- •Texts: origin of life. Properties of chemical reactions pre-reading and reading tasks.
- •Origin of life
- •Notes to the text: Aristotle ["xrIs'tq(V)tl]
- •John Tyndall [dZPn tIndl]
- •Comprehension check
- •3. Point out the topic sentence in each paragraph. Language focus Form the derivatives of the words given in the chart below (where possible):
- •Follow-up activities
- •Additional text
- •I. Read and translate the text. Be ready to fulfil the tasks that follow. Properties of chemical reactions
- •Post-reading tasks
- •Grammar exercises
- •Texts: the cell. Cells pre-reading and reading tasks.
- •1. Study the meaning and pronunciation of the following words:
- •2. Make sure you know the following words and word combinations:
- •3. Comment on the headline of the text before reading it. What do you know about the cell? Read the text and point out what information is new for you. The cell
- •Notes to the text:
- •Comprehension check
- •Language focus
- •1. Say it in another way (give synonyms):
- •Follow-up activities
- •Additional text
- •Post-reading tasks
- •Grammar exercises
- •Texts: how the body works. The skin. Seeing. Taste and smell. Hearing. Pre-reading and reading tasks
- •How the body works
- •Comprehension check
- •1. Agree or disagree with the following:
- •2. Answer the questions:
- •Language focus
- •Follow-up activities
- •Additional texts
- •The skin
- •Taste and smell
- •Hearing
- •Imagine that you are making a speech on one of these topics:
- •Grammar exercises
- •Texts: the brain. Pre-reading and reading tasks.
- •1. Practise the pronunciation and study the meaning of the words:
- •The brain
- •Comprehension check
- •1. Express your agreement or disagreement with the following:
- •Language focus.
- •3. Translate the following sentences from Russian into English:
- •Follow-up activities
- •Additional text
- •The brain
- •Post-reading tasks
- •Grammar exercises
- •Texts: the nerves. The nervous system. Pre-reading and reading tasks
- •The nerves
- •Comprehension check
- •Language focus
- •3). Translate the sentences into English using the vocabulary of the unit:
- •Follow-up activities
- •Additional text
- •The nervous system
- •Post-reading tasks
- •Grammar exercises
- •Texts: the skeleton and muscles. Bones and muscles. Pre-reading and reading tasks
- •The skeleton and muscles
- •Comprehension check
- •Language focus
- •Follow-up activities
- •Additional text
- •Bones and muscles
- •Post-reading tasks
- •Grammar exercises
- •Texts: the blood system. Blood. Pre-reading and reading tasks
- •2. Try to guess the meaning of the following words and word combinations:
- •3. Read the text carefully to fulfil the tasks that follow. The blood system
- •Comprehension check
- •Language focus
- •In each box below match the words which are: a) similar or b) opposite in meaning:
- •Follow-up activities
- •Additional text
- •Post-reading tasks
- •Grammar exercises
- •Texts: the digestive system. Nutrition. Pre-reading and reading tasks
- •2. Make sure you know the meaning of these words and word combinations:
- •3. Read the text carefully to fulfil the tasks that follow. The digestive system
- •Comprehension check
- •Language focus
- •Follow-up activities
- •Additional text
- •Nutrition
- •Post-reading tasks
- •Imagine that you are making a speech on the topic “Nutrition”. Grammar exercises
- •Pre-reading and reading tasks
- •Viruses and subviruses
- •Viruses
- •Subviruses
- •Comrehension check
- •Viruses contain
- •Viruses do not
- •Viruses that attack only bacteria are known as … .
- •It is possible that viruses may be moving genetic material from
- •Viruses may prove, in some cases, to be the simplest of
- •3. Think of 5-7 statements that would contradict the contents of the text. Language focus
- •3. Define the following terms:
- •4. Match the first half of a sentence in column a with the appropriate second half in column b:
- •5. Put the parts of the sentences in the right order:
- •Unit 10
- •Text: monera pre-reading and reading tasks
- •1. Make sure you know the following words:
- •2. Read and translate the text. Monera
- •Comprehension check
- •Follow-up activities
- •1. Prepare a dialogue with your partner discussing:
- •Grammar exercises
- •Unit 11
- •Text: protista. Pre-reading and reading tasks
- •1. Make sure you know the following words:
- •2. Read and translate the text. Protista
- •Comprehension check
- •1. Choose the right variant for the multiple-choice statements.
- •1. All protists
- •2. Ask questions revealing the main points of the text.
- •3. Think of 5-7 statements that would contradict the contents of the text. Language focus
- •Follow-up activities
- •1. Prepare dialogues discussing: a) general information about the kingdom Protista; b) primitive protists; c) true algae; d) unicellular algae.
- •2. Prepare a report on the topic under discussion. Grammar exercises
- •Unit 12
- •Text: fungi pre-reading and reading tasks
- •1. Make sure you know the following words and word combinations:
- •Comprehension check
- •7. Many true fungi have mycelia that grow in a close, intimate manner with plant roots, where the plants benefit by receiving … and … while the fungus benefits by receiving nutritious … .
- •8. Lichens involve the close association of a … and a … .
- •9. When the hyphae of a fungus grow around, sometimes in between, and even within living plant root cells, the association is … .
- •2. Questions to think about.
- •3. Think of 5-7 statements that would contradict the contents of the text. Language focus
- •1. Match the words that are: a) similar and b) opposite in meaning:
- •1. Name and describe: a) the major groups of fungi; b) the ways of fungal nutrition.
- •2. Prepare a report on the topic under discussion. Grammar exercises
- •Unit 13
- •Text: plant kingdom: plantae. Pre-reading and reading tasks.
- •Plant kingdom: plantae
- •Comprehension check
- •Language focus
- •Follow-up activities
- •1. Explain the terms: Chlorophyta, Phaeophyta, Rhodophyta.
- •Grammar exercises
- •Unit 14
- •Texts: coniferophyta: conifers. Anthophyta / angiosperms: flowering plants. Pre-reading and reading tasks
- •2. Read and translate the text. Coniferophyta: conifers
- •Anthophyta / angiosperms: flowering plants
- •Comprehension check
- •2. Ask questions revealing the main points of the text.
- •3. Think of 5-7 statements that would contradict the contents of the text. Language focus
- •1. Match the words that are: a) similar and b) opposite in meaning:
- •Follow-up activities
Follow-up activities
Name different constituents and types of our nervous system and define their functions.
Discuss the following problem in pairs: The nervous system plays the leading role in the regulation of all physiologic processes in a complex organism.
Write an essay about our nervous system.
Additional text
Read the text carefully to fulfil the tasks that follow.
The nervous system
Neurons are among the most excitable cells in the body. As a group, they respond to a wide range of electrical, chemical, thermal, or mechanical stimuli, transmitting messages to one another, to muscles, and to endocrine organs (hormone-secreting glands). Together, all the neurons and their supporting cells (glial cells) compose the central nervous system.
Neurons do not exist in sponges (phylum Porifera) or more primitive organisms. The first neurons appear among the coelenterates (phylum Cnidaria), which include jellyfish, hydra, and anemones. Of all living organisms, coelenterates have the simplest nervous arrangement, with only two types of nerve cells: receptor-conductor cells (those that respond to the stimulus and pass it on) and effector cells (those that contract when the stimulus reaches them). They have none of the alternative types that allow for the increased flexibility of response typical of higher organisms.
As the neurons in a nervous system increase in number, so does the complexity of behavioral responses an animal can have. Since one neuron communicates with nearby neurons, which in turn communicate with other neurons, the total number of possible neuron connections increases exponentially as the total number of neurons increases.
A roundworm (phylum Nematoda) is an organism that moves very little. It has only about 160 neurons. The leech (phylum Annelida), slightly more mobile, has about 13,000 nerve cells. An octopus (phylum Cephalopoda), which has considerable control over its movements and behavior, has over 1 billion neurons. And humans (phylum Chordata) have more than 10 billion neurons.
Changes in the physical or chemical environment (i.e., due to motion, sound, light, heat, or chemicals) can be converted into nervous impulses. The environmental change is known as the stimulus, and the neuronal response is the neural impulse. When part of the nervous system receives a neural impulse, it may respond by sending another impulse to the appropriate effectors. Many effectors are muscles, which respond by contracting. However, there are many other types of effectors, such as photoreceptor cells or glandular cells. In addition, the nervous impulse may reach another neuron, which triggers it to the next neuron, and so on, although such an impulse may eventually dissipate to the point that it can no longer elicit a response from an effector.
Post-reading tasks
Give the definition to the concept “neural impulse” and explain its function.
Sum up what you have learned about neurons and prepare a report on the topic: “The neuron is an essential constituent of the central nervous system in organisms of different types”.