- •1.Лексический модуль
- •2.Грамматический модуль
- •3. Тесты
- •Working with words
- •Working with word combinations and sentences
- •8. Rewrite these scrambled sentences putting the words in
- •9. Translate from Russian into English.
- •Working with texts
- •10. Read and translate the text.
- •Systematics
- •Light from Life
- •14. Text for translation into English. Text 4 Система живого мира
- •Speaking and writing
- •15.Make a report about any plant or animal, giving its classification.
- •16.Choose any of the following ideas (or propose your own), find information and write an essay (150-250 words).
- •1. Word building.
- •2. Make word combinations using the following words.
- •3. Match a word in a to its definition in b.
- •4. Choose the correct word to complete the sentences.
- •5. Give English equivalents to the following word combinations.
- •6. Match the beginnings and the endings of the sentences.
- •7. Read and translate the text.
- •8. Match a title to the paragraph.
- •9. Answer the questions to Text 1.
- •10. Read the texts using your dictionary.
- •11. Text for translation into English.
- •12.Make a report about any bacterium you find interesting and unusual. Write a plan first and do not forget to mention
- •13.Choose any of the following ideas (or propose your own), find information and write an essay (150-250 words).
- •1.Word building.
- •2.Match a word in a to its definition in b.
- •3.Choose the correct word to complete the sentences.
- •4.Translate these word combinations.
- •5.Find out the difference between synonyms and write sentences, illustrating it.
- •7.Translate from Russian into English.
- •8. Read and translate the text.
- •9. Match a title to the paragraph.
- •10. Using information from the text,
- •11. Read the texts using your dictionary.
- •12. Text for translation into English.
- •13. Make a report about any amphibian you find interesting and unusual. Write a plan first and do not forget to mention amphibian`s
- •14.Choose any of the following ideas (or propose your own), find information and write an essay (150 -250 words).
- •1.Write antonyms for the following words.
- •2.Write synonyms for the following words.
- •3.Match a word in a to its definition in b.
- •4.Choose the correct word to complete the sentences.
- •5.Give English equivalents to the following word combinations.
- •6.Match the beginnings and endings of the sentences.
- •7. Read and translate the text.
- •Insects
- •8.Look at the picture and, using information from Text1, label parts of the insect.
- •9. Match a title to the paragraph.
- •10. Answer the questions to Text 1.
- •11. Read the texts using your dictionary.
- •12. Text for translation into English.
- •13.Make a report about any insect you find interesting and unusual. Write a plan first and do not forget to mention insect`s
- •14.Choose any of the following ideas (or propose your own), find additional information and write an essay (150-250 words).
- •1.Look at the picture and label parts of the fish.
- •2.Word building.
- •3.Give opposite meaning to the words from the box and insert them in the sentences of your own.
- •4.Choose the correct word to complete the sentences.
- •5.Give English equivalents to the following word combinations.
- •6.Match a word in a to its definition in b. Write your own sentences with these words.
- •7. Match the beginnings and endings of the sentences.
- •8. Look at the pictures. What adaptations do these fishes have? Why?
- •9. Read and translate the text.
- •10. Answer these questions to Text 1.
- •11. Read the texts using your dictionary.
- •12. Text for translation into English.
- •13.Make a report about any fish you find interesting and unusual. Write a plan first and do not forget to mention fish`s
- •14.Choose any of the following ideas (or propose your own), find information and write an essay (150 - 250 words).
- •1.Word building.
- •2.Match an animal to a suitable group name.
- •3.Match a word in a to its definition in b.
- •4. Look at the picture and label parts of the bird.
- •5.Choose the correct word to complete the sentences.
- •6.Give English equivalents to the following word combinations.
- •7.Match a title and a paragraph.
- •8. Read and translate the text.
- •9. Match a title and a paragraph.
- •11. Read the texts using your dictionary.
- •12. Text for translation into English.
- •13.Make a report about any bird you find interesting and unusual. Write a plan first and do not forget to mention bird`s
- •14.Choose any of the following ideas (or propose your own), find information and write an essay (150 - 250 words).
- •1. Word building.
- •7. Separate parts of an animal from bear`s food.
- •8. Give English equivalents to the following word combinations.
- •9. If someone behaves a people say they are b.
- •10. Translate from Russian into English.
- •11. Read and translate the text.
- •12. Find key sentences in each paragraph.
- •13. Write a title to each paragraph.
- •14. Answer the questions to Text 1.
- •15. Read the texts using your dictionary.
- •16. Text for translation into English.
- •17.Make a report about any mammal you find interesting and unusual. Write a plan first and do not forget to mention mammal`s
- •18.Choose any of the following ideas (or propose your own), find information and write an essay (150-250 words).
- •1.Word building.
- •6.Give English equivalents to the following word combinations.
- •7.Match the beginning and the ending of the sentences.
- •8.Match a part of eye structure to its definition and its context.
- •9.Read and translate the text.
- •Invertebrates
- •10.Give a title to each paragraph.
- •11.Answer these questions to Text 1.
- •12. Read the texts using your dictionary.
- •13. Text for translation into English.
- •14.Make a report about any invertebrate you find interesting and unusual. Write a plan first and do not forget to mention invertebrate`s
- •15.Choose any of the following ideas (or propose your own), find information and write an essay (150 - 250 words).
- •1.Write another word with a similar meaning.
- •6.Label parts of the flower.
- •7.Give English equivalents to the following word combinations.
- •8.Translate into English.
- •9.Guess the meaning of the words from the context.
- •10. Read and translate the text.
- •11. Give a title to each paragraph.
- •12. Pair work. Ask and answer 6 questions to Text 1.
- •13. Read the texts using your dictionary.
- •Venus Flytrap
- •14. Text for translation into English.
- •15.Make a report about any plant you find interesting and unusual. Write a plan first and do not forget to mention plant`s
- •16.Choose any of the following ideas ( or propose your own), find information and write an essay ( 150-250 words).
- •1.Form nouns and adjectives from the verbs given. Pay attention to the suffixes.
- •2.Match definition in a to the word in b.
- •3. Look at the picture and label parts of the mushroom.
- •4.Choose the correct word to complete the sentences.
- •5.Give English equivalents to the following word combinations.
- •6.Read definitions and write names of the mushroom`s parts.
- •7. Explain the concepts given in your own words.
- •8. Read and translate the text.
- •9. Find key sentences in each paragraph.
- •10. Match a title with the passage.
- •11. Pair work. Ask and answer 6 questions to the Text 1.
- •12. Read the texts using your dictionary.
- •13. Text for translation into English.
- •14.Make a report about any fungus you find interesting and unusual. Write a plan first and do not forget to mention fungus`s
- •15.Choose any of the following ideas (or propose your own), find information and write an essay (150-250 words).
- •1.Word building.
- •2.Match a word in a to its definition in b.
- •3.Choose the correct word to complete the sentences.
- •4.Give English equivalents to the following word combinations.
- •5.We know that scientific ideas could be :
- •6.Translate into English.
- •7. Read and translate the text.
- •Ideas about evolution
- •8. Pair work. Ask and answer 6 questions to Text 1.
- •9. Summarize the information from the text about one of the concepts and add some additional data.
- •10. Read the texts using your dictionary.
- •11. Text for translation into English.
- •12.Make a report about any scientist you find interesting. There are several famous scientists mentioned in the article.
- •13.Writing
- •1.Use prefixes and form the new words.
- •2.Define the following words.
- •3.Choose the correct word to complete the sentences.
- •4.Give English equivalents to the following word combinations.
- •5.Make sure that you understand these verbs with prepositions and write sentences, incorporating them.
- •6. Translate from Russian into English.
- •7.Read and translate the text.
- •8.Give definitions to the following concepts from Text1.
- •9.Answer the questions to Text 1.
- •10. Read the texts using your dictionary.
- •11. Text for translation into English.
- •12.Make a report about any ecosystem you find interesting and unusual. Write a plan first and do not forget to mention ecosystem`s
- •13.Choose any of the following ideas (or propose your own), find information and write an essay (150-250 words).
- •1.Match a and b to make word combinations.
- •2.Word building.
- •3.Explain the following words.
- •4.Choose the correct word to complete the sentences.
- •5.Give English equivalents to the following word combination.
- •6.Define the following concepts.
- •7.Make sure that you understand these verbs with prepositions and write sentences, incorporating them.
- •8.Translate into English.
- •9. Read and translate the text.
- •10. Pair work. Ask and answer 6 questions to Text 1.
- •11. Find key sentences in each paragraph and give paragraphs appropriate titles.
- •12. Read the texts using your dictionary.
- •13. Text for translation into English.
- •14 Make a report about any problem, connected with extinction, you find interesting and unusual. Write a plan first and do not forget to mention
- •15.Choose any of the following ideas (or propose your own), find information and write an essay (150-250 words).
- •8. Read and translate the text.
- •9. Match a title to the part of the text.
- •10. Pair work. Ask and answer 6 questions to the Text 1.
- •11. Read the texts using dictionary.
- •12. Text for translation into English.
- •13.Make a report about any particular case of adaptation you find interesting and unusual.
- •14.Choose any of the following ideas (or propose your own), find information and write an essay (150-250 words).
- •1.Write synonyms to the following words.
- •2.Match a word in a to its definition in b.
- •3.Choose the correct word to complete the sentences.
- •4.Give English equivalents to the following word combinations.
- •5.Define the words in English and insert them in the sentences of your own.
- •6.Translate into English.
- •7.Explain in your own words these concepts.
- •8. Read and translate the text.
- •9. Match a title with the paragraph.
- •10. Pair work. Ask and answer 6 questions to Text 1.
- •11. Read the texts using your dictionary.
- •12. Text for translation into English.
- •13.Make a report about any endangered animal you find interesting and unusual. Write a plan first and do not forget to mention animal`s
- •14.Choose any of the following ideas ( or propose your own), find information and write an essay ( 150 – 250 words).
- •Infinitive/Gerund
- •It is… that (which, who).
- •Insert linking words from the box into the following sentences.
- •Insert linking words into the following texts.
- •1. Complete the table with singular and plural forms of nouns.
- •2. Match the adjectives with the nouns to construct word combinations. Use three of these word combinations in your own sentences.
- •3. Choose the correct word to complete the text. Be attentive! There are two odd words.
- •4. Give terms corresponding to the following definitions.
- •5. Explain the following terms.
- •6. Translate from Russian into English.
- •1. Complete the table with singular and plural forms of nouns.
- •2. Form adjectives from the following nouns. Sometimes more than one adjective can be formed. Use three of the received words in your own sentences.
- •3. Choose the correct word to complete the text.
- •4. Give terms corresponding to the following definitions.
- •5. Label parts of the fish.
- •6. Explain the following terms.
- •7. Translate from Russian into English.
- •1. Complete the word combinations with prepositions. Use three of the received word combinations in your own sentences.
- •2. Match the adjectives with the nouns to construct word combinations. Use three of these word combinations in your own sentences.
- •3. Choose the correct word to complete the text.
- •4. Give terms corresponding to the following definitions.
- •5. Describe any plant.
- •6. Translate from Russian into English.
- •1. Using different prefixes and suffixes create new words.
- •2. Match the verbs with the nouns to construct word combinations. Use three of these word combinations in your own sentences.
- •3. Choose the correct word to complete the text.
- •4. Explain the relationship between the following words.
- •5. Describe any ecosystem.
- •6. Translate from Russian into English.
- •1. Write synonyms and antonyms to the following words.
- •2. Make questions out of the words. Then answer them.
- •4. Explain the relationship between the following words.
- •5. Give terms corresponding to the following definitions.
- •6. Translate from Russian into English.
- •1.Put the verbs in brackets into Present, Past, Future Simple; Past Continuous or Present Perfect Passive Tense.
- •1.Future forms
- •2.Articles
- •3.Countable and uncountable nouns
- •1.Degrees of comparison
- •2.Conditionals
- •1.Modals
- •2.Emphasis
- •3.Passive
- •1.Sequence of Tenses
- •2.Reported Speech
- •3.Linking words
Light from Life
You can see some of the coolest lights ever being produced by an array of lifeforms, ranging from bacteria to fish. The word that describes these cool chemical lights is bioluminescence. "Cool" is correctly used here. In this amazing chemical reaction, nearly 100% of the energy is released as light, compared with only 10% for an electric light bulb. Just imagine if Thomas Edison could have accomplished this efficiency with the electric light bulbs he invented! The bulb in the lamp by which you are reading this article would then emit only light and not wasteful heat.
The biochemical "recipe" for cool light is much the same among the numerous types of organisms that can produce bioluminescence. The ingredients are luciferin, luciferinase, ATP, calcium or magnesium, and oxygen. Biologists think that bioluminescence evolved many times during the existence of life on Earth. Some scientists speculate that bioluminescence may have evolved when Earth's atmosphere began to accumulate oxygen. The free oxygen was toxic to some of the early inhabitants, and bioluminescence might have provided a pathway for detoxification.
Although the significance of bioluminescence is not always apparent in a particular organism, many uses have been demonstrated. Fireflies in the family Lampyridae use their cool tail lights for attracting the opposite sex. These cool lights can also be deceptive and can lead to a rendezvous with death for unsuspecting male fireflies. Female fireflies of the genus Photuris prey on males of different firefly genera by mimicking their flashing mating signals. When the amorous male responds to a female's return flash and arrives for the mating, he becomes her meal instead.
Bioluminescence can be used to startle or confuse, perhaps by temporarily blinding a potential predator. The flashlight fish has small cavities under its eyes that are jam-packed with bioluminescence bacteria. Some fungi use bioluminescence to advertise their presence and thus call attention to themselves.
Many species of marine plankton are also bioluminescent. While swimming or walking on the beach at night, you may have noticed a glow around you. Although it is not always understood why some organisms are bioluminescent, the simple fact that they are can have wide-ranging implications. The military is especially interested in understanding and predicting the locations of these bioluminescent plankton. Secret beach landings and silent-running submarines are easily revealed by the glow of these bioluminescent organisms.
Many genetic engineers are very interested in bioluminescence. What if it were possible to transfer genes that produce bioluminescence into organisms that do not bioluminesce? For example, what if pumpkins could be engineered to glow in the dark? Or if the bioluminescence gene could be used as a marker for tracking antibiotic resistance in various pathogenic bacteria? Bioluminescence is cool and can light up your life; it just depends on what species you are.