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SCERT Assam Class 8 English Lesson 5
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Louis Pasteur
Lesson 5
ACTIVITIES
Q. 1. Answer the following questions to check your understanding:
(a) What happened one day while Louis Pasteur was playing with his friends?
Answer— One day while Louis Pasteur was playing with his friends, he saw a man come running towards him and the man was very frightened. When Louis asked about the matter, the man told that someone had been bitten by a mad wolf from the mountain. Louis knew that the wolf was suffering from rabies.
(b) What does rabies cause in human beings?
Answer— Rabies is a viral disease that causes inflammation of the brain in humans and other mammals.
(c) What experiments did Pasteur conduct on rabbits?
Answer— Pasteur treated the ailing rabbits by injecting them with the same virus and succeeded in curing them.
(d) Who was Pasteur’s first human patient? Was his treatment successful?
Answer— A school boy was Pasteur’s first human patient. Yes, his treatment was successful.
(e) When and where did the French government establish the Pasteur Institute? What is it famous for?
Answer— In Paris 1888 the French government established the Pasteur Institute.
It is famous for the study of biology, micro-organisms, disease and vaccines.
Q. 2. You must have noticed that the lesson has many words related to diseases. Read the lesson carefully and note down all these words in the word web below. One has been done for you.
Answer—
Q. 3. Here are five friends sharing information about diseases Complete dialogues with information from the lesson.
(a) Puja: Beware of animal bites …………………………………………………………………………………………………….
Answer— Puja: Beware of animal bites they may cause rabies.
(b) Rohan: Measles is a deadly disease. It can lead to ………………………………………………………
Answer— Rohan: Measles is a deadly disease. It can lead to Pneumonia, Diarrhoea and other life threatening complications.
(c) Pushpa: Rubella infection can lead to ………………………………………………………
Answer— Rubella infection can lead to blindness, deafness, mental retardation and congenital heart defects.
(d) Jumon: The anopheles mosquito ………………………………………………………
Answer— The anopheles mosquito is a carrier of malaria.
Q. 4. Do you know what a flowchart is? It is a diagram that shows how one thing leads to the next. Read the lesson once again and complete the flowchart to show the chain of events. The first entry has been inserted for you.
Answer—
| Pasteur sees a man bitten by a mad wolf. |
⇓
| The man suffers from rabies. |
⇓
| It causes the inflammation of his brain. |
⇓
| He goes mad. |
⇓
| He dies of the deadly disease. |
Q. 5. Here are some sentences from the lesson.
A man came running towards Louis Pasteur. The man was very frightened. “What is the matter?” Louis asked him. Someone has been bitten by a mad wolf from the mountain.
Look at the words printed in italics.
Can you recall which grammatical structure is represented by the words initalics. Fill in the blank spaces provided below to give the answer.
The words printed in italics are in the P__________ voice.
Answer— The words printed in italics are in the Passive voice.
By changing the verb forms, the sentence can also be written in the following way:
(a) A mad wolf from the mountain has bitten someone.
This sentence is in the A__________ voice.
Answer— This sentence is in the Active voice.
Now, read the lesson and find out other sentences in Active voice. Reframe these sentences if necessary. Then convert them into their Passive forms.
Q. 6. Let’s learn some tense forms:
We use the Simple Present tense
(i) to express universal truths:
Animals with rabies grow mad.
(ii) to express habitual or repeated action:
Louis Pasteur plays with his friends.
(iii) to indicate situations that are permanent:
He works in the institute.
(b) We use the Present Continuous tense to express an action that is presently going on:
He is working on his experiment.
(c) Now complete these sentences using the Simple Present or the Present Continuous forms of the verbs in brackets:
(i) We _____ football in the afternoon. (play)
Answer— We play football in the afternoon.
(ii) The sun _____ in the east. (rise)
Answer— The sun rises in the east.
(iii) Don’t make a noise; the baby _____ . (sleep)
Answer— Don’t make a noise; the baby is sleeping.
(iv) Someone _____ at the door; can you hear it? (knock)
Answer— Someone is knocking at the door; can you hear it?
(v) The man _____ towards the bus. (run)
Answer— The man is running towards the bus.
(vi) The bus usually _____ at 8 O’clock. (come)
Answer— The bus usually comes at 8 O’clock.
(vii) He _____ for an engineering entrance examination. (prepare)
Answer— He is preparing for an engineering entrance examination.
(viii) He _____ German. (learn)
Answer— He is learning German.
Q. 7. We use the Simple Past tense:
(i) to talk about an action that has already taken place, e.g.
This method of treatment of rabies made Pasteur famous all over the world.
(ii) to show a series of completed actions, e.g.
He injected the boy with the virus and kept him under watch.
(b) We use the Past Continuous tense:
(i) to refer to an action that was going on for a certain period of time in the past.e.g.
One day, a boy called Louis Pasteur was playing with his friends.
(ii) to show that something happened while another action was going on e.g.
Many years later, when he was experimenting on rabbits, he found the deadly virus that causes rabies.
(c) Let’s see how much you have understood. Complete these sentences using the Simple Past or the Past Continuous forms of the verbs in brackets.
(i) Louis Pasteur _____ in 1895. (die)
Answer— Louis Pasteur died in 1895.
(ii) Pasteur knew that the mad wolf _____ from rabies. (suffer)
Answer— Pasteur knew that the mad wolf was suffering from rabies.
(iii) When I reached his house, he _____ lunch. (have)
Answer— When I reached his house, he was having lunch.
(iv) I _____ last evening. (arrive)
Answer— I arrived last evening.
(v) The boys _____ football when it suddently began to rain. (play)
Answer— The boys were playing football when it suddently began to rain.
Q. 8. Imagine you are the young boy who was bitten by the mad dog. You are telling your friends what happened when you were coming home from school. Fill in the gaps in the passage below with correct forms of the verbs to complete your story.
Yesterday I _____ (return) from school alone. On the way I _____ (see) a group of boys around a dog. The dog _____ (seem) to be mad, and the boys _____ (throw) stones at it. This _____ (make) the dog angry and frightened. The dog _____ (begin) to bark angrily. The boys _____(find) this very funny and they _____ (hit) the dog with a stick. I _____ (stand) nearby quietly. Suddently the dog (rush) at me and _____ (bite) me. I _____ (shout) to the boys to help me. But they _____ (run) away. The dog _____(is) so angry that it _____(will) not let go of my leg. Finally, three men from a nearby shop _____(come) out and _____(chase) the dog away.
Answer— Yesterday I was returning from school alone. On the way I saw a group of boys around a dog. The dog seemed to be mad, and the boys were throwing stones at it. This made the dog angry and frightened. The dog began to bark angrily. The boys found this very funny and they hit the dog with a stick. I was standing nearby quietly. Suddenly the dog rushed at me and bite me. I shouted to the boys to help me. But they ran away. The dog was so angry that it would not let go of my leg. Finally, three men from a nearby shop came out and chased the dog away.
Q. 9. Here are a few words from the lesson. See if you can match the words to their meanings:
| Words | Meaning |
| scared |
|
| scratched |
|
| ailing |
|
| virus |
|
| micro-organism |
|
Answer—
| Words | Meaning |
| scared |
|
| scratched |
|
| ailing |
|
| virus |
|
| micro-organism |
|
Q. 10. Look at the pictures given below. Write sentences in the boxes using words from the lesson to describe the pictures.
Answer— (i) The dog is trying to byte the boy.
(ii) The dog has bitten the boy.
(iii) A doctor has examined the boy.
(iv) The boy feels well now.
Q. 11. Look at the following sentences. They are Direct Speech. Imagine you are reporting the coversation to someone. Rewrite the sentences in Indirect/Reported Speech.
(a) “What is the matter?” Louis asked him.
Answer— Louis asked him what the matter was.
(b) “Can you save my son?” the woman asked Louis.
Answer— The woman asked Louis if he could save her son.
(c) “I’ll do whatever I can,” said Louis to the boy.
Answer— Louis told the boy that he would do whatever he could.
Q. 12. Work in groups. Make a poster (using pictures and captions) to create public awareness of what happens when mosquitoes and animals bite. Remember to mention the (i) diseases, (ii) their prevention and (iii) their cure.
Answer— Do it with the help of your teacher.
| S. L. No | Contents (Class 8 English) |
| Lesson 1 | The Prince of Panidihing |
| Lesson 2 | My Native Land |
| Lesson 3 | Explore India: Quiz Time |
| Lesson 4 | Dokchory learns about the Panchayat |
| Lesson 5 | Louis Pasteur |
| Lesson 6 | A New Day A New Way |
| Lesson 7 | Sympathy |
| Lesson 8 | Chandraprabha Saikiani |
Q. 13. Mamu was trying to write about Florence Nightingale for her school magazine on the occasion of World Health Day. Let’s see how she prepared to write it :
- First she made a mind map for her passage. She wrote down important words and phrases related to Florence Nightingale so that she could include them in her passage.
- Then she organised the points and wrote her first draft.
- After that, she revised her draft and wrote the final copy.
Read her final copy and do the task that follows.
Florence Nightingale was the second daughter of William Edward Nightingale and Frances (Fanny) Smith. From her childhood Florence Nightingale wanted to serve people. So she completed a course in nursing to serve sick and old people. When the Crimean War broke out in 1854, she volunteered at once to go to Constantinople to serve the sick and wounded soldiers. She took three nurses with her but Sydney Herbert, the then Secretary of State at War, wanted her to take out a much larger party of nurses. She was officially asked to take charge of the nursing in the military hospital at Scutari in Turkey. The party left England in October 1854. They reached the barrack hospital at Scutari on November 5. On arrival she found that the hospital was overcrowded. Everything was filthy and unhygienic. Patients had to lie even in the corridors. She had a tough fight with the administration to set everything in order. She spent many hours a day in the wards. She attended to every patient and comforted them with love and sympathy. She used to move in the wards each night comforting wounded soldiers with a lamp in her hand. The wounded soldiers began to call her The Lady with the Lamp. Soon, she became the symbol of love and hope for all. Her lamp lit up their lives with a healing touch. Florence Nightingale realised that human love was as important as medicine for healing. To her, the best way to serve God was to serve the suffering people.
Now think of a few words to describe Florence Nightingale.
Working with a partner, draw/ paste a picture of Florence Nightingale in a piece of chart paper, and paste around the picture all the words that you have written to describe her.
Answer— (1) Compassionate – She showed deep empathy and care for the soldiers.
(2) Dedicated – She committed herself tirelessly to improving patient care.
(3) Inspirational – Her actions and values inspired future generations of nurses and caregivers.
(4) Selfless – She prioritized the well-being of others above her own comfort.
(5) Humanitarian – She dedicated her life to alleviating the suffering of others.
Q. 14. Read the definition given below:
A proverb is a well–known phrase or sentence that gives advice or says something that is generally true.
Some examples of proverbs are-
Absence makes the heart grow fonder.
An apple a day keeps the doctor away.
The most important function of proverbs is to teach people good morals. They often contain advice, with the purpose of teaching wisdom to common people. Since proverbs are usually metaphorical and indirect, they allow writers to express their advice in a less harsh way.
Pick out the proverbs from the list given below:
(a) A while elephant
(b) Crocodile tears
(c) All that glitters is not gold
(d) Every cloud has a silver lining
(e) Early to bed and early to rise makes a man healthy, wealthy and wise
(f) A black sheep
Answer— Here are the proverbs from the list:
(c) All that glitters is not gold.
(d) Every cloud has a silver lining.
(e) Early to bed and early to rise makes a man healthy, wealthy, and wise.
Now, read the lesson carefully. Then, using the text as the basis, in groups discuss and prepare a speech on the following proverb :
Prevention Is Better Than Cure.
Remember to prepare the speech from the perspective of maintaining good health. The group leader or any other member chosen by the group will then present the speech before the class. The class will vote for the best speech among the groups. The teacher will suggest necessary improvement to the groups.
The speech voted to be the best by the class will then be made before the morning assembly of the school.
Answer— Friends, rabies and malaria are two diseases where it’s always true that preventing them is better and easier than treating them. They are caused by mosquito bites and animal bites.
To stop these dangerous diseases, we don’t need to spend a lot. We just need to be careful around mosquitoes and animals. Use nets and repellents. Pet animals should be given medicine to prevent rabies. Always stay at a safe distance from wild animals.
Life is short, and we should enjoy it fully. But we can only do this if we live without stress, stay healthy, and are disciplined. Our efforts to stay healthy should help us avoid problems and difficulties.
Q. 15. Prepare a quiz on the lesson Louis Pasteur.
Each group will select a quizmaster and a scorer to conduct the quiz and keep the scores. The quiz will be held among the groups other than the group conducting the quiz. Each group will take turns to conduct the quiz in the class.
The groups will make a note of the questions of each group. Then all the questions will be compiled by the class and the answers will be written down in their notebooks. (You may refer to Lesson 3 for ideas.)
Answer— Do it with the help of your class teacher.
Two is done for you-
1. In what year was the Pasteur Institute founded?
2. Where is the Pasteur Institute located?
Q. 16. Fun with sounds: Practise saying this tongue twister as fast as you can.
Four Frenchmen from France fried forty–five flying fish that fly faster than flat flying fleas.
Now, in pairs, make a tongue twister using information from the lesson, and make your friends say it for fun.
Answer— Do it yourself.
Q. 17. Refer to a dictionary or your text and give two examples of adjectives with the following prefixes or suffixes. (One is done for you.)
Now, use some of these adjectives in your own sentences.
Answer—
Q. 18. (a) Recite:
The mosquito named Little
Has venom in her spittle.
Net, repellent and spray
Always frighten her away.
Answer— Do it with the help of your class teacher.
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