UNIT 4 Look into Science! Lesson 32: Unit Review

[ti:UNIT 4 Look into Science! Lesson 32: Unit Review]
[0:00.000]UNIT 4
[0:01.873]Look into Science!
[0:04.086]Lesson 32
[0:05.447]Unit Review
[0:07.036]Ⅰ. Building Your Vocabulary
[0:10.383]A. Fill in each blank with the proper word or phrase¹ from the list. Use the correct form.
[0:17.646]discover 发现
[0:19.121]taste 尝起来
[0:20.168]examine 检查
[0:21.566]hide 隐藏
[0:22.652]prove 证明
[0:23.713]light 点燃
[0:25.232]B. Find the proper words in this unit.
[0:29.645]C. Fill in the blank with the proper word. The first letter is given.
[0:35.602]D. Complete the passage with the proper words or phrases².
[0:40.643]Ⅱ. Grammar in Use
[0:43.681]Fill in the blanks with the words in brackets³ in their proper tenses.
[0:49.011]Ⅲ. Speaking the language
[0:52.363]Complete the following dialogue.
[0:55.378]Ⅳ. Putting It All Together
[0:58.730]A. Reading comprehension⁴
[1:01.769]Water, Water, Everywhere 水，水，到处都是
[1:04.832]Most things have three states: solid⁵, liquid and gas. 大多数物质有三种形态：固态、液态和气态。
[1:11.078]We can change a solid into a liquid and a liquid into a gas. 固态可以转化成液态，液态可以转化成气态。
[1:16.625]It doesn't matter which of the three states a thing is in, it is still the same thing. 无论这种物质是以什么形态存在，其本质相同。
[1:23.450]Let's think about water to see how this works⁶. 我们以水为例来看这个过程。
[1:27.501]Water is one of those things that exists in three states. 水是以这三种形态存在的物质之一。
[1:32.445]Liquid water is found in many places. 液态水在许多地方都可以看见。
[1:36.111]You can see liquid water coming out of the tap or running in a river. 你可以看到液态水从龙头里流出，在江河里流淌。
[1:41.875]You can see water falling from the sky as rain, snow, or ice. 你可以看到水以雨、雪、冰的形态从空中落下。
[1:47.166]Ice and snow are examples of water in the solid state. 冰和雪都属于固态的水。
[1:52.045]We can change liquid water into solid ice and back again into liquid water. 液态水可以转化为固态的冰，反之亦然。
[1:58.456]We can also turn water into a gas. 水还可以转化为气态。
[2:02.201]In winter, put your wet clothes near the fire, then you can see gas rising from the wet clothes. 冬季，把湿衣服挂在火附近，你就会看到湿衣服上有气体溢出。
[2:10.428]Why? Water changes into a gas. 为什么呢？因为水转化成了气体。
[2:14.456]When you breathe on a mirror, you can see little drops of water on the mirror. 在镜子上呵一口气，你会看到镜子上有小水滴。
[2:19.733]What happens? 发生了什么呢？
[2:21.208]Gas turns into water. 水汽变成了水。
[2:23.251]Is the statement⁷ true (T) or false (F)?
[2:27.790]B. Writing exercise
[2:30.853]You did some experiments in this unit.
[2:33.690]Now try this one: can you make an egg stand upright⁸?
[2:38.229]Try it and write down what happens.
[2:41.009]Do you know? 你知道吗？
[2:42.371]Certainty and Uncertainty⁹ 确定及不确定
[2:45.038]I'm sure/not sure. 我确定/不确定。
[2:47.591]I'm sure/not sure (that/which/why/whether... )... 我确定/不确定（that/which/why/whether引导的从句）……
[2:54.286]Perhaps I'll work in the space program. 或许我会为太空计划工作。
[2:57.463]Maybe you should do this experiment outside. 或许你该在外面做这个实验。
[3:01.151]Maybe you used glue! 或许你用了胶水！
[3:04.102]Sequence 顺序
[3:05.634]First, Brian fills the jar with water and puts the cardboard¹⁰ on top of it. 首先，布赖恩在罐子里注满了水，并把硬纸片放在顶部。
[3:11.364]Then, he puts his hand on the cardboard and turns the jar upside¹¹ down. 然后，他用手按住硬纸片，把罐子翻转了过来。
[3:16.754]Next, he holds the jar above Danny's head. 接着，他把罐子拿到丹尼的头上方。
[3:20.045]Finally, he takes his hand off the cardboard. 最后，他把手拿开。
[3:24.073]The Simple Future Tense 一般将来时
[3:26.513]shall
[3:27.705]I shall wear shorts tomorrow. 明天我要穿短裤。
[3:30.825]Shall we have any classes tomorrow? 明天我们有课吗？
[3:34.116]will
[3:35.400]There will be some showers this afternoon. 下午有阵雨。
[3:38.577]I'll tell them my theory. 我将把我的理论告诉他们。
[3:41.471]Will you be free next week? 下周你有空吗？
[3:43.740]I'm sure I won't lose my way. 我确定我不会迷路的。
[3:47.088]be going to
[3:49.017]Is Danny going to hide an egg in his mouth? 丹尼要把一只蛋藏在嘴巴里吗？
[3:53.329]We are going to do a science experiment in class tomorrow. 明天我们上课时要做一个科学实验。
[3:58.095]I'm not going to get wet. 我不会淋湿的。
[4:00.648]It's going to rain. 要下雨了。
[4:00.648]
[4:00.648]
[4:00.648]

1 phrase   

n.短语，词组；成语，习语

参考例句：

• The phrase was caught on and immediately became popular.这个短语被采用后很快就流行了。
• That's exactly the phrase I was looking for.这就是我一直找的那个短语。

2 phrases   

n.短语( phrase的名词复数 )；成语；说法；乐句

参考例句：

• Sports commentators repeat the same phrases ad nauseam. 体育解说员翻来覆去说着同样的词语，真叫人腻烦。
• Television sports commentators repeat the same phrases ad nauseam. 电视体育解说员说来说去就是那么几句话，令人厌烦。 来自《简明英汉词典》

3 brackets   

n.括弧( bracket的名词复数 )；等级；类别层次；壁架v.把…括在括弧内( bracket的第三人称单数 )；把…归为一类

参考例句：

• Publication dates are given in brackets after each title. 出版日期括于书名后面。
• Put your name in brackets at the top of each page. 把你的名字填在每页上端的括弧内。 来自《简明英汉词典》

4 comprehension   

n.理解，理解力；领悟

参考例句：

• The teacher set the class a comprehension test.老师对全班同学进行了一次理解力测验。
• The problem is above my comprehension.这个问题超出我的理解力。

5 solid   

adj.固体的，结实的，可靠的，实心的；n.固体，实心；adv. 一致地

参考例句：

• Water may change from a liquid to a solid.水可以由液体变为固体。
• I know that James is a solid type of person.我知道詹姆斯是个可信赖的人。

6 works   

n.作品，著作；工厂，活动部件，机件

参考例句：

• We expect writers to produce more and better works.我们期望作家们写出更多更好的作品。
• The novel is regarded as one of the classic works.这篇小说被公认为是最优秀的作品之一。

7 statement   

n.陈述；声明；综述

参考例句：

• The government will put out a new statement tomorrow.政府将于明天发布一项新声明。
• Put down your statement in black and white.把你的话用白纸黑字写下来。

8 upright   

adj.直立的；正直的；adv.挺直着，竖立着

参考例句：

• He stood himself upright.他笔直地站着。
• An upright man is respectable.正直的人是值得尊敬的。

9 uncertainty   

n.易变，靠不住，不确知，不确定的事物

参考例句：

• Her comments will add to the uncertainty of the situation.她的批评将会使局势更加不稳定。
• After six weeks of uncertainty,the strain was beginning to take its toll.6个星期的忐忑不安后，压力开始产生影响了。

10 cardboard   

n.硬纸板，卡纸板

参考例句：

• She brought the shopping home in a cardboard box.她将买的东西放在纸箱里带回家。
• There is a sheet of stiff cardboard in the drawer.在那个抽屉里有块硬纸板。

11 upside   

n.上侧，上段，上部

参考例句：

• The children hung the picture upside down.小孩把画挂倒了。
• If you turn the envelope upside down, the key will fall out.你如果把信封倒过来，钥匙就会掉出。