SEBA Class 8 English Chapter 5 Louis Pasteur

SEBA Class 8 English Chapter 5 Louis Pasteur Solutions As Per New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters SEBA Class 8 English Chapter 5 Louis Pasteur Solutions and select need one. SEBA Class 8 English Chapter 5 Louis Pasteur Question Answer Download PDF. SEBA Class 8 English Textbook Solutions.

SEBA Class 8 English Chapter 5 Louis Pasteur

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. SCERT Class 8 English Notes are part of All Subject Solutions. Here we have given SCERT Class 8 English Question Answer for All Chapters, You can practice these here.

Louis Pasteur

Chapter: 5

ACTIVITIES

1. Answer the following questions:

(a) What happened one day while Louis Pasteur was playing with his friends?

Ans: One day, while Louis Pasteur was playing with his friends, he saw a man running towards him. The man was very frightened and said that someone had been bitten by a mad wolf from the mountain.

(b) What does rabies cause in human beings?

Ans: Rabies is a viral disease that causes inflammation of the brain in human beings.

(c) What experiments did Pasteur conduct on rabbits?

Ans: Pasteur experimented on rabbits and found the deadly virus that causes rabies. He 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?

Ans: Pasteur’s first human patient was a boy who was bitten by a mad dog while returning from school. Yes, his treatment was successful and the boy recovered.

(e) When and where did the French government establish the Pasteur Institute? What is it famous for?

Ans: The French government established the Pasteur Institute in 1888 in Paris. The institute is dedicated to the study of biology, micro-organisms, diseases and vaccines.

2. You must have noticed that the lesson has Read the lesson carefully and note down all these words in the word web below. One has been done for you.

Ans:

3. Here are five friends sharing information about diseases. Complete their dialogues with information from the lesson. 

(a) Puja: Beware of animal bites

Ans: BEWARE OF ANIMAL BITES THEY MAY CAUSE RABIES

(b) Rohan: Measles is a deadly disease. It can lead to

Ans: MEASLES is a deadly disease. It can lead to  Pneumonia  Diarrhoea  Other life threatening complications

(c) Pushpa: Rubella infection can lead to

Ans: RUBELLA infection during pregnancy can lead to children born with congenital birth defects, as Blindness. 

Deafness. 

Mental retardation.

Congenital heart defects.

(d) Jumon:The anopheles mosquito 

Ans: The anopheles mosquito is a carrier of MALARIA

Keep food and water covered!

Use repellent.

Sleep under a mosquito net.

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

Ans: Flowchart – Chain of Events (from the lesson)

5. Here are some sentences from the lesson. 

A man came running towards Louis Pasteur. The man was very frightened. ìWhat is the matter?íí 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 in italics? Fill in the blank spaces provided below to give the answer. 

The words printed in italics are in the P___ ___ ___ ___ ___ ___ voice. 

Ans: 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. 

Ans: 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. 

Other sentences from the lesson in Active Voice and their Passive forms (from PDF):

Active:

Pasteur injected the boy with the virus.

 Passive:

The boy was injected with the virus by Pasteur.

Active:

 The French government founded the Pasteur Institute in Paris.

 Passive:

 The Pasteur Institute was founded in Paris by the French government.

6. (a) 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.

Example: 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:Fill in the blanks

(i) We ______ football in the afternoon. (play)

Ans: We play  football in the afternoon.

(ii) The sun ______ in the east. (rise)

Ans: The sun rises in the east.

(iii) Don’t make a noise; the baby ______. (sleep)

Ans: Don’t make a noise; the baby sleeping.

(iv) Someone ______ at the door; can you hear it? (knock)

Ans: Someone is knocking at the door; can you hear it?

(v) The man ______ towards the bus. (run)

Ans: The man ran towards the bus.

(vi) The bus usually ______ at 8 oíclock. (come) 

Ans: The bus usually comes at 8 oíclock. 

(vii) He _______ for an engineering entrance examination. (prepare) 

Ans: He is preparing for an engineering entrance examination.

(viii) He ________ German. (learn)

Ans: He is learning German.

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