It is cheaper to build an unmanned ... than the one that is manned.
A. space B. spacecraft C. spacious D. spaciousness
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Unit 10: Space travel
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It is merely of the universe an optical illusion of the moon ... appears considerably larger than it does.
A. who B. whose C. whom D. which
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.
Thus, although (danger) ..., it was required so as to push the spacecraft off the earth and into space.
Thus, although (danger) ..., it was required so as to push the spacecraft off the earth and into space.
Finish each of the following sentences in such a way that it is as similar as possible in meaning to the original sentences. Use the word given anh other words as necessary
1,The class watced a film yesterday.The film was about the Apollo 13 space mission
->The film
2.We are meeting an astronomer tonight.This astronomer has discovered three Earth-like planets
->The astronomer
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 …………………….
Rosetta is a(n) ... breaking space mission to land on a comet.
A. land B. soil C. ground D. earth
Often a team of engineers is ...
A. work on one project B. on one project work C. working on one project D. to work on one project
One of the largest ... found on Earth is the Hoba from southwest Africa, which weighs about 54000 kg.
A. meteorites B. meteoric C. meteors D. meteorite