20．Did you see snow in your hometown last winter？Did you feel it was warmer than before？
"（1）自1986年以來，中國的氣候（climate）變得越來越暖了，"said scientists．They also said that in the past 100years，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 50years．
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 20and pollution emission by 10in the 11th Five-Year Plan．
Can you slow down global warming？Sure!（2）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 （燈泡）．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 （空調(diào)），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
Besides，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．
21．How many pieces of advice does the passage mention to help us save the earth？Six
22．將（1）翻譯成英文．The climate in China has been warmer and warmer since 1986．
23．將（2）翻譯成中文．你和你的家人可以采取措施來減少排放到空氣中的二氧化碳的數(shù)量．
24．請在文中找出下句的同義句
Remember to turn off the electrical equipment when leaving home or when they are not in use．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．
25．找出能概括本文中心思想的短語：Slow down global warming．
