Unit 9 SavethePlane-2025-2026学年九年级全一册英语词汇变形及词缀精讲（北师大版）

9年级全一册北师大版 【寒假专版】 词汇变形及词缀精讲 寒假专版 【Unit9】Save the Planet 词汇变形及词缀精讲 全部单元单词 reuse/,i:'ju:zV.重新使用：再recycling/,ri:'sarklu/n.回收利worth /w3:θ/adj.有…价值： 利用 用：再循环 值得（做） take action/teik'eknl短语采reduce/r'dju:s/v.减少；降低：proudly/'praudli/adv.自豪地： 取行动 缩小 骄傲地 global warming /'glaubl greatly/gri/adv.非常；大大pr'event /pri'vent/v.预防：阻止： w3m)/短语全球变暖 地：极大地 防止 organize/'3:g3 narz/v.组织：筹 expand/k'spaend/v.扩大；扩 备：安排 张：扩展 词汇变形及词缀精讲 1.reuse/i:ju:z/V.重新使用：再利用 名词形式：reuse(不可数，意为”再利用) 构词解析：前缀re-:表示”再次、重复”，use为动词”使用”，re+use构成”重新使用”。 同类词：recycle(回收利用)、rebuild(重建) 例句：We should reuse plastic bags to reduce waste. 2.organize/'o:ganaIz/v.组织：筹备：安排 名词形式：organization(组织；机构)：organizer(组织者) 形容词形式：organized(有条理的) 构词解析：后缀-iz:构成动词，意为”使…化：组织”，名词形式加后缀-ation,形容词形式加 -ed。 例句：She will organize a party for her birthday 真题链接（北师大版九年级同步练习）：Our school (organize)a sports meeting last week. 案：organized) 3.recycling/,ri:'sakl/n.回收利用：再循环 动词形式：recycle/ri:'sak/v.回收利用 构词解析：前缀re-:”再次”，cycle意为”循环'，Ie+cycle构成”再循环'，动名词形式加-ing作名 词。 例句：Recycling paper can save many trees. 9年级全一册北师大版 【寒假专版】 词汇变形及词缀精讲 4.reduce/rI'dju:sv.减少；降低；缩小 名词形式：reduction'dakn/n.减少；降低 构词解析：前缀re-:”回；向后”，dlce来自拉丁语”引导”，rece意为”引回、减少”，名词形式 加后缀-tion。 例句：We need to reduce the amount of water we use. 5.expand/k'spaend/v.扩大：扩张；扩展 名词形式：expansion/k'spaenJn/n.扩大；扩张 构词解析：前缀ex-:”向外”，pand意为”伸展”，ex+pand构成？向外伸展→扩大’，名词形式加后 缀-sion。 例句：The company plans to expand its business to other cities.. 6.worth /w3:θ/adj.有…价值：值得（做） 近义词（短语）：worthy/w3:i/adj.值得的(be worthy of sth./to do sth.) 构词解析：无明显前后缀，但需注意固定搭配：be worth doing sth.(值得做某事)，主动形式表被动 意义。 例句：The book is worth reading twice. 真题链接（北师大版九年级教材例句)：This movie is worth watching. 7.proudly/'praodli/adv.自豪地；骄傲地 形容词形式：proud /pravd/adj.自豪的；骄傲的 名词形式：pride /praid/n.自豪；骄傲 构词解析：后缀-ly:构成副词，proud为形容词，名词形式去掉后缀-d变为pride,固定搭配take pride in=be proud of(为…自豪)。 例句：He proudly showed us his prize. 真题链接（北师大版九年级同步练习）：She was_(pride)of her son's success.(答案：proud) 8.prevent /pri'vent/v.预防；阻止；防止 名词形式：prevention/pr1'venn/n.预防：阻止 构词解析：前缀pre-:”预先、提前”，vent意为”来”，pre+vent构成”预先来到→阻止”，名词形 式加后缀tion。 固定搭配：prevent sb.(from)doing sth.阻止某人做某事 例句：We should wash hands often to prevent illness. 真题链接（北师大版九年级同步练习）：The heavy rain prevented us from_(go)out.(答案： going） 9.greatly/'grentli/adv.非常；大大地；极大地 形容词形式：great/grert/.adj.伟大的；极大的 构词解析：后缀-ly:构成副词，grat为形容词，加-ly后变为副词”极大地”。 例句：This new policy will greatly improve our life, 真题链接(（北师大版九年级教材例句)：Computers have greatly changed the way we work. 2 9年级全一册北师大版 【寒假专版】 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.We should practice the (再利用)of water in our daily life. 2.The (组织)was set up to help children in poor areas. 3. (回收利用)can reduce pollution and save resources. 4.The government has taken actions to make a()in air pollution. 5.The company's(into foreign markets was very successful. 二、用所给单词的适当形式填空 1.My mother is good at (organize)parties and making everyone feel welcome. 2.The new policy will(great)improve the living conditions of the villagers. 3.This book is (worth)reading because it gives us a lot of useful information. 4.We should do our best to (prevent)the spread of the disease 5.She (proud)told us about her daughter's achievements at school. 三、完成句子（每空一词） 1.我们应该回收利用纸张来拯救树木。 We should to save trees. 2.这场雨阻止了我们去野餐。 The rain us for a picnic. 3.这个计划值得仔细考虑。 The plan is carefully. 4.他自豪地展示了他的新发明。 He his new invention 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 9年级全一册北师大版 【寒假专版】 词汇变形及词缀精讲 Environmental protection is important for everyone.We can start by doing small things in daily life For example,we should (reuse)plastic bottles instead of throwing them away.We can also join (organize)that promote recycling. (Recycle)is a good way to reduce waste.It can(great)help protect the environment. Many communities have special bins for different kinds of waste,which makes recycling easier. We should also tryto(reduce)the use of plastic bags.Remember,even small actions can make a big difference.Let's take action to make our planet greener! 参考答案 I根据句意及汉语提示完成单词 1.reuse 2.organization 3.Recycling 4.reduction 5.expansion Ⅱ用所给单词的适当形式填空 1.organizing 2.greatly 3.worth 4.prevent 5.proudly I.完成句子 1.recycle paper 2.prevented;from going 3.worth thinking about 4.proudly showed V.语篇填空 1.reuse 2.organizations 3.Recycling 4.greatly 5.reduce