Unit 4 The Wonders of Nature知识点总结及练习 2025-2026学年人教版八年级英语下册

2026-05-01
| 7页
| 307人阅读
| 4人下载

内容正文:

Unit 4 The Wonders of Nature 知识点总结 一、单元核心知识点梳理 (一)核心词汇(按类别梳理,必考点) 1. 自然奇观相关(核心必记) wonder(奇观;奇迹)、natural(自然的)、scenery(风景;景色)、shape(形状)、depth(深度)、vast(广阔的)、attract(吸引)、attraction(吸引力)、mystery(神秘;奥秘)、cave(洞穴)、waterfall(瀑布)、desert(沙漠)、rainforest(雨林) 2. 动作与探索相关 explore(探索;探究)、describe(描述;描绘)、discover(发现)、measure(测量)、record(记录)、protect(保护)、prevent(阻止)、share(分享)、learn(了解;学习)、discuss(讨论)、guide(指导;引导) 3. 动词及短语(必考点) natural wonder(自然奇观)、take a trip to(去……旅行)、explore the mystery of(探索……的奥秘)、be famous for(因……而著名)、attract visitors(吸引游客)、change the shape of(改变……的形状)、measure the depth of(测量……的深度)、take a record of(记录……)、protect...from...(保护……免受……)、share...with...(和……分享……)、by doing sth.(通过做某事)、in the west of(在……的西部) 4. 基础副词与介词 exactly(确切地;精确地)、gradually(逐渐地)、already(已经)、yet(还;尚未)、once(曾经)、now(现在)、by(通过……方式)、with(在……的帮助下)、of(……的)、since(自从……以来)、when(当……的时候)、about(大约) (二)核心语法(重点考点) 1. 现在完成时(核心重点) • 表示从过去开始持续到现在的动作或状态,或过去的动作对现在造成的影响,常与since(自从)、for(持续……时间)、already(已经)、yet(还;尚未)等词连用; 肯定句:主语 + have/has + 动词过去分词 + 其他(如:We have learned about many natural wonders since we started this unit. 自从开始这个单元,我们已经了解了许多自然奇观。); 否定句:主语 + haven’t/hasn’t + 动词过去分词 + 其他(如:She hasn’t found out the mystery of the ancient cave yet. 她还没有发现那个古老洞穴的奥秘。); 疑问句:Have/Has + 主语 + 动词过去分词 + 其他?(回答:Yes, 主语 + have/has. / No, 主语 + haven’t/hasn’t.)(如:Have you visited any natural wonders? Yes, I have. 你参观过自然奇观吗?是的,我参观过。); • 拓展:since引导的时间状语从句,主句用现在完成时,从句用一般过去时(如:He has known a lot about the Grand Canyon since he read the book. 自从读了那本书,他对科罗拉多大峡谷了解了很多。)。 2. 一般过去时(重点) • 表示过去发生的动作或存在的状态,谓语动词用过去式,常与yesterday、last weekend、when I was 11 years old等时间状语连用(如:My brother saw the vast desert when he traveled last summer. 我哥哥去年夏天旅行时看到了广阔的沙漠。); • 注意与现在完成时的区别:一般过去时强调过去的动作本身,不强调对现在的影响;现在完成时强调过去的动作对现在的影响或持续到现在的状态(如:He visited the waterfall last month. 他上个月参观了瀑布。/ He has visited the waterfall, so he knows it well. 他参观过那座瀑布,所以他很了解它。)。 3. 不定式to do表目的(核心重点) • 表示“做某事的目的”,结构为“主语 + 动词 + 其他 + to do sth.”(如:We should explore natural wonders to learn more about nature. 我们应该探索自然奇观,以更多地了解自然。); • 常见搭配:describe the natural wonder to practice English(描述自然奇观以练习英语)、take a record to remember the scenery(记录下来以记住风景)、protect natural wonders to pass them on(保护自然奇观以将它们传承下去)。 4. 词性辨析(易错点) • attract(动词,吸引)vs attraction(名词,吸引力;景点):attract作谓语,attraction作主语或宾语(如:The beautiful scenery attracts many visitors. 美丽的风景吸引了许多游客。/ The waterfall is a famous attraction. 那座瀑布是一个著名的景点。); • natural(形容词,自然的)vs nature(名词,自然):natural修饰名词,nature作主语或宾语(如:It’s a natural wonder. 这是一处自然奇观。/ We should protect nature. 我们应该保护自然。); • guide(动词/名词,指导;导游)vs guidance(名词,指导):guide可作谓语或宾语,guidance仅作宾语,常与with搭配(如:Our teacher guides us to describe natural wonders. 我们的老师指导我们描述自然奇观。/ With the guidance of our teacher, we finished the report. 在老师的指导下,我们完成了报告。)。 (三)重点句型(高频考点) 1. 描述自然奇观句型:...is a famous natural wonder with...(……是一处著名的自然奇观,有……。)(如:The Amazon Rainforest is a famous natural wonder with rich plants and animals. 亚马逊雨林是一处著名的自然奇观,有丰富的动植物。)。 2. 过去与现在对比句型:I used to know little about..., but now I...(我过去对……了解很少,但现在我……。)(如:I used to know little about the Victoria Falls, but now I know it’s a vast natural wonder. 我过去对维多利亚瀑布了解很少,但现在我知道它是一处广阔的自然奇观。)。 3. 询问与回答句型:—How many natural wonders have you visited? —I have visited...(—你参观过多少处自然奇观?—我参观过……。)(如:—How many natural wonders have you visited since last year? —Three. —自从去年以来,你参观过多少处自然奇观?—三处。)。 4. 目的句型:Sb. does sth. to do sth.(某人为了做某事而做某事。)(如:She takes a diary to record her experience of visiting natural wonders. 她写日记是为了记录自己参观自然奇观的经历。)。 5. 方式句型:Sb. does sth. by doing sth.(某人通过做某事来做另一件事。)(如:We learned about the mystery of the lake by watching a documentary. 我们通过看纪录片了解了那个湖泊的奥秘。)。 6. 固定句型:It’s + 形容词 + for sb. to do sth.(对某人来说,做某事是……的。)(如:It’s necessary for us to protect natural wonders. 对我们来说,保护自然奇观是很有必要的。)。 7. 询问方式句型:—How did you learn about...? —I learned about it by...(—你是如何了解……的?—我通过……了解的。)(如:—How did you learn about the Grand Canyon? —I learned about it by reading a book. —你是如何了解科罗拉多大峡谷的?—我通过读一本书了解的。)。 二、考点专项练习 (一)词汇类练习 1. 根据句意及汉语提示,填写单词的正确形式 (1)The Grand Canyon is a famous ________(自然的)wonder in the United States. (2)No one can measure the exact ________(深度)of this deep sea cave. (3)The beautiful mountain ________(风景)attracts thousands of visitors every year. (4)We should ________(探索)the mystery of natural wonders with a brave heart. (5)The strange ________(形状)of the rock looks like a sleeping lion. (6)The ________(广阔的)desert in Africa is one of the most amazing natural wonders. (7)The ________(神秘)of the deep sea interests many scientists around the world. 2. 用所给单词的适当形式填空 (1)My sister ________(see)the beautiful waterfall when she traveled to Yunnan last year. (2)We ________(learn)about many natural wonders since we started this unit. (3)Our teacher often ________(guide)us to describe natural wonders in English. (4)He ________(not discover)the secret of the ancient cave yet. (5)We should try our best ________(protect)natural wonders from being destroyed. (6)How many natural wonders have you ________(visit)since you were 10 years old? (7)She can describe the natural wonder ________(exact)because she visited it last month. (8)With the help of my classmates, I ________(finish)the report about natural wonders yesterday. (二)语法类练习 1. 单项选择 (1)—________ natural wonders have you visited since last year? —Four. They are all amazing. A. How many B. What C. When D. Where (2)She ________ to know little about the Amazon Rainforest, but now she knows a lot. A. use B. uses C. used D. will use (3)Our teacher ________ us to explore the mystery of natural wonders since we entered Grade 8. A. guide B. guides C. guided D. has guided (4)—Have you ________ the habit of recording natural wonders? —Yes, I have. It helps me remember them. A. develop B. developed C. developing D. develops (5)It’s important for us ________ to protect natural wonders instead of destroying them. A. learn B. learning C. to learn D. learned (6)—How did you learn about the mystery of the lake? —I learned about it ________ watching a documentary. A. by B. on C. in D. with (7)He ________ the beautiful scenery of the mountains by taking photos every time he visits them. A. record B. records C. recorded D. has recorded 2. 句型转换 (1)I used to know little about the Grand Canyon.(改为否定句) I ______ ______ ______ know little about the Grand Canyon. (2)She has discovered the mystery of the ancient cave since last month.(改为一般疑问句) ______ she ______ the mystery of the ancient cave since last month? (3)The Amazon Rainforest is a famous natural wonder with rich plants and animals.(对划线部分提问) ______ ______ a famous natural wonder with rich plants and animals? (4)He finished the report about natural wonders by himself.(改为同义句) He finished the report about natural wonders ______ ______ ______. (5)With the guidance of our teacher, we described the natural wonder.(改为一般过去时的否定句) With the guidance of our teacher, we ______ ______ the natural wonder. (6)We should explore natural wonders to learn more about nature.(改为一般疑问句) ______ we ______ natural wonders to learn more about nature? (7)I have visited three natural wonders since I entered Grade 8.(用he改写) He ______ ______ three natural wonders since he entered Grade 8. (三)综合运用练习 根据中文提示完成句子,每空一词。 (1)自从我们开始这个单元,我们已经了解了许多自然奇观。 Since we started this unit, we ______ ______ about many natural wonders. (2)他通过看纪录片了解了那个湖泊的奥秘。 He learned about the mystery of the lake ______ ______ a documentary. (3)对我们来说,保护自然奇观免受破坏是很有必要的。 It’s necessary for us to ______ natural wonders ______ being destroyed. (4)你过去常常向老师请教自然奇观的问题吗?是的,我常请教。 ______ you ______ ______ ask your teacher about natural wonders? Yes, I did. (5)亚马逊雨林是一处著名的自然奇观,有丰富的动植物。 The Amazon Rainforest is a famous ______ ______ with rich plants and animals. 参考答案 (一)词汇类练习 1. 根据句意及汉语提示填空 (1)natural (2)depth (3)scenery (4)explore (5)shape (6)vast (7)mystery 2. 用所给单词的适当形式填空 (1)saw (2)have learned (3)guides (4)hasn’t discovered (5)to protect (6)visited (7)exactly (8)finished (二)语法类练习 1. 单项选择 (1)A (2)C (3)D (4)B (5)C (6)A (7)B 2. 句型转换 (1)did not use to (2)Has; discovered (3)What is (4)by himself / on his own (5)didn’t describe (6)Should; explore (7)has visited (三)综合运用练习 (1)have learned (2)by watching (3)protect; from (4)Did; use to (5)natural wonder 学科网(北京)股份有限公司 $

资源预览图

Unit 4 The Wonders of Nature知识点总结及练习 2025-2026学年人教版八年级英语下册
1
Unit 4 The Wonders of Nature知识点总结及练习 2025-2026学年人教版八年级英语下册
2
相关资源
示范课
由于学科网是一个信息分享及获取的平台,不确保部分用户上传资料的 来源及知识产权归属。如您发现相关资料侵犯您的合法权益,请联系学科网,我们核实后将及时进行处理。