1. liberty [ˈlɪbəti]

n.自由，自由权；冒昧行为

the freedom to live as you wish or go where you want

参考例句：

1. He stood for the cause of liberty and justice. 他为自由和正义的事业而奋斗。

2. You are at liberty to do as you please. 你可以随意行事。

2. federal [ˈfedərəl]

adj.联盟的；联邦的；(美国)联邦政府的

relating to the central government , and not to the government of a region , of some countries such as the United States

参考例句：

1. Switzerland is a federal republic. 瑞士是一个联邦共和国。

2. The schools are screaming for federal aid. 那些学校强烈要求联邦政府的援助。

3. harness [ˈhɑ:nɪs]

n.马具；类似马具的装备；vt.给上马具

a piece of equipment , with straps and belts , used to control or hold in place a person , animal or object

参考例句：

1. He paid ten dollars for the new harness. 他花十美元买了这件马具。

2. I harness the horse to the cart. 我把马套在车上。

4. halt [hɔ:lt]

n.停住，停止，暂停；vt.(使)停住，(使)停止；vi.停止；立定；踌躇，犹豫

to ( cause to) stop moving or doing something or happening

参考例句：

1. When the children's play got too noisy, their mother called a halt. 当孩子们的游戏过于吵闹时，他们的母亲叫他们停下来。

2. No one can halt the advance of history. 没人能阻挡历史的前进。

5. planet [ˈplænɪt]

n.行星

an extremely large round mass of rock and metal , such as Earth , or of gas , such as Jupiter , which moves in a circular path around the Sun or another star

参考例句：

1. Neptune is the furthest planet from the sun. 海王星是离太阳最远的行星。

2. Rubbish, however, is only part of the problem of polluting our planet. 然而，垃圾只是我们这个星球的污染问题的一个方面。

6. draft [drɑ:ft]

vt.起草，作...的草稿；n.草稿，草图，草案

a piece of text , a formal suggestion or a drawing in its original state , often containing the main ideas and intentions but not the developed form

参考例句：

1. He's now revising the first draft of his essay. 他目前正修改他的文章初稿。

2. The draft of this article has been done。这篇文章已经定稿。

7. invisible [ɪnˈvɪzəbl]

adj.看不见的，无形的

impossible to see

参考例句：

1. The air is full of millions of invisible germs. 空气中充满了许多看不见的细菌。

2. Many stars are invisible without a telescope. 许多星辰不用望远镜便看不见。

8. peninsula [pəˈnɪnsjələ]

n.半岛

a long piece of land which sticks out from a larger area of land into the sea or into a lake

参考例句：

1. Dalian is in the south of the Liaodong Peninsula. 大连位于辽东半岛南部。

2. Korean peninsula lies to the west of Japan. 朝鲜半岛在日本以西。

9. finding [ˈfaɪndɪŋ]

n.发现，发现物；调查的结果

a piece of information that is discovered during an official examination of a problem , situation or object

参考例句：

1. The finding makes some sense. 该发现具有一定的意义。

2. That's an encouraging finding. 这是一个鼓舞人心的发现。

10. housing [ˈhaʊzɪŋ]

n.房屋，住宅；住房建筑；外壳，外罩

buildings for people to live in

参考例句：

1. Do you think our housing sales will turn around during this year? 你认为今年我们的住宅销路会好转吗？

2. The housing sales have been turning down since the summer. 入夏以来，房屋的销售量日趋减少

11. fruitful [ˈfru:tfl]

adj.有收获的，富有成效的

producing good results

参考例句：

1. Our return with fruitful results to the city surprised them. 我们满载而归回到城里，这使他们很是惊奇。

2. The work will be more fruitful under this plan.按照这一方案，做这工作将更有成效。

12. sack [sæk]

n.袋子，劫掠；vt.解雇，劫掠，把...装入袋子

a large bag made of strong cloth , paper or plastic , used to store large amounts of something

参考例句：

1. They made him pay for his offence by giving him the sack. 他们解雇了他，从而使他因自己的过错而受到了惩罚。

2. If you're late again tomorrow,you'll get the sack!如果你明天再迟到，那就卷铺盖走吧!

13. disgust [dɪsˈgʌst]

n.使厌恶，使反感；vt.恶，反感

a strong feeling of disapproval and dislike at a situation or person's behaviour , etc .

参考例句：

1. The food at the hotel filled him with disgust. 旅馆的食物使他作呕。

2. My immediate reaction was just disgust. 我当时的第一反应就是反感。

14. drain [dreɪn]

n.排水沟，阴沟；消耗，负担；vi.排去，放干；vt.喝光，耗尽；使流出；排掉水

If you drain something, you remove the liquid from it, usually by pouring it away or allowing it to flow away, and if something drains, liquid flows away or out of it

参考例句：

1. Drain off the rest of the wine from this barrel.把桶里剩余的酒排出去。

2. First, you have to drain the container of all the old oil. 首先，你得从油箱中把所有的陈油都抽去。

15. experienced [ɪkˈspɪəriənst]

adj.有经验的；经验丰富的，熟练的

having skill or knowledge because you have done something many times

参考例句：

1. Experienced seamen will advise you about sailing in this weather. 有经验的海员会告诉你在这种天气下的航行情况。

2. Perhaps you and I had better change over; you are more experienced. 也许我们的工作还是对换一下好，你比我更有经验。

16. carrier [ˈkæriə(r)]

n.运货人；带菌者；运输军队的交通工具

a person or thing that carries something

参考例句：

1. The airplane lifted from the aircraft carrier. 飞机从航空母舰上起飞。

2. I applied for the job as a mail carrier. 我申请邮差的工作。

17. toward [tə'wɔ:d]

prep.对于，关于，接近，将近，向，朝

In the direction of

参考例句：

1. Suddenly I saw a tall figure approaching toward the policeman. 突然间我看到一个高大的身影朝警察靠近。

2. Upon seeing her, I smiled and ran toward her. 看到她我笑了，并跑了过去。

18. operator [ˈɒpəreɪtə(r)]

n.（机器、设备等的）操作员；电话接线员

someone whose job is to use and control a machine or vehicle

参考例句：

1. He is a computer operator. 他是个电脑操作员。

2. The telephone operator connected us. 话务员给我们接通了电话。

19. dumb [dʌm]

adj.哑的；不会说话的；笨的；愚蠢的

permanently or temporarily unable to speak

参考例句：

1. She is very kind to the dumb children. 她对哑童非常好。

2. It was dumb of you to say that. 你说这种话太愚蠢了。

20. waken [ˈweɪkən]

vi.醒来；vt.弄醒

to ( cause to) wake from sleep

参考例句：

1. We must waken the people to the dangers facing our country. 我们必须使人们认识到我们国家面临的危险。

2. What time are you going to waken him? 你准备什么时间叫醒他？