In the future,the Internet will be different from what it is now.There will be many more websjye.aies.It is predicted that in the year 2100,there will be hundreds of billions of websites.This means that the use of search engines will become much more important.And there will also be many more sites in different languages.This means that on every proper website,there will be links with the language you want.
Another prediction on the Internet is that data transmission speed will increase globally.According to Akamai Technologies,the average global data transmission speed in late 2009 was 1.7 megabits per second.Compare that to the record for data transmission speed set by Bell Labs:100 billion megabits per second.At that speed,you could transmit 400 DVDs worth of data every second.That's an enormous gap between what's currently possible and what's commercially available.But as time passes,the costs of producing super high speed networks will decrease.
In the future,people will live under the sea and the housing shortage will be solved.There will be lots of glass domes (穹狀建筑物) under the sea,which allow people to look all around into the sea.Air will be provided via air pipes which lead to the open air.You can travel from one dome to another via a kind of submarine which will also be made of glass.The domes will be so beautiful and the view under the sea will be so impressive that many people will prefer to live under water,and less people will prefer to live on land.This will have a positive effect on the environment on land.
In the future we won't use oil or gas as energy any more.We will make use of sunlight,water and wind.Cars will run on water.Just fill your tank with water,and you can drive further than you could drive with the same amount of gasoline.Also,the exhaust won't be damaging to the environment,because it'll just be water vapor(蒸汽).So the water cycle won't change,we'll keep the same amount of water on the earth,and we won't run out of water.Also,all energy will be supplied by natural sources:sunlight,wind and water.
(1)What can we know about the Internet in the future from the first two paragraphs? AA
A.It will be more important to use search engines.
B.Most of the websites will be designed in English.
C.People not knowing a foreign language will find it hard to surf the Internet.
D.There will be great gaps between developed countries and developing countries in Internet usage.
(2)Why are super high speed networks not available to the public at present? AA
A.Because the cost is too high.
B.Because there are technical difficulties.
C.Because Bell Labs doesn't want to sell its technique.
D.Because governments haven't recognized their value.
(3)The underlined word "exhaust" in Paragraph 4 probably refers to " BB".
A.oil product
B.waste air
C.solar energy
D.wind energy
(4)What can we infer from the text? DD
A.The Internet is the most advanced invention in history.
B.Water will run out sooner than we have expected.
C.Houses under the sea will be made from metal.
D.Sunlight,wind and water will benefit people more in the future.
【考點(diǎn)】環(huán)境保護(hù);說(shuō)明文.
【答案】A;A;B;D
【解答】
【點(diǎn)評(píng)】
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發(fā)布:2024/4/20 14:35:0組卷:0引用:1難度:0.6
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