Test 7.2 B2
Unexplained mysteries
Match the words to form collocations.
| 1 press ... | ... force | |
| 2 supernatural ... | ... sightings | |
| 3 strange ... | ... disappearances | |
| 4 unexplained ... | ... system | |
| 5 solar ... | ... release | |
| 6 space ... | ... occurrences | |
| 7 UFO ... | ... exploration |
Mysteries & Civilizations
Complete the sentences with words from the list. There are 2 extra words.
· temples · concrete · carvings · fake · powers · remote
1 Archaeologists found prehistoric rock in a cave in the south of France.
2 The ancient temple was discovered near a village in the Amazon.
3 There is no evidence that extraterrestrial life exists.
4 The ancient Greeks built beautiful for their gods.
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Replace the words/phrases in bold in the sentences with words from the list in the correct form. There is 1 extra word.
2 The Ancient Greeks prayed to a large number of deities.
3 The Ancient Egyptian civilisation prospered for several centuries and produced great things.
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Choose the correct word.
1 Many people are waiting for a that there is alien life.
2 Do you know who the wheel?
3 How high is the of Kilimanjaro?
4 Have they the ancient ruins yet?
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Word formation
Complete the sentences with the correct form of the word in bold.
|
1 How many are there in the study? 2 Did you know that Denis is a architect? 3 Jane would like to become a medical . 4 Dr Norton keeps coming up with theories about UFOs. |
PARTICIPATE QUALIFY RESEARCH INTRIGUE |
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Phrasal verbs
Replace the word/phrase in bold with a suitable phrasal verb from the list in the correct form. There is 1 extra word.· put forward · come across · pass out
1 If I ever saw an extraterrestrial, I think I would collapse.
2 The fisherman found an ancient tomb while fishing off rocks.
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Prepositions
Choose the correct preposition.
1 There are people constantly trying to communicate extraterrestrials through the airwaves.
2 There is a certain amount of controversy research into artificial intelligence.
3 A spacecraft is said to have fallen out of the sky and crashed a field.
4 The archaeologist explored the forest in search the ancient ruins.
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Comparisons
Put the adjectives in brackets into the correct form, adding any necessary words.
1 Do you know what (fast) aircraft is?
2 I think medical research is (important) space exploration.
3 Notre Dame is considered one of (great) gothic structures in Europe.
4 A: Shall we leave soon?
B: Sure! The (early) we leave, the (good).
5 A: Let’s take a taxi.
B: No, the underground will cost us (little).
6 A: Does anyone know what happened?
B: No, it’s just (mysterious) as all the other disappearances.
7 A: So everyone agrees then?
B: Yes, it is (widely) accepted theory in the world.
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Choose the correct item.
1 Space shuttle technology is becoming advanced.
2 The Inca empire expanded more than any other empire at that time.
3 I am not impressed by alien stories as as you are.
4 The we stay, the more time we can spend visiting the ancient ruins.
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Complete the second sentence so that it means the same as the first.
1 That book was the cheapest in the shop. It was expensive book in the shop.
2 He is among the top scientists in the world. He is one scientists in the world.
3 Archaeologists around the world appreciate that type of artefact more than any other.
That type of artefact is of all.
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Clauses
Join the sentences using the words in brackets.
1 He bought a telescope. He wanted to observe the stars at night. (so as to)
2 The launch of the shuttle was postponed. The weather was bad. (due to)
3 The Antikythera Mechanism is a complex mystery. No one really knows what it was used for. (such a ... that)
4 Stephen talks. He thinks he was really abducted by aliens. (as if)
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Everyday English
Choose the correct response.
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Listening
Listen to the radio programme about Being a Beast by Charles Foster and do the exercise. Open the link in new tab.
bd748f642cf8b253d59c-5c160b94f727c0d27cbeccc854542bc6.ssl.cf1.rackcdn.com/7_teens_-_listening_skills_practice_-_c1_-_man_or_beast.mp3
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Could a meteorite collision really mean the end of life on Earth? Read this to find out what happens when small meteorites collide with Earth, and just how much damage a big one could do.
The end of life on Earth?
It weighed about 10,000 tons, entered the atmosphere at a speed of 64,000km/h and exploded over a city with a blast of 500 kilotons. But on 15 February 2013, we were lucky. The meteorite that showered pieces of rock over Chelyabinsk, Russia, was relatively small, at only about 17 metres wide. Although many people were injured by falling glass, the damage was nothing compared to what had happened in Siberia nearly one hundred years ago. Another relatively small object (approximately 50 metres in diameter) exploded in mid-air over a forest region, flattening about 80 million trees. If it had exploded over a city such as Moscow or London, millions of people would have been killed.
By a strange coincidence, the same day that the meteorite terrified the people of Chelyabinsk, another 50m-wide asteroid passed relatively close to Earth. Scientists were expecting that visit and know that the asteroid will return to fly close by us in 2046, but the Russian meteorite earlier in the day had been too small for anyone to spot.
Most scientists agree that comets and asteroids pose the biggest natural threat to human existence. It was probably a large asteroid or comet colliding with Earth which wiped out the dinosaurs about 65 million years ago. An enormous object, 10 to 16km in diameter, struck the Yucatan region of Mexico with the force of 100 megatons. That is the equivalent of one Hiroshima bomb for every person alive on Earth today.
Many scientists, including the late Stephen Hawking, say that any comet or asteroid greater than 20km in diameter that hits Earth will result in the complete destruction of complex life, including all animals and most plants. As we have seen, even a much smaller asteroid can cause great damage.
The Earth has been kept fairly safe for the last 65 million years by good fortune and the massive gravitational field of the planet Jupiter. Our cosmic guardian, with its stable circular orbit far from the sun, sweeps up and scatters away most of the dangerous comets and asteroids which might cross Earth’s orbit. After the Chelyabinsk meteorite, scientists are now monitoring potential hazards even more carefully but, as far as they know, there is no danger in the foreseeable future.
Types of space rocks
- Comet – a ball of rock and ice that sends out a tail of gas and dust behind it. Bright comets only appear in our visible night sky about once every ten years.
- Asteroid – a rock a few feet to several kms in diameter. Unlike comets, asteroids have no tail. Most are too small to cause any damage and burn up in the atmosphere. They appear to us as ‘shooting stars’.
- Meteoroid – part of an asteroid or comet.
- Meteorite – what a meteoroid is called when it hits Earth.
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