家庭照明省电措施？
参考答案：
（1）在保证满足有效的照度和亮度下，合理选择电光源和灯具，应尽量选用高效灯具。如11W节能灯相当于60W白炽灯亮度。
（2）床头灯、房厅吊灯如采用白炽灯，应加装调光节电装置。
（3）楼道照明采用声控节电装置。
（4）房内无人时应记住熄灯。
（5）看电视时，只亮所需电灯，既能节省电能又能保护视力。
（6）日光灯应采用细管灯和电子镇流器。其与粗管灯和电感式镇流器相比可节电30%左右。
| 完形填空：阅读下面短文。选出最佳选项。 | |||
 Save the Wild Tiger When people think of tigers, they think: strong and dangerous. But now, the big animal is calling for our help. There were once eight kinds of 1 in the world, but three died out during the 20th century. In the last 70 years, the 2 of Siberian tigers (东北虎) has gone from as many as 300 to 3 22 somewhere. The Siberian tiger has been 4 dying out completely. If the government doesn't make any efforts, it's quite 5 that there will be no more Siberian tigers in China in ten to twenty years. In order to double the number of wild tigers in the 6 ten years, the World Wildlife Fund (世界自然基金会) has started a program recently. It 7 save wild tigers and put an end to tiger hunting and killing. China, together with twelve other 8 , has joined in. Wild animals, such as red deer and wild pigs, are the main 9 of the tigers. The hunting of these animals is the greatest threat (威胁) to tigers. So the most important thing is 10 the animals that tigers eat. To protect the wild tigers, we need to call on more people to stop eating and hunting wild animals. | |||
|