Unit 1 语法讲解及习题：冠词 a_an_the 和零冠词 2025-2026学年沪外教版英语八年级上册

沪外教英语八上Unit1语法讲解及习题 冠词 a/an/the 和零冠词 一、语法核心讲解 (一)不定冠词 a/an 1. 核心用法 1. 首次提及某人或某物 例:The honeybee is an insect. 例:I saw a giraffe in the zoo yesterday. 2. 代表一类人或事物(用单数表整体) 例:A beaver is a large animal that lives near water. 例:An eagle is a bird at the top of the food chain. 3. 表示“每一”(表频率/单位) 例:We visit the wildlife park a month. 2. a 与 an 的区别(只看发音,不看字母) a + 辅音音素开头:a bird, a panda, a useful animal, a European bee an + 元音音素开头:an insect, an elephant, an hour, an unusual bird, an honest zookeeper (二)定冠词 the 1. 核心用法 1. 复指前文已出现的人或事物 例:I saw a beaver in the park. The beaver was building a dam. 2. 指代说话双方都清楚的对象 例:Please pass the book about animal protection. 3. 独一无二的事物/特定地理区域 例:The blue whale is the largest animal in the world. 例:Emperor penguins live in the Antarctic. 4. 形容词最高级、序数词前 例:The blue whale is the loudest animal on Earth. 5. 特指某一群体(而非泛指所有) 例:The beaver population fell quickly because of human activities. 例:We must protect the crocodiles in this park. 6. 固定搭配:the balance of the ecosystem (三)零冠词(/,不加冠词) 1. 核心用法 1. 复数名词泛指一类事物 例:Beavers are important for the ecosystem. 例:Dolphins mainly eat fish. 2. 不可数名词泛指一类物质/概念 例:The honeybee makes honey. 例:Water is necessary for all animals. 3. 专有名词(人名、地名、大洲等,除独一无二地理区域外) 例:Shaun Foggelt is called "The Croc Man". 例:We learned about animals in Africa. 4. 泛指群体/抽象概念 例:animal-lovers, visitors 例:It is important to educate people on the benefits of beavers. 2. 核心对比表 冠词类型 核心含义 适用名词 示例 a/an 泛指、首次提及 可数名词单数 The honeybee is an insect. the 特指、复指、独一无二 所有名词 The beaver population fell quickly. 零冠词 泛指、整体 复数名词、不可数名词 Beavers are large animals. 二、习题 题型1:单项选择 1. The eagle is _ unusual bird. It's at the top of the food chain. A. a B. an C. the D. / 2. _ butterfly is a common insect that can be seen in parks. A. A B. An C. The D. / 3. The hen isn't _ mammal. It is _ bird. A. a; a B. an; a C. the; a D. /; a 4. _ emperor penguins mainly live in _ Antarctic. A. A; the B. The; the C. /; the D. The; / 5. I saw _ giraffe in the zoo. _ giraffe was from Africa. A. a; The B. an; A C. the; The D. a; / 6. Blue whale is _ largest animal in _ world. A. the; a B. the; the C. a; the D. /; the 7. Most dolphins live in _ ocean and are good swimmers. A. a B. an C. the D. / 8. They can reach speeds of more than 18 miles _ hour. A. a B. an C. the D. / 9. _ dolphins mainly eat fish and small sea animals. A. A B. An C. The D. / 10. It is important to protect _ crocodiles in "Crocodiles of the World". A. a B. an C. the D. / 题型2:用a/an/the/∅填空 (一)基础填空 1. The honeybee is _ insect. 2. It has got _ golden yellow body. 3. It makes _ honey. 4. _ beavers are large animals. 5. _ beaver population fell quickly as a result of human activities. (二)篇章填空 From zoos, to wildlife parks, to city farms, there are many places for 1_ animal-lovers to visit in the UK. One of 2_ most exciting places is "Crocodiles of the World" near Oxford. Here, you can see 150 crocodiles and other reptiles. It was 3_ idea of Shaun Foggelt, or "The Croc Man". Shaun had 4_ collection of crocodiles at his home, but there wasn't space for all of them. He didn't want to give 5_ crocodiles to other people so he decided to start 6_ zoo. Now, Shaun helps to protect 7_ crocodiles and teach other people about them. 8_ visitors can look at them and help to feed them. (You must be careful, of course!) You can also donate 9_ money to 10_ organisation. 题型3:判断正误并改正 1. ( )An eagle is a bird. _ 2. ( )I saw a panda. A panda was eating bamboo. _ 3. ( )Beaver is an animal that can build dams. _ 4. ( )The honey is sweet and is made by bees. _ 5. ( )Emperor penguins live in Antarctic. _ 题型4:句型转换 1. A beaver is a rodent.(改为泛指复数句) _ are rodents. 2. I saw an elephant. The elephant was very large.(合并为一句) I saw _ _ _ that was very large. 3. Honey is made by bees.(改为特指“这个蜂巢的蜂蜜”) _ _ from this hive is very sweet. 4. The panda is an animal.(对划线部分提问) _ _ _ _ is the panda? 5. Dolphins live in the ocean.(改为泛指句,保留核心含义) _ live in _ ocean. 三、答案与解析 题型1:单项选择 1. B unusual 以元音音素/ /开头,表泛指用 an。 2. A butterfly 以辅音音素/b/开头,表泛指用 a。 3. A mammal 和 bird 均为辅音音素开头,表泛指用 a。 4. C emperor penguins 复数泛指用零冠词;Antarctic 前加 the。 5. A 首次提及用 a,再次提及特指用 the。 6. B 最高级 largest 前用 the;in the world 是固定搭配。 7. C the ocean 特指海洋这一整体。 8. B hour 以元音音素/a /开头,表“每小时”用 an。 9. D dolphins 复数泛指用零冠词。 10. C 特指该园区的鳄鱼,用 the。 题型2:用a/an/the/∅填空 (一)基础填空 1. an 2. a 3. ∅ 4. ∅ 5. The (二)篇章填空 1. ∅ 2. the 3. an 4. a 5. the 6. a 7. the 8. ∅ 9. ∅ 10. the 题型3:判断正误并改正 1. √ 2. A The 3. Beaver A beaver 4. 去掉 The 5. √ 题型4:句型转换 1. Beavers 2. an elephant 3. The honey 4. What kind of animal 5. Dolphins; the ( 1 ) 学科网(北京)股份有限公司 $