Nội Dung Chính
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UNIT 12 WHICH IS THE BIGGEST PLANET?
SIMPLE PRESENT (PRESENT ACTIONS) |
The Earth orbits the Sun. The Moon doesn't have an atmosphere. |
SIMPLE PRESENT (FUTURE ACTIONS) |
The rocket takes off in 30 minutes. The ship stops at the space station tomorrow afternoon. |
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PRESENT PROGRESSIVE (PRESENT ACTIONS) |
The astronauts are waiting for takeoff. Voyager 1 is exploring beyond our solar system now. |
PRESENT PROGRESSIVE (FUTURE ACTIONS) |
They are starting their training next week. The astronauts are giving a presentation to some students on Friday. |
FUTURE WITH WILL |
Space tourism will become common in the future. The comet landing will give scientists important data to study for many years. |
SIMPLE PAST |
The scientist William Herschel discovered Uranus in 1781. The lander touched down on the comet in 2014. |
PAST PROGRESSIVE |
Apollo 13 was traveling to the moon when there was an accident. NASA was planning to launch last Saturday but they delayed it. |
USED TO |
Pluto used to be a planet, but it's not called a planet anymore. Scientists used to think Venus was like Earth. |
PRESENT PERFECT |
People have looked up at the stars for thousands of years. I have read many books about space and space travel. |
FIRST CONDITIONAL |
If we build a space station on Mars, we will learn a lot. Your body can become weak if you spend a long time in space. |
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