[01:09.96]The Present Continuous Tense in the Passive Voice
[01:14.06]A:This brides is getting more and more crowded.
[01:17.95]B:Yes.Look!So many cares are being held up.
[01:22.34]A:As a matter of fact,the traffic is getting wrorse and worse.
[01:27.61]B:Don't be too wrrried about it.
[01:30.49]A:Why not?
[01:32.47]B:Anotehr bridge is being built.
[01:35.66]Listening Comprehension
[01:40.15]Listen and fill in the blanks.
[01:43.65]There(1)___many big,long bridges in the world.
[01:51.75]One of the most famous brides(2)___the Golden Gate Bridge in San Francesco.
[02:03.95]It(3)___in 1937.
[02:12.47]The floor of the bridge(4)___wide enough for six lanes of cars,thre in each direction.
[02:26.47]It(5)___a long time to go on foot from one end of the bridge to the other.
[02:39.16]Since 1950 many other big bridges have been built in the United States.
[02:50.16]Now the science of bridge building(6)___.
[02:59.36]New building materials and new constrction techniques(7)___.
[03:13.78]We know new designs(8)___in the future.
[03:30.47]In fact,a number of big bridges()___in Britain.
[03:39.27]Italy,Japan and China as well as in the United States.
[03:47.58]Text Plastics for Everyone
[03:51.58]A person can live in the modern world without synthetic substances.
[03:59.07]But if anyone tries to do it,
[04:03.38]he will soon miss many common things.
[04:07.67]Besides plastic pens,combs,and toothbrushes
[04:13.75]he will be without many kinds of cloth
[04:17.75]as well as some necessary parts of radios and television sets.
[04:23.44]Items like briefcases and suitcases
[04:28.83]are more expensiveif they are made of leather instead of plastic.
[04:35.12]Today there are many different types of plastics,
[04:41.44]and the manufacture of them is a very important industry.
[04:46.82]The finished products may be almost any colour, shape or texture.
[04:54.03]They may be hard or soft,
[04:57.64]and they can be made resistant to fire water and electricity.
[05:04.22]If a person visits the world's market places,
[05:09.50]he will find that plastics are being made and used almost everywhere.
[05:16.19]Plastic articles can be produced at a rather low cost.
[05:21.99]The machines for moulding them are not large or heavy.
[05:28.18]Most of the products are also lightweight
[05:33.27]and can be stored and transported easily.
[05:37.37]Thus, plastics are both popular and practical,
[05:42.86]and factories for making them can be found in many countries.
[05:48.55]New Words and Expressions
[05:52.55]plastic
[05:53.70]塑料;塑料制品
[05:54.85]synthetic
[05:56.35]人工制造的;合成的
[05:57.85]substance
[05:59.30]物质;材料
[06:00.75]miss/mis/
[06:01.80]想念;错过
[06:02.84]comb
[06:03.85]梳子
[06:04.85]toothbrush
[06:06.25]牙刷
[06:07.65]cloth
[06:08.94]布，织物
[06:10.23]as well as
[06:11.37]除......之外
[06:12.51]briefcase/'bri:fkeis/
[06:13.90]公文包
[06:15.30]suitcase/'sju:tkeis /
[06:16.59]手提箱
[06:17.89]leather
[06:18.84]皮革
[06:19.79]manufacture
[06:20.94]制造;生产
[06:22.09]industry
[06:23.29]工业
[06:24.50]finished
[06:25.65]完成了的
[06:26.80]product
[06:28.05]产品
[06:29.30]texture
[06:30.24]质地;结构
[06:31.18]resistant
[06:32.32]有抵抗能力的
[06:33.46]electricity
[06:34.64]电
[06:35.83]market
[06:36.88]市场
[06:37.92]everywhere
[06:39.12]到处;无论何处
[06:40.33]article
[06:41.37]物品;文章
[06:42.42]produce
[06:43.42]制造;生产
[06:44.43]cost
[06:45.52]成本
[06:46.62]mould
[06:47.72]造型;浇铸
[06:48.82]lightweight
[06:49.82]轻的;轻量的
[06:50.83]store
[06:52.12]贮备
[06:53.41]transport
[06:54.56]运输
[06:55.71]thus
[06:56.76]这样，如此
[06:57.80]practical
[06:58.79]实用的;实际的
