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VII. Fill in the blanks in the sentences below with the words from the previous exercise putting them in the appropriate forms

1. In the Galápagos Islands, Charles Darwin noted how species on the various islands were similar but _______ from one another.

2. A full moon _______ over the valley.

3. Creating animals with genetic defects _______ challenging ethical questions.

4. The chairman _______ from his chair and came forward to greet her.

5. As night fell, the outline of the mountain became less _______.

6. The concert has been organized to _______ money for charity.

7. When a conflict _______ in the workplace, you should aim to repair the relationship as quickly as possible.

8. The most _______ feature of the building is its enormous dome-shaped roof.

9. Ambitious people often _______ to the top in their chosen professions.

10. Most of the world's people, including Americans, get the bulk of their food from crops and livestock _______ in areas where they did not originate.

11. Different species _______ when, for one reason or another, members of a population cease to interbreed.

12. His sister _______ horses in Colorado.

13. Male birds of this species have _______ blue and yellow markings.

14. Low achievements at school often _____ from poverty and bad social conditions.

15. In evolution successful creatures possess a perfecting principle, that enables them to _______ to meet the demands of their world.

16. I have a _______ memory of my grandma sitting in the rocking chair, knitting.

17. _______ your hand if you know the right answer.

GRAMMAR IN USE: WORD FORMATION 2

I. Many new words in the English language are formed by means of prefixes. Look at the prefixes below. What meanings do they add to words?

Co-, dis-, in-, im-, ir-, mis-, over-; pre-, re-, sub-, un-, super-, extra-, de-, macro-, micro-, semi-, anti-, mono-, multi-, uni-, poly-.

II. Match the following words with the prefixes from the previous exercise. Some of the words can take several different prefixes. What is the meaning of the resulting words?

Soluble; saccharide; existing; production; populated; natural; biology; organism; body; regular; approve; aware; cellular; understand; operation; matter; possible; vertebrate; system; ability; meter; molecule; conception; terrestrial; circle; infect; weight; conductor; rational; operate; believable.

III. Some of the English words consist of two or more components that function as one word. Match the words from the left and right columns to form such nouns or adjectives making necessary changes. Use these words in your own sentences

LISTENING COMPREHENSION

I. Listen to the following piece of information about origin of the eukaryotes. Choose the correct options to complete the statements below. In some cases more than one answer is possible. Before listening discuss the meaning of the words in the box below with your classmates or teacher

1. Among the cell organelles that contain their own ribosome and DNA are:

a) chloroplasts; b) lyzosomes; c) vacuoles.

2. The attempts to grow mitochondria in culture out of cells

a) have been successful;

b) have never produced the expected result;

c) have never been made.

3. Eukaryotic cells appeared on earth

a) 2 billion years after prokaryotes;

b) 3 million years after prokaryotes;

c) 2 billion years ago.

4. According to Lynn Margulis, Boston University, about a billion years ago earth was inhabited

a) by photosynthetic prokaryotes;

b) by several types of prokaryotes;

c) by prokaryotes and first eukaryotes.

5. According to Lynn Margulis, Boston University,

a) some prokaryotes “infected” others;

b) some prokaryotes were parasites that lived within others;

c) Some prokaryotes got engulfed by others and survived within them

6. The endosymbiotic theory is incomplete because

a) it does not account for a number of features that distinguish eukaryotes from prokaryotes;

b) chloroplasts and mitochondria lack nuclei;

c) mitochondria and chloroplasts are not the only organelles within the eukaryotic cell.

7. The endosymbiotic theory

a) will soon be rejected as inconsistent;

b) has already been accepted as true;

c) can be further improved and developed.

Читайте також:

1. A) COLLOQUIAL WORDS
2. Analyze the meanings of the italicized words. Identify the result of the changes of the connotational aspect of lexical meaning in the given words.
3. Archaic, obsolete and historic words
4. Basic qualities of the perfect forms
5. Choose any newspaper and complete the following sentences.
6. Combine the following words into sentences.
7. Compare the meanings of the given words. Define what semantic features are shared by all the members of the group and what semantic properties distinguish them from each other.
8. Complete the sentences with the correct word in brackets.
9. Complete the sentences.
10. Complete with the words from the text. Translate them into Ukrainian.
11. Compose sentences in English using the word-combinations from Ex. 8.
12. Compose sentences with the words and word-combinations from Ex. 10.

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