If you look at the word Christmas, you can see the word Christ in it. On Christmas, people celebrate (庆祝) the birthday of Jesus Christ.
Of course (当然) not everyone in America thinks Christ a great man, but Christmas is a holiday for all the people. It’s on December 25. Shops and schools are not open. Almost (几乎) every family has a Christmas tree in the house. People make their Christmas trees very beautiful. They put many colored bulbs on the trees. The bulbs make the trees more beautiful at night. They also put some dolls, balls and small animals on the trees. On Christmas day almost everyone gives gifts to others and also gets gifts from others.

近年来，我国机动车保有量持续增加，在给人们带来方便的同时也带来了不可忽视的问题：机动车排放的污染物中含有能致癌的物质100多种，直接危害人民群众的身体健康。另外，据分析，PM2.5的来源中机动车尾气排放贡献率为22.2%。要改变这种状况，必须（   ）
①增强节约资源和保护环境的意识 
②形成节约资源和保护环境的生活方式和生产方式  
③坚持节约资源和保护环境的基本国策 
④坚定不移地实施可持续发展战略，共同建设美丽中国 

将一些半径相同的小圆按如图的规律摆放，第1个图形有4个小圆，第2个图形有8个小圆，第3个图形有14个小圆，…，依次规律，第8个图形的小圆个数是（   ）

近义词：

容易——____    广——____     计谋——____