选词填空题干：

Choose one appropriate word from the following word bank to fill in the blanks numbered from 1 to 15 in the passage below. Change the word form where necessary. Remember the bank contains some extra words that may not be used in filling any of the blanks. Write the words in their correct forms with the corresponding numbers on Answer Sheet(2).

可选单词：

1.correct 2.switch 3.burn 4.continuous 5.amount 6.difference 7.recycle 8.choose 9.economical 10.replace 11.advantage 12.decline 13.way 14.improvement 15.harmful 16.efficient 17.untrue 18.method 19.passion 20.reduce 

正文：People should know that many little things can be done in an attempt to conserve energy in the home. Slight changes in day-to-day tasks can make a big【1】______in conserving energy around the home. The most common method for conserving energy is to【2】______appliances off when not in use. Many appliances have lights that【3】______burn power if left plugged in with power to the socket. Mobile phone chargers are by many people believed to use no power when a phone isn’t attached, yet this is【4】______. Even if your phone is not being charged the charger is still【5】______electricity whilst plugged in . When conserving energy, we can also look to the【6】______we heat our homes. Many people can conserve, energy by turning down their thermostat by just 1 degree. Another energy conservation process that starts at home is to【7】______paper, bottles and cans. With fewer waste, we help【8】______the burden on landfill sites and incinerators(垃圾焚化炉)which not only use a lot of energy but are also very【W9】______to the environment. Home【10】______can also help to conserve energy. Are your windows single glazed If they are, consider more modern double or ever tripe glazed windows. By【11】______your windows, you can save significant levels of energy. When you think about changing your car, why not【12】______a hybrid car This can help to save energy as a hybrid engine will greatly reduce the【13】______of fuel your car required over a period of time. If you own a 4 x 4 vehicle, why not consider trading it in for a more【14】______vehicle. The only reason you should need a 4 x4 vehicle is if you live in a rough terrain or snowy areas. When you need to buy your next car, be sure to check the miles per gallon to see how【15】______your car will be, this not only helps the environment but is saves you money on fuel too.

疑问：文章挺简单，但是有几个空和网上答案不太一致。先说最后两个空14和15，我选的14是economical，15是efficient。但是网上答案它俩正好倒过来。

另外第一个空可以是improvement吗，网上答案是make a big difference.

第5个空填什么，可以填burning吗？