Английский язык | 1 - 4 классы
Global warming is called (to call) the greenhouse effect because the gases above the earth make the planet comparable to a greenhouse.
2) The term «acid rain» refers to what scientists call «acid deposition».
It (to cause) by destructive airborne acidic pollutants.
3) Acid rain (to discover) in 1852, when the English chemist Robert Agnus invented the term.
4) Recently, a more intensive research on the true causes of acid rain (to do) so that countries have the information they need to prevent acid rain and its dangerous effects.
5) Air pollution can (to find) both outdoors and indoors.
6) Every year, 14 billion pounds of sewage, sludge, and garbage (to dump) into the world’s oceans.
The government (has been talking / was talking) about the problem and it is trying to find ways to reduce acid rain?
The government (has been talking / was talking) about the problem and it is trying to find ways to reduce acid rain.
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Cars burn petrol, factories and power station burn coal and emit toxis fumes, the air that we breather becomes polluted.
This pollution is gathered in clods and with the oxygen and water in the atmosphere it becomes acid.
When it rains, this pollution lands on trees, houses, buildings, cars, clothes, everywhere!
This is called acid rain.
When acid rain falls into laks, streams, rivers and seas, they become toxic.
This is water pollution and it harms, kills or wipes out fish and plant species.
When acid rain flows through the sil, it poisons trees and plants.
Acid rain also causes serious damage to important building and objects.
The good news is that governments have been trying to reduce the air pollution that causes acid rain.
. Прочтите текст "Acid Rains " и выберите единственно правильный ответ?
. Прочтите текст "Acid Rains " и выберите единственно правильный ответ.
ACID RAINS
Every year more and more plants and animals disappear never to be seen
again.
Strangely, it is the most intelligent but most thoughtless animal that is
causing most of the problems — man.
Nature is very carefully balanced and if
this balance is disturbed, animals can disappear alarmingly fast.
Every day,
thousands of species of animals draw closer to extinction.
There are countless
number of species which may become extinct before they are even discovered.
In many lakes the fish are dying.
Fishermen are worried because every year there
are fewer fish and some lakes have no fish at all.
Scientists are beginning to get
worried too.
What is killing the fish?
The problem is acid rain.
Acid rain is a kind of air pollution.
It is caused by
factories that burn coal or oil or gas.
These factories send smoke high into the
air.
The wind often carries the smoke far from the factories.
Some of the
harmful substances in the smoke may come down with the rain hundreds of
miles away.
The rain in many places isn't natural and clean any more.
It's full of acid
chemicals.
When it falls in lakes, it changes them too.
The lakes become more
acidic.
Acid water is like vinegar or lemon juice.
It hurts when it gets in your
eyes.
It also kills the plants and animals that usually live in lake water.
That is
why the fish are dying in lakes.
But dead fish may be just the beginning of the problem.
Scientists are finding
other effects of acid rain.
In some large areas trees are dying.
Not just one tree
here and there, but whole forests.
At first scientists couldn't understand why.
There were no bugs or diseases in these trees.
The weather was not dry.
But
now they think that the rain was the cause.
Acid rain is making the earth more
acidic in these areas.
Some kinds of trees cannot live in the soil that is very
acidic.
Now scientists are also beginning to study the effects of acid rain on larger
animals.
For example, they believe that some deer in Poland are less healthy
because of acid rain.
If deer are hurt by the rain, what about people?
This is the
question many people are beginning to ask.
No one knows the answer yet.
But
it is an important question for us all.
Вопросы к тексту :
1.
This passage is about
(A) fishing.
(B) acid rain.
(C) air pollution.
(D) destructive human activity.
2. Every year thousands of species of animals
(A) are hunted for their meat and skins.
(B) migrate to other places.
(C) starve to death.
(D) die out.
3. Acid rain is caused by
(A) natural gas.
(B) the ozone layer depletion.
(C) acidic lake water.
(D) emissions of industrial enterprises.
4. Which of the following is true?
(A) Dead fish in lakes is the only problem caused by acid rains.
(B) Scientists are sure that acid rains are not harmful for mankind.
(C) If we don't make an attempt to stop acid rains we may never see
some animals again.
(D) There's no reason to worry about several trees that died of some
unknown disease.
5. What was not mentioned in the text?
(A) Acid rain is capable of dissolving some rocks and stones.
(B) Fish are unable to live in the water containing acidic chemicals.
(C) Coal, oil or gas form dangerous combinations after being burnt.
(D) Scientists reckon that if some larger animals can be affected by acid rains,
people may be in great danger.
6. Factory smoke
(A) stays over the factories.
(B) is usually clean now.
(C) turns into air.
(D) can travel hundreds of miles.
7. Scientists think acid rain
(A) is killing people.
(B) helps kill bugs.
(C) fertilizes the soil.
(D) is killing trees.
Put the verbs in brackets into the correct passive form?
Put the verbs in brackets into the correct passive form.
1) Global warming ___is believed__ (to believe) to be caused by the greenhouse effect.
2) The seas_________(to fill) with poison : industrial and nuclear waste, chemical fertilisers and pesticides.
3) If nothing __________(do) about it, one day no animal or plant will be able to live in the seas.
4) Tons of harmful substances___________(to emit daily) by industrial enterprises.
5) As globalization continues and the earth’s natural processes transform local problems into international issues, few societies__________(to leave) untouched by major environmental problems.
6) Acid rain, one of the most important environmental problems of all, cannot________(to see).
The invisible gases that cause acid rain usually come from automobiles or coal - burning power plants.
7) Air pollution can have serious consequences for the health of human beings ; the natural ecosystem_________(to affect) severely by it.
Put the verbs in brackets into the correct passive form?
Put the verbs in brackets into the correct passive form.
1) Global warming ___is believed__ (to believe) to be caused by the greenhouse effect.
2) The seas_________(to fill) with poison : industrial and nuclear waste, chemical fertilisers and pesticides.
3) If nothing __________(do) about it, one day no animal or plant will be able to live in the seas.
4) Tons of harmful substances___________(to emit daily) by industrial enterprises.
5) As globalization continues and the earth’s natural processes transform local problems into international issues, few societies__________(to leave) untouched by major environmental problems.
6) Acid rain, one of the most important environmental problems of all, cannot________(to see).
The invisible gases that cause acid rain usually come from automobiles or coal - burning power plants.
7) Air pollution can have serious consequences for the health of human beings ; the natural ecosystem_________(to affect) severely by it.
ПОМОГИТЕ ПАЖАЛУСТА, НИМАГУ САМ РИШИТЬ.
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The good news was that governments have been trying to reduce the air pollution that caused acid rain.
, , , industries have been using new technologies for some time to help make factory smoke less harmful to the environment.
But we need to do more.
We can help reduce the amount of acid rain by using, , , , cars less or by using solar power to heat our homes.
(всё).
Now scientists are more or less sure about the greenhouse effect which makes the Earth warmed by trapping energy in the atmosphere because certain gases (carbon dioxide, methane and some others) preve?
Now scientists are more or less sure about the greenhouse effect which makes the Earth warmed by trapping energy in the atmosphere because certain gases (carbon dioxide, methane and some others) prevent heat from escaping into space.
Look at the pictures and say how people increase the amount of such gases in the atmosphere.
Add some more examples to illustrate your answer.
Помогите пожалуйста с переводом текста на русский - язык?
Помогите пожалуйста с переводом текста на русский - язык.
Today environmental protection has become a universal problem.
Technological progress improves people's lives, but at the same time it brings about pollution and contamination of land, water and air.
The atmosphere of the Earth and the depths of the oceans are poisoned with toxic wastes created by the humans.
Millions of species - animals, birds, fish have already disappeared from our planet.
Natural resources are exhausted : the ecology of the planet is disbalanced.
Big cities face the environmental catastrophe too.
Concentration of millions of people on a tiny area causes numerous problems.
Some of them can be solved only at the expense of creating new ones.
Thus, air pollution is caused by the ever - increasing number of automobiles that help to cope with the transportation problem.
The need for energy generates pollution on a large scale.
Nuclear power plants threaten air, water and land.
Radiation affects people's health.
The accident at Chernobyl in 1986 was tragic for many people.
The necessity to employ all the inhabitants of the city leads to the creation of new factories that produce not only consumer goods, but wastes, noise and smog.
Another source of global danger is acid rain.
It is a relatively new kind of pollution.
Acid rains appeared as a reaction of the atmosphere to the air contamination.
Acid rains damage water, forest, and soil resources.
Acid rains cause the disappearance offish from many lakes, bring death to the forests and woods in Europe and America.
Как нужно читать этот текст по - русски?
Как нужно читать этот текст по - русски.
It has already been explained that an ester is the product formed by the reversible reaction between an acid and alcohol.
If an acid and an alcohol are mixed, a condition of equilibrium will eventually be set up when the rates of the direct reaction (etherification) and the reverse reaction (hydrolysis) are equal.
It follows from the law of mass action that an increase in the molecular concentration of anyone of the reacting substances will displace the equilibrium in the opposite direction.
Any excess of water will diminish the proportion of ester present at equilibrium.
Consequently, in the preparation of esters, it is necessary as a rule to use the anhydrous acid and alcohol in order to obtain good yields, and the reaction is usually carried out in the presence of an acid catalyst (concentrated sulfuric acid or dry hydrogen chloride).
An ester may be almost completely hydrolyzed if it is heated with water, provided that a large enough proportion of water is used.
The hydrolysis is usually slow, but is catalyzed by acids.
It becomes complete if a dilute solution of an alkali is used instead of water, for the acid produced by hydrolysis is neutralized by the alkali as fast as it is formed, and so can take no further part in the reaction.
Most esters of organic acids are pleasant - smelling, volatile liquids and many of them are used in perfumery and in the production of artificial flavoring agents.
Ethyl acetate is a typical example of an ester of an organic acid.
It is formed when acetyl chloride or acetic anhydride acts on ethyl alcohol.
Ethyl acetate is prepared by the interaction of alcohol and glacial acid, in the presence of concentrated sulfuric acid.
Помогите составить предложения со словами : Dumb Acid rain Species Deforestation Pollution?
Помогите составить предложения со словами : Dumb Acid rain Species Deforestation Pollution.
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2
The "acid rain" refers to what scientists call "acid deposition".
It is caused by desreuctive airborne acidic pollutants.
3
Acis rain was discovered in 1852, when English chemist Robert Agnus invented the term.
4
Recently, a more intensive research on the true causes of acid rain has been done so that countries have the information they need to ptevent acid rai and its dangerous effects.
5
Air pollution can be found both outdoors and indoors.
6
Every year, 14 billion pounds of sewage, sludge and garbage are dumped into the wotld`s oceans.