Английский язык | 10 - 11 классы
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Ultraviolet light photochemistry domestic hydrogen bugs chemicals sewage germ - free bug - killing
Scientists have found new ways to shed light on the old problem of pollution - by using
1__ Ultraviolet___________ lamps to eradicate bacteria.
They have discovered that if sewage or other effluent is mixed with titanium dioxide, the basic ingredi¬ent of paint, and then exposed to ultra - violet 2 __ light, the result is annihilation of all 3 _______________.
This startlingly simple and cheap technique was revealed at last month's British Association for the Advancement of Science meeting in Swansea when researchers outlined their latest discoveries in the rapidly expanding field of 4 ______________, the study of compounds that react to light.
The ultraviolet project, a spin - off from research aimed at producing
5 _____________ fuel from sea water, has widespread applications.
For example, simple, yet highly effective devices for removing legionella bac¬teria from office air conditioning systems could be built this way, said Dr Andrew Mills of Swansea University.
In addition, pilot
6 _____________ plants that use ultraviolet light are already being tested in America and Britain.
There are two parts to the 7 ______________ system.
Firstly, titanium dioxide is mixed in water.
Then, when ultraviolet light is shone on the mixture, the titanium dioxide becomes energized and begins to oxidize chemicals it comes in contact with.
'Any bacteria that touch the granules are mineral¬ized, ' said Dr Mills, who presented the keynote Kelvin Lecture at the association meeting in Swansea.
'It is an extremely simple but powerful effect.
'
The action produced is similar to that of household bleach, which one day could be replaced by ultraviolet light, he added.
'One idea is to use ultraviolet light to make the 8 _____________ toilets of the future.
The toilet would be coated in titanium dioxide and then an ultra - violet light would shine when the seat is put down, just as a fridge light comes on when its door is opened.
Bacteria wouldn't have a chance.
'
This last idea may seem a trifle eccentric.
Nevertheless, several major companies, including Unilever, have recently begun research on ultraviolet - powered
9 ______________ appliances, though most of this effort has concentrated on developing washing machines.
Instead of using heat and detergents to break down and remove dirt on clothes, ultra - violet light would do the job.
Apart from saving on electricity, such devices would avoid the use of poisonous chemicals, like bleach, or detergents that have harmful environmental effects.
'That is the real motive of our research', added Dr Mills.
'Light - powered devices will free us from using damaging 10 _______________, and also from having to generate electricity to provide heat – and that will have a con¬siderable number of benefits, particularly for the environment.
'.
Write out from the text the sentences with verbs in the form of the Participle or the Gerund or the Subjunctive mood?
Write out from the text the sentences with verbs in the form of the Participle or the Gerund or the Subjunctive mood.
What is electricity?
Have you ever gotten a shock when you touched a doorknob, or seen sparks fly when you combed your hair?
That's electricity.
Electricity is a type of energy that gives things the power to work.
This energy comes from electrons.
Scientists have learned how to use electrons to produce electricity.
Meghometer The most commonly used apparatus for insulation resistance is the meghommeter or "megger".
The device is easy to handle.
It consists of a hand - driven generator in a permanent magnet frame which causes a moving coil to register the insulation resistance in ohms or megohms, the amount of which is indicated by a pointer.
The "megger" is also used for continuity, ground, and short - circuit testing in general electrical power work.
Electricity - Sound and Light Flip a switch and a light goes on.
It is simple, right.
Wrong!
Every time you flip a light switch, you make billions of little electrons go to work for you.
Uncountable hours of work have gone into providing you with the electricity you need to turn that light on.
Without electricity, you wouldn't have telephones, television, video games, and many other things you use every day.
Помогите, очень нужен перевод?
Помогите, очень нужен перевод.
The Development of Rubber Here is the story of rubber.
From the earliest time it was common knowledge the Peruvians that when a cut was made in the outside skin of a rubber tree , a white dliquid milk came out , and that this a sticky mass of rubber might be made .
This rubber is soft when warm, so that it is possible to give it any .
The Peruvians made the that it was very good for keeping out the wet.
Then in the early 1800's , the Americans made use of it for the first time .
First they made overshoes to their feet dry.
Then came a certain Mr.
Mackintosh, who made coats of cloth covered with natural rubber.
From that day to this we have been coating cloth with rubber as Mr.
Mackintosh, and our raincoats are still named after him.
But these first rubber overshoes and raincoats were all soft and sticky in summer, and and inelastic in the winter when it was cold.
But the rubber we have today is soft and elastiс, very strong - even in the warmest summer and the coldest winter.
This was made by a man called Goodyear.
After many , he found that nitric acid made the rubber much better, but it is not hard and strong enough.
Then a strange thing took .
A friend of his , Nicholas Hayward, had the idea in his sleep that rubber might be made hard and strong if mixed with sulphur and put in the sun.
Goodyear put this idea the test, and saw that it did have more or less the desired effect - though somewhat less than more.
The only effect it had was on the outside of the drubber.
It is common knowledge now that the to make rubber hard and strong is by heating dit with sulphur.
Напишите как читается :Only when all the rivershave run dryAnd all the fish in the sea have diedOnly when all the rainforestshave been burnt downAnd there is no food for animalsOnly when all the blue ?
Напишите как читается :
Only when all the rivers
have run dry
And all the fish in the sea have died
Only when all the rainforests
have been burnt down
And there is no food for animals
Only when all the blue skies
have been filled with smoke
And the cities of the world have choked
Will the white man understand that
It’s too late to save the earth.
Помогите перевод по англ Bonfire Night is on the fifth of November?
Помогите перевод по англ Bonfire Night is on the fifth of November.
It's a very interesting night for English children.
On that evening they make bonfires and have fireworks.
Some days before Bonfire Night they make the guy.
They make him of sticks and straw and then put an old hat on his head and old gloves on the sticks that are his hands.
When the bonfire is ready children or their parents put the guy on the bonfire and then light it.
State what part of speech the words in bold type belong to?
State what part of speech the words in bold type belong to.
1. Light moves quickest of all.
My room is large and light.
To light a cigarette one must have a match.
2. They are as like as two peas.
My new coat cost me something like 300 rubbles.
Did you ever see the like of that?
Children don’t like to go to bed early.
3. The earth is round.
The doctor begins his round early in the morning.
The pebbles in the sea are rounded by the water.
Go straight, don’t look round!
I should like to travel round the world.
1. light, light, to light.
2. like, like, like
3.
Round, round, rounded, round, round.
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Переведите текст пожалуйста.
In the world around us tgere are two things tgat do not belong to any contry.
They are the air and ocean water.
But people all over the world are concerned about very important things.
The problem is that the nature is damaged gereatly and needs protection.
Marry lips sailing in ocean waters pollute the water.
Polluting ocean waters leads to reducing of speeies of its animals, as they are dying of contamination.
Or contaminated fish can be caught in the sea by a fishberman and sold in markets.
Eating contaminated fish may affect man`s health.
Pollution of air results in destroying of the ozone layer, which protects the Earth from the dangerous light of the Sun.
It also causes acid rains that damage the resources and wildlife affecting the balance of nature.
Our forests are dying from acid rains, many species of animals and plants are under threat of disappearing.
The most serious danger arising from damaging the environment is the result of above mentioned consequences.
This is the danger for the life and health of man.
If we are unable to learn to use the environment carefully and protect it from damage caused y man`s activity, very soon we`ll have no world to ive in.
If we want our children to live in the same world we live in, or a better and healthier one, we must learn to protect the water, the air and the earth from pollution.
ПОМОГИТЕ ВСТАВИТЬ СЛОВА В ПРОПУСКИ?
ПОМОГИТЕ ВСТАВИТЬ СЛОВА В ПРОПУСКИ!
ПОЖАЛУЙСТА!
Ultraviolet
light
photochemistry
domestic
hydrogen
bugs
chemicals
sewage
germ - free
bug - killing
Scientists have found new ways to shed light on the old problem of pollution - by using 1_____________ lamps to eradicate bacteria.
They have discovered that if sewage or other effluent is mixed with titanium dioxide, the basic ingredi¬ent of paint, and then exposed to ultra - violet 2 ______________, the result is annihilation of all 3 _______________.
This startlingly simple and cheap technique was revealed at last month's British Association for the Advancement of Science meeting in Swansea when researchers outlined their latest discoveries in the rapidly expanding field of 4 ______________, the study of compounds that react to light.
The ultraviolet project, a spin - off from research aimed at producing 5 _____________ fuel from sea water, has widespread applications.
For example, simple, yet highly effective devices for removing legionella bac¬teria from office air conditioning systems could be built this way, said Dr Andrew Mills of Swansea University.
In addition, pilot 6 _____________ plants that use ultraviolet light are already being tested in America and Britain.
There are two parts to the 7 ______________ system.
Firstly, titanium dioxide is mixed in water.
Then, when ultraviolet light is shone on the mixture, the titanium dioxide becomes energized and begins to oxidize chemicals it comes in contact with.
'Any bacteria that touch the granules are mineral¬ized, ' said Dr Mills, who presented the keynote Kelvin Lecture at the association meeting in Swansea.
'It is an extremely simple but powerful effect.
' The action produced is similar to that of household bleach, which one day could be replaced by ultraviolet light, he added.
'One idea is to use ultraviolet light to make the 8 _____________ toilets of the future.
The toilet would be coated in titanium dioxide and then an ultra - violet light would shine when the seat is put down, just as a fridge light comes on when its door is opened.
Bacteria wouldn't have a chance.
' This last idea may seem a trifle eccentric.
Nevertheless, several major companies, including Unilever, have recently begun research on ultraviolet - powered 9 ______________ appliances, though most of this effort has concentrated on developing washing machines.
Instead of using heat and detergents to break down and remove dirt on clothes, ultra - violet light would do the job.
Apart from saving on electricity, such devices would avoid the use of poisonous chemicals, like bleach, or detergents that have harmful environmental effects.
'That is the real motive of our research', added Dr Mills.
'Light - powered devices will free us from using damaging 10 _______________, and also from having to generate electricity to provide heat – and that will have a con¬siderable number of benefits, particularly for the environment.
'.
1 _ most cats hunt in _ dim light, but they also hunt in _ dark and in _ daylight?
1 _ most cats hunt in _ dim light, but they also hunt in _ dark and in _ daylight.
A) - , - , the, - .
B) the, the, the, the
c) - - - -
d) the, the, - , the.
Please sos, help?
Please sos, help!
Выполните please задание!
Read the rules and the examples.
Then make sentences.
Переаод на русский : Прочитайте предложения и правило.
Затем выполните предложения!
)
We use for things near us.
We use this in the singular and these in the plural.
We use that / those for things far away from us.
We use that in the singular and those in the plural.
Read the rules and the examples?
Read the rules and the examples.
Then make sentences.
We use this / these for things near us.
We use this in the singular and these in the plutal.
We use that / those for things far away from us.
We use thar in the singalar and those in the plural.
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1. Аманде 8 лет.
Она живет со своими родителями на осторове с несколькими фермами.
Там нету школ, ближайшая школа находить 50 миль от туда на другом острове.
Люди добираются туда на лодках.