Unit 9 Human Biology Lesson3-2025-2026学年高中英语选择性必修第三册期末词汇复习（北师大版）

期末词汇复习 选修3·北师大版·Unit9:Hum anBiology Lesson3 一、重点单词详解 1:epidemic 一、核心考点 词性：名词(n.) 核心义：n.传染病，流行病 二、构词法（词性转换） 词根：dem（人民)，epi-（在…之中)→”在人群中传播的” 形容词：epidemic(adj.流行的；传染性的) 动词：无直接动词形式，常用搭配spread an epidemic(传播流行病) 三、用法与常见搭配 名词短语：epidemic outbreak(疫情爆发) 形容词用法：epidemic disease(流行病) 动词搭配：prevent an epidemic(预防流行病) 四、重点辨析 epidemic(区域性流行病)vs.pandemic(全球性流行病)：前者范围较小，后者覆盖全 球，如COVID-l9初期为epidemic,后升级为pandemic。 2:variation 核心考点 词性：名词(n.) 核心义：n.变化物，变体；差异，变动 二、构词法（词性转换） 词根：vay(v.改变) 形容词：various/'vearias/(各种各样的)；variable/'veariabl/(可变的) 副词：variously'veariasli/(不同地) 动词：vay/'veeri/(vi.变化：t.改变) 三、 用法与常见搭配 动词搭配：vary from.…to.…（从…到…变化) 名词短语：genetic variation(基因变异)；seasonal variation(季节性变化) 介词搭配：variation in/of sth.(某事物的差异) 3:classify 、 核心考点 词性：动词(t.) 核心义：t.将…分类；把…归入一类 二、构词法（词性转换） 词根：class(n.类别) 名词：classification/,klaesifi'kern/(分类，分级) 形容词：classified/'klaesrfard/(分类的；机密的) 三、用法与常见搭配 固定搭配：classify..as.…（把…归类为…) 被动语态：be classified into(被分为…类别》 例：The books are classified into different genres.（这些书按不同体裁分类。) 4:pose 一、核心考点 词性：动词(t.)、名词(n.) 核心义：t造成，引起（问题、危险等）：n.姿势 、 构词法（一词多义） 动词含义： (I)造成（问题）：pose a threat/risk/danger(构成威胁/风险/危险) (2)摆姿势：pose for a photo(摆姿势拍照) 名词含义：strike a pose(摆姿势) 三、重点辨析 pose vs..cause:两者均有”引起”之意，但pose更强调”潜在威胁，如pose a problem; cause侧重”直接导致结果”，如cause damage。 5:symptom 核心考点 词性：名词(n.) 核心义：n.症状；征兆 二、构词法（词性转换） 形容词：symptomatic/.srmpte'matrk/(有症状的；表明…的) 固定搭配：symptom of sth.(…的症状/征兆) 例：Fever is a common symptom of the flu.(发烧是流感的常见症状。) 拓展：symptomatic of(是…的征兆)，如Her silence is symptomatic of her unhappiness. (她的沉默表明她不开心。) 6:steadily 一、核心考点 词性：副词(adv,) 核心义：adv.稳定地 二、 构词法（词性转换） 词根：steady'stedi//(adj.稳定的；v使稳定) 动词：steady(vt.使平稳，稳住) 名词：steadiness/stedines/(稳定性) 三、用法与常见搭配 修饰动词：increase steadily（稳步增长)；improve steadily(持续改善) 例：The population has grown steadily over the years.(近年来人口稳步增长。) 7:outbreak 核心考点 词性：名词(n.) 核心义：n.(疾病、战争)爆发 二、构词法（合成词） out(向外)+break（爆发)→突然发生 动词搭配：prevent an outbreak(预防爆发)；report an outbreak(报告疫情爆发) 介词搭配：outbreak of sth.(…的爆发)，如outbreak of cholera（霍乱爆发) 8:underline 一、核心考点 词性：动词(t.) 核心义：t强调；在…下画线 二、构词法（合成词） nder（在…下)+line（线)→字面”画线”，引申”强调 三、用法与常见搭配 强调含义：nderline the importance of(强调…的重要性) 例：The report underlines the need for better healthcare..(报告强调了改善医疗的必要性。) 辨析：nderline vs..emphasize:前者更书面化，后者更口语化，两者可互换。 9:systematic 一、核心考点 词性：形容词(adj.) 核心义：adj.系统化的，有条理的 二、构词法（词性转换） 词根：system/'sIstam/(n.系统) 副词：systematically/,sIsta'maetrkli/(系统地) 名词：systematization/,sIstemetar'zeIl(系统化) 三、用法与常见搭配 固定搭配：systematic study/research（系统研究)：systematic approach(有条理的方法) 10:thorough 、 核心考点 词性：形容词(ad山j.) 核心义：adj.彻底的，全面的 二、构词法（词性转换） 副词：horoughly/0Aali/(彻底地，完全地) 近义词：comprehensive(全面的)：exhaustive(详尽的) 三、用法与常见搭配 固定搭配：thorough investigation(彻底调查)；thorough cleaning(大扫除) 例：The police made a thorough search of the house.(警方对房子进行了彻底搜查。) 二、词汇巩固练习 (一)单项选择(10题) 1.The sudden_of flu in the community has forced the local hospital to add more beds. A)outbreak B)variation C)symptom D)classification 2.The new virus_a serious threat to public health,according to the latest report. A)classifies B)poses C)underlines D)varies 3.Students are required to_the key points in the textbook with a red pen. A)pose B)underline C)classify D)thorough 4.The research team has made a_study of genetic variations in the population. A)systematic B)epidemic C)classified D)symptomatic 5.Before the experiment,all samples must be into three groups based on their characteris- tics. A)posed B)varied C)classified D)outbreak 6.The doctor noticed several early_of the disease,including fever and fatigue. A)symptoms B)poses C)variations D)classifications 7.The number of participants in the project has increased_over the past five years. A)thoroughly B)steadily C)systematically D)variously 8.It is important to take measures to prevent the spread of infectious diseases. A)epidemic B)classified C)thorough D)symptomatic 9.The report the need for stronger international cooperation in fighting pandemics. A)emphasizes B)varies C)strikes D)steadies 10.The disease was first considered an_but later declared a pandemic due to its global spread. A)outbreak B)epidemic C)variation D)symptom (二)根据提示补全句子(8题) 1.The_(classify)of these plants is based on their leaf structure. 2.Regular exercise and a balanced diet can(steady)improve physical health 3.The company has developed a(system)approach to solving customer complaints 4.All employees must receive_(thoroughly)training before starting their work. 5.The data shows significant(vary)in temperature between day and night. 6.The government has issued a_(classify)document on emergency response procedures. 7.The scientist spent three years on the(systematic)study of bird migration 8.Her anxiety was_(symptom)of the stress she had been under. (三)首字母填空(10题) 1.The local health department quickly responded to the o_of cholera in the village. 2.Genetic v is essential for the survival and evolution of species 3.All visitors must ptheir ID cards before entering the restricted area. 4.The teacher asked students to c_the books into fiction and non-fiction. 5.S-cleaning of the laboratory is required after each experiment 6.The patient's symptoms were considered s_of a severe infection. 7.The population of the city has grown ssince the new policy was introduced. 8.The research team used a s method to collect and analyze data. 9.The report u the importance of early education for children's development. 10.A t investigation was carried out to find the cause of the accident. (四)答案与解析 1.单项选择答案：AB BA CA B CA B 解析1（第1题）： 考查outbreak的固定用法。outbreak of sth.表示”.…的爆发”，符合句意”社区突然 爆发的流感迫使当地医院增加床位”；variation表示”变化”，symptom表示'症状， classification表示分类”，均不符合语境，故选A。 解析2（第2题）： 考查pose的固定用法。pose a threat表示”构成威胁？”，符合句意”根据最新报告，新病 毒对公共健康构成严重威胁”；classifies表示”分类，underlines表示”强调”，varies表 示”变化”，均不符合语境，故选B。 解析3（第4题）： 考查systematic的固定用法。systematic study表示”系统研究”，符合句意”研究团队对 人群中的基因变异进行了系统研究；epidemic表示流行病”，classified表示”分类的”， symptomatic表示”有症状的”，均不符合语境，故选A。 2.补全句子答案： 1.classification 2.steadily 3.systematic 4.thorough 5.variation 6.classified 7.systematic 8. symptomatic 3.首字母填空答案： 1.outbreak 2.variation 3.pose 4.classify 5.Thorough 6.symptomatic 7.steadily 8.system- atic 9.underlines 10.thorough 英语词汇复习手册·选修3·北师大版·Unit9:Iuman Biology Lesson3