Unit6 Live green 单元知识总结+随堂练 2026-2027学年外研版九年级英语上册

外研版（新教材）九年级上册 Unit6 Live green 单元知识总结+随堂练 主题：Live green 绿色生活（人与自然，塑料污染、环保行动） 一、核心单词（四会+三会） ✅四会（会读、会写） 1.plastic /ˈplæstɪk/ n. 塑料 2.invent /ɪnˈvent/ v. 发明 → invention n.发明；inventor n.发明者 3.material /məˈtɪəriəl/ n. 材料，物质 4.shape /ʃeɪp/ v. 使成形；n.形状 5.replace /rɪˈpleɪs/ v. 取代，代替 6.environmental /ɪnˌvaɪrənˈmentl/ adj. 环境的 → environment n.环境 7.toothbrush /ˈtuːθbrʌʃ/ n.牙刷（合成词 tooth+brush） 8.glove /ɡlʌv/ n.手套 9.tie /taɪ/ v.系，捆，拴；n.领带 10.stuck /stʌk/ adj.卡住的，动不了的 11.bin /bɪn/ n.垃圾箱，垃圾桶 12.average /ˈævərɪdʒ/ n.平均数；adj.平均的 13.tiny /ˈtaɪni/ adj.极小的，微小的 14.nowhere /ˈnəʊweə(r)/ adv.无处，哪里都不 15.pollute /pəˈluːt/ v.污染 → pollution n.污染 16.silently /ˈsaɪləntli/ adv.默默地；silent adj.安静的 17.break /breɪk/ v.打破；分解（过去式broke，过去分词broken） 18.wise /waɪz/ adj.明智的 → wisely adv.明智地 19.highlight /ˈhaɪlaɪt/ v.突出，强调 20.electronic /ɪˌlekˈtrɒnɪk/ adj.电子的 ✅三会（认读，知词义） 1.long-lasting adj.耐用持久的 2.former /ˈfɔːmə(r)/ adj.从前的，以前的 3.wing /wɪŋ/ n.翅膀 4.gram /ɡræm/ n.克 5.emission /ɪˈmɪʃn/ n.排放物 6.industrial /ɪnˈdʌstriəl/ adj.工业的 7.recycle /ˌriːˈsaɪkl/ v.回收利用 8.upcycle /ˈʌpsaɪkl/ v.升级改造（废物再利用） 二、重点短语 1.be considered (as)… 被看作/被认为是…… 2.make life better 改善生活 3.you name it 凡是你说得上的；应有尽有 4.by mistake 错误地，无意地 5.on average 平均来看 6.mistake … for … 把……错当成…… 7.break down 分解；（机器）出故障 8.a danger to… 对……是一种威胁 9.fill our lives 充斥我们的生活 10.dark side 负面，阴暗面 11.free from 不含……；不受……困扰 12.deal with 处理，应对 13.take action 采取行动 14.go plastic-free 践行无塑料生活 15.from far and wide 从四面八方 三、单元语法：构词法（核心考点） 1. 合成法：两个单词合并构成新词 tooth(牙)+brush(刷子)=toothbrush 牙刷；sun+flower=sunflower；plastic-free 无塑料的 2. 派生法（前缀+后缀，中考高频） ✅前缀： 1. re- 重新：reuse再利用，recycle回收 1. un-/dis-/im- 否定：unhappy，dislike，impossible ✅后缀： 1. -tion 名词：pollute → pollution；invent → invention 1. -ful / -less 形容词：careful；careless 1. -ly 副词：silent → silently；wise → wisely 3. 转化法：词形不变，词性改变 water n.水 → v.浇水；waste n.垃圾 → v.浪费 拓展：本单元同时复习被动语态（一般现在、一般过去被动） 结构：be + 过去分词；be动词随时态变化 例：Plastic was invented many years ago. 塑料很多年前被发明。 四、单元高频考点&易错点 1.consider：consider sth (as) sth 把某物看作某物；consider doing sth 考虑做某事（❌consider to do） 2.replace A with B：用B替代A 3.by mistake 无意地；mistake A for B 把A错认成B，两个短语不要混淆 4.break down 多义：（物质）分解；（车辆机器）坏掉；（谈判）失败 5.nowhere 否定副词，放句首句子倒装 6.It takes + 时间 + to do sth 做某事花费多长时间 随堂练 一、单词汉译英. 1.塑料 n.__________ 2.发明 v.__________ 3.材料 n.__________ 4.使成形 v.__________ 5.取代 v.__________ 6.环境的 adj.__________ 7.牙刷 n.__________ 8.手套 n.__________ 9.系，捆 v.__________ 10.卡住的 adj.__________ 11.垃圾桶 n.__________ 12.平均 n.__________ 13.极小的 adj.__________ 14.无处 adv.__________ 15.污染 v.__________ 16.默默地 adv.__________ 17.明智的 adj.__________ 18.突出，强调 v.__________ 19.电子的 adj.__________ 20.回收利用 v.__________ 二、词性转换. 1.invent (名词，发明物) __________ 2.pollute (名词) __________ 3.environment (形容词) __________ 4.silent (副词) __________ 5.wise (副词) __________ 6.break (过去分词) __________ 7.consider (现在分词) __________ 8.use (再利用 v.) __________ 9.industry (形容词) __________ 10.forget (形容词，健忘的) __________ 三、短语互译. 1.be considered as _______________ 2.by mistake _______________ 3.on average _______________ 4.mistake … for … _______________ 5.break down _______________ 6.a danger to _______________ 7.you name it _______________ 8.dark side _______________ 9.take action _______________ 10.go plastic-free _______________ 11.改善生活 _______________ 12.充斥我们的生活 _______________ 13.处理，应对 _______________ 14.从四面八方 _______________ 15.不受……困扰；不含 _______________ 四、词形填空（用所给词适当形式填空） 1.Plastic __________ (invent) in the 1870s. 2.We should use things __________ (wise) in daily life. 3.__________ (pollute) is a serious problem for the world. 4.He considered __________ (reuse) plastic bags. 5.The plastic takes hundreds of years __________ (break) down. 6.She stood there __________ (silent) without any words. 7.This kind of material is __________ (environment) friendly. 8.Many sea animals __________ (kill) by plastic waste every year. 9.The __________ (invent) of plastic changed people’s life. 10.Nowhere __________ (be) free from plastic pollution. 五、首字母填空（一空一词） 1.Plastic was c__________ as an amazing material long ago. 2.Don’t m__________ salt for sugar. 3.O__________ a person eats 5 grams of plastic every week. 4.Plastic takes a long time to b__________ down. 5.The factory causes p__________ in the river nearby. 6.We should take a__________ to protect our earth. 7.The bird’s wing got t__________ in the plastic rope. 8.The box is s__________. We can’t move it. 9.We need to use our money w__________. 10.T__________ are used to keep waste in our community. 六、单项选择。 1.Plastic was invented ____ the 1870s. A. in B. on C. at D. for 2.We consider ____ cloth bags instead of plastic ones. A. use B. using C. to use D. used 3.The machine ____ down yesterday. A. break B. breaks C. broke D. broken 4.The old man took my umbrella ____ mistake. A. for B. by C. with D. in 5.This kind of material ____ be recycled easily. A. can B. must C. should D. need 6.The river ____ polluted by the factory last year. A. is B. was C. are D. were 7.He is a ____ man and always makes good decisions. A. wise B. wisely C. wisdom D. wiser 8.____ average, students spend two hours on homework every day. A. In B. On C. At D. For 9.We should stop ____ plastic bags to protect the environment. A. use B. to use C. using D. used 10. —What can we do to live green? —We can reuse and recycle things ____ save energy. A. help B. to help C. helping D. helped 七、汉译英（一空一词） 1.塑料被看作一种神奇材料。 Plastic ____ ____ ____ an amazing material. 2. 平均来看，我们每周摄入五克塑料。 ____ ____, we eat five grams of plastic every week. 3. 一些动物会把塑料袋错当成食物。 Some animals ____ plastic bags ____ food. 4. 塑料要花数百年才能分解。 It takes hundreds of years for plastic ____ ____ ____. 5. 我们必须采取行动保护环境。 We must ____ ____ to protect the environment. 参考答案 一、单词汉译英 1.plastic 2.invent 3.material 4.shape 5.replace 6.environmental 7.toothbrush 8.glove 9.tie 10.stuck 11.bin 12.average 13.tiny 14.nowhere 15.pollute 16.silently 17.wise 18.highlight 19.electronic 20.recycle 二、词性转换 1.invention 2.pollution 3.environmental 4.silently 5.wisely 6.broken 7.considering 8.reuse 9.industrial 10.forgetful 三、短语互译 1.被看作 2.无意地，错误地 3.平均来看 4.把……错当成…… 5.分解；坏掉 6.对……的威胁 7.凡是你说得出的 8.阴暗面，负面影响 9.采取行动 10.践行无塑料生活 11.make life better 12.fill our lives 13.deal with 14.from far and wide 15.free from 四、词形填空 1.was invented 2.wisely 3.Pollution 4.reusing 5.to break 6.silently 7.environmentally 8.are killed 9.invention 10.is 五、首字母填空 1.considered 2.mistake 3.On 4.break 5.pollution 6.action 7.tied 8.stuck 9.wisely 10.Bins 六、单项选择 1.A 2.B 3.C 4.B 5.A 6.B 7.A 8.B 9.C 10.B 七、汉译英 1.was considered as 2.On average 3.mistake; for 4.to break down 5.take action 学科网（北京）股份有限公司 $