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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
Use the correct word form of the word given in each sentence.:
1. A lot of beautiful toys are made from..recycled......... plastic ( Recycle )
2. " Friends of the Earth " is an ......environmental.. organization ( Environment)
3. Linda is one of the....representatives.... from Friends of the Earth ( Represent)
4. It's..dangerous...... to swim in the river ( Danger )
5. Our country is rich in....natural.... resources ( Nature )
6. Reduce means not buying Products which are....overpackaged... ( Package )
7. Compost is a natural.....fertilizer.... It helps plants grow ( Fertilize )
8.......Luckily..., he passed all the exams ( Lucky )
Fill in each blank with one suitable word to complete the passage below.
In July 1994 Jupiter, the largest planet in our solar system, was struck (1) ………by……… 21 pieces of a comet. When the fragment landed in the southern hemisphere of the giant planet, the explosions (2) ………were……… watched by astronomers here on Earth. But what if our planet was hit by a comet? The year is 2094. It has (3) …………been…… announced that a comet is heading towards the Earth. Most of it will miss our planet, but two fragments (4) ………will……… probably hit the southern hemisphere. On 17 July, a fragment four kilometers (5) ………wide………enters the Earth’s atmosphere (6) ………with……… a massive explosion. About half of the fragment is destroyed and pieces are scattered through the atmosphere. But the core survives and hits the South Atlantic at 200 times the (7) ……speed………… of sound. The sea boils and a huge hole is made in the sea bed. An enormous tidal (8) ……wave………… is created and spreads outwards from the hole. The wall of water, a kilometer high, rushes towards southern Africa at 800 kilometers (9) ………an……… hour. Cities on the African coast are totally destroyed and millions (10) ………of……… people are drowned. The wave moves into the Idian Ocean and heads towards Asia.
1. We apologize for the ...inconvenience........... caused to the passengers. (convenient)
2. Using the Internet in daily life can be ......costly........ (cost)
3. Astronauts who are orbiting the Earth often experience sensation of .......weightlessness....... (weight)
4. NASA scientists believe the ....existence.................. (egist)
2. UFO, which means flying saucer, is the abbreviation for ...............unidentified.................... Flying Object (identify)
gạch chân đáp án đúng
1 the members of Kim's family (travel/travels)to American
2 a flag from every country (was/were)painted in the book
3 all the reports on the meeting (is/are) on the desk
4 all the planets in the solar system (orbit/orbits) the sun
5 the light from the sun (take/takes) 8 minutes to reach Earth
6 the news (was/were) extremely terrified
7 the leader,along with three his colleagues and two supporters(is/are) discussing on the problem
8 each of the cars in the street (is/are)new
Fill in each gap with a suitable word from the box
Socket joystick monitor printer function program mouse keyboard screen disk
A computer has a 1..keyboard. similar to that of typewroter . It is possible to give the computer commands by means of the 2..monitor.. keys above the letter keys . The machine has a 3...socket.. at the back so that you can connect it to a 4...screen.. which has 5..function.. like a television . We often use a 6..program... Which someone has written .All the information is stored on 7...disk.. and at the side of the computer there is a 8..mouse... A 9...printer... is used to copy the information on to paper . The object like a car gear is useful for playing game on a computer is called a 10..joystick...
#maymay#
1. galaxy 2. Neptune 3. outer 4. unidentified flying object 5. planet 6. spacecraft 7.alien 8.pilot 9. meteor 10. mineral 11. gemstone 12. orbit