高中英语人教版2003年高一下04

[03:41.44]but a kite made of silk
[03:43.20]但是丝绸做的风筝
[03:44.97]will not tear so soon in weather with rain and strong winds.
[03:47.94]在暴风雨的天气中能够持续使用更长的时间.
[03:50.92]Build the frame of the kite
[03:52.75]这样先搭起一个风筝框架.
[03:54.58]by making a small cross of two pieces of light wood.
[03:57.61]用两根很轻的小木条做成一个小十字架,
[04:00.64]The pieces should be just long enough to reach the corners of the handkerchief.
[04:04.06]两根木条的长度应该足以够到手绢的四角.
[04:07.48]Tie the corners of the handkerchief to the points of the cross,
[04:10.36]把手绢的四角系在十字架上,
[04:13.23]and you will have a nice strong kite.
[04:15.75]这样你就可以做成一个很好,很结实的风筝.
[04:18.27]Add a tail to the frame and tie a long string to the cross
[04:21.50]给风筝的框架加上一个尾巴,
[04:24.72]so you can controlthe kite.
[04:26.55]在十字架上系上一个长细以便你控制风筝.
[04:28.38]The next steps are very important.
[04:30.60]接下来的三个步骤十分重要.
[04:32.82]First,fix a very sharp piece of metal pointing a foot or more above the frame
[04:36.85]首先,在十字架骨架较长的一根木棍的端部固定一根金属丝,
[04:40.87]to the top of the longest stick of the cross.
[04:43.35]使它比框架长出一英尺或更长的一些.
[04:45.83]Second,fasten a key to the end of the long string.
[04:48.95]其次,把钥匙固定在那根长细绳的的末端.
[04:52.08]Third,tie a silk ribbon to the string just above the key.
[04:55.39]第三,在细绳上系上一条丝带,正好超过钥匙.
[04:58.71]This ribbon,which must not get wet,will protect you from the electricity
[05:02.18]这个丝带不要浸湿,它可以保护你不受电击.
[05:05.66]Fly the kite when a thunderstorm appears to be coming on.
[05:08.39]在暴风雨即将来临的时候去做风筝.
[05:11.12]Stand inside a door,
[05:12.95]站在门里
[05:14.78]or under some cover,so that the silk ribbon does not get wet.
[05:17.75]或遮盖物下面,以便丝带不被弄湿.
[05:20.73]Take care that the string does not touch the wall or the door.
[05:23.67]小心别让细绳碰到墙上或门上.
[05:26.61]When a thundercloud comes over the kite,
[05:28.74]当雷雨云笼罩了风筝之后.
[05:30.87]the sharp piece of metal will pull the electricity from the cloud.
[05:33.95]金属丝会把电传导过来,
[05:37.03]The kite and the string will become charged.
[05:39.30]这样,风筝和细绳也就带电了.
[05:41.58]When the kite and the string are wet from the rain,
[05:43.95]当风筝和细绳在雨中浸湿的时候,
[05:46.33]they will conduct the electricity very well.
[05:48.71]它们会充分地导电,
[05:51.09]You can collect and store the electricity in the condenser
[05:53.87]这样你就能把电收集并贮存在电容中
[05:56.65]and use it for other experiments.
[05:58.64]并用它做其他的实验.
[06:00.62]Work book
[06:04.25]练习本
[06:07.88]Unit 16
[06:09.41]16单元
[06:10.94]Scientists at work
[06:12.61]工作中的科学家
[06:14.28]Integrating skills
[06:15.92]综合技能
[06:17.55]Reading
[06:18.78]阅读
[06:20.00]Writing with colour
[06:21.53]颜色的呈现
[06:23.06]The following simple experiments is used to separate different liquids.
[06:26.23]下面是个简单的实验就是分离不同的液体.
[06:29.41]It is a technique that can be used by the police
[06:31.69]这种方法经常被警察使用.
[06:33.98]to find out whether people have used drugs or not.
[06:36.36]用来找出人们是否有毒品.
[06:38.73]It can also be used in science experiments
[06:40.95]这个实验也在科学实验中用来
[06:43.17]to find out about different colours in leaves,
[06:45.55]发现叶子中的不同颜色
[06:47.93]flowers and in different kinds of ink.
[06:50.36]花和不同种类的墨水
[06:52.79]A simple classroom experiment shows the hidden colours in ordinary markers
[06:56.31]一个简单的班级实验表明普通的彩色蜡笔背后颜色.
[06:59.84]using the "magic"of this technique.
[07:01.90]使用技巧的魔术
[07:03.97]Who would guess that within any brown or black marker in your pencil box
[07:07.25]谁能想像得出在你铅笔盒里面的褐色或黑色的蜡笔.
[07:10.52]lie all possible colours?
[07:12.51]所有可能的颜色?
[07:14.49]Or that this rainbow of colours would be so easy to set free?
[07:17.62]或者彩虹的颜色有如此易变吗?
[07:20.74]The secret is a simple technique called paper chromatography
[07:24.02]一个简单的技术奥秘被称为纸色谱法.