《sleep的過(guò)去式形式通用7篇》
以下是可愛(ài)的小編征途幫大伙兒整理的7篇sleep的過(guò)去式的相關(guān)文章,希望對(duì)大家有一些參考價(jià)值。
sleep過(guò)去式是什么意思 篇1
例句
1.an untroubled nights sleep.
一夜安枕。
2.Inga drifted into a fretful sleep.
因加漸漸睡著了,但睡得并不踏實(shí)。
3.Sleep eluded him.
他無(wú)法入眠。
4.I couldnt sleep last night.
昨天夜里我無(wú)法入睡。
5.Colin drifted off into a fitful sleep.
科林迷迷糊糊,時(shí)睡時(shí)醒。
sleep的過(guò)去式和過(guò)去分詞 篇2
The bed was rumpled where he had slept.
床上他睡過(guò)的地方亂糟糟的`。
Steve took a turn driving while I slept.
我睡覺(jué)時(shí),史蒂夫接著開(kāi)車。
He cant have slept through all that noise.
他不可能在那種鬧哄哄的環(huán)境里睡好覺(jué)。
sleep的過(guò)去式 篇3
準(zhǔn)確獲取對(duì)話中的具體信息,如時(shí)間、地點(diǎn)、人物、數(shù)字、價(jià)錢等,它們?cè)谠囶}中占相當(dāng)大的比例。這類題要求學(xué)生在聽(tīng)清、聽(tīng)懂信息的同時(shí),還要對(duì)所聽(tīng)到的信息做簡(jiǎn)單的計(jì)算、時(shí)間比較、深層推理等。
例1:
At what time does train to Leeds leave?
A. 3:00. B. 3:15. C. 5:00.
錄音原文:
W: Excuse me, could you tell me when the next train to Manchester leaves?
M: Sure. Well, it/'s three now. The next train to Manchester leaves in two hours, but you can take train to Leeds which leaves in fifteen minutes, and then get off at Manchester. It stops at Manchester on the way.
本題考查考生對(duì)話語(yǔ)所揭示信息的分辨能力。在男士的答語(yǔ)中給了三個(gè)時(shí)間,現(xiàn)在是三點(diǎn),下一趟去Manchester的時(shí)間為再過(guò)2個(gè)小時(shí),去 Leeds 的火車是15 分鐘之后,只有第一個(gè)和第三個(gè)時(shí)間才與所問(wèn)問(wèn)題有關(guān)。所以答案為B。
二、理解對(duì)話的主旨大意。
常見(jiàn)的提問(wèn)形式有:What are they talking about? / What are the man and the woman talking about? / What does the passage talk about?等等。對(duì)于此類題若是對(duì)話,則要把對(duì)話雙方聯(lián)系起來(lái)考慮。一般來(lái)說(shuō)更應(yīng)注意第一個(gè)說(shuō)話人所說(shuō)的關(guān)鍵詞語(yǔ),它往往引出一個(gè)話題。
例2:
What are the two speakers talking about?
A. A football player.
B. A football team.
C. A football match.
錄音原文:
W: Do you know that Michael Owen has won France Football/'s Golden Ball Prize?
M: Not a surprise. He has 20 goals this season.
本題考查對(duì)所聽(tīng)對(duì)話主題的把握。對(duì)話的中心談一位球員, 而不是一支球隊(duì)或一場(chǎng)球賽。所以答案為A。
三、推斷對(duì)話發(fā)生的背景、地點(diǎn)及對(duì)話者之間的關(guān)系。
常見(jiàn)的提問(wèn)方式有:Where is... ? /Where does the conversation probably take place? / Where are the two speakers now? /Where is the man going? 和 What/'s the man (woman)? / What/' s the man/'s (woman/'s) occupation? / What/'s the probable relationship between the two speakers? / Who is ... ?等等。對(duì)于此類問(wèn)題要求考生根據(jù)談話內(nèi)容來(lái)揣摩、推斷談話發(fā)生的場(chǎng)所或抓住暗示人物身份與關(guān)系的詞語(yǔ)等,據(jù)此做出正確的判斷。
例3:
What is the relationship between the two speakers?
A. Neighbors. B. Father and daughter.
C. Husband and wife.
錄音原文:
W: Hello.
M: Hello. Lucy. This is John. Look, could you do me a favor? I/'ve tried to phone my wife six times and I can/'t get through. The line is busy all the time. Could you possibly go next door and give her a message?
W: Sure. What do you want to tell Mary?
M: Could you just say I/'ve run into an old friend and I/'m staying with him and not at the hotel. I/'ll give her a ring later.
W: Sure. I/'ll go round now.
M: Thanks a lot, Lucy.
W: Okay. Bye.
M: Bye!
該題考查考生對(duì)談話者之間的關(guān)系進(jìn)行判斷。根據(jù)對(duì)話中的語(yǔ)氣及內(nèi)容,我們不難判斷此題的答案為A。
四、理解領(lǐng)會(huì)對(duì)話的觀點(diǎn)、態(tài)度及意圖
常用的提問(wèn)方式有:What does the man (woman) think of ... ? / How does the man (woman) feel about... ? 等等。聽(tīng)這類試題我們首先要判斷兩個(gè)人的態(tài)度是否相同。如果不相同,我們要分清每個(gè)人對(duì)這件事情的看法,千萬(wàn)不能夠混淆。另外說(shuō)話人的態(tài)度是通過(guò)語(yǔ)氣、語(yǔ)調(diào)等的變化體現(xiàn)出來(lái)的,因此,聽(tīng)的時(shí)候要做出正確的判斷。
例4:
6. How does the man feel about David/'s way of sleeping?
A. It/'s effective. B. It/'s strange. C. It/'s the best.
7. How many hours does David sleep a day?
A. Four. B. Six. C. Seven.
8. What does the woman suggest at the end of the ][talk?
A. People should develop a habit like David/'s.
B. People need longer hours of sleep.
C. People have different sleeping habits.
錄音原文:
M: How come David is always so full of energy.
W: He has a strange but highly effective way of sleeping.
M: What is that?
W: He takes a short sleep for an hour every six hours and has a total of four hours/' sleep each day.
M: Where did he get that strange idea?
W: He read from a book which said it was the best way of human beings and he believed that.
M: How many hours do you sleep a day?
W: I need at least seven hours. I once tried to follow David/'s example. But it never worked out of me.
M: If I sleep during the day, I can never wake up.
sleep的過(guò)去式過(guò)去分詞 篇4
常用短語(yǔ):
1.can do sth in your sleep
睡著覺(jué)也能做某事;做某事很容易。
2.get to sleep
入睡;睡著。
3.to go to sleep
去睡覺(jué)。
4. lose sleep over sth
因某事而睡不著覺(jué)。
5.to put sb to sleep
讓某人睡覺(jué)。
sleep的過(guò)去式是什么呢 篇5
習(xí)語(yǔ)
1.can do sth in your sleep
睡著覺(jué)也能做某事;做某事很容易。
2.get to sleep
入睡;睡著。
3.to go to sleep
去睡覺(jué)。
4. lose sleep over sth
因某事而睡不著覺(jué)。
5.to put sb to sleep
給某動(dòng)物實(shí)施安樂(lè)死。
sleep的過(guò)去式 篇6
【關(guān)鍵詞】睡眠剝奪;功能磁共振成像;執(zhí)行控制;行為抑制; 自身對(duì)照研究
中圖分類號(hào):B842.3 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1000-6729(2008)011-0816-05
執(zhí)行控制由兩個(gè)部分組成,一是自動(dòng)反應(yīng),二是行為抑制[1]。執(zhí)行控制功能是人體的一項(xiàng)重要功能,是人體趨利避害的一種手段[2-4]。睡眠剝奪對(duì)認(rèn)知功能的影響是多方面的[5-7],但其究竟是怎樣影響執(zhí)行控制的,其生理機(jī)制還有待于進(jìn)一步探討。
認(rèn)知心理學(xué)研究發(fā)現(xiàn),與額葉皮質(zhì)緊密相關(guān)的執(zhí)行功能是人認(rèn)知功能的核心,而控制功能即反應(yīng)抑制與監(jiān)控功能是其最基本的成份[2]。在過(guò)去的研究中,人們常用Go/No-go作業(yè)來(lái)評(píng)定執(zhí)行控制功能[1,7]。這一測(cè)驗(yàn)要求被試對(duì)測(cè)驗(yàn)中的一類刺激作出反應(yīng)(Go刺激),而對(duì)另一類刺激不反應(yīng)(No-go刺激)。
由于功能磁共振成像(functional magnetic resonance imaging,fMRI)的無(wú)創(chuàng)性和高分辨、直觀等優(yōu)點(diǎn),使其在大腦功能活動(dòng)的研究中具有重要的地位[8]。本文采用fMRI對(duì)受試在睡眠剝奪條件下完成Go/No-go作業(yè)進(jìn)行對(duì)比,探討睡眠剝奪對(duì)執(zhí)行控制功能的影響。
1 對(duì)象與方法
1.1對(duì)象
選取首都師范大學(xué)二年級(jí)碩士生14名,年齡20-27歲,平均為24歲。入選標(biāo)準(zhǔn):男性,健康,右利手,裸眼視力或矯正視力正常。經(jīng)嚴(yán)格篩選并記錄1周睡眠,以自編睡眠行為調(diào)查問(wèn)卷測(cè)查,結(jié)果表明睡眠習(xí)慣良好,睡眠/覺(jué)醒規(guī)律正常。無(wú)喝咖啡、茶及抽煙等習(xí)慣。瑞文測(cè)驗(yàn)[9]顯示所有受試IQ>100。均自愿參加實(shí)驗(yàn),并填寫(xiě)知情同意書(shū),在實(shí)驗(yàn)結(jié)束后給予適當(dāng)?shù)氖茉囐M(fèi)。
1.2方法
1.2.1 Go/No-go測(cè)驗(yàn)
采用系列隨機(jī)呈現(xiàn)的左右箭頭,每個(gè)刺激呈現(xiàn)的時(shí)間為200ms,刺激間隔時(shí)間為800ms。測(cè)驗(yàn)采用block設(shè)計(jì),共包括5個(gè)休息block和4個(gè)任務(wù)block,每個(gè)block開(kāi)始時(shí)提示呈現(xiàn)3秒,整個(gè)block持續(xù)時(shí)間為36s。在每個(gè)任務(wù)block中,No-go刺激占總刺激的1/3,如圖1所示。在1、3任務(wù)block要求靶刺激為左箭頭,非靶刺激為右箭頭;在2、4 任務(wù)block中正好相反。測(cè)驗(yàn)中要求受試對(duì)靶刺激反應(yīng),在保證正確的前提下盡快做答。在休息block中,要求受試注視屏幕中心的固定標(biāo)記“+”。
1.2.2測(cè)驗(yàn)程序
在正式測(cè)驗(yàn)前受試對(duì)Go/No-go作業(yè)進(jìn)行練習(xí),保證反應(yīng)正確率>95%。
磁共振掃描分兩次進(jìn)行,一次在正常睡眠后12小時(shí),一次在36小時(shí)睡眠剝奪后,受試參加掃描的順序進(jìn)行了隨機(jī)平衡。兩次掃描均在晚上20:00進(jìn)行,掃描之間的間隔為三周。正常睡眠和TSD期間均有主試監(jiān)督,以防止受試睡眠。測(cè)驗(yàn)期間受試不允許離開(kāi)實(shí)驗(yàn)室。
fMRI掃描在總醫(yī)院核磁共振檢查室進(jìn)行。研究采用GE公司3.0T Signa LX 磁共振成像系統(tǒng),使用標(biāo)準(zhǔn)正交頭線圈采集磁共振信號(hào)。先取20層橫軸面SE T1WI作解剖定位圖像,層厚5mm,間隔1.5mm。然后采用單次激發(fā)梯度回波平面成像(GRE-EPI)序列,在與T1WI同樣的層面上進(jìn)行血氧水平依賴(blood oxygenation level-dependent,BOLD)功能磁共振掃描,掃描參數(shù)為:TR=2000ms,TE=30ms,反轉(zhuǎn)角=90°,F(xiàn)OV=256 mm×256mm,層厚=5mm,間隔=1mm,矩陣=64×64,層數(shù)=20層。最后使用快速擾相梯度回波(FSPGR)序列行橫斷面連續(xù)136層覆蓋全腦的三維掃描。在掃描過(guò)程中觀察并記錄受試者的心率和呼吸頻率。
1.3統(tǒng)計(jì)方法
1.3.1行為學(xué)數(shù)據(jù)分析
由于技術(shù)問(wèn)題導(dǎo)致1名受試的行為學(xué)數(shù)據(jù)未能正確采集,共有13名受試的數(shù)據(jù)。行為學(xué)數(shù)據(jù)測(cè)量指標(biāo)主要包括正確擊中率(對(duì)Go刺激的正確反應(yīng))、正確反應(yīng)時(shí)、錯(cuò)誤反應(yīng)率(對(duì)No-go刺激的錯(cuò)誤反應(yīng))。采用SPSS11.5 for windows軟件進(jìn)行配對(duì)t檢驗(yàn)。
1.3.2 fMRI數(shù)據(jù)分析
fMRI數(shù)據(jù)采用AFNI軟件進(jìn)行預(yù)處理和統(tǒng)計(jì)參數(shù)分析[10]。數(shù)據(jù)分析分為兩步:個(gè)體數(shù)據(jù)分析和組分析。首先對(duì)功能影像數(shù)據(jù)進(jìn)行平面內(nèi)頭部運(yùn)動(dòng)校正,然后進(jìn)行頭動(dòng)校正(所有受試者的頭動(dòng)偏移均未超過(guò)2mm)。使用3dtshift來(lái)調(diào)整由于層面采集順序?qū)е碌膶娱g同步差異,再以5mm的半高全寬(FWHM)為平滑核進(jìn)行高斯濾波做圖像平滑處理以減少空間噪聲,然后用3dcalc命令進(jìn)行數(shù)據(jù)標(biāo)準(zhǔn)化。標(biāo)準(zhǔn)化后的腦功能數(shù)據(jù)使用3dDeconvolve進(jìn)行通用線性模型分析,計(jì)算信號(hào)變化百分比(以曲線下面積AUC%來(lái)表達(dá))[11]。以空間標(biāo)準(zhǔn)化后的SPGR圖像將功能數(shù)據(jù)標(biāo)準(zhǔn)化到Talairach空間并以5mm的FWHM進(jìn)行空間平滑。組分析采用單樣本t檢驗(yàn)及配對(duì)t檢驗(yàn)。顯著性水平定為單樣本t檢驗(yàn)P
2 結(jié)果
2.1睡眠剝奪前后Go/No-go作業(yè)時(shí)行為學(xué)和生理反應(yīng)數(shù)據(jù)比較
表1顯示,睡眠剝奪后正確擊中率下降(t=2.38,P
2.2 fMRI測(cè)量結(jié)果
單樣本t檢驗(yàn)結(jié)果顯示受試在完成Go/No-go任務(wù)時(shí)大腦前扣帶回(ACC)、頂葉和枕葉皮質(zhì)等腦區(qū)的血氧水平依賴(BOLD)信號(hào)增加。與靜息狀態(tài)相比,36小時(shí)的睡眠剝奪誘導(dǎo)出了正性和負(fù)性BOLD信號(hào)(信號(hào)變化的百分比), ACC及右側(cè)舌回皮層的BOLD信號(hào)在睡眠剝奪后顯著下降;活動(dòng)增加的腦區(qū)包括額上、下回皮質(zhì)等。與正常狀態(tài)相比,36小時(shí)睡眠剝奪后前扣帶回皮層活性顯著減低。右側(cè)額上回的腦區(qū)、右側(cè)顳上回的腦區(qū)以及楔葉的腦區(qū)激活程度增加(P
3 討論
睡眠剝奪對(duì)人體的認(rèn)知功能產(chǎn)生了很重要的影響。隨著睡眠剝奪時(shí)間的延長(zhǎng),執(zhí)行控制功能出現(xiàn)了下降[1,6-8,11]。在本次研究中選用晚20:00進(jìn)行測(cè)驗(yàn),可以排除生物節(jié)律對(duì)認(rèn)知功能的影響[12-13]。
本研究發(fā)現(xiàn),受試在兩項(xiàng)行為學(xué)反應(yīng)指標(biāo)上有顯著性差異。這些差異表明,睡眠剝奪對(duì)機(jī)體抑制功能的影響是確實(shí)存在的。完全睡眠剝奪可能的結(jié)果使一些作業(yè)在經(jīng)過(guò)充分的訓(xùn)練后就很少依賴于前額葉皮質(zhì)的功能,這可能也是反應(yīng)正確率下降很少的重要原因。對(duì)于為什么受試在完全睡眠剝奪期間做出更多的錯(cuò)誤操作而非錯(cuò)誤遺漏,一個(gè)可能的解釋是他們?yōu)榱朔磻?yīng)速度而犧牲了正確率。隨著睡眠剝奪時(shí)間的延長(zhǎng),受試的警覺(jué)性下降,可利用的注意資源減少,導(dǎo)致執(zhí)行控制功能受損[1,5,14]。
本研究顯示完全睡眠剝奪后與執(zhí)行控制作業(yè)密切相關(guān)的腦區(qū)主要有前扣帶回、頂葉皮質(zhì)、前額葉皮質(zhì)、楔葉和小腦等。在功能影像的研究中,前扣帶回的活動(dòng)與行為抑制密切相關(guān)[1,8,15]。在本研究中前扣帶回活動(dòng)減低,這表明36小時(shí)的睡眠剝奪已經(jīng)引起了執(zhí)行控制功能的下降。睡眠剝奪后行為抑制功能的下降與前扣帶回功能活動(dòng)的下降有關(guān),這與行為學(xué)的結(jié)果一致。根據(jù)喚醒水平下降假說(shuō),長(zhǎng)時(shí)間覺(jué)醒后受試喚醒水平下降,隨之而來(lái)的是可利用的腦力資源下降[14,16]。當(dāng)腦力資源低于認(rèn)知作業(yè)的要求時(shí),就會(huì)出現(xiàn)工作績(jī)效的下降。
隨著睡眠剝奪時(shí)間的延長(zhǎng),前額葉皮質(zhì)的活動(dòng)增加,這種功能活動(dòng)的增加是機(jī)體功能代償?shù)囊环N重要體現(xiàn)[8,14]。前額葉皮質(zhì)的過(guò)度激活表明隨著腦力資源的下降,前額葉皮質(zhì)出現(xiàn)了功能代償。功能代償是大腦特有的功能之一,這也是維持認(rèn)知作業(yè)的重要原因之一[5,14]。完全睡眠剝奪期間,即使受試可以注意到刺激信息并且能夠?qū)φ_刺激進(jìn)行正確反應(yīng),但是他們很難抑制不正確反應(yīng)。這樣,操作性設(shè)置可能考慮裝載安全衛(wèi)士用以防止錯(cuò)誤和事件的發(fā)生,這些結(jié)果是睡眠剝奪損害了個(gè)體執(zhí)行控制功能的結(jié)果。
睡眠剝奪對(duì)于認(rèn)知的影響是一個(gè)持續(xù)變化的過(guò)程。在睡眠剝奪過(guò)程中,認(rèn)知功能的負(fù)向變化是持續(xù)存在的[1]。隨著睡眠剝奪過(guò)程的深入,認(rèn)知功能的損害也越來(lái)越嚴(yán)重。在睡眠剝奪的影響下,人體為了適應(yīng)相應(yīng)的應(yīng)激狀態(tài),在主要參與執(zhí)行控制的腦區(qū)前扣帶回功能下降的同時(shí),前額葉皮質(zhì)參與了機(jī)體功能代償。這是人體對(duì)于外界刺激的一種反應(yīng),可以用功能磁共振成像的方法來(lái)進(jìn)行測(cè)量。但是否反應(yīng)抑制主要依賴于注意系統(tǒng)或者抑制系統(tǒng)獨(dú)立于注意系統(tǒng)作用仍然有待研究。并且,雖然現(xiàn)有研究已經(jīng)表明執(zhí)行控制與顯著的前扣帶回功能紊亂有關(guān),但是否其他類型的抑制功能也受其影響仍然有待研究。
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sleep的過(guò)去式形式 篇7
It was the first time in his life that hed slept out of doors.
那是他有生以來(lái)第一次露宿。
Steve took a turn driving while I slept.
我睡覺(jué)時(shí),史蒂夫接著開(kāi)車。
You look as though you slept badly.
你好像沒(méi)睡好覺(jué)。
We both slept right through the storm.
我們兩人睡得很沉,渾然不知有暴風(fēng)雨。
We often slept under the stars.
我們經(jīng)常在夜空下露宿。
The children slept in a loft in the upstairs bedroom.
孩子們睡在樓上臥室里的躍層上。