Unit 2 Roads to education一-2025-2026学年高中英语词汇变形及词缀精讲必修第二册（沪教版）

高中必修第二册沪教版 词汇变形及词缀精讲 沪教版 【Unit2】Roads to education(-) 词汇变形及词缀精讲 全部单元单词 episode/'episaud/n.(电视/广其实：实际上 eager'ig(t)/adj.热切的：渴望 播剧的)一集 positive /'pDzativ/adj. 积极的：的 series./'sIari:zhn.(广播电视)系建设性的 frequently /'fri:kwantli/adv. 列节目 effect/i'fkth.效应；影响：结繁地：经常 previous/'pri:vias/adj.先前的：果 update/Ap'dert/w.更新：使更及 以往的 performance/pa'fo:mans/n.表时 brief /bri:f/adj.简洁的：简短的；现；表演：演出 otherwise/'A3waIz/adv.否则； 短时间的 propose/pr3'pauz/v.提议；建议不然 quote /kwaut/h.引用；引述v.lecture/'lekt(r)n.（大学)讲motivate/'mautrveit/w.激励：激 引用 座；讲课 发 clap /klaep/w.拍手：击掌；鼓掌document/'dpkjumant/n.文件：mood/mu:dh.氛围：心境 (表赞许) 公文；文献 indeed/m'di:d/adv.(强调肯定)：resource/rI's:s/n.资料 词汇变形及词缀精讲 l.previous/'pri:vias/adj.先前的；以往的 名词形式：previousness(先前，较少用) 副词形式：previously 构词解析：前缀pre-:表“在…之前”；后缀-ous:构成形容词。 同类词：prehistory(史前)、predict(预测) 例句：She had met him on a previous occasion 真题链接（沪教版高中必修第二册同步练习）：He mentioned this problem in his (previous) report..(答案：previous)) 2.brief /bri:f/adj.简洁的；简短的 副词形式：briefly 名词形式：brief(摘要，简报) 构词解析：后缀-ly:构成副词；-bief本身可作名词，表“简短的文件”。 1 高中必修第二册沪教版 词汇变形及词缀精讲 例句：Could you give a brief introduction to the project? 真题链接（沪教版高中必修第二册教材例句）：He briefly explained his plan to the team. 3.positive/'pDZatIV/adj.积极的；建设性的 名词形式：positivity(积极性) 副词形式：positively 反义词：negative(消极的) 构词解析：前缀pos-:表“放置”；后缀ive:构成形容词；y构成副词。 同类词：active(积极的)、effective(有效的) 例句：She has a positive attitude towards life. 真题链接（沪教版高中必修第二册同步练习)：We should focus on the (positive)aspects of the situation.（答案：positive) 4.effect'fekt/n.效应：影响：结果 动词形式：affect(影响) 形容词形式：effective(有效的) 构词解析：前缀ef:表“出、外”；后缀-ivC:构成形容词。 固定搭配：have an effect on(对…有影响) 例句：The new policy had a positive effect on the economy. 真题链接（沪教版高中必修第二册同步练习)：The medicine will take_(effect)in half an hour. (答案：effect) 5.performance /p3'fo:mans/n.表现：表演 动词形式：perform（表演；执行) 形容词形式：performer(表演者) 构词解析：前缀per-:表“完全”；后缀-ance:构成名词；-er表“人”。 例句：Her performance in the play was excellent 真题链接（沪教版高中必修第二册教材例句)：He performed a piano solo at the concert. 6.propose /pr3'pauz/v.提议；建议 名词形式：proposal（提议) 形容词形式：proposed(被提议的) 构词解析：前缀pro-:表“向前”；后缀-al:构成名词；-ed:构成形容词。 例句：She proposed a new method to solve the problem. 真题链接（沪教版高中必修第二册同步练习）：They discussed the__(propose)changes to the plan. (答案：proposed) 7.lecture/'lektTa(r)/h.讲座；讲课 动词形式：lecture(讲课：训斥) 名词形式：lecturer(讲师) 构词解析：后缀-er:表“人”；-lecture可作动词，表“进行讲座”。 例句：The professor will give a lecture on environmental protection. 高中必修第二册沪教版 词汇变形及词缀精讲 真题链接（沪教版高中必修第二册教材例句）：She lectures on modern art at the university. 8.document/'dokjumant/h.文件；文献 动词形式：document(记录：记载) 形容词形式：documentary（纪录片的：文件的) 构词解析：前缀doc-:表“教导”；后缀-ay:构成形容词。 例句：Please sign the document before leaving. 真题链接（沪教版高中必修第二册同步练习）：This film (document)the history of the ancient city.(答案：documents) 9.resource /rI's:sn.资料：资源 形容词形式：resourceful(资源丰富的：机智的) 构词解析：后缀-fl:表“充满…的”。 例句：We need to make full use of available resources.. 真题链接（沪教版高中必修第二册同步练习）：She is a_(resource)student who always finds solutions.(答案：resourceful) 10.frequent/'fri:kwant/adj.频繁的 副词形式：frequently 名词形式：frequency(频率) 构词解析：前缀fre-:表“多”；后缀-ent:构成形容词；-y构成副词：-cy构成名词。 例句：She visits her grandparents frequently 真题链接（沪教版高中必修第二册同步练习）：The (frequent)of earthquakes in this area is high (答案：frequency) ll.update/p'det/v.更新；使更及时 名词形式：update(更新：最新消息) 构词解析：前缀up-:表“向上；更新”；词根date:表“日期”。 例句：Remember to update your contact information. 真题链接（沪教版高中必修第二册教材例句）：The app needs to be updated regularly. l2.motivate/'mautrveit/.w.激励：激发 名词形式：motivation(动机) 形容词形式：motivated(有动力的) 构词解析：前缀mot-:表“移动”；后缀-ion:构成名词；-ed:构成形容词。 例句：Teachers should motivate students to learn independently 真题链接（沪教版高中必修第二册同步练习）：His__(motivate)for studying hard is to get into a good university.(答案：motivation) 3 高中必修第二册沪教版 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 1.The new policy will have a positive()on the local economy. 2.She gave a_(简洁的)summary of the meeting. 3.We need to collect more_()for the research project. 4.His excellent()in the exam surprised everyone. 5.The professor will deliver a()on artificial intelligence next week. 6.Please sign the_(文件)before submitting it.. 二、用所给单词的适当形式填空 1.He(previous)worked as a teacher before becoming a writer. 2.The team(brief)discussed the plan before making a decision. 3.Her(positive)towards challenges inspired the whole group. 4.The medicine has a strong(effect)on relieving pain 5.They(propose)a new solution to the environmental problem 6.The documentary(document)the daily life of pandas in the wild. 7.She is a(resource)person who can always find ways to solve problems. 8.The(frequent)of traffic accidents in this area has decreased recently. 9.The company needs to(update)its software regularly. 10.Teachers should(motivate)students to think creatively. 三、完成句子（每空一词） 1.这项新规定对学生的学习习惯有影响。 The new rule Lon students'study habits. 2.他在会议上简要介绍了他的计划。 He his plan at the meeting. 4 高中必修第二册沪教版 词汇变形及词缀精讲 3.她积极的态度帮助她克服了许多困难。 Her_helped her overcome many difficulties. 4.我们应该充分利用现有的资源。 We should make full use of the 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。 In a_(previous)study,researchers found that positive emotions can improve work(perform).A team of scientists decided to(document)this phenomenon further.They gave a(brief)introduc- tion of the study to the participants and asked them to complete several tasks.During the process, some participants were(motivate)by encouraging words,while others received no special treat- ment.The results showed that the motivated group had a better(effect)on task completion and higher(frequency)of positive feedback.Dr.Smith,the lead researcher,gave a-(lecture)on the findings,emphasizing the importance of(positivity)in the workplace.She also(propose)that companies should provide more resources to support employees'mental well-being. 参考答案 I根据句意及汉语提示完成单词 1.effect 2.brief 3.resources 4.performance 5.lecture 6.document Ⅱ.用所给单词的适当形式填空 1.previously 2.briefly 3.positivity 4.effect 5.proposed 6.documents 7.resourceful 8.frequency 9.update 10.motivate I.完成句子 1.has an effect 2.briefly explained 3.positive attitude 4.available resources V.语篇填空 1.previous 2.performance 3.document 4.brief 5.motivated 6.effect 7.frequency 8.lecture 9.positivity 10.proposed