are some species that prefer a slightly warmer climate. The Galapagos penguin, for example, resides far north near the Galapagos Islands.
D. Penguins primarily communicate vocally, but they also communicate through body language and posturing. Penguins all look virtually identical, which makes individual recognition very difficult. To overcome this, penguins have evolved different sounding voices and the ability to recognize the individual voices of their mates or chicks. This allows the birds to recognize and find their mates or chicks among the masses, which all look the same. Besides, penguins produce different types of calls.
E. While penguins do not fly, they are incredible swimmers. In 2012, scientists managed to discover at last that the reason why Emperor penguins are able to swim so quickly through the ocean is not only because of the feathers on their flippers but also because of bubbles. It is surprising to learn about the bubbles penguins use to coat their bodies as they swim through the water. This coating of bubbles makes them more slippery and they are able to slide through the water at top speeds of 12 to 77 feet per second.
F. Penguins catch their food while swimming in the ocean. Penguins primarily eat fish, squid and krill that they catch with their sharp beaks. Over their evolutionary history, the ancestors of modern penguins lost their ability to fly in exchange for becoming extraordinary swimmers. Penguins are among the most skilled fish-eating animals in the world, which is necessary to fuel their high caloric needs. In contrast to cold-blooded fish, penguins must eat a lot to heat their bodies internally in cold weather.
G. Penguins are not mammals, even though they are warm-blooded animals. Penguins are one of only a few species of flightless birds left in the world. Many people mistakenly believe penguins have fur instead of feathers because of the tight packing of feathers on their bodies. Most birds could not survive the frigid temperatures, but penguins store ample fat reserves that protect them in the water. They have the tightly-woven feathers that protect them on land, and they stand in huddles to share body warmth.
Ответ:
A
B
C
D
E
F
G
11 Прочитайте текст и заполните пропуски A–F частями предложений, обозначенными цифрами 1–7. Одна из частей в списке 1–7 лишняя. Занесите цифры, обозначающие соответствующие части предложений, в таблицу.
Do jellyfish sleep?
Worms and fish do it. Birds and bees do it. But do jellyfish fall asleep?
It was after midnight A__________ where the jellyfish were kept. They left the lights off and walked through the room by the glow of their cellphones. The students did not tell anyone that they were doing this. The secret they were keeping was a “totally crazy” experiment aimed at finding out whether jellyfish sleep.
A few weeks before, B__________ whether jellyfish needed to sleep. “Of course not,” said one of them. “Sleep helps C__________. Jellyfish are so simple they don’t even have brains. How could they possibly share the need to sleep?” The others weren’t so sure, but they wanted to find out.
The three students designed an experiment to test different behaviors and see if the jellyfish were asleep. They watched the animals to see how they moved, and D__________ when they were resting. It turned out that the jellyfish moved about 30 percent less at night. It was also harder to get their attention.
Months of late-night studying led to amazing results. Young scientists reported E__________ sleeplike behavior. This made it the first animal without a brain known to do so. The results suggest F__________ life, as the jellyfish group of animals first arose about 700 million years ago, and has stuck with us ever since.
1. if they could get the jellies’ attention
2. how talkative they were in a situation close to
3. when three science students crept into the lab
4. that sleep evolved early in the history of animal
5. strengthen memory and keep the brain healthy
6. that the upside-down jellyfish Cassiopea showed
7. the students were having coffee and started debating
Ответ:
A
B
C
D
E
F
Прочитайте текст и выполните задания 12–18. В каждом задании запишите в поле ответа цифру 1, 2, 3 или 4, соответствующую выбранному Вами варианту ответа.
Highlands Express
The journey began on a September evening in London as a black cab rushed me to Euston station. I had a weekend to myself, and I meant to make the most of it by hitting the famous Highlands of Scotland on a Caledonian Sleeper, a working train also affectionately known as the Deerstalker Express. I saw it as an escape from hectic city life.
A train is a very public place, but a berth on the sleeper is one of the most private. I was shown to my little first-class cabin – a little bed, little basin, window, night light and an extra blanket, trim as a toy house. I took a nibble in the comfortable, modern dining car, and retired to bed. London had slipped away, and it was black out there. I pulled the blind, put out the lamp, and arranged myself for sleep.
The train pulled into the station at 9:43 a.m. The centre of Fort William, I quickly learned, is but a street of fishing and hiking shops, with a spiky Victorian church, a handsome stone hotel, and a lake running alongside it. Before I took a cab to the hotel, I wandered up High Street to find the local paper and a cup of tea. A few hours later, I found myself standing up to my knees in the River Lochy, fishing with the expert assistance of a local guide, Martin Brown. The hotel staff was quite helpful and had arranged the outing with Martin. My aim was to learn the basics of fly-fishing. While Martin effortlessly handled yards and yards of fishing line so that his fly touched a small pool across the river, I splashed my fly into the river a few yards off. My first few casts were a mess, but I gradually improved. Soon, I hooked something. The rod grew heavy and lively. Eventually, I got very cold feet and aching arms and some sense of the pleasures of fishing, just as I had hoped.
That evening, after Martin dropped me off at the hotel, I found a place to sit among the armchair atolls in the oceanic great hall. Later, I was summoned to my table in one of the dining rooms, walls hung with prints. My meal was unassuming but tasty. I had a bit of meat pie, and a bit of cheese.
The following morning, I struck out on the well-marked walk that takes just a few hours but plunges you immediately into the grandeur of the Highlands. In the distance I saw an odd sight: a group of hikers dancing madly about the stream, waving their arms and shaking their heads.
I spread my coat on the grass and settled down to my picnic – superior crab sandwiches provided by the hotel. In a moment, I was on my feet, slapping my face and rubbing my hair while grabbing up my sandwiches