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Find a mistake in the four underline parts of each sentence
1 if i am the predent, i would remove all the factories out of the city
=> were
2 scientists worry that the continued use of certain pollution may damage the earth's ozone layer
=> are worried
3 in America,its not impolite to ask question about age ,marrige and income
=> polite
4 Hoa said that she will be doing an experiment at 10 o clock the following day
=> would
Rewrite each of the following sentences so that it means exactly the same as the given one. Using the given words in brackets. Do not change the word.
1: I'm not you. But I think you should recycle these plastic carrier bags. (if)
........If I were you, I would recycle these plastic carrier bags.......
2: Emma came first because she worker hard. ( result)
..............Emma came first as a result of her hard work.............
3: Eating too much sugar can result in health problems. ( lead )
...............Eating too much sugar can lead to health problems.......
4: All frights had to be cancelled as a result of the pilots sudden strike. (so)
..........The pilots suddenly went on strike, so all flights had to be cancelled. ..........
5: If I could swim. I would go scuba diving with Terry. (beacause)
....I don't go scuba diving with Terry because I can't swim........
Give the correct form of the words to complete the following sentences.
John watched a ( 1. document)documentary on TV last night. It was all about the problems ( 2. threaten)threatening our environment. He was shocked to find out how little he knew about (3.globe)global warning or acid rain. He had heard the term before but he knew ( 4. practical)practically nothing about the damage they cause to our planet. He feels he should do something to be (5.help)helpful. He would like to join an ( 6.organize)organization , but he doesn't know which one to join. He has seen so many (7.advertise)advertisements in newspapers that he can't make up his mind. I lowever., he believes that it is ( 8. acceptable)unacceptable not to be environmentally aware and he is ( 9.hope)hopeful that one day everyone will be part of a world movement to save the earth. He was sure that in this time of ( 10. technology)technological advances, we find may to solve the world's problems.
1............. 2................. 3................. 4.................. 5................. 6................7.................. 8................. 9................. 10.................
X Read the passage. Answer the questions below.
Scientists have discovered that the ozone layer is getting thinner. Some predict that the sun’s rays will cause a sharp increase in deaths from skin cancer over the next fifty years. These harmful rays can also damage the eyes, create wrinkles, and cause other health problems.
The stratosphere contains a form of oxygen called ozone. Ozone is a molecule composed of three oxygen atoms. The chemical formula of ozone is 03. Oxygen molecules make up about 21% of all gases in the Earth’s atmosphere. They consist of two atoms of oxygen and are labeled 02. Most ozone found in our atmosphere is formed by an interaction between oxygen molecules and ultraviolet radiation (UV) from the sun. When ultraviolet radiation hits an oxygen molecule, it may cause the molecule to break apart into single atoms of oxygen. These single atoms are very reactive, and a single oxygen atom can combine with a molecule of oxygen to form ozone.
1.What do people say about the rate of deaths from skin cancer in the future?
=> Some predict that the sun’s rays will cause a sharp increase in deaths from skin cancer over the next fifty years. These harmful rays can also damage the eyes, create wrinkles, and cause other health problems.
2. How many oxygen atoms are there in a molecule?
=> Oxygen molecules make up about 21% of all gases in the Earth’s atmosphere
3.What elements participate in the formation process of ozone?
=> Most ozone found in our atmosphere is formed by an interaction between oxygen molecules and ultraviolet radiation (UV) from the sun.
4.What happens when an oxygen molecule and an ultraviolet radiation hit each other?
=> When ultraviolet radiation hits an oxygen molecule, it may cause the molecule to break apart into single atoms of oxygen
5.What is the feature of single atoms?
=> These single atoms are very reactive, and a single oxygen atom can combine with a molecule of oxygen to form ozone.
I.Put the verbs into the correct form:
1.If people (be)......were........fully aware of the dangers of air pollution,they (damage).........wouldn't damage...........the atmosphere this way
2.We (not be)...........won't............able to drink that water if it is not refined
3.If you (reduce)............reduce............the number of bulbs in your house,you (pay)..........will pay..........less money for the electricity bill next month
II.Fill in the blank with the correct form of the given word
1.Many people don't know about the..........danger..............of soil pollution (dangerous)
2.The river is seriously..........comtaminated..........by the factory's waste (contaminate)
3.The water color can show us how.......polluted...........the river is (pollute)
32 \(\).tonight - > that night
33 .finished -> had finished.
34 . worked -> working
35 . told -> asked
36 . weather -> whether
32 .tonight => that night
33 .finished => had finished
34 . worked => working
35 . told => asked
36 . weather => whether
Read the each time the text below.Use the word given in at the end of each line to form a word that fits on the space in the same line:
THE ENVIRONMENT:OUR RESPONSIBILITY.
These days it is(0)..impossible...to open a newspaper without reading about the(possible).damage we are doing to to the environment.The earth is being(1)threatened...(threat)and the future looks bad.What can each of us do?
We cannot clean up our(2).polluted..(pollution)rivers and seas overnight.Not can we stop the(3).disappearance..(appear)of plants and animals.But we can stop adding to the problem while(4)...scientists(science)search for answers and laws are passed in nature's(5).dependence...(depend).
It may not be easy t change your lifestyle(6)completely...(complete),but some steps are easy to take:cut down the amount of(7)..driving.(drive)you do,or use as little plastic as possible.It is also easy to save energy,which also reduce(8)..household.(house)bills.We must all make a personal(9).decision..(decide)to word for the future of our planet if we want to(10)make sure..(sure) a better world for our grand children.
Our sun is actually an orange, dwarf star. Although it is not nearly the ....hottest ....(hot) star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We ......commonly ..... (common) think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times ......greater ....(great) than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.
The sun's corona is almost as hot as interior. Solar prominences-tongues of hot gas-leap outward a half million miles from the sun's surface at speeds reaching 250,000 miles an hour. ........Fortunately... (fortune) , these prominences do not travel the full ninety three million miles to earth, nor are their terrific temperatures transmitted through space. Some of the energy from these ..disturbances ....... (urban) does not reach our atmosphere, however, and is believed to cause changes in weather.Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.
Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.
The sun's corona is almost as hot as interior. Solar prominences-tongues of hot gas-leap outward a half million miles from the sun's surface at speeds reaching 250,000 miles an hour. Fortunately, these prominences do not travel the full ninety three million miles to earth, nor are their terrific temperatures transmitted through space. Some of the energy from these disurbances does not reach our atmosphere, however, and is believed to cause changes in weather.Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth
Read the following passage and choose the best answer for each of the questions.
Aging is the process of growing old. It occurs eventually in every living thing provided, of course, that an illness or accident does not kill it prematurely. The most familiar outward signs of aging may be seen in old people, such as the graying of the hair and the wrinkling of the skin. Signs of aging in a pet dog or cat include lass of playfulness and energy, a decline in hearing and eyesight, or even a slight graying of the coat. Plants age too, but the signs are much harder to detect.
Most body parts grow bigger and stronger, and function more efficiently during childhood. They reach their peak at the time of maturity, or early adulthood. After that, they begin to decline. Bones, for example, gradually become lighter and more brittle. In the aged, the joints between the bones also become rigid and more inflexible. This can make moving very painful.
All the major organs of the body show signs of aging. The brain , for example, works less efficiently, and even gets smaller in size. Thinking processes of all sorts are slowed down. Old people often have trouble in remembering recent events.
One of the most serious changes of old age occurs in the arteries, the blood vessels that lead from the heart. They become thickened and constricted, allowing less blood to flow the rest of body. This condition accounts, directly or indirectly, for many of the diseases of the aged. It may, for example, result in heart attack.
Aging is not a uniform process. Different parts of the body wear out at different rates. There are great differences among people in their rate of aging. Even the cells of the body differ in the way they age. The majority of cells are capable of reproducing themselves may times during the course of a lifetime. Nerve cells and muscle fibers can never be replace once they wear out.
Gerontologists- scientists who study the process of aging- believe this wearing out of the body is controlled by a built- in biological time clock. They are trying to discover how this clock works so that they can slow down the process. This could give man a longer life and a great number of productive years.
1. What does the word “it” in line 2 refer to?
A. aging B. a living thing C. an illness D. an accident
2. All the followings may be the outward signs of aging EXCEPT ________.
A. the graying of the hair B. the wrinkling of the skin
C. the decline in hearing and eyesight. D. the loss of appetite
3. When does the human body begin to lose vigor and the ability to function efficiency?
A. Soon after reaching adulthood B. During childhood
C. Early adulthood D. Past middle age
4. What happens to memorization when the brain begins to age?
A. It works less B. It becomes forgetful
C. It declines D. It slows down
5. According to the passage, which of the following is NOT true?
A. All living things grow old.
B. Aging is unavoidable in any livings things.
C. Plants show less signs of aging than any other living things.
D. Most body parts wear out during the courses of a lifetime.
D.
1.She said that he wasn't at home.
2.I asked her if it was going to be a fine day that day.
3.The girl wanted to know if the bus station was far away.
4.She told me that they had cleaned the windows.
5.Charles said that he hadn't had time to do his homework.
6.Jean said that the boss had to sign the letter.
7.If you don't keep quiet, you will wake him up.
8.If we had a lot of money, we would buy more new books.
9.Some aid was sent by Vietnam to Japanese earthquake victims in 2014.
10.Food and water were prepared by people for a disaster.
B.
1.dangerous
2.safety
3.electricity
4.erupted
5.preparation
6.natural
7.shortage
8stormy
9.erosion
10.destroyed
11.damage
12.scarce
Find a mistake in the four underline parts of each sentence:
1. If I am the predent, i would remove all the factories out of the city.
-> were
2. Scientists worry that the continued use of certain pollution may damage the earth"s ozone layer.
-> pollutants
3. In America, it's not impolite to ask question about age, marrige and income.
-> polite
4. Hoa said that she will be doing an experiment at 10 o clock the following day.
-> would