Unit 1 Past and present 单元复习课件 2026年初中英语译林版（2024）八年级下册

这是一份Unit 1 Past and present 单元复习课件 2026年初中英语译林版（2024）八年级下册，共36页。
Unit review单元复习Past and presentUnit 1 英语译林版八年级下册Lead-in地铁拥挤的方便的南方的先锋工业引领优秀的教育的荣誉公共的绿道电动的发展最近Lead-in1. 记者_________2. 旅游业_________3. 宽阔的________4. 抱有希望的 _________5. 创造力____________6. 设计者 _________________7. 迈步_________8. 早已 _________9. 客人 _________10. 普遍的 __________reportertourismwidehopefulcreativityplannerstepalreadyguestcommon话题梳理话题：Past and present (过去与现在)功能：Learn about the changes of our city and country. (了解我们的城市与国家的变化) Describe the changes of our hometown. (描述家乡的变化) 话题梳理Past and present(1) The sports car ran ____ high speed and soon disappeared in the distance.A. in B. on C. at D. with(2) Our teacher told us that light travels ____ the speed of 300,000 km/s.A. in B. at C. for D. by1. speed的用法CBspeed有多种含义和用法:(1) 名词 (n.) ：速度；速率固定搭配：at high/low speed 高速/低速；at the speed of... 以……的速度(2) 动词 (v.) ：(sped / speeded, sped / speeded) 加速；疾驰；超速行驶固定搭配：speed up 加速1. speed的用法①The car is running at high speed on the highway.② Light travels at the speed of 300,000 kilometers per second.(名词) ③The train sped through the countryside.④We need to speed up if we want to catch the early bus.(动词)1. speed的用法用used to的适当形式填空(1) My father ______ smoke, but now he has given it up.(2)  ______ they ______ play basketball after school?(3) There _____________ be a hospital in this area.(4) She _____________ like reading, but now she reads books every night.2. used to的用法used toDid use todidn’t use todidn’t use to used to  是情态动词短语，仅用于过去时，表示过去常常做某事或过去存在某种状态，而现在已经不这样了。如： 肯定句结构：主语 + used to + 动词原形 + 其他。 否定句结构：主语 + didn’t use to + 动词原形 + 其他。 一般疑问句结构：Did + 主语 + use to + 动词原形 + 其他？2. used to的用法例句： She used to play the piano every day, but now she prefers to play the guitar.There used to be a small park here, but now it has become a shopping mall.He didn’t use to like vegetables, but now he eats them every meal.Did you use to ride a bike to school?2. used to的用法翻译句子：(1)教育公平是社会公平的核心。 Educational equality is ____ ____ ____ ____social fairness.(2)这座博物馆位于城市的正中心。 This museum is ____ the ____ ____of the city.3. at the heart of的用法at the heart of at very heart at the heart of 是介词短语，意为“在……的核心/中心；是……的核心”，可用于描述抽象事物（如问题、理论、计划）或具体地点的核心位置，在句中常作表语或状语。 如果要表示“在……的正中心”，可以用“at the very heart of”。如：A beautiful square is at the very heart of the old town.Innovation is at the heart of our company's development strategy.3. at the heart of的用法选用A. a wealth of或者B. many填空（填入字母序号）。(1) The scientist has made ______ discoveries in his lifetime.(2) There are ______ people in the supermarket on weekends.(3) Reading widely can help us gain ______ wisdom.(4) My little brother has ______ toy cars in his bedroom.4. a wealth of的用法A/BA/BAA/B a wealth of 是量词短语，意为 “大量的；丰富的”，后接不可数名词或可数名词复数（与a lot of 相似），强调事物的丰富性、价值性。如： (1) The library has a wealth of books on history. (2) Traveling abroad will bring you a wealth of experience. 4. a wealth of的用法用 as well as 或 as well 填空，并口译这几个句子。(1) Tom, __________ his parents, is going to the park this weekend.(2) My brother likes swimming, and he likes running __________.(3) She is good at English __________ math.(4) Lucy will come to the party, and Lily will come __________.5. as well as与as well的用法辨析as well as as wellas well as as wellas well as词性为连词短语，意为 “和；也；不但……而且……” ，强调前者，连接两个并列的人或事物；后接动词时，动词形式需与前面的主语保持一致（即“就远原则”）。结构：A as well as B + 谓语动词（与A保持一致）5. as well as与as well的用法辨析as well词性为副词短语，意为 “也；还” ，常用于肯定句末尾，相当于 too，前面无需加逗号。- 结构：主语 + 谓语 + 其他 + as well5. as well as与as well的用法辨析例句：(1) She as well as her classmates likes playing badminton.(2) This store sells clothes as well as shoes.(3) I am going to the cinema, and my sister is going as well.(4) He can speak English, and he can speak French as well.5. as well as与as well的用法辨析汉译英，注意 the key to 的用法(1) 这是我家大门的钥匙。 This is the _____ ____ my front door.(2) 多听多说才是学好口语的关键。 Listening and speaking more is the _____ to __________ oral English well.6. the key to的用法key to key learning the key to 是名词性短语，意为 “……的关键；……的钥匙”，其中 to 是介词，后接名词、代词或动名词，不能接动词原形。如： This is the key to the classroom. Hard work is the key to success. Practicing more is the key to improving your English.6. the key to的用法翻译句子：1. 我已经吃过早饭了。 I _____ ____ ____breakfast.2. 他还没有完成他的项目。 He ______ ______his project yet.3. 你曾经见过大熊猫吗？ _____ you ____ ____ giant pandas?Present perfect tense(现在完成时)have already had hasn’t finished ever seen Have 现在完成时表示过去发生的动作对现在造成的影响或结果，也可表示动作从过去持续到现在。如：  I have finished my homework. Now I can watch TV. （我现在可以看电视了。） My parents have lived in Wuhan for 20 years. （我父母对武汉很熟悉。）Present perfect tense(现在完成时) 现在完成时基本结构 1. 肯定句：主语 + have/has + 动词的过去分词 (done) 主语为第一、二人称单复数/第三人称复数 → 用 have 主语为第三人称单数 → 用hasPresent perfect tense(现在完成时)2. 否定句：主语 + have/has + not + 动词的过去分词 缩写形式：haven’t / hasn’t3. 一般疑问句：Have/Has + 主语 + 动词的过去分词？ 肯定回答：Yes, 主语 + have/has. 否定回答：No, 主语 + haven’t/hasn’t.Present perfect tense(现在完成时)动词过去分词的变化规则 一般情况直接加-ed：work → worked; play → played 以不发音的e结尾直接加-d： live → lived; like → liked Present perfect tense(现在完成时) 以重读闭音节结尾，且末尾只有一个辅音字母，双写末尾辅音字母，再加-ed： stop → stopped; plan → planned 以辅音字母 + y结尾变y为i，再加–ed： study → studied; carry → carried Present perfect tense(现在完成时) 除此之外，还有不规则变化，例如： be改为been； go改为gone；do改为done； see改为seen；eat改为eaten；take改为taken；write改为written；know改为known；have改为had等。Present perfect tense(现在完成时)标志性时间状语1. 表示“已经、曾经”：already（肯定句中）、yet（否定句/疑问句末尾）、ever、never2. 表示“从过去持续到现在”：for + 一段时间、since + 过去的时间点/从句3. 表示“最近、迄今”含义的词和短语：recently、so far、up to now、in the past few yearsPresent perfect tense(现在完成时)例如：She hasn’t read this book yet.她还没读过这本书。He has studied English since 2018.他从2018年开始就学英语了。So far, we have learned 1000 English words.到目前为止，我们已经学了1000个英语单词。Present perfect tense(现在完成时)Task 1How is the means of transportation changing? Work in groups to talk and give a report. Task 2What have changed in your family or in your community? Think and share. We used to live in a small house in... Now, we have moved into a big house with a small garden.My mother used to work at… Now she is a…SummarySummary（1）speed的用法（2）used to的用法（3）at the heart of的用法（4）a wealth of的用法（5）as well as与as well的用法辨析（6）the key to的用法（7）Present perfect tense(现在完成时) HomeworkThank you!Unit 1