UNIT 2 单元整合提升 知识巩固 素养提升(教用Word)-【优学精讲】2025-2026学年高中英语选择性必修第四册（人教版）

该高中英语单元复习讲义通过分类梳理核心单词、拓展词汇、重点短语及经典句式构建知识体系，以列表呈现单词词性与释义，用对比表格归纳词汇拓展关系，搭配句型公式与教材原句示例，清晰展现语言知识的内在逻辑与重难点分布。 讲义亮点在于分层练习设计，如单词拼写巩固基础词汇，“介词+关系代词”定语从句完成句子提升语法应用，结合阅读材料中的情感与环境描写素材培养思维品质。不同题型满足分层需求，助力学生提升语言能力，为教师实施精准教学提供系统支持。

一、核心单词写对 1.　iconic　 adj.符号的；图标的 2.　equator　 n.赤道 3.　premier　 adj.最著名的；第一的；首要的 n.总理；首相 4.　herb　 n.药草；香草；草本 5.　hollow　 adj.中空的；空心的 6.　straightforward　 adj.坦率的；简单的 7.　slogan　 n.标语；口号 8.　minister　 n.部长；大臣；外交使节 9.　frog　 n.蛙；青蛙 10.　entitle　 vt.给……命名（或题名）；使享有权利 11.　domain　 n.领域；领土；范围 12.　liberty　 n.自由 13.　monument　 n.纪念碑（或馆、堂、像等）；历史遗迹 14.　phase　 n.阶段；时期 15.　trunk　 n.树干 16.　session　 n.一场；一段时间；会议 17.　nest　 n.巢穴；鸟窝；秘密窝点 Ⅰ.单词拼写 1.He gathered all his strength and made a dash for the finish line like an 　arrow　 （箭）. 2.Learning that he will drop out of school for lack of money，I’m determined to 　sponsor　 （赞助） his education. 3.It was so much fun when we together enjoyed the 　frequent　 （频繁的） grand parades. 4.If you face a challenge， see it as a 　temporary　 （暂时的） or even optimistic thing， which allows you to learn and grow. 5.He was put into 　prison　 （监狱） because he blew up some government buildings in South Africa. 6.The exhibition was 　licensed　 （批准） by the Society of Culture. 7.We based our analysis on a random 　sample　 （样本） of more than 200 males. 8.He took a deep breath and 　dived　 （潜入） into the water. 二、拓展词汇用活 1.　foundation　 n.创建；基础；地基→found vt.创立，建立；创办 2.　political　 adj.政治的→politics n.政治，政治学 3.　located　 adj.位于→location n.位置→locate vt.把……设置在；把……建造在 4.　bakery　 n.面包（糕饼）店；面包厂→bake vt.烤，烘焙 5.　freedom　 n.自由；不受……影响的状态→free adj.免费的；自由的，不受约束的 vt.使自由，解放；释放 6.　licensed　 adj.得到正式许可的→license vt.批准；许可n.许可证；执照 7.　frequency　 n.发生率；重复率；（声波或电磁波振动的）频率→frequent adj.频繁的；经常发生的 Ⅱ.用所给词的适当形式填空 1.Traffic accidents in this area are taking place with increasing 　frequency　 （frequent）. 2.She was in a 　violent　 （violence） temper and began throwing things about. 3.She is old enough to have the 　freedom　 （free） to do what she likes. 4.They studied the geographical 　distribution　 （distribute） of the disease. 5.The first thing he looked at was his office’s 　location　 （locate）. 6.China is playing an important role on the international 　political　 （politics） stage. 7.Respect and friendship provide a solid 　foundation　 （found） for marriage. 三、重点短语用准 1.　a flock of　一群（羊或鸟） 2.　a handful of　少数人（或物）；一把（的量） 3.　be referred to as ...　被称为是…… 4.　can’t wait to do sth　迫不及待做某事 5.　make a joint effort to do sth　共同努力做某事 6.　say goodbye to　向……告别 7.　date back to　 追溯到 8.　feel at home　感到轻松自在 9.　pick up　捡起；（无意中） 学会；接收；（开车）接某人 10.　come across　偶然遇到 11.　be native to　源于……的；原产于 12.　in contact with　和……联系 Ⅲ.选用上面短语并用其适当形式填空 1.I was searching for some information online when I 　came across　 a social networking site. 2.Then he opened one of his bags and gave me 　a handful of　 freshly picked cherries. 3.I am wondering whether you can 　pick　 him 　up　 at the airport at your convenience. 4.It’s really hard for me to 　say goodbye to　 you，and I’m quite grateful to you for your help with my English learning. 5.His friendly smile made the new students 　feel at home　 in the classroom. 四、经典句式写美 1.句型公式：“介词＋关系代词”引导的非限制性定语从句 教材原句：Most of their musical instruments are really just sticks found on the ground， among which there is an amazing instrument called the didgeridoo. 2.句型公式：it作形式主语，that引导的主语从句作真正的主语 教材原句：It is said that now nearly half of all Australian citizens were either born overseas or have parents who were born overseas. 3.句型公式：while引导让步状语从句 教材原句：While it may lay eggs in a nest like a bird， it’s really a primitive mammal， with a unique biology. Ⅳ.完成句子 1.A tour of our campus is scheduled， 　during which you can admire the beautiful scenery and get to know the history of our school.（欢迎辞） 我们安排了校园参观活动，在此期间你可以欣赏美景，了解我们学校的历史。 2.　It’s said that wearing red during the Chinese New Year can bring good luck. 据说在中国新年期间穿红色可以带来好运。 3.　While the students came from different countries　， they got along quite well in the summer camp. 虽然学生们来自不同的国家，但是他们在夏令营相处得很好。 　　The grass swung gently above a crack in the limestone （石灰岩） and Ludvik Husu realised he had found what he was searching for： a new cave in Slovenia’s dramatic Karst （喀斯特） region. 　　The cave enthusiast， with more than 50 years of experience， told AFP that “the conditions were perfect ...all the signs pointed to something beneath” as he felt the air current push up from below. 　　The 63-year-old had come across a new， 60-meter-deep limestone cave， a discovery that made the headlines this summer in a country that prides itself on its 14，000 underground caves. 　　The tiny Alpine nation is unusually rich in caves，which are a major tourist attraction.Perhaps the best known is the Postojna cave system，the longest in Europe，discovered by another amateur enthusiast two centuries ago.It extends for 24 kilometers and has offered up valuable finds for biologists. 　　Stanislav Glazar，a Postojna cave guide，told AFP that more than 150 species have been discovered in the system. 　　Glazar said Postojna is one of the richest caves in the world “in limestone formations”.The cave，located about 50 kilometers south of the capital Ljubljana， was also home to the world’s first cave tourist train， which began transporting visitors in 1872. 　　Elsewhere in the Karst region，the cave systems are of historical， cultural and even extraterrestrial interest.For instance，the UNESCO-listed Skocjan system was where the European Space Agency sent some astronauts to prepare for life in space. 　　“Astronauts know that the Karst world is exceptional， in a similar way to the environment in space： you don’t know what to expect at your next step，” said Skocjan Caves director Tomaz Zorman. 　　But for Husu， it’s the exploration that proves most rewarding.Once he knows there is something beneath， he digs around the crack to widen it and alerts fellow cavers to help gain access.He then uses ropes and a lamp to go down to what are vertical entrances in most caves.But doesn’t he feel scared to enter such unexplored depths？ 　　“You enter a cave out of curiosity — there is no fear！ Those who feel fear should stay home，” he said. 【写作素材】 1.情感描写 ①But doesn’t he feel scared to enter such unexplored depths？ ②“You enter a cave out of curiosity — there is no fear！ Those who feel fear should stay home，” he said. 2.环境描写 The grass swung gently above a crack in the limestone （石灰岩） and Ludvik Husu realised he had found what he was searching for： a new cave in Slovenia’s dramatic Karst （喀斯特） region. 3.定语从句 The cave， located about 50 kilometers south of the capital Ljubljana， was also home to the world’s first cave tourist train，which began transporting visitors in 1872. 4.强调句 But for Husu，it’s the exploration that proves most rewarding. 1 / 4 学科网（北京）股份有限公司 $