NCERT Solutions for Class 7 English Chapter 15 - Fire: Friend and Foe

Question 1:

Early man was frightened of:

1. lightning and volcanoes
2. the damage caused by lightening and volcanoes
3. fire

Question 2:

Fire is:

1. energy
2. heat and light
3. the result of a chemical reaction

Question 3:

From the boxes given below choose the one with the correct order of the following sentences.
(i) That is fire.
(ii) A chemical reaction takes place.
(iii) Energy in the form of heat and light is released.
(iv) Oxygen combines with carbon and hydrogen.

1. (i) (ii) (iii) (iv)
2. (ii) (iii) (i) (iv)
3. (iii) (iii) (ii) (i)
4. (iv) (ii) (iii) (i)

Question 4:

What do you understand by the ‘flash point’ of a fuel?

Question 5:

What are some common uses of fire?

Question 6:

In what sense is it a ‘‘bad master’’?

Question 7:

What are the three main ways in which a fire can be controlled or put out?

Question 8:

Match the items in Box A with those in Box B.

1. To burn paper or a piece of wood,
2. Small fires can be put out
3. When water is spread on fire
4. A carbon dioxide extinguisher is the best thing

Question 9:

Why does a burning candle go out when you blow on it?

Question 10:

Spraying water is not a good way of putting out an oil fire or an electrical fire. Why not?

Question 11:

What are some of the things you should do to prevent a fire at home and in the school?

Question 12:

Read the following sentences.
To burn paper or a piece of wood, we heat it before it catches fire. We generally do it with a lighted match. Every fuel has a particular temperature at which it burns.
The verbs in italics are in the simple present tense. When we use it, we are not thinking only about the present. We use it to say that something happens all the time or repeatedly, or that something is true in general.
Find ten examples of verbs in the simple present tense in the text ‘Fire: Friend and Foe’ and write them down here. Do not include any passive verb.

Question 13:

Fill in the blanks in the sentences below with the words in the box. You may use a word more than once.

Gandhiji’s life was devoted to the ____________ of justice and fair play.

Question 14:

Fill in the blanks in the sentences below with the words in the box. You may use a word more than once.

Have you insured your house against ____________?

Question 15:

Fill in the blanks in the sentences below with the words in the box. You may use a word more than once.

Diamond is nothing but ____________ in its pure form.

Question 16:

Fill in the blanks in the sentences below with the words in the box. You may use a word more than once.

If you put too much coal on the fire at once you will ____________ it.

Question 17:

Fill in the blanks in the sentences below with the words in the box. You may use a word more than once.

Smoking is said to be the main ____________ of heart disease.

Question 18:

Fill in the blanks in the sentences below with the words in the box. You may use a word more than once.

When asked by an ambitious writer whether he should put some ____________ into his stories, Somerset Maugham murmured, ‘‘No, the other way round.’’

Question 19:

Fill in the blanks in the sentences below with the words in the box. You may use a word more than once.

She is a ____________ copy of her mother.

Question 20:

Fill in the blanks in the sentences below with the words in the box. You may use a word more than once.

It is often difficult to __________ a yawn when you listen to a long speech on the value of time.

Question 21:

One word is italicised in each sentence. Find its opposite in the box and fill in the blanks.

Question 22:

One word is italicised in each sentence. Find its opposite in the box and fill in the blanks.

PUPIL : What marks did I get in yesterday’s Maths test?
TEACHER : You got what you get when you add five and five and ______________ ten from the total.

Question 23:

One word is italicised in each sentence. Find its opposite in the box and fill in the blanks.

Run four kilometres a day to preserve your health. Run a lot more to ______________ it.

Question 24:

One word is italicised in each sentence. Find its opposite in the box and fill in the blanks.

If a doctor advises a lean and lanky patient to reduce his weight further, be sure he is doing it to ______________ his income.

Question 25:

One word is italicised in each sentence. Find its opposite in the box and fill in the blanks.

The world is too much with us; late and soon, Getting and ______________ we lay waste our powers.

Question 26:

Use the words given in the box to fill in the blanks in the sentences Use the words given in the box to fill in the blanks in the sentences below.

The cat chased the mouse ..................... the lawn.

Question 27:

Use the words given in the box to fill in the blanks in the sentences below.

We were not allowed to cross the frontier. So we drove ............... it as far as we could and came back happy.

Question 28:

Use the words given in the box to fill in the blanks in the sentences below

The horse went .................. the winning post and had to be stopped with difficulty.

Question 29:

Use the words given in the box to fill in the blanks in the sentences below.

It is not difficult to see ........................ your plan. Anyone can see your motive.

Question 30:

Use the words given in the box to fill in the blanks in the sentences below.

Go .............. the yellow line, then turn left. You will reach the post office in five minutes.

Question 31:

Look at the following three units. First re-order the items in each unit to make a meaningful sentence. Next, re-order the sentences to make a meaningful paragraph. Use correct punctuation marks in the paragraph.
(i) and eighteen fire tenders struggled/the fire began on Monday/to douse the blaze till morning
(ii) in a major fire/over 25 shops/were gutted
(iii) but property/was destroyed/worth several lakhs/no casualties were reported.