UNIT 4 Look into Science! Lesson 31: Surprise Your Friends!

[ti:UNIT 4 Look into Science! Lesson 31: Surprise Your Friends!]
[0:00.598]UNIT 4 第四单元
[0:02.622]Look into Science! 走进科学！
[0:05.152]Lesson 31: 第31课：
[0:07.589]Surprise Your Friends! 让你的朋友们吃惊！
[0:10.533]To: 寄：
[0:11.591]Li-Ming@net. cn
[0:16.190]From: 来自：
[0:17.294]danny@intersaurus. com
[0:21.847]Subject: 主题：
[0:23.549]An Experiment¹! 一次实验
[0:26.033]Date: 日期：
[0:27.137]24/04 5:57 PM
[0:33.346]Hi, Li Ming! 你好，李明！
[0:35.002]Do you want to surprise your friends? 你想让你的朋友们吃惊吗？
[0:38.359]Brian, Jenny and I did² an experiment in science class. 布赖恩，珍妮和我在科学课上做了一个实验。
[0:43.648]You can do it, too! 你也可以做！
[0:46.040]First, you need to get ready. 首先，你需要做好准备。
[0:49.076]Get a glass full of water and a piece of cardboard³. 拿一只装满水的杯子和一张纸板。
[0:53.307]Tell a friend to sit down. 让一位朋友坐下。
[0:55.699]Cover the glass with the cardboard, and turn the glass over. 将杯子用纸板盖上，把杯子倒过来。
[1:00.666]Hold it over your friend's head. 把它举在你朋友的头顶上面。
[1:03.748]Tell your friend, "I am going⁴ to take my hand off⁵ the cardboard. 告诉你的朋友：“我将把我的手从纸板下面拿开。
[1:09.083]Will the cardboard hold the water in the glass?" 纸板会承受住杯子里水的重量吗？”
[1:13.498]"No, I don't think so," your friend will say. “不，我不认为是那样，”你的朋友一定会说，
[1:18.512]"Keep your hand on the cardboard, please!" “请将你的手放在纸板上！”
[1:22.237]Next, take your hand off. 接着，拿开你的手。
[1:25.181]The cardboard will hold the water up! 纸板将承受水的重量而不使它掉下来！
[1:28.676]Air is heavier than we think! 空气比我们想象的要强大！
[1:31.712]It pushes⁷ down on us from above. 它从上面给我们以压力，
[1:34.870]It also pushes up on us from below⁸. 也从下面给我们以压力。
[1:39.101]In the experiment, air pushes up on the cardboard. 在这个实验里，空气给纸板向上的压力。
[1:44.068]But it can't push⁶ down on the water because the water is inside⁹ the glass. 但是它不能给水以向下的压力因为水装在杯子里。
[1:50.875]The air holds the water! 空气支撑着水！
[1:53.727]Science is interesting. 科学很有趣。
[1:56.165]Don't you think so? 你不那么认为吗？
[1:58.510]Your friend, 你的朋友，
[1:59.798]Danny 丹尼
[2:01.224]Did you try this experiment? 你试过这个实验吗？
[2:04.857]LET'S DO IT! 做一做！
[2:06.130]Prepare an interesting experiment you have tried before or have seen¹⁰ in your science books. 准备一个你试过的或是在你科学书上看过的有趣实验。
[2:13.073]Do it and describe¹¹ it to your class. 做实验并向你的同学们描述。
[2:13.073]
[2:13.073]
[2:13.073]

1 experiment   

n.实验，试验，尝试；v.实验，尝试

参考例句：

• We decided to begin the experiment in the evening.我们决定晚上开始那个实验。
• Why did he do that experiment once again?为什么他再次做那个实验？

2 did   

v.动词do的过去式

参考例句：

• How many goals did you score in the last game?上一场比赛你们进了几个球？
• Why did you choose basketball in the first place?你为何首先选择篮球呢？

3 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。

4 going   

n.去，离去，地面(或道路)的状况，工作情况；(复数形式）goings: 行为；adj.进行中的，流行的，现存的

参考例句：

• We're going to listen to a report this afternoon. 今天下午我们要去听报告。
• He hates leaving the office and going on holiday.他不愿离开办公室去度假。

5 off   

adj.远的；休假的，空闲的；adv.走开，出发，隔断；prep.离开，脱落，在...之外

参考例句：

• You'd better cool off first.你最好先冷静下来。
• I need some time off.我需要一些时间休息。

6 push   

vt.推；使突出，使伸出，使延伸；大力推进，推行；通过，促使；vi.推；推进；伸展

参考例句：

• Don't push against me!别推我！
• If you always push him too hard,he may make mistakes.要是你总逼他太紧，他可能会出错。

7 pushes   

v.推，推动( push的第三人称单数 )；对…施加压力；逼迫；按

参考例句：

• When I give the command, everybody pushes off together. 我一声令下，大家就一起用桨把船撑离河岸。 来自《简明英汉词典》
• He never pushes himself forward. 他从不强出风头。 来自《简明英汉词典》

8 below   

prep./adv.在……的下面；低于……

参考例句：

• I looked down at the hall below.我瞧了瞧下面的大厅。
• The temperature is below zero.温度在零度以下。

9 inside   

n.内部，内脏，内幕；adj.内部的，秘密的，户内的；prep.在...之内

参考例句：

• Two minutes later we were inside the taxi.两分钟以后我们已经坐在出租车里面了。
• He will be back inside two days.他将在两天内回来。

10 seen   

vbl.(see的过去分词)看见

参考例句：

• Since I left college, I have not seen him.自从我离开大学以后，就没有见过他了。
• I hope to have seen the film next week.我希望下星期能看到这部电影。

11 describe   

vt.描绘，描写；形容，把…说成

参考例句：

• Can you describe your son?你能描述一下你儿子 吗？
• It is very difficult to describe my joy in words.我的快乐难以用语言来形容。