Unit 6 Live green 单元复习 课件 2026-2027学年初中英语外研版九年级上册

Unit review Live green Unit 6 外研版英语九年级上册 Look and say: Say the words according to Chinese quickly. Lead in consider material average shape cheap glove pollute wing tie loudly village 乡村，村庄 响亮地，大声地 系，扎，拴，捆 翅膀，翼 平均数 污染 使成形 便宜的，廉价的 手套 材料 认为；考虑 depth suggest peace business 公司，企业， 商业机构 和平，平静，安宁 建议，提议 深，深度 Look and say: Say the expressions according to Chinese quickly. Lead in get stuck in free from break down 不含……的， 没有……的 陷入；被困在 分解 by mistake connect...with... 连接……与…… 错误地，无意地 mistake...for 把……错当成 on average 平均来看 far and wide on top of 在……上面 四处，到处 Complete sentences with correct forms of the given words. Lead in 1. We should improve our ____________ (environment) conditions. 2. If we use natural resources ______ (wise), we’ll protect our earth better. 3. We try different ways to reduce water _________ (pollute) in the river. 4. As a ________ (report), he often reports on green‑living topics. 5. The clever____________ (business) tries to protect our local river. 6. Workers are putting rubbish from the tall ________ (build) into trucks. environmental wisely pollution reporter businessman building 话题: Live green（绿色生活） 功能: Talk about green living and value our environmental responsibility. （谈论绿色生活，重视我们的环境责任） 01 Use word formation in discussions about environmental problems. （在讨论中运用构词法描述环境问题） 02 Express opinions on environmental responsibility. （表达对环境责任的看法） 03 Discuss ways to live green in our daily life. （探讨在日常生活中践行绿色生活的途径） 话题梳理 Live green Environmental problems Word formation Express opinions on environmental responsibility When plastic was invented around the 1860s, it was considered an amazing material. Some animals, such as whales, eat it by mistake and die. Suffixes change word class: pollution, harmful. Prefixes re-/un- make reuse, unsafe. Plastic makes life easier for many people, yet it brings long-lasting troubles to our planet. Our choices today change the world tomorrow. Discuss ways to live green in our daily life Recycling means breaking waste into materials to make new things. We can turn an old shirt into a new dress or a bag instead of buying one. 话题梳理 1. When plastic was invented around the 1860s, it was considered an amazing material. (教材P84) 考点突破 ①At first, plastic ______________ an amazing material. 起初塑料被认为是一种神奇的材料。 ②汉译英：我们认为骑自行车是绿色的出行方式。 ___________________________________________ ③You should _____________ the underground to work. 你应当考虑乘地铁去上班。 was considered We consider cycling (to be) a green way to travel. consider taking 1. When plastic was invented around the 1860s, it was considered an amazing material. consider sb./sth. (as/to be)... 意为“认为某人/某物……”；consider表示“考虑”时后接动名词，被动结构为 be considered as/to be...。 考点突破 consider sb./sth. (as/to be)... 认为某人/某物…… Plastic was considered an amazing material. consider doing sth. 考虑做某事 You should consider taking the bus to school. be considered as/to be... 被认为/看作…… Green living is considered to be a new lifestyle. consider 用法归纳 2. It quickly replaced wood and other natural materials. (教材P84) 考点突破 ① Plastic quickly ________ wood and other natural materials. 塑料很快取代了木材和其他天然材料。 ② 汉译英：我们应当用布袋替换塑料袋。 ___________________________________________ ③ So far, e-books _____________ many paper books. 到目前为止，电子书已取代许多纸质书。 replaced We should replace plastic bags with cloth bags. have replaced replace意为“代替，取代”，其名词形式为 replacement；常用搭配为：replace A with B 表示“用B替换A”。其近义短语为: take the place of “代替，取代”。 短语 含义 例句 replace sth. 取代/更换某物 Plastic quickly replaced wood. replace A with B 用B替换A We replace plastic bags with cloth bags. 2. It quickly replaced wood and other natural materials. (教材P84) 考点突破 【归纳】replace的常用搭配 3. Since then, it has become a danger to sea animals. (教材P85) 考点突破 ① Plastic waste has become ______ ______ ______ sea animals. 塑料垃圾已成为海洋动物的一种危害。 ② Many wild animals are ______ ______ now. 许多野生动物现在正处于危险中。 ③ 汉译英：污染正使许多动物处于危险中。 ___________________________________________ Pollution is putting many animals in danger. in danger a danger to ①表示危害：a danger to对……是一种危害 Plastic waste is a danger to sea animals. ②表示处境：in danger“处于危险中”,out of danger“脱离危险” Many wild animals are in danger now. ③词形、词性转化：dangerous adj.; endanger v. It is dangerous to put waste into the sea. 3. Since then, it has become a danger to sea animals. 考点突破 danger 作名词，意为“危险，危害”，主要考点如下： 4. Some animals, such as whales, eat it by mistake and die. (教材P85) 考点突破 ① Cows often _______ plastic bags ______ food and eat them. 奶牛常把塑料袋错当成食物吃掉。 ② I believe I _______________ in class yesterday. 我认为我在昨天的课堂上犯了一个错误。 ③ 汉译英：对不起，我错拿了你的书包。 ___________________________________________ Sorry, I took your schoolbag by mistake. made a mistake mistake for 4. Some animals, such as whales, eat it by mistake and die. mistake作名词，意为“错误”；作动词，意为“弄错，误解”。 短语 含义 例句 mistake A for B 把A错当成B Cows mistake bags for food. by mistake 错误地，无意地 I took your pen by mistake. make a mistake 犯错误 If you hurry, you may make a mistake. 考点突破 【归纳】mistake的常用搭配 5. It may take hundreds of years to break down. (教材P85) 考点突破 ① Plastic waste is hard to __________ in the soil. 塑料垃圾在土壤中很难分解。 ② The bus __________ on the way, so we had to walk. 公交车半路出故障，我们只好步行。 ③ 汉译英：和谈失败了，双方没有达成协议。 ___________________________________________ break down broke down The peace talks broke down without an agreement. break down意为“（使）分解；出故障；失败”。 短语 含义 例句 break down 分解；出故障；失败 Plastic takes years to break down. break up 打碎；散开;使）破碎 The glass fell and broke up. break out （火灾、战争）爆发 A big fire broke out last night. break into 强行闯入 Someone broke into the shop. 5. It may take hundreds of years to break down. 考点突破 【归纳】break构成的常用短语 构词法（合成、派生、转化） (1) The factory’s _________ (pollute) harms the river. (2) The water here is _______ (safe) to drink directly. (3) Burning plastic is ________ (harm) to people's health. (4) Old boots can be _______ (use) as flower pots. (5) 汉译英：我们应当发挥创造力，升级改造旧物。 → (6) 汉译英：微小行动改变我们日常的绿色生活。 → 考点突破 We should use creativity to upcycle old things. reused harmful unsafe pollution Small acts change our everyday green life. 三种主要的构词法 合成：由两个或多个独立单词直接组合，生成新词，词义大多可以由原词推断。如greenhouse（green + house）n. 温室。 派生：在词根前后添加词缀，改变词义（前缀re-, un-等）或改变词性（后缀-ly, -tion, -ful, -er等） 。如reuse、harmful。 转化：词形不变而词性转化为另一词性，读音大多不变。如waste、harm、mistake。 语法突破 构词法（合成、派生、转化） 构词法——合成法 合成法是一种灵活的构词方法，可以合成名词、形容词、副词、代词、动词等。 ①合成名词（n.）：country+side→countryside，home+work→homework，black+board→blackboard，web+site→website，moon+cake→mooncake ②合成形容词（adj.）：long+lasting→long-lasting，every+day→everyday， world+famous→world-famous，hard+working→hard-working ③合成副词（adv.）：any+where→anywhere，some+where→somewhere，every+where→everywhere，no+where→nowhere ④合成动词（v.）：over+come→overcome，under+stand→understand ⑤合成代词（pron.）：some+one→someone，any+one→anyone，every+one→everyone，no+body→nobody，some+thing→something 语法突破 派生法通过加前缀或后缀改变词义（加前缀）或词性（加后缀）。 ①前缀只改变词义，不改变词性。常见前缀有re-，un-，dis-等。 re-（再）+use→reuse（再利用），re-（重复）+cycle→recycle（回收利用）， un-（不）+happy→unhappy（不开心的），dis-（不）+like→dislike（不喜欢） ②后缀大多改变词性，基本不改变词义。常见后缀有-tion，-ful，-ly等。 nature+-al→natural（-al→形容词），harm+-ful→harmful（-ful→形容词），quick +-ly→quickly（-ly→副词），pollute +-tion→pollution（-tion→名词），report+-er→reporter（-er/-or表人） ③派生规律：由一个词根加上相应的词缀可以派生出名词、形容词、副词等。 语法突破 构词法——派生法 help helpful helpless helpfully helplessly able enable unable ability disable 转化法词形无变化，读音多不变，但词性发生转化。 ①动词转化为名词。 We use bags every day. 我们每天使用袋子。（v. 使用） the use of plastic 塑料的用途（n. 用途） ②名词转化为动词。 plastic waste 塑料垃圾（n. 垃圾） Don’t waste water. 不要浪费水。（v. 浪费） ③形容词转化为动词或名词。 clean water 干净的水（adj. 干净的）clean the room 打扫房间（v. 打扫） a red skirt红色的裙子（adj. 红色的） The girl in red is my sister.那个穿着红色衣服的女孩是我妹妹。（n. 红色衣服） 语法突破 构词法——转化法 判断新词的构成方式，关键看它是怎样形成的。 ①由几个词拼合而成的，是合成（compounding）。 pollute → pollution；safe → unsafe. ②加词缀构成新词的，是派生（derivation）。 waste (n.) → waste (v.)名动同形，是转化。 ③词形不变、词性改变的，是转化（conversion）。 long + lasting → long-lasting. 语法突破 构词法——合成、派生与转化的辨析 Work in pairs. Talk about an everyday thing that is useful but causes environmental problems. Student A: What is it? It is useful because... Student B: What problems? What should we do? Useful expressions: — ... was considered / called... — Since then, ... has become a danger to... — We can now see that ... causes problems. — It produces ... that cause(s) ... Let’s talk Task 1 Let’s write Write an ending to the story “Hey! Come on out!” (80-100 words). Use the four questions below to organize your draft. 1. What happened in the end? 2. How did people feel about it? 3. What did people do then? 4. What message do you want to tell? Task 2 Let’s report Work in groups. Make a report on your family's environmental habits and present it to the class. Follow the structure below. Introduction: why you make the report. Body: describe your family's habits and suggest improvements. Closing: call on everyone to live green. Task 3 Talk about green living and value our environmental responsibility. 话题梳理 Live green Use word formation in discussions about environmental problems. Express opinions on environmental responsibility. Discuss ways to live green in our daily life. Summary 要点回顾 （1）When plastic was invented around the 1860s, it was considered an amazing material. （2）It quickly replaced wood and other natural materials. （3）Since then, it has become a danger to sea animals. （4）Some animals, such as whales, eat it by mistake and die. （5）It may take hundreds of years to break down. （6）构词法（合成、派生、转化） Summary Homework Review what we learned in this unit. Unit 6 Thank you! $