Unit 8 课时3 Grammar Focus（4a-4d）-2025-2026学年八年级下册英语同步辅导（人教版）

9.interviewer 10.organization 三、l1.give directions to 12.sort waste 13.look after 14.pick up 15.visit the elderly 能力提升 -、1.B2.C3.F4.E5.D 二、6.are7.to8.as9.than10.what 课时2 Section A(3a~3d) 基础巩固 -1.alone 2.volunteers 3.donation 4.Actually 5.experience 二、6.fed7.visit8.youth9.nursing 10.Leaves 三、11.A12.D13.D14.B15.C 能力提升 1.C2.A3.B4.D5.B6.D7.B 8.C9.C10.A 课时3 Grammar Focus(4a~4d) 基础巩固 -1.provides 2.warmly 3.lost 4.primary 5.army 二、6.since7.for8.since9.forl0.Since 三、Il.Peter has listened to the tape recorder for the whole night. 12.We have lived here since ten years ago. 13.They have watched TV since three hours ago. 14.My dad has been back home for four days. 15.The farmers have planted trees since last week. 四、16.C17.B18.D19.A20.C 能力提升 1.to help 2.education 3.preparations 4.interested 5.more meaningful 6.kindness 7.yourself 8.excited 9.understanding 10.satisfied Section B How does helping others make a difference? 课时4 Section B(1a~1e) 基础巩固 -1.ordinary 2.Teamwork 3.audience(s) 4.adults 5.worth 二、6.willing7.missing8.practical 9.successful 10.voluntary 三、ll.Ladies and gentlemen 12.sign up 13.Ever since 14.most of all 15.of great value 四、16.B17.A18.C19.C20.B 能力提升 1.A2.E3.D4.C5.Bnot sure if I was doing anything 6 One night,a heavy storm caused a power cut,leaving the classroom in darkness.As everyone was frozen,a soft light appeared.It was Wen who was holding a 7 in her hand.“We can still read,”she whispered.That was the first time I heard her voice. The next day,she sat 8.In the following days,she began to talk more.In my last class,she came up and gave me the lantern."So you will always have some 9,”she smiled gently. I came to give light,but found it was quietly 10.Volunteering isn't always loud or big.Sometimes,it's a quiet lantern-shared between the two,and shining in both directions. ()1.A.bored B.relaxed C.nervous D.surprised 课时3 Gramma 重点知识 现在完成时（二） 1.现在完成时的时间标志词for的用法 “or十时间段”常和现在完成时连用，表示动 作持续的时间，句中谓语动词为延续性 动词。 eg:We have waited for about three hours. 我们已经等了大约三小时。 2.现在完成时的时间标志词since的用法 (1)since-十过去具体时间点：作介词，后接具 体的年、月、日期，表示动作从该时间点持续 到现在。 eg:I've known Tom since 2016. 自从2016年起，我就认识汤姆了。 )2.A.though B.so C.since D.when )3.A.dictionary B.poster C.cake D.cup )4.A.stand up B.give up C.wake up D.look up )5.A.slowly B.carefully C.directly D.finally )6.A.simple B.interesting C.popular D.meaningful )7.A.book B.lantern C.candle D.lamp )8.A.farther B.lower C.closer D.longer )9.A.fun B.time C.light D.hope )10.A.returned B.collected C.connected D.accepted Focus(4a~4d) (2)since十一段时间十ago:表示从过去某一时 间开始延续到现在。要和现在完成时连用。 eg:I have been here since five months ago. 我从5个月以前就在这儿了。 (3)since+时间状语从句：作为连词，引导从 句表示动作的起始时间，主句用现在完成 时，从句用一般过去时。 eg:She has taught here since she left college. 自从她大学毕业，她就一直在这儿任教。 (4)Itis/has been+一段时间+since从句： 固定句式，意为“自…以来已经过了… 时间”，主句用一般现在时或现在完成时，从 句用一般过去时。 eg:It is/has been three years since he left his hometown.自他离开家乡已经三年了。 3.延续性动词和非延续性动词的区别 (1)延续性动词和非延续性动词的区别 分类 意义 示例 延续性动词表示 have,work, 能够延续的动 延续性 watch,keep, 作，这种动作可 动词 stay,wait, 以延续下去或产 sleep等 生持久的影响。 非延续性动词表 示不能延续的动 open,buy, 作，这种动作发 come,go,die, 非延续 生后，一般立即 join,leave, 性动词 结束。不能与表 stop,close, 示延续的时间状 finish等 语连用。 一、根据句意及首字母或汉语提示填写单词。 1.The charity p food for homeless people. 2.My dog always welcomes me w when I come back home every day. 3.It's easy to get I in the mountainous city of Chongqing. 4.What's the difference between p (小学教育的)school and middle school? 5.Both of my brothers are in the (军 队)，so we don't see each other often. 二、用since或for填空。（语法专练） 6.They have learned Chinese they came to China. 7.I haven't seen her 8 years. 8.He has stayed here 2019. (2)常见延续性动词和非延续性动词的转换 非延续性动词 延续性动词 buy have borrow keep become be die be dead leave be away finish/stop be over come/go/join be in/at marry be married open be open close be closed fall ill be ill fall asleep be asleep 基础巩固 9.She has had the doll two years. 10.-How long has Mary been a dentist? last year. 三、将下列句子改写成现在完成时。（语法专 练) 11.Peter listened to the tape recorder the whole night. 12.We lived here ten years ago. 13.They watched TV three hours ago. 14.My dad returned home four days ago. 15.The farmers planted trees last week. 四、单项选择。 ()16.-Are you a football player in your school? -Yes,I the team three years ago.I it for three years. A.joined;have joined B.have joined;have been in C.joined;have been in D.have joined;have joined )17.Mr Brown has worked in the factory he finished college. A.after B.since C.when D.until )18.-How long you this book? 阅读短文，从方框中选择适当的词并用其正确 形式填空。 educate excite interest kind mean prepare satisfy understand you help How are you going to spend your summer vacation?Many students plan to travel around the world.However,some students choose to volunteer their time 1. others in need.What are the reasons for this? Well,to get a well-rounded 2. you need to leave the classroom.Volunteering will help you learn more skills.More importantly,you'll make a big difference to other people's lives. But before you start your volunteer work, you should make good 3. You need -For two weeks. A.did;borrow B.have;borrowed C.have;bought D.have;had )19.He has worked in the city three years ago while his wife has been here only one month. A.since;for B.since;since C.for;since D.for;for )20.Ann has learnt English A.for six years ago B.at the age of four C.since she was four D.twelve years ago 能力提升 to find out what you are 4. in,and what volunteer job you will do.Remember, the better you prepare for it,the 5. your volunteer work will be. Marton Mengerink used to teach English in Vietnam."It was one of the most wonderful experiences in my life.It changed my life.I will keep on doing this in the future and show my students great 6. ,”he said.“People often say,Why do you work for free?You don't get anything.’I reply,‘Try it 7. and you will find that you get a lot.'You get something that cannot be described in words.Sometimes I'm really 8. about the work because I always have a feeling of joy.” All in all,volunteering is a win-win! Experiencing volunteer work will improve your in need,you'll become more open-minded and be 9. of the world!When you help those 10. with yourself. Section B How does helping others make a difference? 课时 4 Section B(1a~le 重点知识 2.worth的用法 worth作形容词，意为“值得；有价值”，通常 1.value的用法 用于描述某物或某人的价值或重要性。在 value作名词，意为“价值；重要作用”，既可 句中，worth通常和be动词连用，构成主系 作可数名词，也可作不可数名词。常见 表结构。后面可以接名词或表示钱的数词。 用法： the value of...…的价值 常见用法： be worth doing sth值得做某事 of value有用的；值钱的(value前可用great、 little、no等词修饰) It's worth doing sth..做某事是值得的。 eg:The old painting is worth$50,000.这幅 eg:Nowadays,more and more people have 古画值5万美元。 realized the value of Al. The local museum is worth a visit. 现在，越来越多的人意识到人工智能的重 当地这家博物馆值得参观。 要性。 I hope this book will be of great value to Volunteering is worth trying for everyone. 志愿服务值得每个人去尝试。 both teachers and students. It's worth visiting a space exhibition this 我希望这本书对教师和学生都有很大帮助。 Sunday.这个星期天参观航天展是值得的。 知识拓展value作名词还可表示“价值观” 【特别提醒】sth be worth doing表达的是被 (常用复数形式values)。 动意义，动词必须是及物动词或相当于及物 eg:We should learn to respect others' 动词的动词短语。主语sth在逻辑上通常是 different values..我们应该学会尊重他人不 doing的宾语。 同的价值观。 基础巩固 一、根据句意及首字母提示填写单词。 3.His performance was wonderful,and all the 1.Even o people like us can make a a were attracted by it. difference when we work together. 4.If children go swimming,they must be 2.T is very important,so we need to protected by a pull together. 5.With wonderful treasures inside,National