前言:中文期刊網精心挑選了英語重點知識范文供你參考和學習,希望我們的參考范文能激發你的文章創作靈感,歡迎閱讀。
英語重點知識范文1
因為知識,我們進入太空,我們延長了預期壽命。更多的是因為知識,我們超越生死,不再懷疑。下面小編給大家分享一些高中英語翻譯知識,希望能夠幫助大家,歡迎閱讀!
高中英語翻譯知識11.挨家挨戶from
door to door
例:醫生挨家挨戶上門巡訪,省去了許多老年人去醫院的麻煩.(save)
Doctors’ door-to-door visits save many old people’s trouble of going tohospital.
2.愛不釋手
can’t bear standing part with / putting it down / leaving it aside
例:這部有關第一次世界大戰的歷史小說引人入勝,我簡直愛不釋手。(so … that)
The historical novel about / describing World War I / the First World Waris so attractive that I can’t bear (to do …) / stand parting with it / puttingit down (back, aside ) / leaving it aside .
3.安于現狀
be satisfied with reality / present situation
例:我們高中生應該有遠大的志向,不應該只滿足于現狀。(satisfy)
We senior high students should have great ambition and (should) not besatisfied with reality / present situation.
4.擺脫煩惱
get rid of / to be free from worries
例:得知他心情不好,我建議他與朋友聊聊天,以去除煩惱。(suggest)
Knowing (that) he is in a bad mood, I suggest his chatting with friends toget rid of / to be free from worries.
5.彼此埋怨be
to blame each other
例:遇到困難的時候,我們需要的不是彼此埋怨,而是相互幫助。(not …but)
When (we are) in difficulty / When we meet with difficulties, what we needis not to blame each other but to help each other.
6.別無選擇have
no choice but to do
例:當時,那位出租車司機別無選擇,只能求助于游客。(choice)
At that time the taxi driver had no choice but to turn to the tourist /traveler (for help).
7.不得而知remain
unknown
例:瑪麗是否參加這次英語晚會尚不得而知。(remain)
It remains unknown whether Mary will attend the English Evening.
8.不辭而別
leave without saying good-bye
例:我們對他的不辭而別感到很驚訝。(without)
We were greatly surprised that he has left without saying goodbye.
9.不可估量beyond
measure
例:盡管付出的努力不可估量,但那些偏遠山城都已通車,這讓全國人民感到無比自豪。(accessible)
Although the efforts made are beyond measure, those remote mountainouscities have been accessible to cars, which makes all the Chinese people / thewhole nation feel very proud / full of pride.
10.不甚感激appreciate
it very much
例:如果你一收到消息就能給我答復的話,我將不勝感激。(the moment)
I would appreciate it very much if you could reply to me / give me a replythe moment you receive the message.
11.不懈努力great
effort
例:盡管各國政府已做出了不懈的努力,但要應對日益嚴重的全球性氣候變暖問題還需制定更有效的措施。(despite)
Despite the great effort made by governments, more effective measuresshould be made to deal with the ever worsening problem of global warming.
12.不假思索
without hesitation
例:吉姆不假思索地回答了老師的問題。(hesitation)
Jim answered his teacher’s question(s) without (any) hesitation.Jimanswered the question(s) asked by his teacher with no hesitation.
13.不盡如人意be
far from satisfactory
例:這個地區的經濟發展得很快,可使某些市民的素質還不盡如人意。(quality)
The economy of this area develops very fast but some citizens’ qualitiesare far from satisfactory.
14.不容忽視should
not be ignored / neglected
例:這個事故使我們意識到安全問題不容忽視。(realize)
This accident made us realize that safety problems should not beignored.
例:防火意識不容忽視,不然的話會對生命和財產造成不可估量的損失。(neglect)
(The sense of) Fire protection should not be neglected (We should notneglect fire protection), or great damage might be caused to the lives andproperty.
15.不知所措be
/ feel at a loss
例:網絡在我們日常生活中起了舉足輕重的作用,以至于當不能上網時人們感到無所適從。(loss)
Internet plays such an important role in our daily life that people feel ata loss when they can’t go online / surf the Internet / don’t have access to theInternet.
例:消費者對冷凍食品失去信心的事實令生產廠家一籌莫展。(loss)
The fact that consumers have lost confidence in frozen food makes themanufacturers at a loss.
16.徹夜未眠
didn’t fall asleep last night / be awake all night
例:只喝一杯咖啡就會使我整晚睡不著。(keep)
Drinking only a cup of coffee will keep me awake all night.
例:昨晚聽到他喜歡的足球隊獲勝的消息,他興奮得徹夜未眠。(too … to …)
Hearing the news that his favorite team won the match, he was too excitedto fall asleep last night.
17.催人淚下people
are moved to tears
例:昨晚殘疾人的演出非常成功,讓觀眾們感動得流下了眼淚。(so … that…)
The performance put up by the disabled / The disabled people’s performancelast night was so successful that many people were moved to tears.
18.寸步難行can
do nothing without
例:電腦已觸及到每個人的日常生活,難怪有人說當今世界不懂電腦,就寸步難行。(no wonder)
The computer has touched on everyone’s daily life.No wonder someone saysthat you can do nothing without the knowledge of computer / its knowledge.
19.大為驚嘆be
greatly amazed / impressed
例:這些十八世紀的油畫保存得這樣好, 使參觀者大為驚嘆。(so … that)
These eighteenth-century oil paintings have been / are preserved so wellthat the visitors are greatly amazed / impressed.
20.放任自流let
him be
例:父母經常面對這樣的選擇:要么做他們認為有利于孩子發展的事情,要么對其放任自流。(either)
Parents often faced the choice that either they did what they felt was goodfor the development of the child or they just let him be.
高中英語翻譯知識2常用翻譯核心句型
the more ~ the more~
A good teacher is the one from whom the more we need academically, the moreshe can supply.
一個好的老師是這樣一個人,我們對她越有學業方面的需求,她能提供的越多。
It is ~ that ~
It is not just books that can't be judged by their covers,and so it is withpresents.
不能根據外表判斷的不僅是人,禮物也一樣。
too ~ to ~
Our boss is too narrow-minded to endure different opinions.
我們老板心胸狹窄,無法容忍不同看法。
not ~enough to do ~
She is not old enough to make sense of the real meaning of the proverb-Time and tide wait for no man.
她太小,無法理解歲月不等人這句諺語的真正含義。
not ~ but ~
A masterpiece is not something that can conform into an expectation butsomething that has to be an expression from the heart.
杰作不是為了迎合某種預期的東西,而是內心真情的表露。
rather than
Ducks can swim by instinct rather than intelligence.
鴨會游泳,不是靠聰明,而是靠本能。
Not until~
Not until the director persuaded him did he agree to play a role of thedoctor.
直到導演說服了他,他才同意演那個醫生的角色。
unless ~
You will have difficulty in understanding the problem unless it isexplained and analyzed from the historical perspective.
除非這問題是從歷史的觀點來分析和解釋,否則你理解會有困難。
It has never occurred to/struck me that~
It has never occurred to me that a person who has experienced ups and downsof life should believe such a ridiculous trick.
我從未想到一個經歷人生起伏的人竟相信這荒唐的詭計。
the moment ~/ the instant ~
The contract will come into effect the instant it is signed.
這項合同一經簽署即開始生效。
It won't be long before ~
It won't be long before you know that having a good attitude is half thebattle.
不久后你就會明白,擁有好的態度就是成功的一半。
once ~
Once promised, he will surely be given a remote-controlled car as abirthday present.
一旦得到承諾,他一定會得到一兩遙控汽車作為生日禮物。
only when ~
Only when the test-oriented education is switched into the quality-orientededucation are the chances that the students will develop their versatileabilities.
只有應試教育轉變成了素質教育,學生們才有可能發展多方面的能力。
so ~ as to do ~
Will you be so kind as to pull me through the difficult time?
你這樣善良, 能幫我渡過難關嗎?
so ~ that ~
The book is so instructive that it has become a must-read.
So instructive is the book that it has become a must-read.
這書很有教育意義,已成為學生的必讀之書。
~ as ~
Lose money as he did, he got a lot of experience, which contributed to hissuccess in life.
雖然他失去了錢,但他得到了許多經驗,這促成了他人生的成功。
It must be pointed out that~
It must be pointed out that difficulties can bring out a person's bestqualities.
必須指出,困難能顯示一個人的最佳素質。(bring out a person's best qualities)
be just about to do ~ when~/ be close to doing ~ when~/ be on the point ofdoing ~ when~
I was on the point of buying that piano when my wife reminded me that thisamount of money was for my son's tuition.
I was close to buying that piano when my wife reminded me that this sum ofmoney was for my son's tuition.
I was just about to buy that piano when my wife reminded me that this sumof money was for my son's tuition.
我剛要買那架鋼琴時,突然我太太提醒我這筆錢是付我兒子學費的。
not so much ~ as ~
It is not so much with their wishes as with their actions that they canshape the future.
他們打造未來與其用希望還不如用行動。
prefer to do~ rather than do~
To face whatever you might prefer to hide rather than acknowledge requirescourage
要面對你寧可隱藏也不承認的任何事需要勇氣。
more ~ than ~
Being obliged to leave the stage due to his illness, he has an emotion,which is more of regret than attachment.
因病得離開舞臺時,他有著一種情感, 這種情感與其說是留戀,還不如說是遺憾。
There is no doing ~
There is no denying that bad things do happen to us sometimes.
不可否認的是,有時候不好的事情確實發生在我們身上。
It can't be denied that~
It can't be denied that he has a gift for music however lazy he is.
無法否認的是他對音樂有天賦,不管他是多么的慵懶。
There is no doubt that~
There is no doubt that he will win the election by a large majority
毫無疑問他會以多數票贏得競選。
so long as ~/as long as~
However inharmonious they look in other people's eye, they can enjoy lifeso long as they love each other.
在別人眼里無論他們看起來是多么的不和諧,只要他們彼此相愛,就能享受生活。
It is no wonder that ~
It is no wonder that children love to visit museums.
孩子們喜歡參觀博物館是不足為怪的。
It is +adj.+of sb.to do~
It is mean of you to tip so little.
你真吝嗇,給這么少小費。
It is +adj./現在分詞+for sb.to do~
As a doctor, it is necessary for you to pay a regular visit to yourpatients, assuring them that your attention is still focused on them.
作為醫生,你定期看望病人,讓他們相信你仍然關注著他們是必要的。
There is no use/point (in) doing~ / It's no good/use doing~
It's no good helping him since he doesn't help himself.
There is no use helping him now that he doesn't help himself.
既然他不爭氣,幫他也沒用。
Not only ~ but also ~
Not only can knowledge help you conquer fear but also it can bring you realpower.
知識不僅能幫助你克服恐懼,也能給你帶來真正的力量。
It must be admitted that ~
It must be admitted that online study is another effective way ofself-improvement.
必須承認網上學習是另一種自我完善的有效方法。
in spite of the fact that
In spite of the fact that the old man doesn't know much, he is warm-heartedand friendly.
雖然那老頭懂得不多,但他熱情、友好。
高中英語翻譯知識31.孤身一人,無親無故be
single and has no friends or relatives
例:雖然她孤身一人,無親無故,但鄰居們都向她伸出了援助之手。(offer)
Though she is single and has no friends or relatives, all the neighborsoffer her help / a helping hand / to help her.
2.固執己見
always stick to one’s own opinion
例:我發現很難與那些一貫固執己見的人合作。(… it …)
I find it (is) hard to cooperate with those who always stick to their ownopinions.
3.刮目相看look
at sb differently / with new eyes / regard sb.in a totallydifferent light
例:他進公司后不久就獨立完成了一項艱巨的任務,同事們對他刮目相看。(so)
He finished a difficult task on his own / independently soon / shortlyafter he entered the company, so his colleagues looked at him differently / withnew eyes / regarded him in a totally different light.
4.毫不費力
have no difficulty / trouble (in) doing sth
例:他們毫不費力第就找到了那位好心人。(difficulty)
They had no difficulty finding the warm-hearted man / person.
5.毫無疑問,不容置疑
There is no doubt that.../ It cannot be doubted that
例:毫無疑問,旅行使人開闊眼界,增長知識。(doubt)
There is no doubt / It can’t be doubted that travelling broadens one’s mindand enlarge / improve / increase one’s knowledge.
6.后悔莫及regret
doing
例:他很后悔失去了獲得獎學金的機會。(regret)
He regretted losing / having lost the chance to win a scholarship.
7.后來居上catch
up with sb
例:上周因為生病我缺了一些課,但是我會努力趕上大家的。(miss)
Because of illness / Being ill last week, I missed some lessons, but I willtry to catch up with others.
8.家喻戶曉/眾所周知As
is known to all, … / It is known to all that
例:眾所周知,成功來自于勤奮,不努力則一事無成。(without)
As is known to all, success comes from hard work / diligence, and nothingcan be achieved without efforts / hard work.
例:眾所周知,他的成功完全是努力的結果。(due to)
It is known to all that his success is entirely / totally / completely dueto his hard work.
9.堅守崗位keep
to one’s post
例:無論風多大、雨多急,警察一直堅守在崗位上。(no matter …)
No matter how hard the rain falls and the wind blows, the police keep totheir posts.
10.竭盡所能do
/ try ones best to do
例:我們應該竭盡所能是城市變得更美麗.(try)
We should try our best to make the city more beautiful.
11.截然不同的觀點
have totally different opinion with us
例:交流時,我們可能會遇到與自己觀點截然不同的人。(likely)
When communicating, we are likely to meet people who have totally differentopinions with us.
12.驚人速度incredible
rate / speed
例:我國到處都是高樓大廈,其發展速度真是驚人。(spring up / incredible)
High-rise apartment buildings have sprung up everywhere in China at anincredible
rate / speed.
13.聚精會神be
absorbed in
例:我在全神貫注地看書,沒有聽到手機在響。(absorb)
I was so absorbed in reading that I didn’t hear my cell phone ringing.
14.困難重重has
great difficulty / be very difficult
例:雖然困難重重,但他父母還是設法及時趕到了上海。(despite)
Despite / In spite of the great difficulty, his parents managed to get to /arrive in / reach Shanghai in time.
15.屢見不鮮appear
so frequently
例:這類事故在媒體上屢見不鮮,應該制定有效措施防止這類事故再次發生。(prevent)
This kind of accident appears on media so frequently that effectivemeasures are
being made to prevent it (from) happening again.
16.抵制誘惑resist
the temptation of
例:在招待會上,他沒能抵抗住那些美食的誘惑,吃了很多。(fail)
He failed to resist the temptation of the delicious food in the receptionand ate a lot.
17.旗鼓相當be
equal to sb in sth
例:雖然他在技巧和經驗上都與我旗鼓相當,但是誰都有可能奪冠。(equal)
Though he is equal to me in skill and experience, either of us is likely towin the
Championship.
18.齊心協力work
cooperatively / with combined efforts
例:只要我們齊心協力,就能很快解決這個技術難題。
So long as / If we work cooperatively / with combined efforts, we will beable to
solve / work out the technical problems.
19.千載難逢a
rare / golden chance
例:既然經濟艙位的票很暢銷,我們應盡快打電話到售票處詢問一下,以免坐失良機。(now that)
Now that the tickets for economy class are popular, we should call thebooking / ticket office to inquires soon as possible,making sure that we won'tmiss / lose the golden chance.
20.日益增長ever
increasing
例:孩子們從小就不得不在學業上競爭,這就給他們帶來了日益增加的精神壓力。(which)
英語重點知識范文2
During the time of the Warring States (475-221 BC), there lived a well-known archer2 named Geng Ying whose art in shooting was excelled by none at his time.
One day, as he was standing3 by the side of the King of Wei, a flock of swan geese were flying over. With confidence, Geng Ying said to the king, "The twang of my bow-string might bring down a bird." The King doubted much. Just then a solitary4 swan goose appeared, low and slow in its flight, sad and dolorous5 in its cry. Instantly Geng Ying bended his bow and forcibly pulled the bowstring. Twang! High up went he shrilling6 sound into the air and down fell the bird to the ground. The king admired with bewilderment. Gang Ying then explained: "The bird was flying low and slow, because it was already hurt; it was crying in a bitter tone, because it had lost its companions. Due to the fact that it was already hurt and sad at heart, the twang of my strong bow, that birds dreaded7 most, startled it. The shrilling sound made its heart beat fast, its wings weak, its balance uneven8. Thus it fell down just as commonly as a man drops his chop-sticks, at the thunder-stroke, at a dinner table." Henceforth comes the idiom "A bird startled by the mere twang of a bow-string", illustrating9 a case where a man who had been previously10 and repeatedly frightened became numb11 and stupefied by a new thing of the same nature not knowing how to face the new situation.
驚弓之鳥
英語重點知識范文3
在電影產業高速發展的時代背景下,電影投資、電影制作、電影發行和放映等各個環節顯現出各種新特點和新變化。
在電影投資領域,電影與資本實現著越來越緊密的合作交融,電影業投融資體系不斷創新發展,從個人投資、版權預售、政府出資到銀行貸款、風險投資、電影基金,再到現在越來越多的影視公司開始積極開拓金融貸款、私募股權融資、上市融資等新型融資模式,長期制約中國電影產業發展的資金問題得到逐步改觀與緩解。
在電影制作領域,在經歷了十年左右的產業化發展和改革之后,中國的電影制片企業出現了明顯的變化,一批不同特色、不同層次、不同類型的制片企業開始活躍在電影界,為制片業的發展繁榮奠定了基礎。在這些企業的精心運作下,一批批各具特色的電影類型片脫穎而出。2013年,《小時代》《北京遇上西雅圖》《致我們終將逝去的青春》等幾部國產電影先后獲得了口碑以及票房佳績。這些沒有宏大敘事,沒有巨資,卻十分貼近目標觀眾需求的“類型電影”在市場屢獲成功,更是標志著中國電影制片市場正日趨成熟。
在電影發行和放映領域,伴隨著數字化和新媒體時代的到來,電影的發行和放映方式都發生著巨大變革。截至2012年底,全國電影銀幕數突破一萬塊,達到13118塊,其中2K數字銀幕超過1.2萬塊,約占91.5%。2012年全年新增銀幕3832塊,平均每天全國新增銀幕10.5塊,且全部為數字影廳。在影院高速發展的大背景下,影院經營管理也更加精耕細作、精益求精。同時,數字電影技術的發展也給觀影體驗帶來極大提升。
在中國電影行業的高速發展的時代背景下,中國電影與海外市場的國際合作與中國電影的“走出去”戰略也成為近年來中國電影市場發展一個重要的話題。此前,小馬奔騰成功收購美國頂級特效公司數字王國;萬達集團收購美國第二大電影院線公司AMC;中方與美國夢工廠合資組建東方夢工廠……這些都被看作是中國電影加強與國際合作,實現中國電影走出去戰略的關鍵性事件。
中國在由電影大國向電影強國努力邁進的征途中,在電影產業發展的進程中,在電影人才培養和儲備方面也呈現出不少問題和矛盾。具體來說,當前電影人才隊伍存在的主要問題有:一是缺乏了解電影特點,懂市場、會經營的管理人才,如職業經理人、職業會計師、職業審計師以及懂得資本運營、財務管理、媒介推廣、項目策劃等方面的人才;二是緊缺既懂藝術又懂技術的高素質復合型人才;三是缺乏既精通外語和國際知識,又精通電影傳播業務的對外經營傳播人才。這三類人才的短缺也成為了我國電影產業化發展過程中的一大瓶頸。
面對這些存在的問題,首先我們需要構建靈活、務實、多元的教育格局。全面加強電影各項專業教育,如電影藝術創作、電影經營策劃、電影院線管理、電影市場營銷推廣等課程教育,幫助學生系統掌握電影項目運作管理的各個流程環節。同時,與國內外著名影視機構合作開展學生的實踐教學活動,例如與影視公司合作微電影攝制、與電影院線公司合作影院假期實習等等,讓學生在課程教學與實踐教學中成長,培養出既懂藝術創作又懂市場管理的高素質復合型人才。
英語重點知識范文4
1. It 作形式主語和it引導強調句的比較
It 作形式主語代替主語從句,主要是為了平衡句子結構,主語從句的連接詞沒有變化。而it引導的強調句則是對句子某一部分進行強調,無論強調的是什么成分,都可用連詞that。被強調部分指人時也可用who/whom。例如:
a) It is a pity that you didn’t go to see the film. 你不去看那場電影真可惜。
b) It doesn’t interest me whether you succeed or not. 我對你成功與否不感興趣。
c) It is in the morning that the murder took place. 謀殺案是在早上發生的。(強調句型)
d) It is John that broke the window. 是John打碎的窗戶。(強調句型)
2. 用it 作形式主語的結構
(1) It is + 名詞 + 從句
It is a fact that … 事實是…
It is an honor that …非常榮幸
It is common knowledge that …是常識
(2) It is + 形容詞 + 從句
It is natural that… 很自然…
It is strange that… 奇怪的是…
(3) It is + 不及物動詞 + 從句
It seems that… 似乎…
It happened that… 碰巧…
It appears that… 似乎…
(4) It + 過去分詞 + 從句
It is reported that… 據報道…
It has been proved that… 已證實…
It is said that… 據說…
3. 主語從句不可位于句首的五種情況:
(1)if 引導的主語從句不可居于復合句句首。
(2)It is said /reported…結構中的主語從句不可提前。例如:
正確表達:It is said that President Jiang will visit our school next week.
錯誤表達:That President Jiang will visit our school next week is said.
(3)It happens/occurs…結構中的主語從句不可提前。例如:
正確表達:It occurred to him that he failed in the examination.
錯誤表達:That he failed in the examination occurred to him.
(4)It doesn’t matter how/whether …結構中的主語從句不可提前。例如:
正確表達:It doesn’t matter whether he is wrong or not.
錯誤表達:Whether he is wrong or not doesn’t matter.
(5)含主語從句的復合句是疑問句時,主語從句不可提前。例如:
正確表達:Is it likely that it will rain in the evening?
錯誤表達:Is that will rain in the evening likely?
4. what 與that 在引導主語從句時的區別
what 引導主語從句時在句時在從句中充當句子成分,如主語.賓語.表語,而that 則不然。例如:
英語重點知識范文5
關鍵詞:中職學校;飯店服務;英語;互動教學
中圖分類號:G712 文獻標識碼:A 文章編號:1672-5727(2012)08-0105-02
中職英語教學現狀
中職學生普遍對英語課缺乏興趣。他們當中多數是中考失利的應、往屆畢業生,在英語學習方面普遍存在的問題是基礎差,詞匯量少,發音不準,表達困難等。語法知識不扎實,閱讀能力有限等因素使學生在閱讀過程中由最初的減少閱讀到后來的遠離閱讀、害怕閱讀,從而形成了惡性循環。課堂上處于消極、被動的學習狀態,沒有積極性和主動性。另一方面,以往的教學方式和語言環境也讓學生缺乏實踐機會,無法融入英語的情境中去。一部分教師認為學生基礎薄弱,對在課堂上與這些學生互動共鳴達到好的效果沒有信心。面對這些問題,教師首先要轉變觀念、改變方法,要為學生創設主動參與和學習的條件和環境,激發學生學習興趣,互動式教學不失為一種行之有效的教學方式。
互動式教學法的內涵與意義
互動式教學法強調語言教學必須以學生為中心,教師創設真實自然的語言環境,提供真實的有意義的語言素材,使學生進行有意義的學習?;邮浇虒W強調師生及學生互相之間討論、交流和溝通。在師生關系上,互動式教學也區別于傳統教學方式,師生關系、教學關系不是單向的,而是互動的。學生在教學活動中從單純的接受者的角色轉變為學習過程的主體,從接受學習變為發現學習、探究學習??傊;邮浇虒W反映了教學過程中教與學的交互反饋和融合,使得教學過程成為一個協調的整體,一個對話的過程、理解的過程。
互動式教學不但發揮了學生的主體性,而且引領學生主體性的方向,互動式教學改變了教師的教學理念,角色轉變調整了教師的教學行為,提高了學生對英語課的接受程度。
互動式教學在
《飯店服務英語》中的應用
互動式教學的實施要體現教師為學生提供豐富的學習材料,創設豐富多彩的課堂活動,如role-play,group activity,game,performance等,讓學生在真實的環境中學會運用語言。
(一)角色扮演
在《飯店服務英語》中,有大量的情景對話,角色扮演能夠極大調動學生的表演欲,在活動中學到知識。在此活動中,教師充當參與者、合作者和引導者的角色。角色扮演是以課堂教學或實習場所教學為舞臺,以課本內容為腳本,以學生創造為動力的綜合性實踐活動。在教學過程中,通常先讓學生觀看一些相關的視頻,了解相關背景以及視頻情景中主人公的表現,然后教師把本課當中的語言點、相關短語和句型教給學生,要求學生在模擬對話中要使用本課的知識點,學生再結合視頻中的情景創作一個情景劇。學生作為戲劇中的演員,在主要內容不變的情況下可以自由發揮,表演結束后,教師給予鼓勵性的點評。例如,在《Seating Guests》這一課當中,學生要把本課的對話(即臺詞)熟記或者自己創作一個新的小對話,在表演的過程中,教師指導他們處理rhythm,intonation,pronunciation,以及body language,eye contact等細節問題,力求情景真實,表演到位。因此學生不僅掌握了本課的知識點,又覺得滿足了自己的表演欲,得到了欣賞與鼓勵,提高了興趣。
(二)在校內實習酒店現場教學
酒店實訓現場教學強調在學校內部的實訓酒店的前廳部、客房部和餐飲部進行授課和講解,由于現場感強,具體的實物和逼真的場景都會讓學生對知識點印象深刻?,F場教學的好處在于,一是學生身臨其境,身心放松;二是感知能力比課堂授課更明顯。學生在此過程中參與了教學活動和模擬訓練,同時得到了現場教師的指點,獲益匪淺。例如,我們在學習《Room Service》這一課時,教師把學生帶到學校的實習酒店,同時帶來了幾樣道具:手推車上擺上幾個盤子,盤子里裝有做好的早點和桃汁,學生見這些教具都進了實習酒店客房部,一下子熱鬧了起來。在現場筆者先介紹了這篇課文的一些語言點和常用語句,并提出來一些注意事項,然后找一位學生作為搭檔演示了給客人送餐的過程。學生分為幾個小組,在經過10分鐘的準備后,依次來完成送餐過程,教師逐一給予點評。在現場教學中,學生不僅接觸電話點餐、送餐,同時對送餐的程序有切身的感受,由于立體感強,他們很快能見識并記住大量的酒店設施,一舉多得,效果明顯。
(三)學習和生活中套用酒店管理模式
酒店服務專業的學生在日常的學習生活中,或者教師在日常的教學活動中不妨借鑒酒店的管理模式,根據不同的部門和學生的不同特點,由英語教師(充當酒店總經理)任命幾名表現突出的學生為部門經理,如Front Office manager,Housekeeping manager,Food& Beverage manager等。他們分管各自的下屬,如 bellboy,receptionist,cashier等歸前廳經理管,waiter,waitress,bartender等歸餐飲部門經理管,學生們會根據自己不同的崗位演繹好自己的角色。他們利用所學的詞匯、句型來表達在酒店的形形的場景中遇到的具體問題,如他們之間如何打稱呼,同事之間的團隊合作,如何向上級轉述客人投訴等。教師可根據學生在各自不同的崗位表現情況給予點評和“提拔”。當然,學生熟悉本崗位的工作后可輪崗,到另外一個部門去體驗。學生在做情境表演以及教師在模擬酒店現場授課的時候,教師(總經理)就按照他們的不同身份去稱呼和指點自己的手下,以此讓他們盡快進入狀態。經過這樣的活動,學生不但掌握了課本上的知識,而且學以致用,還了解了酒店的管理知識和運營模式。
(四)實施靈活多樣的趣味互動教學法
單一的教學法讓人感到乏味,英語課應根據教學要求選擇不同的教學手段。趣味性高的教學更能激發學生的學習興趣,活躍課堂氛圍,英語教學也可以在唱中學,在活動中學,在情境中學,在游戲中學,教師營造語言環境,配以多樣的情景劇,多媒體視聽素材,歌曲,原生電影,或做一些簡單的英文小游戲,寓教于樂,這樣既豐富了教學的多樣性,又增強了學生的對英語學習的興趣。
事實證明,互動式教學在中職英語教學過程中具有非常明顯的效果,其方法也是多種多樣的,應針對具體情況具體對待。只要能最大限度地調動學生的學習興趣,使他們能夠主動參與教學,與教師互動,輕松獲得知識能力,就是一種好的教學方法。以上是筆者在教學過程中積累的一些經驗,或許對其他教師有一定的參考價值。
參考文獻:
[1]束定芳.外語教學改革:問題與對策[J].大學英語,2004(9):32-32.
[2]劉麗華,唐麗霞.交互式教學法在高職英語口語教學中的應用[J].職業技術教育,2010,31(35).
[3]朱薇.淺談中職學校英語趣味教學[J].新課程(教研),2011(3).
[4]鄭艷紅.探討中職生如何快樂學英語[J].職業技術教育,2011(5).
英語重點知識范文6
關鍵詞:預應力束;金屬波紋管;橋梁;質量
Abstract: this article in your Canton railway ping village dual bridge across both guangxi railway continuous beam construction in guizhou as an example, prestressed bridge construction control point, and combined with actual construction site, this project have been put forward for the construction of the control key, the corresponding technical control measures, to provide technical reference for similar project construction.
Key words: quality of prestressed metal bellows beam Bridges
中圖分類號:U448.35文獻標識碼:A文章編號:2095-2104(2013)
1.工程概況
貴廣高速鐵路是鐵路"十一五"規劃的重點項目,起于貴陽北站,途經貴州省貴陽市,黔南布依族苗族自治州的都勻市、三都縣,黔東南苗族侗族自治州的榕江縣、從江縣、黎平縣;廣西自治區柳州市的三江縣、桂林市的龍勝縣、臨桂縣、靈川縣、陽朔縣、恭城縣、賀州市的鐘山縣、八步區;廣東省肇慶的懷集、廣寧、四會,佛山的三水,廣州市,止于新廣州站,正線長度857.300km,銜接西南內陸和華南經濟帶,是一條客貨兼顧、以客為主、完善西部路網布局的區域快速鐵路干線。
坪寨特大橋起點里程DK93+691.66,終點里程DK94+462.32,全長770.66m,為雙線特大橋,設計時速300km/h,預留提速條件,線間距4.8m,牽引類型為電力牽引,坪寨特大橋共有2聯(40+64+40)m連續梁,對應的橋墩編號分別為9#-12#、16#-19#。
其中跨黔桂線連續梁主墩為17#、18#墩,墩身高度分別為14.5m、10m。連續梁梁全長144m,中支點梁高6.05m,跨中梁高3.05m,邊支座中心線至梁端0.75m。梁體為單箱單室、變高度、變截面結構。箱梁頂寬12.2m,底寬6.7m,頂板厚度40cm,底板厚度80~40cm,腹板厚度80~48cm,中心梁高由6.05m漸變到3.05m。在端支點、中支點、中跨共設5個橫隔板,隔板設有孔洞。連續梁共分9個節段,8#節段為合攏段,9#節段為邊跨現澆段。0#塊長9m,中心梁高6.05m,梁底寬6.7m。1#-7#塊長為3m+3.25+3.5m+3×4.25m,梁高由6.05m漸變到3.05m。中、邊跨合攏段長均為2m,梁高3.05m。邊跨現澆段長7.75m,梁高3.05m。懸澆段最重塊為4#塊,重144.332t,懸臂掛籃施工最長梁段為4.25m。
2.控制重點
貴廣鐵路坪寨雙線特大橋跨既有黔桂鐵路連續梁施工,采用懸臂掛籃法,預應力管道采用金屬波紋管。立梁設縱向、橫向、豎向三項預應力,預應力束數量多,管道密集,且各種鋼筋施工對預應力管道安裝干擾性較大等,針對上述諸多因素,為有效保證預應力施工質量,提出了以下預應力施工控制重點:
(1)防止金屬波紋管漏漿阻管的控制,金屬波紋管在制作運輸、儲存和安裝過程中容易變形、開裂、刺穿、接頭多,在鋼筋焊接時對波紋管保護不到位,電火花灼傷、灼穿波紋管,以及在澆筑時搗爛波紋管等,導致混凝土漿進入成孔管道造成管道堵塞。(2)預應力管道線形控制。由于連續梁結構鋼筋數量多、復雜、密集,導致預應力管道安裝困難,線形不易控制,若預應力線形定位偏差大,摩阻系數就大,從而導致預應力損失大。(3)預應力穿束,在預應力鋼紋線穿束時容易將金屬波紋管壁拉下造成穿束困難,甚至壓漿時阻漿。(4)通氣孔的有效保護。由于連續梁施工工序多,各種鋼筋密集,橫、豎向管道通氣孔容易被鋼筋擠壓變形和被砼堵塞,導致通氣孔失塞,管道壓漿困難。(5)預應力管道壓漿質量控制。由于施工工藝、材料、管理上的缺陷問題,導致預應力管道壓漿不密實,壓漿質量差,預應力損失或完全喪失,影響結構的耐久性,甚至會造成結構破壞的嚴重后果。
3.控制措施
3.1防止金屬波紋管漏漿堵管控制措施
(1)金屬波紋管的加工。到場的金屬波紋管必須符合JG/T3013預應力砼用金屬螺旋管的要求,直徑滿足設計要求,壁厚t≥0.3mm,卷制接縫牢固,嚴密不漏漿,外觀無銹蝕、空洞和不規則皺褶,壁內光滑、均勻、無氣泡、裂口、分解變色線及明顯雜質,且具有足夠強度、以便在混凝土的重力作用下保持原有形狀。
(2)金屬波紋管的運輸、吊裝和儲存。波紋管在運輸時必須采用專門的的運輸車,運輸時不得與其他物品混運,防止其在運輸過程中受壓變形;吊裝時采用模板整體吊裝,不得直接在波紋管上拴住兩點吊裝;儲存時下方用木板支墊平整,上方用防雨布覆蓋嚴密,防止支墊不平波紋管變形和被雨水淋濕而銹蝕。
(3)安裝準備工作。波紋管在安裝前必須進行外觀檢查,所有波紋管必須形狀完好,沒有變形、扭曲和砂眼、咬口脫扣、雜質和銹蝕等,否則應予以切除或更換,使用前還必須取樣進行抗變形和抗滲漏試驗。
(4)金屬波紋管的切割。采用砂輪機切割,管口保持齊整,無向管內的毛齒和扁口,嚴禁采用電弧焊切割。切割后必須對每根波紋管切口進行檢查,發現有向內的毛齒和扁口,應進行打磨齊平和校正圓順。
(5)金屬波紋管的連接。金屬波紋管之間的連接采用套管進行連接,連接套管比連接管稍大一個型號,連接套管長度不應小于40cm。將兩根連接管的管頭旋進套管內,接口靠近套管中間部位,盡量密貼,套好后將套管兩端用粘性較好的牛皮膠紙纏繞包裹嚴密、牢實。
(6)錨墊板處金屬波紋管的安裝。波紋管與錨墊板喇叭口相接處,波紋管插入喇叭口的長度不應大于喇叭口的直線長度,用棉紗封堵管口和壓漿孔。
(7)金屬波紋管安裝后的保護。金屬波紋管安裝后防止鋼筋焊接燒傷波紋管,火花落到波紋管上,在波紋管附近進行鋼筋的焊接時,需用后鐵板或厚木板進行隔離;安裝好的預應力金屬波紋管道上不得壓重或踩踏。
(8)金屬波紋管內穿塑料管。在連續梁混凝土澆筑前必須在每根波紋管內穿內襯塑料管,塑料管的外徑比金屬波紋管的內徑小1cm為宜,內襯塑料管應具有一定的強度和柔韌性,保證起到金屬波紋管的內支撐作用,使混凝土澆筑時管道不變形;在混凝土澆筑后初凝前后,將塑料管來后抽動數次。
3.2預應力管道線形控制措施
(1)認真研讀圖紙,按照設計要求,由技術人員和測量人員在模板上測放預應力管道的設計位置,做好線形控制和管道編號標記。
(2)加工定位鋼筋,按照一般直線段不大于60cm一道定位鋼筋來固定波紋管,曲線段應適當加密,特別是起彎點前后、最高點、最低點和接頭位置等處均應增加定位鋼筋,使其定位后不發生移動。
(3)確定預應力管道處結構鋼筋的安裝。先安裝預應力管道下部的結構鋼筋,沿管道控制線鋪設管道,套入結構環向鋼筋,進行管道的架立和定位,后進行預應力管道處其余部位結構鋼筋的安裝和連接。
(4)由于連續梁現澆節段結構鋼筋密集、復雜,對預應力管道的安裝、定位干擾大,為防止安裝順序錯亂造成返工,應在整個施工過程和每個工作面安排技術人員進行指導作業。
(5)加強作業人員職業道德教育,增強其責任心,安排專人進行金屬波紋管的連接、安裝、定位和檢查。
(6)在混凝土澆筑前,應對混凝土作業人員進行技術培訓和交底工作,尤其是搗固工,使其能夠掌握預應力管道周圍的搗固方法和知道預應力管道的位置,搗固時不得將搗固棒直接接觸金屬波紋管,以免搗爛波紋管或波紋管變形。
(7)在進行預應力張拉前,應選擇具有代表性的管道進行管道摩阻系數測試試驗,計算控制應力時摩阻系數應采用試驗測試值。
3.3預應力穿束控制措施
(1)穿束前用壓力水沖洗孔內雜物、觀察有無串孔現象,后用風壓機吹干孔內水份;檢查預應力束外觀質量,查看預應力束展開后是否平順,有無彎折,表面有無裂紋、小刺、機械損傷、銹蝕和油污等。
(2)按照鋼絞線編束要求,每隔1m~1.5m用細鐵絲將整孔鋼絞線綁扎成一束,對每根鋼絞線編號編束并梳絲理順。
(3)將鋼絞線束一端線頭錯開綁扎成梭形,并包裹好或套好梭形罩,緩慢伸進管道,從一端向另一端拖拉就位,防止鋼絞線頭碰撞金屬波紋管壁。中短束(直束L≤60m,曲束L≤50m)由人工穿束,長束和曲束用牽引法。
(4)若整束鋼絞線穿束時困難,可采用先穿過一半數量,后將其余鋼絞線頭錯開呈梭形捆綁在一起,在先穿過的中間選用一根作為牽引線,將剩余鋼絞線穿過管道,以便有效地保護波紋管壁。
(5)若以上方法鋼絞線不能穿過管道時,可采用開窗處理,破除管道被堵塞位置的結構混凝土。
(6)穿束結束后,檢查整個預應力束能否在孔道內自由滑動。
3.4通氣孔的有效保護措施
(1)在結構鋼筋安裝時,安排專人負責檢查通氣管,梳理管道,通氣管盡量從結構鋼筋空隙處穿出來,避免被結構鋼筋擠壓變形。
(2)在通氣管內增設一根硬度較大的塑料管作內襯,防止施工中承受一定壓力時將通氣管堵死;在通氣管口用棉紗或封口膠帶臨時將管口堵死,盡量使通氣管口高出混凝土面,防止水泥漿進入管道。
3.5預應力管道壓漿質量控制
(1)對管道壓漿操作人員進行專門的技術技能培訓學習,使其能夠掌握管道壓漿的基本知識,施工時按照壓漿規程操作。
(2)優化壓漿施工工藝,按照施工準備制漿壓漿補漿檢查流程進行操作。
(3)提高壓漿材料性能。水泥:水泥采用強度等級不低于42.5級的低堿硅酸鹽或低堿普通硅酸鹽水泥(摻合料僅為粉煤灰或礦渣),C3A含量應不大于8%;其余性能應符合GB175的規定。減水劑:摻用高效減水劑,降低水泥漿水灰比,從而降低水泥漿的收縮率、泌水率,并能保障其流動度和可泵性要求。膨脹劑:摻加適量膨脹劑,使漿體硬化后的收縮得到部分補償,不產生或減小水泥漿收縮,增加管道密實度。水泥漿配合比:應通過級配試驗優化后確定,水泥漿強度、收縮率、流動度、泌水率等性能指標滿足規范與設計要求。
(4)管道壓漿。采用由下至上連續壓漿的方法,壓漿過程中,注意壓漿泵、輸漿管內絕不能有空氣混入,防止水泥漿不連續或漿體中有氣泡,壓漿不宜過快,緩慢連續均勻進行,使稀漿和有氣泡漿充分壓出,形成連續穩定的濃漿,方可暫停壓漿。
(5)補漿。壓漿后隨著泌水的排除,管道頂部會產生空隙。這時,采取補漿措施,使管道中空隙填滿,方法是在出漿處設置補漿罐,連通后進行注漿回補,補漿時間應到氣孔連續流出濃漿為止,這種補漿效果較好,可填充管道頂部空隙。
(6)檢查。水泥漿達到設計強度后須進行必要的檢查,檢查合格后及時封閉通氣孔,切除多余外露鋼絞線,澆筑封錨混凝土,使錨具與外露預應力束不受腐蝕。
4.結束語:在連續梁橋施工中,預應力工程是整個工程施工的重點,其預應力筋是連續梁結構中主要的受力承載結構,如何保證預應力管道安裝質量和壓漿質量是結構受力好壞的關鍵,因此我們在施工過程中要做好預應力管道的安裝、壓漿控制工作,安排專人進行全過程施工技術指導,保證其達到構件的設計要求。
參考文獻:
[1]鐵建設【2010】241號高速鐵路橋涵工程施工技術指南
[2]GB/T14370-2007預應力筋用錨具、夾具和連接器