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人教版八年级下册英语第八单元小结人教版八年级下册英语第八单元1【语法讲解】现在完成时(Present PerfectTense)⑴表示过去发生或已经完成的动作对现在造成的影响或结果一It sso dark,太黑了一Someone hasturned offthe light.有人把灯关上了⑵表示从过去某一时间开始并一直持续到现在的动作或状态常与since+过去的时间点,for+一段时间,since+时间段+ego,so far等时间状语连用Eg.I havelived herefor tenyears.我已经住在这里10年了(从10年前开始,持续到现在还住这儿)Eg.I havelived heresince
2003.自从2003年我就住在这儿(从2003年开始,持续到现在还住这儿)
(3)基本结构及句型转换主语+have/has+过去分词(done)(当主语是第三人称单数has,其余人称用have)
①肯定句主语+have/has+过去分词+其他I havefinished myhomework.(肯定句)谓语动词常用一般现在时代替一般将来时主要用于下列情况1主句为肯定句You willmiss thebus unless you hurryup.你要不快点就会错过班车You11fail inchemistry againunlessyouwork harder.如果你不再加把劲,你化学考试还会不及格2主句为否定句One cant learna foreignlanguage unlesshe studieshard.不下苦功夫是学不好外语的I willnot gounless Ihear fromhim.如果我不收到他的来信,我就不去【拓展】unless与if…not的辨析
5.Did youhear ourstepmother planningto killushear sb.doing sth.表示“听到某人正在做某事正在进行”例如I heardhim singingwhen Iwalked pastthe shop.昨天我路过商店时,听见他正在唱歌
②否定句主语+have/has+not+过去分词+其他I havenotfinished my homework.(否定句)
③一般疑问句Have/Has+主语+过去分词+其他一Have youfinishedyour homework一Yes,I have./No,I havent,一般疑问句及肯定、否定回答4has gone to,has beento,has been in的区别Have/Has gone to去了现在不在说话现场Eg.----Where isyour father----He hasgoneto Shanghai.Have/Has beento:去过已不在去过的地方Eg.My fatherhas beentoShanghai.Have/has beenin呆了多久还在所呆的地方Eg.My fatherhas beenin Shanghaifor two months.=My fatherhasbeeninShanghai sincetwomonthsago.5现在完成时的标志
①常与just,already,yet,ever,never,before,so far等连用,强调动作的完成,不强调动作的持续Have youever beento JapanI havejust finishedmyhomework.
②for+时间段;since+过去的时间点;since+段时间ago;since+一般过去时的句子They haveknown eachother forfive years.Since he was achild,he haslived inEngland.6动词过去式和过去分词的变化规则变化
1.一般在动词词尾直接加ed如pick fpicked—picked;wish-wished-wished;stay一stayed-stayed
2.以不发音的e结尾的动词后面加d如like fliked—liked;hope fhoped fhoped;phone—phoned fphoned
3.以一辅音字母+y II结尾的动词,变y为i,再加-ed如study-studied fstudied;hurry fhurried-hurried;reply-replied-replied
4.词尾只有一个辅音字母的重读闭音节动词,要双写辅音字母,再加-ed如stop fstopped fstopped;clap fclapped fclapped不规则变化
5.以不变应万变如let flet flet;put fput fput;read-read fread
6.若中间有双写e,则去掉一个e,单词末尾再加t如feel—felt ffelt;keep fkept fkept;sleep fslept fslept
7.结尾的字母d变t如lend flent flent;build一built-built;send-sent-sent
8.变为以-ought或-aught结尾如buy fbought fbought;bring fbrought-brought;catch fcaught fcaught;teach一taught ftaught人教版八年级下册英语第八单元2【话题写作】请你根据下表中所提供的信息以uLearn to express thanks为题,用英语写一篇演讲稿背景
1.认为上中学时吃好穿好是应该的;
2.走向社会后没有感恩意识学会感恩
1.感谢社会提供良好的教育机会;
2.感谢父母供养自己上学;
3.感谢老师传授知识;
4.感谢朋友的鼓励与帮助参考词汇enter society进入社会,sense ofthanks感恩意识,behavior行为要求
1.短文应包括所提供的所有内容,可以适当发挥,不要简单翻译;
2.演讲稿中不得出现真实的人名、地名及能够透露你个人身份的信息;
3.词数80词左右开头和结尾已给出,不计入总词数参考范文Good morning,boys andgirls!The topicof myspeech todayis uLearnto expressthanks”.We findsome studentswant toeat welland wearfashionableclothes atschool.When theyleave schooland entersociety,they dont knowhow toshow anysense ofthanks.I thinkthis behavioris notcorrect.As students,we shouldlearntoexpressthanks.The societyoffers usa chancetoreceive goodeducation.And ourparents alsosupport ustogo toschool.Our teachersteach usmuch knowledge,so weshouldthank them.We shouldalso thankour friendsbecausethey canalways giveus courageand help.In thefuture,we shouldnever forgetour society,parents,teachers andfriends.At present,we shouldstudy harderto make ourworld morebeautiful.Thank youfor yourlistening!人教版八年级下册英语第八单元3重点句型解析
2.Finally,a godwas somoved byYu Gongthat hesent twogodsto takethe mountainsaway.so…that…引导结果状语从句,意为“如此……以至于……”,此句型中,so是副词,常用来修饰形容词或副词常用句型为主语+谓语+so+adj./adv.+that从句例如Our teacheris sokind thatall ofus likehim.我们的老师是如此好心以至于我们都喜欢他He runsso fastthat nobodyin myclass cancatch upwithhim.他跑得那么快,我们班没有人能追上他【拓展】“如此……以至于……”归纳1so+形容词+a/an+单数名词+that从句=such+a/an+形容词+单数名词+that从句例如It wasso finea dayyesterday that we allwent outfor apicnic.=It wassuch afine dayyesterday that we allwentout fora picnic.昨天天气很好,我们都出去野餐了2such+形容词+复数名词/不可数名词+that从句例如They aresuch goodstudents thatthe teacherlikes them.他们都是很好的学生,老师喜欢他们It wassuch fineweather yesterdaythatwewent swimming.昨天天气很好,我们去游泳了3当that前的名词有表示数量多少的many,much,few,little等修饰时,只能用so,不能用sucho例如There wasso muchnoise outsidethatwecouldn thear theteacher.外面嘈杂声很大,以致我们不能听到老师的话He hadso manyfalls thathewasblack andblue allover.他跌了这么多的跤,以致全身青一块、紫一块的
3.It doesnt seemvery possibleto movea mountain.seem此处作连系动词,意为“似乎;好像“,后跟形容词作表语可以和seem to be相互转换例如He seemsvery angry.=He seemsto bevery angry.他好像非常生气【拓展】1“主语+seem+to be+表语”,表语多为名词或形容词,以说明主语的特征或状态例如Tom seemsto bea veryclever boy.Tom看上去是一个非常聪明的男孩Mr.Black seemed to bequite happy.Black先生好像十分快乐2“主语+seem+不定式”,此句型中,seem与不定式一起构成复合谓语例如Mrs.Green doesnt seem to likethe idea.格林夫人似乎不太喜欢这个主意The childrenseemedto be eatingsomething inthe room.孩子们好像正在房间里吃东西呢3“It seems+that从句”,其中it是形式主语,that引导主语从句例如It seemsthat noone knowswhat hashappened inthe park.似乎没有人知道在公园里发生了什么事It seemsto methat Mr.Brown willnot eagain.在我看来布朗先生不会再来了4uThere+seemtobe+名词“,tobe可省略,seem的单复数要由后面的名词决定例如There doesnt seemtobemuch hopeof ourbeating thatteam.看来我们战胜那个队没有多大希望There seemsno needto waitlonger.看来没有再等的必要To
4.…what spossible unlessyou trytomakeit happen.unless是连词,引导条件状语从句,意为“除非……;如果不……;除了……”,常引导一个否定意义的真实条件句,有时也可引导非真实条件句unless引导的条件状语从句中的。