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English Plus 4 Unit 5
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In 1969, the astronaut/alien Neil Armstrong became the first man to walk on the moon.
astronaut
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The (develop) of the internet has been very fast.
development
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Wild tigers are facing (extinct) because of habitat loss.
extinction
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He'll get home late if he (have) a lot of work.
has
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Pandas will disappear if we don't protect them. Unless...
Unless we protect pandas, they will disappear.
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If we don't stop destroying forests, many species will become extinct. Unless...
Unless we stop destroying forests, many species will become extinct.
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If there was no threat/gravity, Earth wouldn't exist.
gravity
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Levi Strauss was the (create) of the first jeans.
creator
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Water boils if you (heat) it to 100°C.
heat
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It's important to let children develop their (imagine|)
imagination
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The bright red UY Scuti is the biggest known death/star in our universe. It's more than 1,500 times bigger than the sun!
star
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The climate will change unless we take action now. If...
If we don't take action now, the climate will change.
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Earth is the only disease/ planet that has life.
planet
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The word alien/meteor comes from Greek, It means "high in the air and it refers to a piece of rock from outer space.
meteor
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Vasco da Gama was a famous Portuguese (explore)
explorer
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If I got the chance, I| (travel) into space.
would travel
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Humans are only one of the 8.7 million species/threats on Earth.
species
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(you / ban) experiments with animals if you were a politician?
Would you ban
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We won't find new drugs unless we do research. If...
If we don't do research, we won't find new drugs.
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If had designed this town, I (create) more parks.
would have created
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If (be) so tired, I'd have gone out last night.
hadn't been
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Many voyages of (discover) took place in the 1400s
discovery
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