearing your brother's, sister's or dad's old T-shirt means you save the energy.                                                                       

Change your light bulbs (灯泡). Use energy-saving light bulbs. And don't forget to turn off the lights when you leave a room and turn off your television and computer when they are not in use!

Ride the bus. Taking a bus saves a lot of oil every year.

Say no to plastic bags. The next time your parents go to the market, ask them to use baskets

Open a window. Don't use the air conditioner, and let some fresh air in. When you have to use the conditioner, set the temperature higher in the summer and lower in the winter to save energy.

Make small changes in your daily life. Don't use paper cups, bags and boxes.

It's time for all of us to do something to save the earth.

1. How many pieces of advice are there in this passage?

A. Three.         B. Four          C. Five.           D Six

2. Which of the following is true?

A.It's a pity to wear your dad's old T-shirts.

B.Using air conditioners may be a waste of energy.

C.Taking a bus wastes a lot of oil every year.

D.Using paper bags saves energy a lot.

3. The passage is mainly about the ways to ____.

A.slow down global warming

B.make energy

C.change our daily life

D.change the world weather

 

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Did you see snow in your hometown last winter? Did you feel it was warmer than before?
"There have been 21 warm winters in China since 1986," said scientists. They also said that in the past 100 years, as the global (全球的) temperatures went up by 0.74 °C , the temperature in North China has climbed 1.4 °C in only 50 years.
China needs to take quick action to cut carbon dioxide emission (排放)
because it's the main reason for global warming. The good news is that China has seen the importance of going green. China set the goal of cutting energy use by 20% and pollution emission by 10% in the 11th Five-Year Plan.
Can you slow down global warming? Sure! You and your family can take steps to cut the amount of carbon dioxide that is sent out into the air.
Here are some pieces of advice to help you save the earth..
Wear used clothes. Wearing your brother's, sister's or dad's old T-shirt means you save the energy.                                                                       
Change your light bulbs (灯泡). Use energy-saving light bulbs. And don't forget to turn off the lights when you leave a room and turn off your television and computer when they are not in use!
Ride the bus. Taking a bus saves a lot of oil every year.
Say no to plastic bags. The next time your parents go to the market, ask them to use baskets
Open a window. Don't use the air conditioner, and let some fresh air in. When you have to use the conditioner, set the temperature higher in the summer and lower in the winter to save energy.
Make small changes in your daily life. Don't use paper cups, bags and boxes.
It's time for all of us to do something to save the earth.
【小题1】 How many pieces of advice are there in this passage?
A. Three.         B. Four          C. Five.           D Six
【小题2】 Which of the following is true?

A.It's a pity to wear your dad's old T-shirts.
B.Using air conditioners may be a waste of energy.
C.Taking a bus wastes a lot of oil every year.
D.Using paper bags saves energy a lot.
【小题3】 The passage is mainly about the ways to ____.
A.slow down global warming
B.make energy
C.change our daily life
D.change the world weather

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根据短文内容,找出相关信息,完成表格。
    Scientists said that in the past 100 years, as the global (全球的) temperatures went up by 0.74℃, the
temperature in North China has climbed 1.4℃ in only 50 years.
    China needs to to cut carbon dioxide (二氧化碳) emission (排放), because it's the main reason for global
warming. The good news is that China has seen the importance of going green. China set the goal of cutting
energy use by 20 and pollution emission by 10 in the 11th Five-Year Plan.
    Can you slow down global warming? Sure! (3)You and your family can take steps to cut the amount of
carbon dioxide that is sent out into the air.
    Here are some pieces of advice to help you save the earth.
    ▲ Wear used clothes. Wearing your brother's, sister's or dad's old T-shirt means you save the energy.
    ▲ Change your light bulbs (灯泡). Use energy-saving light bulbs. And don't forget to turn off the lights
when you leave a room and turn off your television and computer when they are not in use!
    ▲ Ride the bus. Taking a bus saves a lot of oil every year.
    ▲ Say no to plastic bags. The next time your parents go to the market, ask them to use baskets.
    ▲ Open a window. Don't use the air conditioner (空调), and let some fresh air in. When you have to
use the conditioner, set the temperature higher in the summer and lower in the winter to save energy.
        Make small changes in your daily life. Don't use paper cups, bags and boxes.
        It's time for all of us to do something to save the earth.
The reason for global warming
(1) __________ __________ carbon
     dioxide in the air
How to (2) _______________
_________________________
1. Wear used clothes.
2. Use energy-saving light bulbs and
(3) _____________ ___________ turn
     off the lights when you leave a room
3. Ride the bus.
4. Use (4)__________________ instead
    of plastic bags when shopping.
5. Try to use the air conditioner less.

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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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阅读短文,选择正确答案。
    Did you see snow in your hometown last winter? Did you feel it was warmer than before? "There have been
21 warm winters in China since 1986," said scientists. They also said that in the past 100 years, as the global
(全球的) temperatures went up by 0.74 °C, the temperature in North China has climbed 1.4 °C in only 50
years.
    China needs to take quick action to cut carbon dioxide (二氧化碳) emission (排放), because it's the main
reason for global warming. The good news is that China has seen the importance of going green. China set the
goal of cutting energy use by 20 and pollution emission by 10 in the 11th Five-Year Plan.
    Can you slow global warming? Sure! You and your family can take steps to cut the amount of carbon
dioxide that is sent out into the air.
    Here are some pieces of advice to help you save the earth.
    Wear used clothes. Wearing your brother's, sister's or dad's old T-shirt means you save the energy.
    Change your light bulbs (灯泡). Use energy-saving light bulbs. And don't forget to turn off the lights when
you leave a room and turn off your television and computer when they are not in use!
    Ride the bus. Taking a bus saves a lot of oil every year.
    Say no to plastic bags. The next time your parents go to the market, ask them to use baskets
    Open a window. Don't use the air conditioner (空调), and let some fresh air in. When you have to use the
conditioner, set the temperature higher in the summer and lower in the winter to save energy.
    Make small changes in your daily life. Don't use paper cups, bags and boxes. It's time for all of us to do
something to save the earth.
1. The main reason for global warming is             .
[     ]
A. the oil
B. carbon dioxide
C. paper cups, bags and boxes
D. televisions and computers
2. The word "energy" in the second paragraph means "_______"
[     ]
A. 活力
B. 干劲
C. 精力
D. 能源
3. How many pieces of advice are there in this passage?
[     ]
A. Three.
B. Four
C. Five.
D Six
4. Which of the following is true?
[     ]
A. It's a pity to wear your dad's old T-shirts.
B. Using air conditioners may be a waste of energy.
C. Taking a bus wastes a lot of oil every year.
D. Using paper bags saves energy a lot.
5. The passage is mainly about the ways to             .
[     ]
A. slow down global warming
B. make energy
C. change our daily life
D. change the world weather

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