英语周报八年极新目标第57答案

8.B【解析】基态原子的价电子排布式为323p的元素是S,A项错误;基态S原子的核外电子排布式为1s2s2p53s23p,B项正确;硫和氢气化合生成的硫化氢在常温下为气体,且常温下不能化合,C项错误;基态S原子的电子排布图为8223x(1,项错误。

第一节短文改错(共10小题;每小题1分,满分10分)My son, Mark, volunteers to help Cherie, a young runner, at a local Special Olymp csSincevolunteeredAlthough/Though/WhileCherie was disabled, she was happy and enthusiastic. Mark encouraged her, kept her calm, and let her to, know whenit was time to line up for het race. When the starting signal sounded, she took off as a flash of lightning, leaving herlikefellow racer behind. As he was near the finish line, she stopped, turned around, and waved to the other runners,shencouraged them to hurry. She waited for them but they could all cross A finish line together. It was realally a veryenouragingspecially finishspecial

以上就是英语周报八年极新目标第57答案，更多英语周报答案请关注本网站。