NCERT Solutions For Class 9 Words and Expressions 1

Here are some jackets of books. Discuss with your partner which of these look like jackets of science fiction books. Why do you think so? Give some reasons.

Text I

How will the self-driving cars or driverless cars be safe?
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What do you understand by ‘cars will communicate with each other’?
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What are the advantages of self-driving cars?
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What is the use of GPS?
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What is a drone? What are its advantages?
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Which technology will be used in flying cars?
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How will the flying cars be more convenient than planes
and helicopters?
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Text II

Who is Sophia and who is her creator?
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Why were the audience excited on the second day of the
World Congress on Information Technology–2018?
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The favourite tech person in Sophia’s life is: (Tick the correct answer)
(a) Shah Rukh Khan
(b) David Hanson
(c) Bill Gates
(d) Mark Zuckerberg

What changes does the humanoid robot want to see in the world?
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Which of the following statements regarding Sophia is true?
(a) Sophia plans to kill the human race in near future.
(b) She can express her emotional feelings freely.
(c) Hong Kong is her favourite place.
(d) Sophia has a bank account.

What are David’s assertions as far as robots are concerned?
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Go back to the chapter ‘The Fun They Had’ given in your textbook, Beehive, and identify words that mean the following. The paragraph numbers are given in brackets.
(a) sadly (3)_________________________________________
(b) unfamiliar (7) ____________________________________
(c) quite likely (8) ___________________________________
(d) in a casual, calm and relaxed manner (9)
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(e) something beaming and shining (10)
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Imagine the school in the story ‘The Fun They Had’. Compare it with your own school. Given below are two outlines for mindmaps. Fill these with words that you can think of in the two situations.

Find the odd one out.
(a) pleasure, misery, happiness, delight ______________
(b) note, diary, book, copy ___________________________
(c) TV, computer, mobile, scanner ___________________
(d) display, exhibit, appear, show____________________
(e) scornful, contemptuous, mocking, diversity _________________________________________________
(g) illuminating, gladdening, pleasing, gratifying _________________________________________________

You would have come across the use of prefixes like ‘dis’, ‘un’, ‘mis’, ‘in’, etc., to make opposite words. For example, ‘consolate–disconsolate’. Write the opposites of the following. 

(a) use _______________________
(b) agree _____________________
(c) engage ____________________
(d) understand _______________
(e) fold _______________________
(f) spell _____________________
(g) connect _________________
(h) like _____________________
(i) visible ___________________
(j) predictable ______________

The suffixes are used to get adjective form of the words. (Example: danger –dangerous). Use the correct suffix to the following to make adjectives.

(a) comfort __________________
(b) sun ______________________
(c) read _____________________
(d) beauty ___________________
(e) enjoy _____________________
(f) suit_____________________
(g) help____________________
(h) use_____________________
(i) hazard________________
(j) impress__________________

When we talk about present situations or present time we can use either ‘unless’ or ‘if…not’.
Example: 

You can’t go on a holiday unless you save some money.
If you don’t save some money, you can’t go on a holiday. 

Fill in the blanks with ‘if’ or ‘unless’.
(a) I won’t be able to assist you ___________________ you give me all the details of the report.
(b) I will take this job ___________________________ the working hours suit me. 

(c) ___________________he advertises on TV, he will get a lot of publicity.
(d) ________________________ it is very cold, we will not have any snow.
(e) The thief threatened to kill us _________ we didn’t give him the money.
(f) ________________________ you use high quality material, you cannot build a strong house. 

Join the following sentences using ‘unless’ or ‘if…not’. The sentences may require minor changes. One is done for you.

Example: 

The light had not fused. I would not mind being alone at night.
If the light had not fused, I would not have minded being alone at night.

(a) I would never keep a large dog. I have time to exercise it properly.
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(b) Sita would have come first in class. She had not fallen ill.
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(c) You must not dive. You have been properly trained.
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(d) Medical evidence suggests that people would enjoy better health. They did not consume refined sugar.
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(e) I might have got the job. I hadn’t been late for the interview.
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(f) You do not stop smoking. You will fall seriously ill.
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(g) You do not come now. I am going to leave without you.
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Put the adverbs given at the end of the sentence at the appropriate place within the sentence. One is done for you.

They completed the work. (fast/quickly) They completed the work fast

(a) Mr. Sharma died as the family was getting ready to go for the wedding. (suddenly)
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(b) My grandfather arrived to avoid the traffic rush. (early)
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(c) The man thanked me before he drove off. (profusely)
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(d) The children clapped at the little girl’s extraordinary performance. (admiringly)
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(e) The dog bit me when I was coming home from school. (hard)
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(f) The police had several photographs of the suspect. (fortunately)
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(g) Sunil left the room when he saw the bull coming in. (abruptly)
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Use capital letters, full-stops, commas and inverted commas wherever necessary in the following paragraph. Rewrite the paragraph in the space given below.

The teacher gave an assignment to the students “Go to people you love and tell them i am sorry.” It sounded stupid
to me but after one week i went to my teacher i confided i didn’t have anyone to say those words to but as i began
walking down home my conscience started talking. five months ago my friend and i had a vicious disagreement
we avoided seeing each other we hardly spoke i convinced myself i should tell my friend i am sorry. at 5.30 in the evening I went to him and said i am sorry a transformation came over my friend his face softened, the arrogance seemed to disappear and he began to cry he hugged me and said i am sorry too but i’ve never been able to say it.

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Rearrange each set of words to form meaningful sentences. Use appropriate punctuation marks.

(a) wise, every, a, is, proverb, saying
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(b) see, you, can, from, me, there
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(c) happy, they, to, the, were, meet, visitor
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(d) impatient, do, be, not
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The following two excerpts have been taken from the book, Tuesdays with Morrie, written by Mitch Albom.
The book is about a college Professor, Morrie and one of his students, Mitch Albom, who is also the author of the
book. Mitch sees his professor in a television show and he is reminded of a promise he made sixteen years ago as his
student, to keep in touch with him. He comes to know that the professor is stricken with a rare and incurable disease.
Mitch travels a long distance to meet him and after the first meeting they meet every Tuesday till Morrie passes away.
After reconnecting with his teacher, Mitch finds himself his teacher’s pupil once again.

Listen attentively to the two excerpts from the book, Tuesdays with Morrie and answer the questions that follow. You can listen to the recorded excerpts or you can ask your teacher, friend or sibling to read aloud these excerpts.

1. I remembered what Morrie said during our visit:
“The culture we have does not make people feel good about themselves. And you have to be strong enough to say if the culture doesn’t work, don’t buy it”. Morrie, true to these words, had developed his own culture—long before he got sick. Discussion groups, walks with friends, dancing to his music in the Harvard Square Church. He started a project called Greenhouse, where poor people could receive mental health services. He read books to find new ideas for his classes, visited his colleagues, kept up with old students, wrote letters to distant friends. He took more time eating and looking at nature and 

wasted no time in front of TV sitcoms or “Movies of the Notes Week”. He had created a cocoon of human activities—conversation, interaction, affection—and it filled his life like an overflowing soup bowl. 

2. The last class of my old professor’s life took place once a week in his house, by a window in the study where he
could watch a small hibiscus plant shed its pink leaves. The class met on Tuesdays. It began after breakfast. The
subject was ‘The Meaning of Life’. It was taught from experience.
No grades were given, but there were oral exams each week. You were expected to respond to questions, and
you were expected to pose questions of your own. You were also required to perform physical tasks now and
then, such as lifting the professor’s head to a comfortable spot on the pillow or placing his glasses on the bridge of
his nose. Kissing him goodbye earned you extra credit. No books were required, yet many topics were
covered, including love, work, community, family, ageing, forgiveness and, finally, death.

1.Who is Morrie?
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2.How did Morrie develop his own culture of living?
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3. What was the name of the project Morrie had started?
What was it about?
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4. What did human activities mean to Morrie?
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5. Why was the subject of the class ‘the meaning of life’?
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Prepare a speech for the school assembly based on the thoughts given below.

• Once we have computer outlets in every home, each of them hooked up to enormous libraries, where you can ask any question and be given answers, you can look up something you’re interested in knowing, however silly it might seem to someone else.

• Men are only as good as their technological development allows them to be.

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The chapter ‘The Fun They Had’ presents different perspectives on school and education. Think of the various alternatives. Prepare and give a speech in class presenting your views on how best can students be educated. Discuss why you would prefer to be taught by both human teacher and a robot.

Your views.
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Write a paragraph on each of the following:
• Electronic Waste and Environmental Pollution
• Being Human in the Age of Artificial Intelligence
• After listening to the excerpts (Page No. 14 of this workbook), do you think a robot should replace the human teacher? Give reasons in support of your answer.
Notes:
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There is so much debris in space, which sooner rather than later, is going to cause major damage. As a concerned citizen of Earth, write a letter to NASA Chief outlining your concerns. Your letter should be ‘formal’ in style and structure. 

The points are given below for you to use. You may use  other points as well.

(a) More than 5,00,000 pieces of debris or space ‘junk’ that travel at 17,500mph can damage satellites in the space.
(b) The debris can damage International Space Station and other spacecrafts with humans in it.
(c) Enormous amount of money would be lost if that happens.
(d) Much of the debris is so small that it cannot be tracked—this makes it more dangerous.
(e) Accidents have happened in the past.

From ___________________________
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Date: _________________
To ______________________
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Subject:________________________________________________________________________
Sir/Madam,
Introduction___________________________________________________________________
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Body of the letter
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Conclusion
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Yours sincerely,
Name & Signature
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