The planet which smallest and nearest the sun is Mercury.
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Unit 10: Space travel
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In 1543, Nicolaus Copernicus (publish) ... "On the Revolutions of the Heavenly Spheres" claiming that the earth and the planets (orbit) ... the sun.
Our home planet, Earth, resides in a glittering city of stars ... the Milky Way galaxy.
A. call B. calling C. to call D. called
In 2015 NASA discovered an Earth-like planet which might be ... because it has "just the right" conditions to support liquid water and possibly even life.
A. inhabited B. inhabitants C. habitable D. uninhabited
He (fly) ... on a Mercury spacecraft which (have) ... just enough room for one person.
Hailey ... that Mercury was so far away that its parallax angle would be very difficult to determine.
A. realized B. knew C. learned D. promised
Fill each blank with a suitable word to complete the following passage. Spaceexploration is the investigation of the universe beyond the Earth’s atmosphere, by (1) ________ of manned or unmanned spacecraft. Despite the technological advancements achieved in the past, space exploration was only (2) _______ until the 20th century. The first successful orbital launch was made by the Soviet Union in 1957 which was called “Sputnik”. When the topic “SPACE EXPLORATION” is put (3)_______ the table, a qu...
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Fill each blank with a suitable word to complete the following passage. Spaceexploration is the investigation of the universe beyond the Earth’s atmosphere, by (1) ________ of manned or unmanned spacecraft. Despite the technological advancements achieved in the past, space exploration was only (2) _______ until the 20th century. The first successful orbital launch was made by the Soviet Union in 1957 which was called “Sputnik”. When the topic “SPACE EXPLORATION” is put (3)_______ the table, a question has often been asked: “Why should we spend money on NASA while there are so (4) _______ problems here on Earth?” However, this might be partially wrong since exploring the unknown may help us progress. The advantages of space exploration include the materials (5) ________ can be obtained from outer space. For instance, asteroids have iron and nickel which could be utilized to satisfy the (6) ________ for metal. Therefore, numerous commercial companies have invested in developing technology for asteroid mining. Several comets and asteroids (7) ________ solid water in them. This water can be used for astronauts and scientists in space stations. The water can also be broken down to hydrogen which can be used as (8) ______ for the rockets. Scientists also believe that dinosaurs disappeared because they couldn’t go to (9) ________ planet. Sooner or later a killer comet will again cross Earth’s path, threatening all life. Fortunately, (10) _________we have knowledge about comets and space science, we will be able to survive.
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26 tháng 8 2021 lúc 8:46
*Complete the sentences with the words from the box.spacecraftgalaxiesrocketsparabolic flightweightlessnessmaintenancetelescopemissionsaltitudesspace tourism1. The feeling of ……………………in space is surreal. 2. It becomes harder to breathe in very high ……………………. 3. It takes a lot of ……………………to keep this rocket in great condition. 4. There are 8 planets in our galaxy but many more in other……………………. 5. ……………………are responsible for many discoveries in scientific history. 6. When an airplane is in ………………...
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*Complete the sentences with the words from the box.
| spacecraft | galaxies | rockets | parabolic flight | weightlessness |
| maintenance | telescope | missions | altitudes | space tourism |
1. The feeling of ……………………in space is surreal.
2. It becomes harder to breathe in very high …………………….
3. It takes a lot of ……………………to keep this rocket in great condition.
4. There are 8 planets in our galaxy but many more in other…………………….
5. ……………………are responsible for many discoveries in scientific history.
6. When an airplane is in ……………………, passengers can feel weightless.
7. It is believed that ……………………will become popular in the next 50 years.
8. NASA has had many failed ……………………but they are hopeful that this mission will succeed.
9. The International Space Station has developed many new ……………………in the last 10 years.
10. My little brother wants to work for NASA when he grows up so he can help build …………………….
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26 tháng 8 2021 lúc 8:39
*Complete the sentences with the words from the box.cometastronautspacelinespacesuitsatelliteuniversemeteoriteastronomymicrogravityspacewalk1. Halley’s ………………………only appears every 75 years. 2. The ………………………is bigger than we can imagine. 3. I think it would be incredibly exciting to do a ………………………. 4. We were asked to practice by scuba diving in a ………………………. 5. The government uses ………………………surveillance to track terrorists. 6. They are predicting a ………………………shower at the beginning of June. 7. …………...
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*Complete the sentences with the words from the box.
| comet | astronaut | spaceline | spacesuit | satellite |
| universe | meteorite | astronomy | microgravity | spacewalk |
1. Halley’s ………………………only appears every 75 years.
2. The ………………………is bigger than we can imagine.
3. I think it would be incredibly exciting to do a ……………………….
4. We were asked to practice by scuba diving in a ……………………….
5. The government uses ………………………surveillance to track terrorists.
6. They are predicting a ………………………shower at the beginning of June.
7. ………………………is a leading company in the growing industry of space tourism.
8. We also have to experience ………………………, which is awesome but a little dizzying.
9. My dream is to become an ………………………, so I registered for the next Virgin Galactic flight.
10. To prepare for the space trip, I read lots of interesting ………………………books about stars and planets.
When the man (fall) ... from the window, he (land) ... on the roof of a car.