VOA慢速英语1500基础单词例句u

under
[(1) below; (2) below the surface of; (3) less than; (4) as called for by a law, agreement or system]
The river flows under the bridge. (1)
The submarine¹ went under. (2)
The book was under 20 dollars. (3)
Such action is not permitted² under the law. (4)

understand
[(1) to know what is meant; (2)to have knowledge of]
I understand what you mean. (1)
He understands chemistry. (2)

unite
[to join together]
The new president will try to unite all parties in support of his program.

universe
[all of space, including planets³ and stars]
Do you know why the universe is expanding?

university
[a place of education that usually includes several colleges and research organizations]
Her sons are students at different universities.

unless
[(1) except if it happens; (2) on condition that]
I will not go, unless the rain stops. (1)
I will come to your house unless it rains. (2)

until
[(1) up to a time; (2) before]
She said she would wait for me until three o'clock. (1)
We cannot start until everyone arrives. (2)

up
[to, in or at a higher position or value]
We will walk up the stairs.

urge⁴
[(1) to advise strongly; (2) to make a great effort to get someone to do something]
He urged⁵ the governor⁶ to think carefully before signing such a bill. (1)
The speaker urged the crowd to take control of the university. (2)

urgent⁷
[needing an immediate⁸ decision or action]
She said urgent action is necessary.

us
[(1) the form of the word "we" used after a preposition⁹; (2) or used as an object of a verb]
He said he would write to us. (1)
They saw us yesterday. (2)

use
[(1) to employ for a purpose; (2) to put into action]
We use electricity to light our house. (1)
He used a piece of glass to cut the ropes that tied our hands. (2)

usual
[(1) as is normal or common; (2) as is most often done, seen or heard]
They watched all the usual television shows. (1)
We left for work at our usual time. (2)

1 submarine   

n.潜水艇；adj.水底的，海底的；vt.用潜艇袭击；vi.滑入...底下

参考例句：

• Within a short time,everything on the submarine was buttoned up.不一会儿，潜水艇内所有的东西都扣紧了。
• The submarine signaled for help.潜水艇发出求救的信号。

2 permitted   

允许( permit的过去式和过去分词 )； 许可； 许用

参考例句：

• Radios are not permitted in the library. 图书馆内不许使用收音机。
• Entrance is permitted only on production of a ticket. 出示门票才可进入。

3 planets   

行星( planet的名词复数 )； 地球（尤指环境）

参考例句：

• Does life exist on other planets? 其他行星上有生命吗？
• the planets of our solar system 太阳系的行星

4 urge   

n.冲动，推动力，迫切的要求；vt.驱策，力劝，力陈，推动；vi.强烈要求

参考例句：

• He has an urge to become a film star.他非常希望成为电影明星。
• We should constantly urge ourselves on to study hard.我们要经常鞭策自己努力学习。

5 urged   

v.力劝( urge的过去式和过去分词 )；强烈要求；推进；驱策

参考例句：

• She urged him to stay. 她力劝他留下。
• Urged on by the PM the police tried to end the strike. 在首相的敦促下，警方力图终止罢工。 来自《简明英汉词典》

6 governor   

n.统治者，地方长官(如省长，州长，总督等)

参考例句：

• The governor was an expert at fencing with reporters.这位州长是搪塞新闻记者的能手。
• He was elected governor of the state of California.他当选为加州州长。

7 urgent   

a.紧急的，急迫的，紧要的

参考例句：

• He asked to see the manager for something urgent. 他有急事求见经理。
• A part of this urgent task was allotted to us. 这项紧急任务的一部分分给了我们。

8 immediate   

adj.立即的；直接的，最接近的；紧靠的

参考例句：

• His immediate neighbours felt it their duty to call.他的近邻认为他们有责任去拜访。
• We declared ourselves for the immediate convocation of the meeting.我们主张立即召开这个会议。

9 preposition   

n.介词

参考例句：

• You should cancel this preposition in the sentence.你应该删去句子中的这个介词。
• We use different preposition to talk about time,days,months and seasons.我们用不动的介词来谈论时间，日，月和季节等。