Most scientists believe that water doesn't exist on the surface of the moon.

多数科学家认为,月球表面不存在水。

That department has ceased to exist.

那部门已不复存在。

Man cannot exist without air.

没有空气人就不能生存。

The old lady exists only on rice coffee and bread.

老太太仅靠咖啡面包生活。

We existed on a diet of rice.

我们靠吃大米过活。

They can't exist on the money he's earning.

他们靠他挣的那点钱无法维持生活。

On his retirement the post will cease to exist .

他退休后这个职位就会撤掉。

The charity exists to support victims of crime.

设立这个慈善机构是为了援助罪案受害者。

Few of these monkeys still exist in the wild.

这些猴子野生的已为数不多了。

The problem only exists in your head, Jane.

这个问题不过是你的想象，简。

Does life exist on other planets?

其他行星上有生命吗？

I was barely existing.

我勉强维持生计。

I exist from one visit to the next...

我的生活就是一个接一个的访问。

Research opportunities exist in a wide range of pure and applied areas of entomology...

纯理论昆虫学和应用昆虫学的众多领域都存在着研究机会。

He thought that if he couldn't see something, it didn't exist...

他认为自己看不见的东西就不存在。

Perfect things do not exist.

完美无缺的东西是没有的.

Problems also exist in agriculture.

农业也存在着一些问题.

Literature does not exist in some timeless absolute.

文学不能存在于一个不受时间限制的绝对条件之下.

Man cannot exist without oxygen.

人没有氧气就不能生存.

He is always imagining dangers that don't exist.

他总是想着那些其实并不存在的危险.

Such people do not exist.

这样的人是不存在的.

There exist many sources of energy both potential and kinetic.

存在着许多势能和动能的能源.

When the conditions exist , go ahead ; when they don't exist , then create them and go ahead.

有条件要上, 没有条件, 创造条件也要上.

Does life exist on Mars?

火星上有生命吗?

It is possible that such cases exist.

盖有之矣.

He argued that ideas do not exist independently of the language that expresses them.

他论证说,思想不会独立存在于用以表达的语言之外.

Carbon steels exist in three stable crystalline phases.

碳素钢含有3种稳定的结晶状态.

It's in the underdeveloped eastern region of the country that the biggest problems exist.

最大的问题存在于这个国家贫穷落后的东部地区.

Does life exist on other planets?

其他行星上有生命吗？

用作不及物动词S+～(+A)

1. He is the greatest poet who ever existed.
   他是古今最伟大的诗人。
2. Such people do not exist.
   这样的人是不存在的。
3. Do you believe that God exists?
   你相信有神的存在吗?
4. So poor they can hardly exist.
   他们穷得几乎无法生存了。
5. They were so poor that they did not live but merely existed.
   他们穷得只能算生存,不能算生活。
6. The Roman Empire existed for several centuries.
   罗马帝国存在了好几个世纪。
7. The two sides have reached a partial agreement , but several differences still exist between them.
   双方达成了部分协议,但他们之间仍存在着一些分歧。
8. A life free from all worry just doesn't exist.
   无忧无虑的生活就是不存在。
9. Contradictions exist everywhere.
   到处都有矛盾。
10. The work will continue after we have ceased to exist.
    我们不在人世之后,这一工作仍将继续下去。
11. Racism still exists to varying degrees.
    种族主义仍不同程度地存在着。
12. There exist many sources of energy both potential and kinetic.
    存在着许多势能和动能的能源。
13. There always exists a force of attraction between two bodies.
    两个物体间永远存在着引力。

exist by( v.+prep. )

靠…生活 live by sth
exist by sth/v-ing

I exist by what I think and I can't stop myself from thinking.

我靠我之所思生存,因此我不能停止思想。

In the old days his family existed by begging.

在旧社会,他们一家靠乞讨度日。

exist in( v.+prep. )

存在于…中 live in sth
exist in sth

No one exists in a vacuum.

没有一个人是生活在真空中的。

Salt exists in many things.

许多东西里都有盐分。

Lime exists in many soils.

许多土壤中都含有石灰。

Strange ideas existed in his mind.

他脑子里有一些奇怪的想法。

Crime and poverty still exist in big cities.

犯罪和贫困在大城市里仍然存在。

exist on( v.+prep. )

靠…生活 live upon sth
exist on sth

She existed only on milk.

她只能靠喝牛奶活命。

The horse exists on vegetable food.

马靠植物性食物生活。

They cannot exist on such low wages.

靠这样低的工资他们无法生活。

She exists on very little.

她生活很艰苦。

动词+～

• exist">chemical compounds exist存在化合物
• exist">circumstances exist情况存在
• exist">democracy exist存在民主
• exist">famine exist存在饥饿
• exist">free trade exist存在自由贸易
• exist">freedom exist存在自由
• exist">government exist政府存在
• exist">Nazism exist存在纳粹主义
• exist">starving people exist存在饥饿的人们
• exist">strong ideas exist存在古怪的想法

～+副词

• exist%20actually">exist actually现实地存在
• exist%20everywhere">exist everywhere普遍存在
• exist%20happily">exist happily生活得幸福
• exist%20hard">exist hard艰难地生存
• exist%20really">exist really确实存在
• exist%20still">exist still仍然存在

～+介词

• exist%20as">exist as以…形态而存在
• exist%20between">exist between在…之间存在
• exist%20by">exist by靠…为生
• exist%20for">exist for为…而存在
• exist%20from">exist from自…就有
• exist%20in">exist in存在于…之中
• exist%20on">exist on靠…为生
• exist%20on%20food">exist on food靠食物维持生命
• exist%20under">exist under在…下存在
• exist%20with">exist with与…共存
• exist%20without">exist without没…而不能生存

• The man called father might still exist though there were no child.

  出自：J. S. Mill

• Plays..formed a large..part of such literary pastime as existed.

  出自：G. Saintsbury

v.(动词)

1. exist的基本意思是“存在,生存”。作“存在”解时主要指可以被感知的事物以某种状态存在,这种存在多为客观的,强调的是存在的真实性。作“生存”解时主要指人或其他生物依赖某物在地球上存活,此时只表示“存活”,而不表示“过生活”。
2. exist多用作不及物动词。
3. exist常与介词by或on连用,表示“生存的手段或方法”。
4. exist相当于表示存在的动词be,应置于引导词之后,主语之前,即主谓倒装。

1. exist有时有“在逆境中生活，仅能活命”的意思。

   Some people in some poor countries receive wages that allow them to exist but not to live.
   有些贫困国家的人民的收入只能勉强维持生计。

2. exist与subsist区别：subsist指“继续存在”，而exist指“存在”。

v.(动词)

exist by, exist on

这两个短语都可以表示“靠…生活”。其区别是：

exist by指“生存的手段”,即“靠…(抽象的)手段生存”,其后常接行为、职业等抽象名词或动名词。例如:

You cannot exist by this idea.你不能光靠这种想法生活。

In the old days his family existed by borrowing.过去,他一家靠借债度日。

exist on指“赖以生存的事物”,即“靠…(具体的)食物等生存”,其后常接食物、收入、薪金等名词。例如:

She exists on bread.她靠面包度日。

He exists on ten dollars a week.他每周靠10美元过活。

exist, be, live

这三个词的共同意思是“生存,存在”。其区别在于:exist指事物存在的客观现实,强调真实性。例如:

God does not exist.上帝并不存在。

be属普通用词,与起引导作用的there连用时,与exist完全同义,有时带有个人信念的色彩。例如:

There exist〔are〕 bears in the zoo.动物园里有熊。

live指有生命、活着,表示“活下去”时可与exist换用。例如:

Live and learn.活到老,学到老。

We cannot live〔exist〕 without food and water.没有食物和水我们就不能生存。

v.(动词)

这个问题已经存在几周了。

误 The problem has been existed for weeks.

正 The problem has existed for weeks.

析 exist是不及物动词,不可用于被动结构。

那样的事是从来没有过的。

误 Nothing like that has ever existed in the world.

正 Nothing like that has ever existed.

析 exist本身就有“存在于世上”的意思,因此,其后不用再接in the world。

• ☆ 1600年左右进入英语，直接源自法语的exister；最初源自古典拉丁语的exsistere，意为存在，出现。