题目内容：

Scientists said that in the past 100 years, as the global temperatures went up by 0.74℃, the temperature in North China had 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. Can you slow down global warming? Sure! Here are some advice.

Buy fewer clothes that are unnecessary. Wearing your brother's, sister's or dad's old T-shirts means you save the energy.

Change your light bulbs . 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!

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

Say no to plastic bags. The next time you go to the market, 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 one-off cups, bags or boxes. It's time for all of us to do something to save the earth.

The reason for global warming	Too much carbon dioxide in the air
How to  1.   the earth	1. Wear 2.   clothes. 2. Use energy-saving light bulbs and 3.   to turn off the lights when you leave a room . 3. Take the bus. 4. Use  4.  instead of plastic bags when shopping. 5. Try to use the air conditioner   5. .