1、更多资料添加微信号：DEM2008 淘宝搜索店铺：优尖升教育 网址：八年级下学期期末重难知识点串讲+精练专题06 重点语法归纳及专练（二）一、连词unless, as soon as, so/such.that.的用法n unless 连词，“如果不; 除非”，可转换为 if.not, 引导条件状语从句，也遵循 “主将从现”原则。u Well go fishing unless it rains tomorrow.=Well go fishing if it doesnt rain tomorrow. 假如明天不下雨，我们就去钓鱼。u 【注意】如果 unless 引导的从句是否定句, 则 un
2、less 不能用 if.not 互换。 n as soon as 的用法u as soon as 意为 “一就”, 引导时间状语从句，等于 “the minute that.” l 【注意】含 as soon as 的复合句也要遵循“主将从现”原则。n so/such.that.的用法u so/such.that. “如此以至于”，引导结果状语从句。其中 so修饰形容词或副词, such修饰名词, that后从句为结果。l 【注意】名词前有much, many, few, little修饰表示程度时，此时用 so 而不用 such。u 区分so that与so.that.l “窍门”: “在一
3、起”是 “目的”, “分开”是 “结果”。【专练】一、选择题1The young men all shouted “Happy New Year” _ it was twelve oclock.AafterBas soon asCifDthough2She says that shell have to close the restaurant _ business improves.AifBafterCunlessDwhen3It was the middle of the night _ the noise woke me up.AbecauseBifCwhenDalthough4-Im
4、afraid e-books might be bad for our eyes.-Hmm, but they will be helpful for us_we put them to good use.Aas soon asBas long asCeven thoughDso that5The movie Ne Zha is _ educational _ I want to see it again.Aso; thatBsuch; thatCtoo; toDenough; to二、完成句子6如果我们不小心地保护这些河流，它们就会变得越来越脏。 The rivers will become
5、 dirtier and dirtier _ we protect them carefully.7迈克一放学回家就开始做饭。Mike started cooking _ _ _ he got home from school.8这书桌太重我拖不动。This desk is_ heavy_ I cant move it.9迈克买了一个照相机，为的是夏天他能拍许多照片。Mike bought a camera _ _ he could take many pictures in summer.10这是一本很有趣的书，以至于我们大家都想看。 It is _ an interesting book
6、_ all of us want to read.二、形容词及副词比较级和最高级n 比较级u A+be+形容词比较级+than+B, 例：I am taller than my sister, but she is more active than me. “我比我的姐姐高，但是她比我更积极。”u A+实义动词+副词比较级+than+B, 例：Sam runs faster than Tom, but Tom gets up earlier than Sam. “Sam跑得比Tom快, 但是Tom起的比Sam早。”u 原级比较：l 肯定形式：A+be/实义动词+as+形容词原级/副词原级+as
7、+B, 意思是“A和B一样”, 例：Lucy studies as hard as Lily. “Lucy和Lily学习一样努力。”l 否定形式：A+be/实义动词+not+as/so+形容词原级/副词原级+as+B, 否定句中as可以替换成so, 意思是 “A不如B”。例：Betty doesnt sing as/so well as Kitty. “Betty没有Kitty唱得好。”u “the+比较级, the+比较级”, 意思是 “越就越”, 例：The more, the better. “越多越好。”u “比较级+and+比较级”, 意思是 “越来越”。例：It is gettin
8、g more and more popular. “它变得越来越受欢迎。”l 注意：more and more后如果接名词，其实此处是many和much的比较级，意思是 “越来越多的”, 例：More and more people come here. “越来越多的人来到这里。”u 选择疑问句中，含有比较级：特殊疑问词+be/实义动词+形容词/副词比较级, A or B?l 此类题型中，一定要看清楚比较范围的数量，两者为比较级，三者及以上使用最高级。u 注意：much, even, far, still, a lot, a bit, a little用于修饰比较级。比较级后有of the t
9、wo时，比较级前要加the。n 最高级u A+be/实义动词+形容词/副词最高级+in/of/among+范围l 注意：最高级必须有范围三者及以上之间u one of+the+形容词最高级+可数名词复数, 意为 “最之一”u the+序数词+形容词最高级+可数名词单数”, 意为 “第几最”u 比较级+than+any other+名词单数, 意为 “比其他任何一个更”, 使用比较级表达最高级。n 注意：定冠词the与形容词性物主代词、指示代词或名词所有格不能同时使用in不一定是同类，of同类n 倍数的表达u 基数词+times+as+形容词原级+asu 基数词+times+比较级+thanu
10、倍数+the size / length / width / height / age等名词+of【专练】一、选择题1My People, My Country is _ movie Ive ever seen.Amore educationalBthe most educationalCeducationalDless educational2Im proud of Ezhou, our homeland. So am I. It is becoming _.Amore and more beautifullyBmore beautiful and beautifulCmore and mo
11、re beautifulDmore beautifully and beautifully3Compared with a 1-day weekend, a 2-day weekend is _ as we may have enough time for our hobbies.Amore pleasantBless pleasantCthe most pleasantDthe least pleasant4Balanced diets are just as_as regular exercise in our daily lifeAimportantBmore importantCmos
12、t importantDthe most important5Could you tell me why you learn English so well?Its very simple. _ you study, _ grades you will get.AThe harder; betterBThe harder; the betterCHarder; betterDHarder; the better6An elephant is _ a panda. Avery heavier thanBmany times as heavier asCmany times heavier tha
13、nDas many times heavy as二、用所给词的适当形式填空7Qomolangma is_（high）than any other mountain in the world.8It seemed to him that truth would be _ than a lie. （safe）9How fast Ezhou develops! It becomes one of _ (live) cities.10 According to some studies, the _(fast) you read, the less you understand what you ha
14、ve read.11The Siberian tiger, known as the Northeast Tiger in China, is _ (large) tiger of all.三、 现在完成时基础知识 考点1 现在完成时基础知识n 定义：时间截止到现在，动作发生在过去，强调过去的动作对现在的影响。n 结构：u 肯定句：主语+have/has+过去分词+(have可缩写为ve, has可缩写为s)u 否定句：主语+have/has+not+过去分词+u 疑问句：Have/Has+主语+过去分词+？ Yes, 主语+have/has. No, 主语+havent/hasnt.n 现在
15、完成时与一般过去时u 现在完成时强调过去发生或已经完成的对现在造成的影响或结果，强调的是现在的情况。u 现在完成时不能和表示过去时间点的时间状语连用，例如：yesterday, last week, ten years ago等u 一般过去时只表示过去发生的动作或状态，并不强调与现在的关系或影响。 考点2 have/has been to.和have/has gone to.n have/has been to “曾经去过某地”（已经回来了）n have/has gone to “去了某地”（去了还没回来） 考点3 ever与nevern ever意为 “曾经”, never意为 “从不，从来
16、没有” 考点4 already与yetn already常用与肯定句中, “已经”, 通常用于句子中间或句末。n yet用于疑问句和否定句中, “还、尚、迄今、到那时”, 通常用于句末。 考点5 延续性动词与非延续性动词n for+一段时间及since+过去时间点或从句（从句的谓语动词用过去式）n 延续性动词与非延续性动词转化borrow/lendkeep buyhave finish/endbe over begin/startbe onarrive/come/go/move/reach/get tobe in/at/here/there closebe closediebe dead le
17、avebe away(from) go to schoolbe in school/be a student get upbe up fall asleepbe asleep fall illbe ill losebe lostbecomebe joinbe in/be a member of. return/come back/get backbe backget to knowknow receive/get a letterhave a letter catch/get a coldhave a cold 考点6 常与现在完成时搭配的时间状语n already, yet, ever, j
18、ust, never, before, so far, for+一段时间, since+过去的时间点, up to now等【专练】一、单项选择1Im so glad that I nearly half of the test now.AfinishBfinishedCwill finishDhave finished2 The book is popular. _ you _ it yet? Yes, I have.AAre; readingBWere; readingCHave; readDWill; read3 The air here is much fresher than bef
19、ore.Exactly! We a lot of trees in the past few years.AplantedBwere plantingChave plantedDwill plant4Corn production _ nearly 125 percent over the past 25 years in China.AjumpedBjumpsCwill jumpDhas jumped5 I have seen the film We Are All Fighters against the COVID-19. What about you, Peter? Oh. I _ i
20、t last week.Ahave seenBseeCsawDwill see6Mom, where is Dad?He _ the supermarket.Awas going toBhas gone toChas been toDis going to7The Great Wall is a place of interest. All of us _ there before.Ahas beenBhave beenChas goneDhave gone8Maria, what do you think of Mount Fanjing?Very cool. I_ there once.
21、Id like to go there again.Ahas beenBhave beenChave goneDhas gone9The Whites have _ Hong Kong.Oh, really? I have never _ there before.Abeen to, goneBgone to, beenCbeen to, gone toDgone to, been to10Have you ever _ to Caozhou Peony Garden?Yes, I _ there last year.Abeen; wentBgone; wentCbeen; goneDgone
22、; been11 The new shirt looks good on you. When did you buy it?On July 7th. I_ it for a week.Ahave boughtBhave hadCboughtDbuy12Mum, I want to watch the news about our school. Change the channel, please!What a pity! It is eight oclock now. It_ for a while.Ahas been overBwas overChas finishedDfinished1
23、3What do you usually do in your spare time?I often go to our community library. It _ for two years in order to encourage us to read more.AopensBhas openedChas been openedDhas been open14_have you kept this book?For two months.AHow soonBHow oldCHow longDHow often15-Excuse me ,when did you leave Jinzh
24、ou？-In August ,2017I _ for about two yearsAhave leftBleftChave been awayDwas away二、用所给单词的正确形式填空16He has the most beautiful blue eyes I have ever _ (see).17This novel is very interesting. My brother _（read）it three times.18The writer is so popular that he _ (sell) more than 200,000 books so far.19Unc
25、le Chen _（repair）more than five bicycles since last Friday.20Sandy borrowed the novel from the library last week and _ (keep) it for 5 days.21Cathy and Linda _ (not be) back to their hometown for two years.22Lucy _ (go) to Shanghai. Shell be back in a week.23Last week, my family _ (go) to visit the
26、Summer Palace.24Mr. Green _ (be) in China for about three years.三、句型转换25I have waited for the bus for twenty minutes.（对划线部分提问）_ _ have you waited for the bus?26His father died ten years ago. （同义句）His father _ _ _ for ten years.27Mr. Zhang has taught in this school since 1999. （同义句）Mr. Zhang has taug
27、ht in this school _ about 20 years.28He came here a week ago. （同义句）He _ _ here since a week ago.29Jim joined the mountain climbing club two years ago. (改为同义句) Jim has _ the mountain climbing club for two years.30He has already finished the work. （改为否定句）He _ finished the work _.31She has already come
28、 back from Hong Kong.（改为一般疑问句）_ she come back from Hong Kong _?32The children have never done that before.（改为反意疑问句）The children have never done that before, _ _?33Has Tina arrived in London yet?（作否定回答）_, _ _.四、单句选词填空34Tina _ (has been to/has been in) China for over ten years, so she knows a lot about Chinese culture.35Though Ben has _ (never/ever) been to Japan, he knows a lot about that country.36Have you _
