首页英语词典halfhalf的意思

half

英 [hɑːf] 美[hæf]

英英释义词组搭配考试真题实用场景例句

近义词equal division fifty bisection part percent

反义词

n. 一半；半场；半学年
adv. 一半地；部分地
adj. 一半的；不完全的；半途的
n. (Half)人名；(阿拉伯)哈勒夫；(德)哈尔夫；(英)哈夫

基本词汇高频词CET6考研TEM4CET4

词态变化

复数: halves;

中文词源

half 半，一半

可能来自PIE*skel,砍，劈，词源同scale,clone,cleave.即一劈两半，并不一定要求等分。

英英释意

1. one of two equal parts of a divisible whole;: "half a loaf"; "half an hour"; "a century and one half"

2. in various games or performances: either of two periods of play separated by an interval

英文词源

half: half: [OE] Half comes from prehistoric Germanic *khalbaz, which also produced German halb, Dutch half, and Swedish and Danish halv. If, as some have suggested, it is connected with Latin scalpere ‘cut’ (source of English scalpel and sculpture) and Greek skóloph ‘spike’, its underlying meaning would be ‘cut, divided’.
half: Old English half, halb (Mercian), healf (W. Saxon) "side, part," not necessarily of equal division (original sense preserved in behalf), from Proto-Germanic *halbaz "something divided" (cognates: Old Saxon halba, Old Norse halfr, Old Frisian, Middle Dutch half, German halb, Gothic halbs "half"), perhaps from PIE (s)kel- (1) "to cut" (see shell (n.)). Noun, adjective, and adverb all were in Old English.

Used also in Old English phrases, as in modern German, to mean "one half unit less than," for example þridda healf "two and a half," literally "half third." The construction in two and a half, etc., is first recorded c. 1200. Of time, in half past ten, etc., first attested 1750; in Scottish, the half often is prefixed to the following hour (as in German, halb elf = "ten thirty"). To go off half-cocked in the figurative sense "speak or act too hastily" (1833) is in allusion to firearms going off prematurely; half-cocked in a literal sense "with the cock lifted to the first catch, at which position the trigger does not act" is recorded by 1750. In 1770 it was noted as a synonym for "drunk."

考试真题

The millennials ( ' , 千禧一代) who will soon make up half the workforce in rich countries were raised from nursery school onwards to work in groups.

Almost half of those surveyed said their companies were either in the middle of restructuring or about to embark on ( ' , 开始) it; and for the most part, restructuring meant putting more emphasis on teams.

The result is falling water tables ( ' , 地下水位) in countries with half the world's people, including the three big grain producers—China, India and the U.S.

During the second half of the 20th century, grain prices rose dramatically several times.

Two and a half centuries on, most countries impose some sort of tax on alcohol and tobacco.

They found that the majority of both kids and adults opted for a half-sized portion when combined with a prize.

Or maybe the reward of a half-sized portion could be a half-sized dessert to be claimed only on a future date.

Most kids and adults don't actually feel hungry when they eat half of their meal.

If we replaced half of our administrative staff with classroom teachers, we might actually get a majority of our classes back to 20 or fewer students per teacher.

Both kids and adults felt satisfied with only half of their meal portions.

There have been half-hearted but well-publicized efforts by some food companies to reduce calories in their processed foods, but the Standard American Diet is still the polar opposite of the healthy, mostly plant-based diet that just about every expert says we should be eating.

That was nothing though, compared to Germans, Italians, and the French, who stayed up around an hour and a half later on various days throughout the summer to watch the Cup.

Since fewer than half of Americans say they cook at an intermediate level and only 20% describe their cooking skills as advanced, the crisis is one of confidence.

Russians, for example, began to wake up about a half-hour later each day after President Vladimir Putin shifted the country permanently to winter time starting on October 26.

Isn't it a bit weird that spending it should happen in half a blink ( ' , 眨眼 ) of an eye? Doesn't a wallet—that time-honoured Friday-night feeling of pleasing, promising fatness—represent something that matters? But I'll leave the economics to the experts.

Brits stayed up a half-hour later to watch it, and then they woke up earlier than usual the next morning thanks to summer nights, the phenomenon in which the sun barely sets in northern countries in the summertime.

Central heating was present in every upper-and middle-class home by the second half of the 19th century.

Sales in 2009 could be barely half of that.

Half a century later GM is a typical example of poor management

their production capacity has shrunk to less than half of the previous year

They are subdivided into half a dozen sections

More than half of their time is spent directing traffic and writing parking tickets.

But at the same time, nearly half of U.S. carbon emissions come from heating, cooling and powering our homes, offices and other buildings.

The closest that Herpin came to resting was to sit in a rocking chair and read a half dozen newspapers.

Over half teenagers interviewed said they read more than ten books a year.

well, I contacted his office half an hour ago, and his secretary said he was out for lunch until 2:

And in the first part of the lesson, the first half hour, the man who runs the class will go though some particular part of the car, and we'll learn about it

Partly as a consequence of this limited time, over half of all American homes now have microwave ovens

It's only 799, half the usual price and it's very tasty.

Half of our managers are women.

According to data released in January 2017, 56 percent of bills are paid online, which means that just under half of payments still rely on delivery services to be completed.

All had the same number of calories over the day, but half had breakfast, while the other half did not.

Almost half of those surveyed said their companies were either in the middle of restructuring or about to embark on 开始 it; and for the most part, restructuring meant putting more emphasis on teams.

Around half of ocean heat intake since 1865 has taken place since 1997, researchers report online in Nature Climate Change.

Female applicants to postdoctoral positions in geosciences were nearly half as likely to receive excellent letters of recommendation, compared with their male counterparts.

He was trapped under a beam about 10 feet below the surface for nearly an hour and a half.

Isn't it a bit weird that spending it should happen in half a blink of an eye?

Mail delivery service is still responsible for the completion of almost half of payments.

One of the press operators arrived an hour and a half late.

One study recruited 200 obese adults to take part in a 16-week-long diet, where half added dessert to their breakfast, and half didn't.

Roughly half of all federally-convicted animal fighters only get probation(缓刑).

She also knew from previous work conducted on birds and dolphins that these animals put half of their brains to sleep at a time so that they can rest while remaining alert enough to avoid predators.

since fewer than half of Americans say they cook at an intermediate level and only 20% describe their cooking skills as advanced, the crisis is one of confidence.

The "millennials" who will soon make up half the workforce in rich countries were raised from nursery school on wards to work in groups.

They found that female applicants were only half as likely to get outstanding letters, compared with their male counterparts.

When he was about half a mile out from the dark, he felt a bit tired.

While bullying is parents' greatest concern over all, nearly half of low-income parents worry their child will get shot, compared with one-fifth of high-income parents.

Nearly half of high-earning, college-graduate parents enrolled their children in arts classes before they were 5, compared with one-fifth of low-income, lesseducated parents.

Coal prices also are low, owing to over-supply and the scaling-down of demand, especially from China, which burns half of the world's coal.

Within just the past five years, I have noticed parents returning to a belief that teenagers need the guidance of elders rather than the liberal, anything goes mode of child-rearing that became popular in the second half of the 20th century.

The average Norwegian is better off than the average US citizen, but contributes about half as much to climate change.

Spending fell by 10% in the first half of the year.

Full-time employees who do have paid vacation days only use half of them on average.

Fewer than 4% of countries are responsible for more than half of the world's greenhouse gas emissions.

Almost half of graduates--those who go on to earn less--will have a portion of their debt written off.

There is a lot of support at Yale, to an extent, after a while, there is too much support, he said, half-joking about the countless resources available at the school.

The other half will have to wait, as authorities of America's Federal Aviation Administration ( ' , FAA) and National Transportation Safety Board work out what went wrong.

Just half a dozen holiday-makers have reached orbit since then, for similarly astronomical price tags.

It has sent half a dozen passengers into space.

In July, a sister craft of the crashed spaceplane was reported to be about half-finished.

For all their troubles, the United States’ 3,500 institutions were flooded with more than half a million students from 193 countries last year.

You know: half French, half American.

Declaring that one country is better than another in the way that it treats more than half its citizens means relying on broad strokes and generalities.

Consumers in developed countries throw away nearly half of their food purchases because they tend to buy in excessive quantities

survey, about half the teens polled said that their cell phone hadimproved their communication with friends.

Researchers in one study in Tokyo found that more than half of junior high school students used their phones to exchange e-mails with schoolmates more than 10 times a day

Each burning season in the Amazon, fires deliberately set by frontier settlers and developers hurl up almost half a billion metric tons of carbon a year, placing Brazil among the top five contributors to greenhouse gases in the world.

The average American spends at least eight and a half hours a day in front of a screen.

Former George Washington University president Stephen Trachtenberg estimates that a typical college uses its facilities for academic purposes a little more than half the calendar year.

So far, Google has scanned more than 10 million titles from libraries in America and Europe - including half a million volumes held by the Bodleian in Oxford.

By 2025 at the latest, about half the voters in America and most of those in western European countries will be over 50—and older people turn out to vote in much greater number than younger ones.

More than half of them were involved in inheritance disputes.

In the process he uncovered numerous lost works, almost half of which were written by African-American women.

The illness is dangerous, because it is involved in half of all automobile accidents.

Half of the methane in the atmosphere is from animals

A scientific team is studying the thinking ability of eleven and half months old children.

About half of them are unavailable on the market.

Cut the fee by half for this year

Researchers at Cambridge University have found that nearly half of the social networking sites don't immediately delete pictures when a user requests they be removed.

"And yet that happens every day in the video game world," Farley told reporters during a press conference Friday. "I was a main character in Fallout 4, a character by the name of Kellogg, and I never knew that I was doing vocal recording for that game thr

A wandering mind! By one estimate, people daydream through nearly half of their waking hours?

About half of all pregnancies globally are unintended.

Almost half of graduates—those who go on to earn less—will have a portion of their debt written off.

Almost half of the sites didn't get a passing grade and only 18 percent got an A or B.

As one person ironically put it in the comments section of Schwartz's online article, "As I was reading this very excellent article, I stopped at least half a dozen times to check my email.

But now a systematic review and analysis of studies by Canadian researchers found that not only does pasta not cause weight gain, but three meals a week can help people drop more than half a kilogram over four months.

But the other half of the name represents another ingredient, less infamous (名声不好的), perhaps, but also strangely potent: the kola nut.

But the steel shells of hundreds of the ships cracked in the icy north Atlantic, and 12 broke in half and sank.

Compared with other groups, I think the numbers in this group, at those 65 schools, are something like just barely more than half of the black male athletes graduate at all.

Fewer than 4% of countries are responsible for more than half of the world's greenhouse gas emissions.

Half of your brain stays alert and prepared for danger when you sleep in a new place, a study has revealed.

Half were instructed to repeat out loud what they were looking for and the other half kept their lips 30 sealed.

They have painted half of the cows with eyes and left the other half as normal.

It looks like it一after all, 2012 was the tipping point when more than half of Americans began owning smartphones.

It pays laid-off workers up to half of their previous wages while they look for work.

It's hardly surprising that over half a million workers suffer from work related mental health conditions.

It's no surprise, then, that more than half of American adults don't get the 7 to 9 hours of shut-eye every night as recommended by sleep experts.

More of them, though, will skip those calculations altogether and just power through the holidays into 2017: More than half of American workers don't use up all of their allotted vacation days each year.

Nearly half of high-earning, college-graduate parents enrolled their children in arts classes before they were 5, compared with one-fifth of low-income, less-educated parents.

Once we recognize that these things happen to us, we are half way to doing something about them.

Over the next year and a half investigators will test the various strains of salt-tolerant rice they've bred.

Overall, the study found half the films and TV shows had no Asian speaking characters and more than one-fifth of them had no black characters with dialogue.

Spurred on by funding policies, half of European research articles had international co-authors in 2007.

The other half will have to wait, as authorities of America's Federal Aviation Administration FA and National Transportation Safety Board work out what went wrong.

They lost around half a kilogram over an average follow-up of 12 weeks.

Those involved in the clinical trails on average ate 3.3 servings of pasta a week instead of other carbohydrates, one serving equaling around half a cup.

We can make a very good estimate from the fossil record that humans probably evolved naked skin around a million and a half years ago and meanwhile they mostly lost their coat of fur.

We're still in the exploratory stages of this project, although what's noteworthy is that East Asians on average sleep about an hour and half less each night than North Americans do.

within just the past five years, I have noticed parents returning to a belief that teenagers need the guidance of elders rather than the liberal, "anything goes" mode of child-rearing that became popular in the second half of the 20th century.

After running hundreds of tests, the researchers noted that the monkeys would go for the higher values more than half the time, indicating that they were performing a calculation, not just memorizing the value of each combination.

Almost half of that winds up in landfills, and up to 12 million tons pollute the oceans.

At last they had seen a half-written letter in the pile in which my husband had given his new telephone number to a friend.

But during the next week, set a goal of at least a mile and a half per run.

But I haven't finished even half of it.

But the amount of time spent in reading each session has declined, from closer to an hour or more to closer to a half hour per session.

But unlike school friends, 16-year-old Sarah is not spending half-term resting.

By next year, half of the calls we receive will be scams (欺诈).

California has lost half its big trees since the 1930s, according to a study to be published Tuesday and climate change seems to be a major factor (因素).

Dinner ended only after we had a clear understanding of at least half a dozen such facts.

Fares for the senior /disabled customers senior citizens 65 and older and disabled customers may ride for half the regular fare.

Gin spent five months in early 2015 exploring the most remote corners of this area, which sits on the edge of the Amazon rainforest, with half its population of only 250, 000 living in its capital, Cayenne.

Half of all college students change their major at some point.

Half of the workers say their boss doesn't accept it, and only 35 percent say it's tolerated.

He wrote many children' s books, nearly half of which were published in the 1990s.

I don't think I want to spend a year and a half out there on my own.

I have read half of the english novel, and I'll try to finish it at the weekend.

If you are time poor, you need run for only half the time to get the same benefits as other sports, so perhaps we should all give it/running a try.

In fact, half of the 6, 000-7, 000 languages spoken around the world today will likely die out by the next century, according to the united nations educational, scientific and cultural organization UNESCO.

Indeed, they made only half as many errors as those wearing their own clothes on the stroop test one way of measuring attention.

More than half (53 percent) have breakfast alone and nearly half (46 percent) have lunch by themselves.

Nasa is worried about two things: recovery time once astronauts return home, and, more importantly, how to maintain strength and fitness for the two and a half years or more that it would take to make a round-trip to mars.

Not more than a half-hour walk, I thought.

Over a third of mums felt they needed more training and around half said they missed going out with friends.

Plus, having the doctor tell us to get two and a half hours of exercise a week doesn't really help our motivation much.

She still had to run more than half a mile and had only a few minutes left.

She was giving me an odd look-half puzzled, half intent.

Some 60, 000 novels were published during the victorian age, from 1837 to 1901; today a casual reader might be able to name a half-dozen of them.

The battle lasts little more than half an hour, in which time around 50, 000 kilograms of tomatoes have been thrown at anyone or anything that moves, runs, or fights back.

The median number(中位数) of speakers is a mere 6000, which means that half the world's languages are spoken by fewer people than that.

The workers were not better organized, otherwise they would have accomplished the task in half the time.

The world is full of half-filled stamp albums and unfinished models, each standing as a monument to someone's passing interest.

Then, after two and a half years, the mother drove the young panda away.

They conduct between 30 and 40 workshops annually, focusing on half a dozen different plays, mostly for corporations, but also for government agencies.

This is compared to half of students who had looked for a job by this time two years ago.

This is how much temperatures would rise by 2100 even if nations live up to the initial Paris promises to reduce carbon emissions; this rise could still put coastal cities under water and drive over half of all species to extinction.

We choose this hotel because the price for a night here is down to $20, half of what it used to charge.

With each day, increase the distance by a half mile.

Within two years it had topped out at almost fourteen hundred feet and was more than half a mile across.

At puberty, however, the brain shuts down half of that capacity, preserving only those modes of thought that have seemed most valuable during the first decade or so of life.

The growth in public money for academic research has speeded the process: federal research grants rose fourfold between 1960 and 1990, but faculty teaching hours fell by half as research took its toll.

Not surprisingly, up to half of all doctoral students in English drop out before getting their degrees.

Equally unsurprisingly, only about half end up with professorships for which they entered graduate school.

Although more than half of Harvard undergraduates end up in law, medicine or business, future doctors and lawyers must study a non- specialist liberal-arts degree before embarking on a professional qualification.

The second half of the 20th century saw a collection of geniuses, warriors, entrepreneurs and visionaries labour to create a fabulous machine that could function as a typewriter and printing press, studio and theatre, paintbrush and gallery, piano and radio, the mail as well as the mail carrier.

That whispered message, half invitation and half forcing, is what most of us think of when we hear the words peer pressure.

One reason for the persistence of this pyramid of production is that for the past half-century, much of the world's media culture has been defined by a single medium - television - and television is defined by downloading.

In Britain, more than half of public-sector workers but only about 15% of private-sector ones are unionized.

As of 2005, there were almost half a million professional social scientists from all fields in the world, working both inside and outside academia.

An old saying has it that half of all advertising budgets are wasted-the trouble is, no one knows which half.

The London agents Stirling Ackroyd recently identified enough sites for half a million houses in the London area alone，with no intrusion on green belt.

Half a century of town and country planning has enabled it to retain an enviable rural coherence, while still permitting low-density urban living.

The question of GDP and its usefulness has annoyed policymakers for over half a century.

At the end of adolescence, however, the brain shuts down half of that capacity, preserving only those modes of thought that have seemed most valuable during the first decade or so of life.

But with homework counting for no more than 10% of their grades, students can easily skip half their homework and see very little difference on their report cards.

Formerly it lasted three days, but by the 1980s it more commonly lasted a day and a half.

Haddad and Lewis are concerned that more than half the state-government boards are less than 40 percent female.

Half of the pens would deliver an electric shock when clicked.

Half of them found a toy; the other half discovered the container was empty一and realized the tester had fooled them.

In 2015, the US Forest Service for the first time spent more than half of its $5.5 billion annual budget fighting fires——nearly double the percentage it spent on such efforts 20 years ago.

In a Swiss study, researchers sprayed oxytocin into the noses of half the subjects; those subjects were ready to lend significantly higher amounts of money to strangers than were their counterparts who inhaled something else.

More than half of all British scientific research is now published under open access terms: either freely available from the moment of publication, or paywalled for a year or more so that the publishers can make a profit before being placed on general rel

That's only a small share of the total acreage that could benefit, about half a million acres in all, so it will be vital to prioritize areas at greatest risk of fire or drought.

The London agents Stirling Ackroyd recently identified enough sites for half a million houses in the London area alone, with no intrusion on green belt.

The move to renewables is picking up momentum around the world: They now account for more than half of new power sources going on line.

The second half of the 20th century saw a collection of geniuses, warriors, entrepreneurs and visionaries labour to create a fabulous machine that could function as a typewriter and printing press, studio and theatre, paintbrush and gallery, piano and rad

词组搭配

a —— and a half

(informal)used to indicate that one considers a particular person or thing to be an impressive example of their kind

(非正式)非常出色的，非一般的，典范的

Aunt Edie was a woman and a half.
伊迪姑姑是女人中的典范。

at half cock

Aunt Edie was a woman and a half.
伊迪姑姑是女人中的典范。

half the battle

Aunt Edie was a woman and a half.
伊迪姑姑是女人中的典范。

half a chance

(informal)the slightest opportunity

(非正式)一点点机会，很小的机会

given half a chance he can make anything work.
只要给他一点点机会，他什么都可以做到。

half an eye

given half a chance he can make anything work.
只要给他一点点机会，他什么都可以做到。

the half of it

[usu. with negative](informal)the most important part or aspect of something

(非正式)最重要的一部分（或一方面）

you don't know the half of it.
你还不了解最重要的情况。

half one (two 等)

informal way of saying &B{half past one (two, etc.)}

(非正式)同 &B{half past one （two} 等）

half past one (two 等)

thirty minutes after one (two, etc.) o'clock

一（或两、三等等）点半

half the time

not do things by halves

do things thoroughly or extravagantly

彻底地做事情；大肆铺张地做事情

too —— by half

used to emphasize something bad

太，过于

the idea seems too superstitious by half.
这个想法似乎过于迷信。

by half

By a considerable extent.

以可观程度地

By an excessive amount

过度地

too clever by half.
过于聪明

by halves

In a reluctant manner; unenthusiastically.

不热情地：采取一种勉强的态度；不热情地

in half

Into halves.

成为相等的两半

实用场景例句

Two halves of bitter, please.: 请来两份半品脱的苦啤酒。

No goals were scored in the first half.: 上半场没有得分。

We'll need to reduce the weight by half .: 我们得把重量减轻一半。

I've divided the money in half .: 我把钱平均分成了两半。

The second half of the book is more exciting.: 书的后半部分比较刺激有趣。

An hour and a half is allowed for the exam.: 考试时间为一个半小时。

One and a half hours are allowed for the exam.: 考试时间为一个半小时。

two and a half kilos (2½): 两公斤半

He's constantly on the phone to his girlfriend. We have to go halves on the phone bill which drives me mad.: 他总和女友煲电话粥。令我抓狂的是电话费可是我们俩平摊的。

In Italy they rarely do things by halves. Designers work thoroughly, producing the world's most wearable clothes in the most beautiful fabrics.: 在意大利，人们很少马虎从事。设计师们精益求精，用最美丽的布料制造出世界上最适合穿着的衣服。

Cutting food intake by half is an incredibly difficult thing for anyone to do.: 将进食量减半对任何人来说都是件非常难的事。

The number of 7 year olds who read poorly has increased by half over the past 5 years...: 不识字的7岁儿童的人数在过去5年里增加了一半。

I was worried that my career, my children and my other half might become too much to cope with.: 我担心我的事业、我的孩子们和我的那口子可能会让我应付不过来。

It becomes clear that Montgomerie has a job and half on his hands.: 很显然，蒙哥马利手头有一大堆事情要做。

Poor old Henry, and not half as clever as he'd thought.: 可怜的老亨利，以为自己多聪明。

You're not half the man you think you are...: 你根本不是你自己想象的那种人。

I didn't half get into trouble...: 我遇到了大麻烦。

You don't half sound confident...: 你听起来非常有信心。

All this time I've been half sick about you and why you wouldn't write.: 我一直非常担心你，一直在想你为什么不来信。

He felt half dead with tiredness...: 他已经累得半死不活了。

They are supposed to be here at about half four.: 他们应该在4点半左右到达这里。

I think I got there about four and left about half past.: 我想我是4点钟左右到达那里，大约半个小时后离开的。

'What time were you planning lunch?'—'Half past twelve, if that's convenient.'...: “你打算什么时候吃午饭？”“如果方便的话，12点半。”

She was half Italian and half English.: 她是半意大利半英国血统。

...a half of lager and a sandwich.: 半品脱淡啤酒和一份三明治

The only goal was scored by Jakobsen early in the second half.: 唯一的一粒进球是由雅各布森在下半场刚开始时打进的。

His refrigerator frequently looked half empty...: 他的冰箱里经常半空着。

His eyes were half closed...: 他双眼半闭。

More than half of all households report incomes above £35,000...: 半数以上的家庭申报收入超过35,000英镑。

They need an extra two and a half thousand pounds to complete the project...: 他们还需要2,500英镑才能完成该项目。

half

词态变化

中文词源

英英释意

英文词源

考试真题

词组搭配

a —— and a half

at half cock

half the battle

half a chance

half an eye

the half of it

half one (two 等)

half past one (two 等)

half the time

not do things by halves

too —— by half

by half

by halves

in half

实用场景例句

考试词汇

频率词汇

分类词汇

单词首字母

汉语字典查询

词语词性