Unit 1 Section B 重点语句精讲课件2026-2027学年人教版英语九年级上册

这是一份Unit 1 Section B 重点语句精讲课件2026-2027学年人教版英语九年级上册，共21页。
Unit 1 Section B 语句精讲语句总览语句总览放在名词后面，用来修色前面的名词，相当于一个简化的定语从句表示被动或完成的含义，强调被修饰的名词和动作之间是被动关系可以和逗号连用，放在句子中间，对主语进行补充说明【解析】【知识点1】过去分词作后置定语（done)The new highway, built with the government’s support, has already cut the driving time between the two cities to about two hours.在政府支持下修建的新高速公路，已经将两座城市间的驾车时间缩短到了约2小时。【例句】The books, written by Mo Yan, are very popular in China.这些由莫言写的书，在中国非常受欢迎。The problem, discussed at the meeting yesterday, is very important.昨天会议上讨论的那个问题非常重要。表示将数量、时间、成本等降低到某个具体数值结构：cut+宾语（被削减的对象）+to+目标数值【解析】【知识点2】cut...to... 把......减少/缩短到......句 2【例句】The company cut the price to half of the original.公司把价格降到了原价的一半。We have cut the production cost to 10% of last year’s level.我们已将生产成本降至去年水平的10%。描述过去存在但现在已经不再发生的动作、习惯或状态强调“今昔对比”，暗示现在已经改变否定式：didn’t use to do 疑问式：Did... use to do?【解析】【知识点1】used to do sth. 过去常常做某事Messages used to take weeks to send between countries, but now they only take a few seconds online. 跨国信息过去要花几周时间才能送达，现在在线上只需几秒钟。句 2【例句】I used to get up late on weekends.我过去周末常常起得很晚。She used to play the piano, but now she doesn’t.她过去常常弹钢琴，但现在不弹了。There used to be a small shop here.这里以前有家小商店。表示“做某事需要花费多少时间/使用什么工具”，用来描述完成一件事的耗时或所需条件常用结构：It takes (sb.) + 时间 + to do sth. / 主语+ takes + 工具 + to do sth.可与过去时连用，描述过去的情况：It took (sb.) + 时间 + to do sth.【解析】【知识点2】take+时间/工具+to do sth. 花费/需要......来做某事【例句】It takes me 30 minutes to walk to school every day.我每天步行上学要花30分钟。It took the workers two years to build the new railway. 工人们花了两年时间修建这条新铁路。It takes patience and practice to learn a new language well. 学好一门新语言需要耐心和练习。表示有能力、有办法完成某事，常强调通过努力、借助条件或工具达成的能力与can的区别：can 多用于现在/过去的能力，be able to 更强调“成功做到”或“有条件做到”【解析】【知识点1】be able to 能够；可以I am able to finish my homework on time and prepare for the exams with ease.我能够按时完成作业，并轻松地为考试做准备。句 3【例句】Thanks to the new train, people are able to get to their workplaces on time.多亏了这趟新列车，人们能够准时到达工作地点。I was able to finish the project with my classmates’ help last week.上周我在同学们的帮助下，我成功完成了这个项目。With the help of the Internet, we are able to learn new things at home.在互联网的帮助下，我们能够在家学习新知识。介词短语在句中起状语作用，用来修饰动词或整个句子one time：表示“准时、按时”，修饰动作发生的时间状态；with ease：表示“轻松地、毫不费力地”，修饰动作完成的方式或程度【解析】【知识点2】介词短语作状语（on time/with ease) 【例句】I’m able to get the places on time.我能够按时到达各地。He can solve difficult problems with ease.他能轻松地解决难题。表示“虽然/尽管”，引导让步状语从句，用来引出与主句内容相反的情况注意：Although 与 but不能同时出现在一个句子中（二者择一使用）可以放在句首或句中，句首时常用逗号与主句隔开。【解析】【知识点1】Although 引导让步状语从句Although pollution is a serious problem, the volunteers show how communities can work together to protect the environment.虽然污染是一个严重的问题，但志愿者展示了社区如何共同努力来保护环境。【例句】Although it rained heavily, we still went to school on time. 虽然雨下得很大，但我们还是按时上学了。Although he is very young, he knows a lot about history.尽管他年纪很小，却懂得很多历史知识Although China and Kenya are far away from each other, the railway connects them closely.虽然中国和肯尼亚相距遥远，但这条铁路将它们紧密地联系在一起。用于表达“如何、怎样”，常用动词（如show, tell, know, understand等）的宾语从句必须使用陈述语序（主语在前，谓语在后），从句时态要和主句保持一致【解析】【知识点2】how 引导宾语从句 【例句】The teacher told us how we could solve the difficult problem. 老师告诉我们如何解决这道难题。The book explains how people can protect the environment the daily life.这本书解释了人们如何在日常生活中保护环境。——Tom, do you see the new bridge over the river?——Yes. It ______ be a narrow stone bridge. Now it is wide and safe for cars.A. used to B. was used toC. uses to D.is used to 模拟考场______ the railway is long, it hasn’t caused any serious pollution to the environment.A. Because B. AlthoughC. IfD. Since模拟考场The short story ______ by Mark Twain is very interesting.A. wroteB. writingC. writtenD. was written模拟考场用所给词的适当形式填空。模拟考场1. The machine ______ (use) in this factory was made in Shanghai.2. I’m sorry, but I won’t _________ (able) to attend the meeting tomorrow morning.usedbe able完成句子（根据中文提示补全英文，每空一词）。模拟考场1. 我们应该把这段文字从500字缩减到300字。We should ______ the passage ______ 300 wordsfrom 500 words.2. 他每天花20分钟读英语。It ______ him 20 minutes ______ read English everyday.cuttakestoto