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(Man) Here we are. Aren't they beautiful? You may also notice that these aquatic creatures don't have
scales. They are the most sociable of the marine mammals. Here comes Violet, our oldest. She is almost
twenty years old.
(Woman) What's their life span?
(Man) It's hard to say because individuals are almost impossible to track. But on the average, I'd say
about twenty-five years.
(Woman) Listen to them! They make so many noises.
(Man) That's how they communicate with one another. Some scientists even think that dolphins have
their own special language that allows them to warn one another, send messages, or signal the presence of a
predator. Eventually, zoologists hope to learn specifically how dolphins transmit information.
(Woman) Thank you for taking the time. I've learned so much today.
(Narrator)
Exercise 1 Answer the questions.
1 What is the main topic of this dialogue?
2 Where does this conversation take place?
3 How long do female dolphins stay with their young?
4 How do dolphins communicate?
Exercise 2 Translate from Russian into English.
1 Морские животные могут дышать с помощью и жабр, и легких.
2 Хищник долго выслеживал свою добычу и, в конце концов, он был вознагражден ужином.
3 Млекопитающие, живущие в воде, не могут долго оставаться под водой, в отличие от рыб.
4 Взрослые обучают малышей самостоятельно добывать пищу и защищать себя от опасностей.
5 Длительность жизни животного зависит во многом от условий, в которых живет животное.
First learn the words and word combinations by heart given below:
1) outdated [ ] – устарелый, уставший
2) sizable [ ] – порядочного размера
3) tricky [ ] – хитрый, находчивый, сложный, ненадежный
4) cite [ ] – ссылаться, цитировать
5) drawback [ ] – препятствовать, помеха, недостаток, отрицательная сторона, уступка (в
цене)
(Narrator) Questions below refer to the conversation about dictionaries.
(Man) I always recommend that my students use a dictionary when they are working on a paper or a
presentation. Dictionaries don't just give the meanings of words, but they also list information about word
origins. They also point out which words are literary words, used in formal writing, and which words are
colloquial or simply outdated.
(Woman) That's right. Dictionaries can supply a wealth of information. Last semester, in my reading class,
I encouraged students to look up idioms common in American English and foreign words borrowed from
other languages. In that class, we had to use dictionaries all the time.
(Man) Of course, one can't always rely on a dictionary, however good it is. When language learners
acquire a sizable vocabulary, they may need to switch from a general dictionary to a specialized one that in-
cludes technical terms. No dictionary contains all the words of a language.
(Woman) I must say, though, that using dictionaries can be tricky sometimes. If learners don't clearly un-
derstand how words are used but use them anyway, incorrect usage can make their speech or written assign-
ments incomprehensible. In general, there are very few true synonyms, and although dictionaries cite words
with similar meanings, these words may be used in completely different contexts.
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