Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
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
A geyser is the result of underground water under the combined conditions of high temperatures and increased pressure beneath the surface of the each. Since temperatue rises approximately one degree F for every sixty feet under the earth’s surface, and pressure increases with depth, water that seeps down in crachs and fissures until it reaches very hot rocks in the earth’s interior becomes heated to a temperatue in excess of 290 degrees F. Because of the gressure, it shoots out of the surface in the form of steam and hot water. The result is a geyser.For the most part, geysers are located in three regions of the world : New Zealand, Iceland, and the Yellowstone National Park area of the United States. The most famous geyser in the world is Old Faithful in Yellowstone Park. Old Faithful erupts almost every hour, rising to a height of 125 to 170 feet and expelling more then ten thousand gallons during each eruption1.
1. In order for a geyser to erupt,.................
.A. Hot rocks must rise to the sufface of the earth
B. water must flow underground
C. it must be a warm day
D. the earth must not be rugged or broken
2. Old Faithful is located in.....................
A. New Zeland
B. Iceland
C. the united States
D.England
3. Old Faithful erupts......................
A. every 10 minutes
B. every 60 minutes
C. every 125 minutes
D. every 170 minutes
4. A geyser is...................
A. hot water and steam
B. cracks and fissures
C. hot rocks
D. great pressure
5. As depth increases,......................
.A. pressure increases but temperature does not
B. temperature increases but pressure does not
C. both pressure and temperature increase
D. neither pressure nor temperature increases
A geyser is the result of underground water under the combined conditions of high temperatures and increased pressure beneath the surface of the each. Since temperatue rises approximately one degree F for every sixty feet under the earth’s surface, and pressure increases with depth, water that seeps down in crachs and fissures until it reaches very hot rocks in the earth’s interior becomes heated to a temperatue in excess of 290 degrees F. Because of the gressure, it shoots out of the surface in the form of steam and hot water. The result is a geyser.For the most part, geysers are located in three regions of the world : New Zealand, Iceland, and the Yellowstone National Park area of the United States. The most famous geyser in the world is Old Faithful in Yellowstone Park. Old Faithful erupts almost every hour, rising to a height of 125 to 170 feet and expelling more then ten thousand gallons during each eruption1.
1. In order for a geyser to erupt,.................
.A. Hot rocks must rise to the sufface of the earth
B. water must flow underground
C. it must be a warm day
D. the earth must not be rugged or broken
2. Old Faithful is located in.....................
A. New Zeland
B. Iceland
C. the united States
D.England
3. Old Faithful erupts......................
A. every 10 minutes
B. every 60 minutes
C. every 125 minutes
D. every 170 minutes
4. A geyser is...................
A. hot water and steam
B. cracks and fissures
C. hot rocks
D. great pressure
5. As depth increases,......................
.A. pressure increases but temperature does not
B. temperature increases but pressure does not
C. both pressure and temperature increase
D. neither pressure nor temperature increases
Read the passage and fill in each of the blanks with ONE suitable word.
True relaxation is most certainly not a matter of flopping down in front of the television with a welcome drink. Nor is it about drifting (1) into an exhausted sleep. Useful though these responses to tension and over-tiredness (2) can be, we should distinguish between them and conscious relaxation in (3) terms of quality and effect. (4) regardless of the level of tiredness, real relaxation is a state of alert yet at the same time passive awareness, in which our bodies are (5) at rest while our minds are awake.
Moreover, it is as natural for a healthy person to be relaxed when moving as resting. (6) Being relaxed in action means we bring the appropriate energy to everything we do, so as to have a feeling of healthy tiredness by the end of the day, (7) rather than one of exhaustion. Unfortunately, as a result of living in today’s competitive world, we are under constant strain and have difficulty in coping, (8) let alone nurturing our body’s abilities. What needs to be rediscovered is conscious relaxation. With (9) that in mind we must apply ourselves to understanding stress and the nature of its causes (10) how deep-seated.
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.
In Hanoi and North Vietnamese plains, it will be quite cold and foggy. The temperature will be from 14 to 20-degree centigrade. You should wear a coat and turn on the motorbike's light when going out. Don't forget to warm the elderly people and the children.
The provinces from Thanh Hoa to Binh Dinh as Nghe An, Ha Tinh and Quan Binh, the weather will be cloudy and wet. Somewhere can be rainy. The low will be 23 and the high will be 30-degree centigrade. When you need to go out, you should bring umbrella or raincoat.
In plateau area in central Vietnam, the weather will be very nice. It will be cool and windy a whole day. The low will be 15 and the high will be 20-degree centigrade. This will be a wonderful time to go for a picnic. Hope you will have a happy time with your family and your friends.
With the South, daytime will be sunny and baking hot, the night will be rainy and cold. The low will be 12 and the high will be 40 degree centigrade. With this kind of weather, the children and the elderly people will be sick easily, so you must take care of them carefully.
Mk sửa hết rùi đó. Nhìn chung bài viết của bn khá tốt chỉ có những mistakes khá nhỏ thôi.
In Hanoi and North Vietnamese plains, it will be quite cold and foggy. The temperature will be from 14 to 20 degree centigrade. You should wear coat and turn on the motorbike's light when go out. Don't forget to warm the elderly people and the children.
The provinces from Thanh Hoa to Binh Dinh as Nghe An, Ha Tinh and Quang Binh, the weather will be cloudy and wet. Somewhere can be rainy. The low will be 23 and the high will be 30 degree centigrade. When you need go out, you should bring umbrella or raincoat.
In plateau area in central Vietnam, the weather will be very nice. It will be cool and windy a whole day. The low will be 15 and the high will be 20 degree centigrade. This will be a wonderful time to go for a picnic. Hope you will have a happy time with your family and your friends.
With the South, daytime will be sunny and baking hot, the night will be rainy and cold. The low will be 12 and the high will be 40 degree centigrade. With this kind of weather, the children and the elderly people will be sick easily, so you must take care of them carefully.
Chưa chắc đúng.Chỗ in đậm là chỗ đã dc sửa lại
The passage below contains TEN mistakes. Underline them and write the correct forms in the numbered boxes.
Large animals inhabit \(\Rightarrow\) inhabiting the desert have evolved adaptations for reducing the effects of extreme hot \(\Rightarrow\) heat. One adaptation is to be light in color, and to reflect the Sun's rays. Desert mammals also depart from the normal mammalian practice of maintaining a constantly \(\Rightarrow\) constant body temperature. Instead of try \(\Rightarrow\) trying to keep down the body temperature inside the body, what \(\Rightarrow\) which would involve the expenditure of water and energy, desert mammals allow their temperatures rise \(\Rightarrow\) to rise to what would normally be fever height, and temperatures as high as 46 degree \(\Rightarrow\) degrees Celsius have been measured in Grant's gazelles. The overheated body cools down during the cold desert night, and indeed the temperature may fall unusual \(\Rightarrow\)unusually low by dawn, as low as 34 degrees Celsius in the camel. This is a \(\Rightarrow\) an advantage since the heat of the first few hours of daylight absorb \(\Rightarrow\) absorbed in warming up the body.