Unit 3 Earth Protection-Reading Further-2025-2026学年高中英语词汇变形及词缀精讲选择性必修第四册（重庆大学版）

高中重庆大学版选择性必修第四册 Unit3词汇变形及词缀精讲 【Unit3】Earth Protection-Reading Further 词汇变形及词缀精讲 全部单元单词 alert/a'l3t/adj.w.m.警觉的：警biological/,baIa'lDdk/ad.生deforested/di:'fpristid/adj.被砍 惕的；提醒：警报 物的；生物学的 伐森林的 extinct/k'stkt/adj.灭绝的；绝biologist/ba'Dlad3Ist/n.生物学desertification/d,z3trfr'keIm/n. 种的：消亡的 家 荒漠化；沙漠化 blanket/'blaenkIt/n./v./adj.;deforestation di:forI'ster n/n. 毛毯：覆盖；总括的 毁林；滥伐森林 词汇变形及词缀精讲 1.biological/,baI3'lDd3kl/adj.生物的：生物学的 词汇变形 名词形式：biology(生物学) 构词解析 前缀bi0-:表”生命：生物”；后缀logy:表”学科”；-ical:构成形容词，表”与…相关的”。 同类词 geological(地质的)←-geology(地质学) 例句 We are doing a biological experiment in the lab this week. 2.biologist/bar'Dlad3Ist/n.生物学家 词汇变形 名词形式（学科）：biology(生物学) 构词解析 前缀bio-:表”生命：生物”；后缀-logist:表…学家”（对应学科后缀-l0gy)。 同类词 psychologist(心理学家)←psychology(心理学) 例句 The biologist is studying the behavior of endangered animals. 3.deforestation/,di:,fDrr'sten/n.毁林；滥伐森林 高中重庆大学版选择性必修第四册 Unit 3 词汇变形及词缀精讲 词汇变形 动词形式：deforest(砍伐森林) 构词解析 前缀de-:表”去除；相反”；词根forest(森林)：后缀-tion:构成名词，表”动作或过程”。 例句 Deforestation has led to the loss of many animal habitats. 4.deforested/di:'foristid/adj.被砍伐森林的 词汇变形 动词形式：deforest(砍伐森林)：名词形式：deforestation(毁林) 构词解析 前缀de-:表”去除”；词根forest（森林)：后缀-ed:构成形容词，表”被…的”。 例句 The once green area is now deforested and dry 5.desertification/d,z3tifi'ken/n.荒漠化；沙漠化 词汇变形 动词形式：desertify(使沙漠化)：名词形式（沙漠）：desert(沙漠) 构词解析 词根desert（沙漠)：后缀-ify:构成动词，表”使…化”；-ation:构成名词，表”过程或结果”。 例句 Climate change has accelerated desertification in some regions. 6.extinct/k'st)kt/adj.灭绝的；绝种的 词汇变形 名词形式：extinction(灭绝) 构词解析 前缀ex:表”完全：彻底”；词根stinct(刺：引申为”生存”)：后缀t:构成形容词。 例句 The dinosaur has been extinct for millions of years. 7.blanket/blaenkit/n.毯子；v.覆盖 词汇变形 动词形式：blanket(覆盖，如：Snow blanketed the ground.) 构词解析 无明显前后缀，属于多词性单词（名词/动词/形容词）。 例句 The mountain was blanketed in thick snow after the storm. 2 高中重庆大学版选择性必修第四册 Unit3词汇变形及词缀精讲 综合训练 一、 根据句意及汉语提示完成单词 6.The study of living things is called (生物学) 7.A (生物学家)is conducting research on plant genetics. 8. (has caused many species to lose their homes. 9.The (被砍伐森林的)land is now being turned into farmland. 10.Climate change is one of the main causes of (荒漠化) 二、用所给单词的适当形式填空 6.The (biology)process of photosynthesis is essential for plants. 7.Many animals have become(extinct)due to human activities. 8.The storm (blanket)the town with snow overnight. 9.The (deforest)of the area led to soil erosion 10.Scientists are working to prevent the(extinct)of endangered species. 三、完成句子（每空一词） 5.这位生物学家正在研究森林生态系统。 The is studying the forest ecosystem. 6.滥伐森林加速了某些地区的沙漠化。 has accelerated in some regions. 7.恐龙已经灭绝数百万年了。 Dinosaurs have been for millions of years 8.大雪覆盖了整个山脉。 The mountains were in thick snow. 四、语篇填空 阅读下面短文，在空白处填入一个适当的单词或用括号内单词的正确形式填空，使短文通顺、连 贯。 3 高中重庆大学版选择性必修第四册 Unit3词汇变形及词缀精讲 (biology)have long warned about the dangers of environmental destruction.One major is- sue is (deforest),which involves cutting down trees on a large scale.When forests are (deforest),animals lose their habitats,and this can lead to (extinct)of species.Another problem is (desertify),where fertile land becomes dry and uninhabitable.Last winter,heavy snow (blanket)the area,but even that couldn't hide the damage done by human activity.It is crucial to protect nature to avoid further harm. 参考答案 I.根据句意及汉语提示完成单词 6.biology 7.biologist 8.Deforestation 9.deforested 10.desertification Ⅱ.用所给单词的适当形式填空 6.biological 7.extinct 8.blanketed 9.deforestation 10.extinction I.完成句子 5.biologist 6.Deforestation:desertification 7.extinct 8.blanketed V语篇填空 1.Biologists 2.deforestation 3.deforested 4.extinction 5.desertification 6.blanketed