Unit 5 Revealing Nature 单元知识回扣5（课件PPT）-【精讲精练】2026-2027学年高中英语选择性必修第一册（外研版）

该高中英语单元复习课件围绕“Revealing nature”主题，系统梳理核心词汇（如DNA test、declined）、拓展词汇（如evolve→evolution）、重点短语（如adapt to、of all time）及重点句型（so/such...that...等），通过知识框架将词汇、短语、句型串联，帮助学生构建完整的单元知识网络。 其亮点在于采用语境化词汇呈现与结构化句型训练的复习策略，如核心单词结合“DNA test通过唾液样本分析”等例句理解，句型公式配中英文对照强化运用，有效培养学生的语言理解与表达能力及逻辑思维品质。这种设计兼顾基础巩固与能力提升，助力教师精准开展分层复习教学。

单 元 知 识 回 扣 UNIT 5　Revealing nature UNIT 5　Revealing nature 1 sample linked centimeters UNIT 5　Revealing nature 1 seeds declined blame ancestor UNIT 5　Revealing nature 1 myth root worldwide giant UNIT 5　Revealing nature 1 distance evolution suspicious suspicion detection detective UNIT 5　Revealing nature 1 answer the call first choice be a disgrace of all time in question be crowded with come to exist UNIT 5　Revealing nature 1 adapt to a variety of be native to tiny amounts of drive...away UNIT 5　Revealing nature 1 so nervous that he couldn't say a word UNIT 5　Revealing nature 1 was said to have invented UNIT 5　Revealing nature 1 谢谢观看 UNIT 5　Revealing nature 1 Ⅰ.核心单词 1．DNA test，a new technique，which is tested by analyzing saliva ______ (样本)，appears in the foreign medical industry. 2．I doubt whether Mr Bates is directly ______ (联系) with the crime that happened last night. 3．The height of the building is measured in ___________(厘米)，indicating its precise dimensions. 4．They enjoyed fresh watermelon last summer because they had planted watermelon _____ (种子) in the spring. 5．The number of that kind of animals has ________ (下降) by 5% these years. 6．So long as you do what you can，no one will _____ (责备) you even if you might fail in the future. 7．All living flowers ultimately derive from a single ________ (祖先) that lived about 140 million years ago，a study suggests. 8．The story of Pandora's box is a well-known ____ (神话) that teaches us about the dangers of curiosity. 9．A ____ (根) vegetable is what we call vegetables that grow underground. 10．The books written by Moyan have sold more than 20 million copies _________ (遍及全世界). 11．The number of _____ (特大的) pandas is getting smaller because their living areas are becoming farmlands. Ⅱ.拓展单词 1．distant adj.遥远的；远处的→________ n.距离；远处 2．evolve v.进化→__________ n.进化(论) 3．suspect v.猜想，怀疑，觉得→__________ adj.可疑的→_________ n.怀疑，嫌疑 4．detect v.发现，察觉(尤指不易觉察到的事物) →_________ n.发现，察觉，侦察→_________ n.侦探 Ⅲ.重点短语 1．_______________ 响应号召 2．____________ 第一选择 3．_____________ 是耻辱，是丢脸的事 4．___________ 有史以来；一直 5．___________ 考虑之中的，被谈论着的 6．_______________ 被……塞满；挤满 7．_____________ 出现；产生 8．________ 适应 9．____________ 各种各样的 10．____________ 源于……的，原产于…… 11．_______________ 微量的 12．____________ 把……赶走 Ⅳ.重点句型 1．句型公式：so/such...that...“如此……以至于……” 他紧张得一句话都说不出来，站在那里，嘴微微张着，双眼瞪得大大的，一脸惊愕。 He was_______________________________________，standing there with his mouth slightly open and his eyes wide in astonishment. 2．句型公式：sb/sth be said to do...“据说……” 据说亚历山大·格雷厄姆·贝尔在1876年发明了电话。 Alexander Graham Bell _________________________ the telephone in 1876. $