Дам 25б 1 Listen and read the sentences. Choose the correct answer. 1) Last year Rustam was: a) in Tashkent b) in the mountains c) on the beach
2) Brighton is to the … of London.: a) north b) east c) south
3) Last summer Antony was on holiday with his: a) parents and sister b) parents c) little sister
4) The weather in Brighton was: a) wet b) warm and wet c) dry and hot
5) Brighton is … : a) not far from Tashkent b) not far from London c) far fromLondon
2 Read and match the descriptions and animals.
a) emu b) koala c) crocodile d) wombat e) kangaroo
1) This animal can jump more than four metres and travel at seventy kilometers an hour.
2) This animal lives in the seas and rivers of northern Australia. It is five or six metres long. It eats fish, animals, kangaroos and, sometimes, people.
3) This animal is a kind of bear with a pocket of skin in whichit carries its baby.
4) This animal eats one kilo of eucalyptus leaves each day and does not drink water.
5) This animal is two metres tall and is the second largest bird in the world. It cannot fly, but it can run at fiftkilometers an hour.
3 Choose the correct answer. (10x2=20)
1) I … five hours of TV this week.
a) watching b) watched c) have watched
2) How many lessons … you … yesterday?
a) did/ have b) has /have c) have/had
3) What time … you … every day?
a) did/got up b) do/get up c) have/got up
4) Who do you go … holiday with?
a) on b) for c) in
5) I’d like to see animals. I … to the zoo tomorrow.
a) has gone b) went c) will go
6) … your little brother like watching cartoons?
a) Do b) Does c) Has
7) There … a lot of interesting books in the library.
a) is b) are c) have
8) My friend is good … mathematics.
a) in b) on c) at
9) Swimming? I don’t want to go swimming. … watch TV.
a) I want b) I’d rather c) I must
10) Does your brother like … stamps?
a) collecting b) collects c) collected
4 Read and put the parts in order. (5x2=10)
A) The next day the girls were wearing jeans. They climbed thetree and went into the house. There were no people in the house. They found their ball under a bed. But next to the ball there was a gold bar!
B) The girls went to the police and gave them the gold bar. They told them about the house. The police took the bad men. They gave the girls a special prize. It was a collection of interesting books.
C) One day Ema and her friend were playing with a ball in the yard and the ball went into a man’s house. The girls went to the man and asked him to give them the ball. He said “No”. The girls did not know what to do.
D) The girls took the ball and the gold bar and climbed up the tree again. When they went home they heard the news on TV. They said that 20 gold bars were taken from the bank.
E) Suddenly, Ema had an idea. “There’s a tree behind this house”, she said. “We can climb the tree and jump over the wall.” But the girls couldnot climb because they were wearing skirts. They decided to come back later.

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Golovina077

15.05.2020 04:21

So why did a change in climate 36,000 years ago drive the Siberian unicorn extinct, but not the woolly rhinoceros or the saiga?

To answer this question, our study took fossil bones from the Siberian unicorn, woolly rhino, and saiga, and looked at the nitrogen and carbon they contained — as differences in these elements reflect an animal's diet.

We found that before 36,000 years ago the saiga and the Siberian unicorn behaved very similarly, eating grass almost exclusively. After this point, the carbon and nitrogen in saiga bones showed a major dietary shift towards other plant types.

But shifting from a grass diet proved too difficult for the Siberian unicorn, with its special folded wear-resistant teeth and a low-slung head right at grass height.

Relatives such as the woolly rhino had always eaten a more balanced array of plants, and were much less impacted by a change in habitat.

Importantly, the change in climate that drove the Siberian unicorn extinct was actually much less pronounced than those which occurred during the Ice Age that followed. Or the changes that we will face in the near future.

The story of the Siberian unicorn is a timely reminder that even subtle changes in plant distributions can have devastating knock-on effects for large animal species.

Legends of the unicorn, or a beast with a single horn, have been around for millennia.

Some have argued that the horn of the rhino may have been the basis of myths about unicorns, although other animals - such as the tusked narwhal - are more likely contenders.

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