NCERT Class 7 English Solutions: a Bicycle in Good Repair Chapter 9– Part 3

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Question 1:

Read the following sentences.

♣ We should go for a long bicycle ride.

♣ I ought to have been firm.

♣ We mustn’t lose any of them.

♣ I suggested that he should hold the fork and that I should handle the wheel.

The words in italics are modal auxiliaries. Modal auxiliaries are used with verbs to express notions such as possibility, permission, willingness, obligation, necessity, etc. ‘Should,’ ‘must’ and ‘ought to’ generally express moral obligation, necessity and desirability.

Look at the following.

♣ We should go on a holiday. (suggestion: It is a good idea for us to go on a holiday.)

♣ He is not too well these days. He must see a doctor before he becomes worse. (compulsion or necessity: It is absolutely essential or necessary for him to see a doctor.)

♣ You ought to listen to me. I am well over a decade older than you. (more emphatic than ‘should’: Since I am older than you, it is advisable that you listen to me.)

Note: ‘Should’ and ‘ought to’ are often used interchangeably.

Rewrite each of the following sentences using should/ought to/must in place of the italicized words. Make other changes wherever necessary.

(i) You are obliged to do your duty irrespective of consequences.

(ii) You will do well to study at least for an hour every day.

(iii) The doctor says it is necessary for her to sleep eight hours every night.

(iv) It is right that you show respect towards elders and affection towards youngsters.

(v) If you want to stay healthy, exercise regularly.

(vi) It is good for you to take a walk every morning.

(vii) It is strongly advised that you don’t stand on your head.

(viii) As he has a cold, it is better for him to go to bed.

Answer:

(i) You are obliged to do your duty irrespective of consequences.

You ought to do your duty irrespective of consequences.

(ii) You will do well to study at least for an hour every day.

You should study at least for an hour every day.

(iii) The doctor says it is necessary for her to sleep eight hours every night.

The doctor says she must sleep eight hours every night.

(iv) It is right that you show respect towards elders and affection towards youngsters.

You should show respect towards elders and affection towards youngsters.

(v) If you want to stay healthy, exercise regularly.

You should exercise regularly to stay fit.

(vi) It is good for you to take a walk every morning.

You should take a walk every morning.

(vii) It is strongly advised that you don’t stand on your head.

You must not stand on your head.

(viii) As he has a cold, it is better for him to go to bed.

As he has a cold, he should go to bed.

Question 2:

Use should/must/ought to appropriately in the following sentences.

(i) People who live in glass houses ……………..not throw stones.

(ii) You ……………… wipe your feet before coming into the house, especially during the rains.

(iii) You ………………… do what the teacher tells you.

(iv) The pupils were told that they ………………. write more neatly.

(v) Sign in front of the park: You ………………. not walk on the grass.

(vi) You ……………………… be ashamed of yourself having made such a remark.

(vii) He ……………………..left home at 9 o’clock. He is here any minute.

(viii) “Whatever happened to the chocolate cake?”

“How ……………………. I know? I have just arrived.”

Answer:

(i)People who live in glass houses should not throw stones.

(ii)You ought to wipe your feet before coming into the house, especially during the rains.

(iii)You should do what the teacher tells you.

(iv)The pupils were told that they should write more neatly.

(v)Sign in front of the park: You must not walk on the grass.

(vi)You should be ashamed of yourself having made such a remark.

(vii)He left home at 9 o’clock. He should be here any minute.

(viii)”Whatever happened to the chocolate cake?” “How should I know? I have just arrived.”

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