C: - OK. I see. Who are ecologists in general?

E: - Ecologists study the relationships between living things and their environment. They can be teachers or research scientists. Ecologists may work at zoos and aquariums.

Grammar Issues to Be Revised

1. Present Simple. 2.The noun.

1. In the list of given words find those used in Present Simple.

Have isolated, sends, managed, become, didn't give, will affect, don't respect, isn't, has treated, has, had defined, uses, was destroying, doesn't help, will be making, are, have been interacting, am.

2.Make the sentences negative.

1.Students of our group understand the meaning of the word "habitat".

2.We are future ecologists.

3.Our department is doing well.

4.Ecology gives understanding of nature's structure.

5.Our actions affect our shared recourses.

3.Make up questions of the following set of words:

1.does what mean ecology?

2.ecologists do study what ?

3.ecology of organisms the study and their relationship with their surroundings is?

4. ecology does give of nature's structure and function an understanding changes over time?

4. Say that he, she, it does the same. Model: I want to study ecology.

He wants to study ecology too.

1.We recognize that even small local events can have global consequences.

2.Inexpensive computer systems help with their work.

3.Companies sometimes employ inexperienced ecologists.

4.Not all the people are fond of today ecological situation.

5.We often use financial data in our work.

5.Use the verbs in brackets in Present Simple.

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11. Determine form (singular or plural) of the following nouns:

Fungi, organisms, species, animals, fish, land, life, bodies, deer, mice, monkey, milk, supply, sheep, oxen, sources, bacteria, data, analysis, nucleus, phenomena, stimulus, crisis.

13. Choose the correct verb form:

1.Some people never do/does any exercise.

2.Physics was/were my best subject at school.

3.There is/are a pair of socks under the bed.

4.Fortunately the news wasn’t/weren’t as bad as we had expected.

5.His new clothes was/were very expensive.

6.Tree days isn’t/aren’t long enough for a good holiday.

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7.I can’t find the stairs in this building. Where is/are they?

8.Does/Do the police know about the stolen money?

9.The police is/are looking for the criminal.

10.I’m going to take a taxi. Six miles is/are too far for me to walk.

11.Your hair need/needs cutting.

12.There was/were a lot of people at the cinema last night.

13.My shorts is/are made of silk.

14.Do the grammar test.

1.He …….. how to use the card catalog in the library.

UNIT 2

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