上几期：美疾控中心确定第2批新冠疫苗接种者、2020年对学生和教师来说都是艰难的一年美国会确认拜登获胜，呼吁特朗普下台、世卫组织冠状病毒专家将于周四访问中国、疫情期间韩国整容手术兴隆原文：Freezing weather can mean frostbite and hypothermia unless a person is prepared.除非准备充分，否则严寒天气意味着冻伤和体温过低。Today we talk about how to stay warm, dry and safe.今天我们谈谈如何保持温暖、干燥和安全。结构分析：Freezing weather是-ing式词组作主语，can mean是谓语，frostbite and hypothermia是宾语，unless引导状语从句，a person是主语，is prepared是谓语。Today是状语，we是主语，talk about是谓语，how to stay warm, dry and safe是宾语。英语外刊，精读练习：1.句子结构、时态等分析；2.将英文译成中文。Frostbite is damage that happens when skin is exposed to extreme cold for too long.
