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Dolphins are marine mammals closely related to whales. Along with whales, dolphins are descendants of above-ground mammals. There are almost forty species of dolphin are found worldwide. They are meat-eaters, eating mostly fish and squid. Dolphins are members of the family Delphinidae which evolved about ten million years ago.

Doplhins' senses are very developed. Most dolphins have sharp eyesight, both in and out of the water, and they can hear frequencies ten times or more above the upper limit of adult human hearing. Hearing is also used for echolocation, which all dolphins have. Dolphin teeth are believed to function as antennae to receive incoming sound and to pinpoint the exact location of an object. Beyond locating an object, echolocation also provides the animal with an idea on the object's shape and size, though how exactly this works is not yet understood. The dolphin's sense of touch is also well-developed, with free nerve endings densely packed in the skin, especially around the snout, pectoral fins and genital area. However, dolphins lack an olfactory nerve and lobes, and thus are believed to have no sense of smell. They do have a sense of taste and show preferences for certain kinds of fish.

Dolphins are capable of making a broad range of sounds using nasal air sacks located just below the blowhole. Individual dolphins communicate using a variety of clicks, whistle-like sounds and other vocalizations. The clicks are directional and are for echolocation, often occurring in a short series called a click train. The click rate increases when approaching an object of interest. Dolphin echolocation clicare amongst the loudest sounds made by marine animals.

1. Choose the correct answer:

To make a broad range of sounds dolphins use ….

A) sharp eyesight

B) skin

C) nasal air sacks

D) their teeth

E) sensitivity

2.Choose the correct answer:

All dolphins have ….

A) steam engine

B) random selection

C) temperature

D) barometer

E) echolocation

3.Choose the correct answer:

Dolphins communicate with the help of ….

A) printing

B) vocalizations

C) swimming

D) negotiations

E) interpretations

4. Choose the correct answer:

The only sense dolphins don’t have

A) sense of humor

B) sense of smell

C) sense of duty

D) ability to see

E) ability to hear

5. Choose the correct answer:

Human … is ten times or more … dolphins ability.

A) hearing/below

B) speaking/high

C) hearing/high

D) seeing/very high

E) listening/little

2 текст

Academy Awards

The Academy Awards, informally known as The Oscars, are a set of awards given annually for excellence of cinematic achievements. The Oscar statuette is officially named the Academy Award of Merit and is one of nine types of Academy Awards. Organized and overseen by the Academy of Motion Picture Arts and Sciences (AMPAS), the awards are given each year at a formal ceremony.

The awards were first given in 1929 at a ceremony created for the awards, at the Hotel Roosevelt in Hollywood. Over the years that the award has been given, the categories presented have changed; currently Oscars are given in more than a dozen categories, and include films of various types. As one of the most prominent award ceremonies in the world, the Academy Awards ceremony is televised live in more than 100 countries annually. It is also the oldest award ceremony in the media.

While the Oscar is under the ownership of the recipient, it is essentially not on the open market. Since 1950, the statuettes have been legally encumbered by the requirement that neither winners nor their heirs may sell the statuettes without first offering to sell them back to the Academy for US$1. If a winner refuses to agree to this stipulation, then the Academy keeps the statuette. Academy Awards not protected by this agreement have been sold in public auctions and private deals for six-figure sums.

6. Complete the sentence with the correct answer:

The Oscar is given ….

A) in every country

B) in London

C) Buckingham Palace

D) annually

E) monthly

7. Choose the correct answer:

Informally known as the Oscar are ….

A) Hotel Roosevelt

B) countries

C) the Academy Awards

D) American actors

E) British actors

8. Choose the correct answer:

The Oscar is essentially not on the open market because it is ….

A) British property

B) American country

C) under the ownership of the recipient

D) the partner of Great Britain

E) the place where they live

9. Choose the correct answer:

Neither winners nor their heirs …

A) may buy the statues without first offering to Academy

B) can introduce the statues without first offering to Academy

C) may sell the statues without first offering to Academy

D) may choose the statues among others

E) must change statues

10. Choose the correct answer:

What kind of ceremony is the Academy Awards?

A) one of the most moveable award ceremonies in the world

B) one of the most countable award ceremonies in the world

C) one of the most prominent award ceremonies in the world

D) one of the most suitable event in the world

E) one of the most changeable event in the world



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