Unit 2 Welcome to the unit 教材考点词汇详解笔记 2026-2027学年译林版英语八年级上册

该初中英语知识清单系统梳理了8A U2 Welcome单元的核心词汇、重点句型及短语知识体系。从plastic、cheap等词汇的词义辨析和用法拓展出发，到What感叹句的结构解析，再到get sb. doing sth.、be good for等短语的语境应用，形成由词到句再到语用的学习支架。 知识链路按照“词汇基础-句型结构-短语应用”的逻辑清晰呈现，每个知识点配有考点精析、归纳拓展和实际运用训练。通过对比辨析（如cheap与expensive的反义关系）、情境化练习（如环保主题的句子翻译），培养学生的思维品质，增强语言运用能力，助力学生高效掌握单元重点，提升英语学习能力。

8A U2 welcome 教材考点笔记 教材考点词汇及重难点句型全解 1.plastic (考察单词意思) adj.塑料的;可塑的 used plastic bottles 使用过的塑料瓶 throw away millions of plastic bottles, plastic wrap 塑料保鲜膜; The plastic wrap keeps the food fresh. 塑料保鲜膜可以让食物保持新鲜。 plastic cup 塑料杯子 Mum bought me a plastic cup for drinking water. 妈妈给我买了一个塑料杯子喝水。 plastic bag 塑料袋; I used a plastic bag to carry my lunch today. 今天我用一个塑料袋装午餐。 plastic n.塑料 The toy car is made of plastic. 这个玩具小汽车是用塑料做的。 [考点训练-实际运用] 1.The (塑料的)cover protects the book from getting wet. 2.There is always a lot of p rubbish and paper bags on the side of the road. 3.我们应该回收塑料袋,而不是扔掉它们。 We should recycle instead of throwing them away. 参考答案 1.plastic 2.plastic 3.plastic bags 2.What 感叹句! [教材语境] What a good way to get the children learning! 这是让孩子们学习的好方法啊! [考点精析] 这是一个简单句,句子类型是感叹句。感叹的成分a good way是名词,所以感叹句使用what来引导。 句子结构是“What+不定冠词a+形容词good+名词way+其他!”。本句省略了主语it和be动词。 句子完整的表达是What a good way to get the children learning it is! What a nice day it is! 多么好的天气啊! What bad weather it was yesterday! 昨天天气真糟糕啊! How beautiful the picture is! 这幅画真漂亮啊! How fast he runs! 他跑得多快啊! [归纳拓展] 感叹句的结构:包括由what和how引导的两种类型。 what引导的感叹句有三种句式: (1)What+a/an+形容词+可数名词单数+主语+谓语! (2)What+形容词+可数名词复数+主语+谓语! (3)What+形容词+不可数名词+主语+谓语! how引导的感叹句主要有两种句式: (1)How+形容词+主语+谓语! (2)How+副词+主语+谓语! [考点训练-实际运用] 1.—Hi, guys! Our team won the first place in the table tennis match. — exciting news it is!We are so happy about it. A. What B.How C. What an D.How an 2. amazing it is! The Shenzhou XVIII members raise fish for the first time in Tiangong space station. A. What B. How C. What an D.How an 3.那几艘龙舟好美呀! the dragon boats are! 参考答案 1.A 2.B 3.How pretty/nice/beautiful 3.get sb. doing sth. [教材语境] What a good way to get the children learning! 这是让孩子们学习的好方法啊! [考点精析] get sb. doing sth. 使某人开始做某事 get + adj. get to do sth. 有机会做某事;得以做某事(最常用) 强调好不容易、有幸、能够去做一件事 get to do sth. 开始做某事 4.cheap (考察单词意思) adj.便宜的 (反义词)expensive adj.昂贵的 cheap (比较级)cheaper (最高级)the cheapest expensive (比较级)more expensive (最高级)the most expensive 5.be good for 对……有好处 Vegetables are good for your health. 蔬菜对你的身体有益。 (反义短语)be bad for Watching TV for a long time is bad for your eyes. 长时间看电视对你的眼睛不好。 [考点精析] good 的其他短语: be good at = do well in doing sth. 擅长;在某方面做得好 My father is good at playing chess. 我父亲擅长下国际象棋。 be good with 善待…… People must be good with animals. 人们必须要善待动物。 be good to sb. = be friendly/kind/nice to sb. [考点训练-实际运用] 1. Drinking plenty of water is good f your skin. 2.—I got an A in my English test. —Wow!You are really English. A. good for B.good at C.good with D.good to 3.锻炼对身体健康有好处。 Exercise physical health. 参考答案 1.for 2.B 3.is good for 6.environment (考察单词意思) n.环境 improve the environment 改善环境 environmental adj.环境的;生态环境的 7.live far away from school 住得离学校远 [考点精析] far away from + 地点 / 人 离…… 很远;远离 far away from = far from [考题情景] far away from 离…… 很远; 自带 “遥远” 的程度,不能和具体数字连用。 away from 距离…… 有多远;离开 只表 “远离、相隔”,不体现远近程度,前面必须加数字 / 修饰词。 结构:数字 + away from + 地点 [考点训练-实际运用] 1.一 is Sunshine Town from your school? — It's about 20 kilometres our school. A. How often; far from B. How long; away from C. How soon; far away from D. How far; away from 参考答案:D 8.unusual adj.不平常的 an unusual day 不平常的一天 [考点精析] (反义词)usual adj.平常的,通常的 usually adv.通常 On Friday afternoon,our school ends earlier than usual. 在星期五下午,我们学校放学比平时早。 It's usual for him to go to school on foot. 他通常步行去上学。 as usual 像往常一样,照例 As usual,he got to school at 7 o'clock. 像往常一样,他七点到校。 1 学科网(北京)股份有限公司 $