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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
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。
We'll go fishing unless it rains tomorrow.=We'll go fishing if it doesn't rain
tomorrow.
假如明天不下雨，我们就去钓鱼。
【注意】如果 unless 引导的从句是否定句, 则 unless 不能用 if...not 互换。
as soon as 的用法
as soon as 意为 “一……就……”, 引导时间状语从句，等于 “the minute that...”
【注意】含 as soon as 的复合句也要遵循“主将从现”原则。
so/such...that...的用法
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。
【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。
区分so that与so...that...
“窍门”: “在一起”是 “目的”, “分开”是 “结果”。
【专练】
一、选择题
1．The young men all shouted “Happy New Year” ________ it was twelve o’clock.
A．after B．as soon as C．if D．though
2．She says that she'll have to close the restaurant ______ business improves.
A．if B．after C．unless D．when
3．It was the middle of the night ________ the noise woke me up.
A．because B．if C．when D．although
4．---I’m afraid e-books might be bad for our eyes.
---Hmm, but they will be helpful for us_________we put them to good use.A．as soon as B．as long as C．even though D．so that
5．The movie Ne Zha is ________ educational ________ I want to see it again.
A．so; that B．such; that C．too; to D．enough; 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 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 can’t 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 ________ all of us want to read.
二、形容词及副词比较级和最高级
比较级
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。”
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。”
原级比较 ：
肯定形式： A+be/ 实义动词 +as+ 形容词原级 / 副词原级 +as+ 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。”
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 doesn’t sing as/so well
as Kitty. “Betty没有Kitty唱得好。”
“ the+ 比较级 , the+ 比较级” , 意思是 “越······就越······”, 例：The
more, the better. “越多越好。”
“比较级 +and+ 比较级” , 意思是 “越来越······”。例：It is getting more and
more popular. “它变得越来越受欢迎。” 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。”
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?
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。
注意：①much, even, far, still, a lot, a bit, a little用于修饰比较级。
②比较级后有of the two时，比较级前要加the。
最高级
A+be / 实义动词 + 形容词 / 副词最高级 +in/of/among + 范围
注意：①最高级必须有范围 ②三者及以上之间
on e of+the + 形容词最高级 + 可数名词复数 , 意为 “最······之一······”
the + 序数词 + 形容词最高级 + 可数名词单数” , 意为 “第几最·····”
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。
注意：①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
②in不一定是同类，of同类
倍数的表达
基数词+times+as+形容词原级+as…
基数词+times+比较级+than…
倍数+the size / length / width / height / age等名词+of…
【专练】
一、选择题
1．My People, My Country is ________ movie I've ever seen.
A．more educational B．the most educational C．educationalD．less educational
2．—I'm proud of Ezhou, our homeland. —So am I. It is becoming ________.
A．more and more beautifully B．more beautiful and beautiful
C．more and more beautiful D．more beautifully and beautifully
3．Compared with a 1-day weekend, a 2-day weekend is _______ as we may have enough time for our hobbies.
A．more pleasant B．less pleasant
C．the most pleasant D．the least pleasant
4．Balanced diets are just as________as regular exercise in our daily life．A．important B．more important
C．most important D．the most important
5．—Could you tell me why you learn English so well?
—It's very simple. ________ you study, ________ grades you will get.
A．The harder; better B．The harder; the better
C．Harder; better D．Harder; the better
6．An elephant is __________ a panda.
A．very heavier than B．many times as heavier as
C．many times heavier than D．as many times heavy as
二、用所给词的适当形式填空
7．Qomolangma is_____________（high）than any other mountain in the world.
8．It seemed to him that truth would be ________ than a lie. （safe）
9．How fast Ezhou develops! It becomes one of ______ (live) cities.
10． According to some studies, the ________(fast) you read, the less you understand what you have read.
11．The 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
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。
结构：
肯定句：主语+have/has+过去分词+······(have可缩写为’ve, has可缩写为’s)
否定句：主语+have/has+not+过去分词+······
疑问句：Have/Has+主语+过去分词+······？ Yes, 主语+have/has. No, 主语
+haven’t/hasn’t.
现在完成时与一般过去时
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。
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
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...
have/has been to “曾经去过某地”（已经回来了）
have/has gone to “去了某地”（去了还没回来） 考点3 ever与never
ever意为 “曾经”, never意为 “从不，从来没有”
考点4 already与yet
already常用与肯定句中, “已经”, 通常用于句子中间或句末。
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
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）
延续性动词与非延续性动词转化
borrow/lend→keep buy→have finish/end→be over begin/start→be on
arrive/come/go/move/reach/get to→be in/at/here/there close→be close
die→be dead leave→be away(from) go to school→be in school/be a student
get up→be up fall asleep→be asleep fall ill→be ill lose→be lost
become→be join→be in/be a member of... return/come back/get back→be back
get to know→know receive/get a letter→have a letter catch/get a cold→have a cold
考点6 常与现在完成时搭配的时间状语
already, yet, ever, just, 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
1．I’m so glad that I nearly half of the test now.
A．finish B．finished C．will finish D．have finished
2．— The book is popular. ________ you ________ it yet?
— Yes, I have.
A．Are; reading B．Were; reading C．Have; read D．Will; read
3．— The air here is much fresher than before.
—Exactly! We a lot of trees in the past few years.
A．planted B．were planting C．have planted D．will plant
4．Corn production ________ nearly 125 percent over the past 25 years in China.
A．jumped B．jumps C．will jump D．has jumped
5．— I have seen the film We Are All Fighters against the COVID-19. What about you, Peter?
— Oh. I ________ it last week.
A．have seen B．see C．saw D．will see6．—Mom, where is Dad?
—He ___________ the supermarket.
A．was going to B．has gone to C．has been to D．is going to
7．The Great Wall is a place of interest. All of us ________ there before.
A．has been B．have been C．has gone D．have gone
8．—Maria, what do you think of Mount Fanjing?
—Very cool. I________ there once. I’d like to go there again.
A．has been B．have been C．have gone D．has gone
9．—The Whites have ________ Hong Kong.
—Oh, really? I have never ________ there before.
A．been to, gone B．gone to, been C．been to, gone to D．gone to, been to
10．—Have you ever ___________ to Caozhou Peony Garden?
—Yes, I ___________ there last year.
A．been; went B．gone; went C．been; gone D．gone; been
11．— The new shirt looks good on you. When did you buy it?
—On July 7th. I________ it for a week.
A．have bought B．have had C．bought D．buy
12．—Mum, I want to watch the news about our school. Change the channel, please!
—What a pity! It is eight o'clock now. It___________ for a while.
A．has been over B．was over C．has finished D．finished
13．—What 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.
A．opens B．has opened C．has been opened D．has been open
14．—________ have you kept this book?
—For two months.
A．How soon B．How old C．How long D．How often
15．-Excuse me ,when did you leave Jinzhou？
-In August ,2017．I _____ for about two years．
A．have left B．left C．have been away D．was away
二、用所给单词的正确形式填空
16．He has the most beautiful blue eyes I have ever ________ (see).17．This novel is very interesting. My brother __________（read）it three times.
18．The writer is so popular that he ________ (sell) more than 200,000 books so far.
19．Uncle Chen ________（repair）more than five bicycles since last Friday.
20．Sandy borrowed the novel from the library last week and ________ (keep) it for 5 days.
21．Cathy and Linda ___________ (not be) back to their hometown for two years.
22．Lucy ___________ (go) to Shanghai. She’ll be back in a week.
23．Last week, my family ___________ (go) to visit the Summer Palace.
24．Mr. Green ___________ (be) in China for about three years.
三、句型转换
25．I have waited for the bus for twenty minutes.（对划线部分提问）
________ ________ have you waited for the bus?
26．His father died ten years ago. （同义句）
His father ________ ________ ________ for ten years.
27．Mr. Zhang has taught in this school since 1999. （同义句）
Mr. Zhang has taught in this school ________ about 20 years.
28．He came here a week ago. （同义句）
He ________ ________ here since a week ago.
29．Jim joined the mountain climbing club two years ago. (改为同义句)
Jim has _________ the mountain climbing club for two years.
30．He has already finished the work. （改为否定句）
He ________ finished the work ________.
31．She has already come back from Hong Kong.（改为一般疑问句）
________ she come back from Hong Kong ________?
32．The children have never done that before.（改为反意疑问句）
The children have never done that before, ________ ________?
33．Has Tina arrived in London yet?（作否定回答）
________, ________ ________.
四、单句选词填空
34．Tina ____________ (has been to/has been in) China for over ten years, so she knows a lot about Chinese
culture.
35．Though Ben has ___________ (never/ever) been to Japan, he knows a lot about that country.36．Have you ___________ (ever/yet) watched this TV show?
37．Lily isn’t here. She ___________ (has been to/has gone to) the school library.
38．Anna ___________ (has gone to/has been to) Sanya once, and she thinks it’s really a beautiful city.
五、汉译英：整句
39．他去过子胥湖很多次。
_____________________________________________
40．你曾经去过长城吗?
__________________________?
41．他在美国已经待了三年。
________________________________________________________________________________________
42．我们中谁也没去过北京。
_____________________________________________
43．我从来没去过迪士尼乐园。
_____________________________________________
