black hole?
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8 tháng 6 2021 lúc 10:07
Use the Internet or books to find the answers to the quetions:
What is the black hole?
How is the black hole made?
What is special about the black hole and light?
How big are the biggest black holes?
Where are they?
Write 5 or 6 sentences about black holes.
Black hole is the vacuum dark hole eat the universe.
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The supernova made the black hole because giant star blast
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8 tháng 6 2021 lúc 10:18
Use the Internet or books to find the answers to the quetions:
What is the black hole?
How is the black hole made?
What is special about the black hole and light?
How big are the biggest black holes?
Where are they?
Write 5 or 6 sentences about black holes.
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câu 1
A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying.
câu 2
A black hole can be formed by the death of a massive star. When such a star has exhausted the internal thermonuclear fuels in its core at the end of its life, the core becomes unstable and gravitationally collapses inward upon itself, and the star's outer layers are blown away.
câu 3
The defining feature of a black hole is the appearance of an event horizon—a boundary in spacetime through which matter and light can pass only inward towards the mass of the black hole. Nothing, not even light, can escape from inside the event horizon.
câu 4
66 billion solar masses Currently the largest known black hole, powering the quasar TON 618, has a mass of 66 billion solar masses. TON 618's enormous bulk led scientists to speculate whether or not even larger black holes exist, and if there is any upper limit to their sizes.câu 5Astronomers believe that supermassive black holes lie at the center of virtually all large galaxies, even our own Milky Way. Astronomers can detect them by watching for their effects on nearby stars and gas.câu 6 ( tự làm đi )tui Tham khảo hết nha
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Chia động từ
If an astronaut (fall)....... into a black hole in space ,what(happen)..........?
Chia động từ
If an astronaut (fall)....falls... into a black hole in space ,what(happen).....will happen.....?
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Chia động từ
If an astronaut (fall)....... into a black hole in space ,what(happen)..........?
Chia động từ
If an astronaut (fall)...falls.... into a black hole in space ,what(happen)..will happen........?
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22 tháng 9 2021 lúc 18:36
II. Change the sentences from active into the passive voice. 1. Rubbish is damaging communications satellites. 2. They are opening a new hotel in my street.3. Scientists were investigating the “black hole” over the South Pole at that time.4. My sister is making a dress for my mom’s birthday.5. When we came, the little boy was painting a picture of the tiger that he saw in the zoo.6. He is taking his children to the zoo this Sunday. 7. In the conference room, people were using a lot of different...
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II. Change the sentences from active into the passive voice.
1. Rubbish is damaging communications satellites.
2. They are opening a new hotel in my street.
3. Scientists were investigating the “black hole” over the South Pole at that time.
4. My sister is making a dress for my mom’s birthday.
5. When we came, the little boy was painting a picture of the tiger that he saw in the zoo.
6. He is taking his children to the zoo this Sunday.
7. In the conference room, people were using a lot of different languages.
8. Someone left this purse in a classroom yesterday.
9. Where did you buy this dictionary?
10. How often does your mother take you to the cinema?
22 tháng 9 2021 lúc 19:03
II. Change the sentences from active into the passive voice. 1. Rubbish is damaging communications satellites.2. They are opening a new hotel in my street.3. Scientists were investigating the “black hole” over the South Pole at that time.4. My sister is making a dress for my mom’s birthday.5. When we came, the little boy was painting a picture of the tiger that he saw in the zoo.6. He is taking his children to the zoo this Sunday.7. In the conference room, people were using a lot of different la...
Đọc tiếp
II. Change the sentences from active into the passive voice.
1. Rubbish is damaging communications satellites.
2. They are opening a new hotel in my street.
3. Scientists were investigating the “black hole” over the South Pole at that time.
4. My sister is making a dress for my mom’s birthday.
5. When we came, the little boy was painting a picture of the tiger that he saw in the zoo.
6. He is taking his children to the zoo this Sunday.
7. In the conference room, people were using a lot of different languages.
8. Someone left this purse in a classroom yesterday.
9. Where did you buy this dictionary?
10. How often does your mother take you to the cinema
1. Rubbish is damaging communications satellites.
Communications satellites is being damaged by rubbish
2. They are opening a new hotel in my street.
A new hotel is being opened in my street
3. Scientists were investigating the “black hole” over the South Pole at that time.
"The black hole" over the South Pole was being investigated by scientists at that time
4. My sister is making a dress for my mom’s birthday.
A dress is being made for my mom's birthday by my sister
5. When we came, the little boy was painting a picture of the tiger that he saw in the zoo.
When we came, a picture of the tiger that he saw in the zoo was being painted by him
6. He is taking his children to the zoo this Sunday.
His children are being taken to the zoo this Sunday.
7. In the conference room, people were using a lot of different languages.
In the conference room, there are a lot of different language
8. Someone left this purse in a classroom yesterday.
His purse was left in a classroom yesterday
9. Where did you buy this dictionary?
Where was this dictionary bought
10. How often does your mother take you to the cinema
How often are you taken to the cinema
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Complete the sentences about the possible future for our word,using a suitable form of the verb in brackets,depending on whether you think the sentence describes something real/possible or unreal/impossible.
1) If an astronaut (fall)....... into a black hole in space ,what(happen)..........?
2) If people (not stop)........... using cars so much the countrys road (eventually grind)............ to a standstill.
3) What (happen)............ when the worlds supplies of oil (run out).............?
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Complete the sentences about the possible future for our word,using a suitable form of the verb in brackets,depending on whether you think the sentence describes something real/possible or unreal/impossible.
1) If an astronaut (fall)....... into a black hole in space ,what(happen)..........?
2) If people (not stop)........... using cars so much the country's road (eventually grind)............ to a standstill.
3) What (happen)............ when the world's supplies of oil (run out).............?
Complete the sentences about the possible future for our word,using a suitable form of the verb in brackets,depending on whether you think the sentence describes something real/possible or unreal/impossible.
1) If an astronaut (fall)......falls. into a black hole in space ,what(happen)...will happen.......?
2) If people (not stop)..do not stop......... using cars so much the country's road (eventually grind)......will eventually grind...... to a standstill.
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My brother ______at the road when he______into a hole.
A. didn’t look - has fallen
B. wasn’t looking - was falling
C. won’t look - fall
D. wasn’t looking - fell
A rat is a small animal. ………… lives in a hole.
A. He
B. She
C. They
D. It
Đáp án: D
Dịch: Một con chuột là một động vật nhỏ. Nó sống trong một cái lỗ.
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