精选优质文档-倾情为你奉上一、 必背短语1.由.制成的(见原料)be made of 2.由.制成的(不见原料).be made from 3.以.闻名be known for 4.被用于.be used for 5.不论;无论 no matter 6.用.覆盖be covered with 7.据我所知as far as I know 8.用手by hand 9.对有益be good for 10.擅长be good at 11.制造高科技产品make high-technology products 12.地球表面 the earths surface 13.许多不同种类的many different kinds of 14.放风筝fly a kite 15.例如such as 16.根据、按照according to 17.请求帮助ask for help 18.的象征 a