Look at the sentences given below

1. I write a letter to my granny every week .

2. I wrote this letter in his presence .

3.I shall write another letter tomorrow .

In sentence 1,the verb write refers to PRESENT TENSE .

In sentence 2, the verb wrote refers to PAST TENSE.

In sentence 3, shall write refers to FUTURE TENSE .

Thus a verb may refer to present time ,past

The word ‘TENSE’comes

Thus the tense of a verb shows the time of an action or event

not only shows the time of an action or event but also state of an

action referred to .

1.I love.

2. I am loving .

3. I have loved .

4. I have been loving

Thus the Present Tense has four forms :

1.SIMPLE PRESENT

2.PRESENT CONTINUOUS

3. PRESENT PERFECT

4. PRESENT PERFECT CONTINUOUS

Similarly ,THE PAST AND FUTURE TENSE al

SIMPLE PRESENT TENSE

DELHI PUBLIC SCHOOL

SECTOR

E-CONTENT FOR THE WEEK: 25Jan

EN

GLIS

H

TENSES

Look at the sentences given below

a letter to my granny every week .

this letter in his presence .

another letter tomorrow .

In sentence 1,the verb write refers to PRESENT TENSE .

In sentence 2, the verb wrote refers to PAST TENSE.

In sentence 3, shall write refers to FUTURE TENSE .

hus a verb may refer to present time ,past time or future time .

’comes from the Latin word TEMPUS means time .

Thus the tense of a verb shows the time of an action or event

not only shows the time of an action or event but also state of an

4. I have been loving .

Thus the Present Tense has four forms :

CONTINUOUS

PERFECT

PERFECT CONTINUOUS

Similarly ,THE PAST AND FUTURE TENSE also have the four form

SIMPLE PRESENT TENSE

DELHI PUBLIC SCHOOL

SECTOR-5, B.S. CITY

CONTENT FOR THE WEEK: 25Jan- 29Jan’21

TENSES

time or future time .

from the Latin word TEMPUS means time .

Thus the tense of a verb shows the time of an action or event . It

not only shows the time of an action or event but also state of an

so have the four forms.

Simple Present Tense is used to express a habitual action like

She drinks tea in the morning .

To express general truths like

The sun rises in the morning .

In exclamatory sentences like

Here comes the bus !

PRESENT CONTINUOUS TENSE

This is used for an action going on at the time of speaking .

She is singing.

The boys are playing hockey .

PRESENT PERFECT TENSE

To indicate completed activities in the immediate past ,as

1.He has just gone out .

2.It has struck ten .

PRESENT PERFECT CONTINUOUS TENSE

This is used for an action which began at some time in the past and

is still continuing ,as

He has been sleeping for five hours .

They have been building the bridge .

LET US TAKE UP THE ABOVE TENSE IN ITS POSITIVE

,NEGATIVE,INTERROGATIVE AND NEGATIVE-INTERROGATIVE

FORMS AS GIVEN IN YOUR BOOKS .

Here we shall specify on the given things :

Sub +has/have +been+ verb + ing + object + since/for

Ruby has been studying for three hours .

The children have been watching the game for two hours .

Both the sentences signify positive meanings .

NEGATIVE

Sub+has /have+not + been+v+ing+object+since/for

Let us take up the same examples

Ruby has not been studying for three hours .

The children have not been watching the game for two hours .

INTERROGATIVE

Has/have + sub+ been + v+ ing + object + since /for +?

Has she been singing for two hours ?

Have the children been watching the game for two hours ?

NEGATIVE INTERROGATIVE

Has/have + subject + not+ been +v +ing + object + since /for +?

Has Ruby not been studying for three hours ?

Have the children not been watching the game for two hours ?

PAST PERFECT CONTINUOUS TENSE

In the same way, we shall study now about the above tense in its

Positive, Negative ,Interrogative and Negative-Interrogative form.

POSITIVE

Sub +had +been +v+ ing +object +since/for

Suraj had been going to school for three days .

They had been speaking about it for many days .

NEGATIVE

Sub +had +not +been +v+ ing +object +since/for

Suraj had not been going to school for three days

They had not been speaking about it for many days .

INTERROGATIVE

HAD +SUB +BEEN +V +ING +OBJECT +SINCE/FOR

Had Suraj been going to school for three days ?

Had they been speaking about it for many days ?

NEGATIVE-INTERROGATIVE

Had+ sub +not + been +v+ing +object +since/for

Had Suraj not been going to school for three days ?

Have they not been speaking about it for many days ?

FUTURE PERFECT CONTINUOUS TENSE

This tense as already told before , conveys the duration of a

particular action in the future .

POSITIVE

Sub +shall/will +have +been +v+ing +object +since/for

Sheela will have been teaching a new topic since last year .

NEGATIVE

sub +shall/will +not +have +been +v +ing +object +since/for

James will not have been going shopping since 2o’clock .

INTERROGATIVE

shall/will+sub +have+ been +v+ ing +object+ since /for

Will she have been watering the plants since tomorrow ?

NEGATIVE –INTERROGATIVE

Shall/will +sub +not +have +been +v +ing +object +since/for

Will Mohan not have been watering the plants for a week ?

READ THE RULES THOROUGHLY FROM THE BOOK FOR

A BETTER UNDERSTANDING .

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DELHI PUBLIC SCHOOL Class -5

B.S.CITY SESSION 2020-2021 Sub - Maths

ECONTENT FOR THE WEEK 24.01.2021 TO 30.01.2021

( The following explanations are given for your

understanding.)

Speed: The distance travelled by a body or vehicle in a unit time is known

as its speed.

Units of speed are km/hr , m/s , m/min etc.

Speed = 𝑑𝑖𝑠𝑡𝑎𝑛𝑐𝑒

𝑡𝑖𝑚𝑒

Distance may be defined as the length of the actual path covered by a body in a time interval.

Distance = speed x time

Time - when speed and distance are given then time is

Time = 𝑑𝑖𝑠𝑡𝑎𝑛𝑐𝑒

𝑠𝑝𝑒𝑒𝑑

(To be done in C.W. COPY

1. Express each of the following speeds in metre per second:

(i) 36 km per hour

(ii) 72 km per hour

2. Express each of the following speeds in km per hour:

(i) 900 m per minute

(ii) 45 m per second

3. A man can cover 17 ½ km in 5 hours. Find his speed in

(i) m/min

(ii) m/sec

3. Find the time of the following.

1. Speed = 20 cm/s Distance = 20 m

2. Speed = 10km/hr , Distance = 750m

4. Find the distance of the following.

1. Time = 5 hrs , speed = 55 km/hr

2. Time = 36 mins , speed = 45 km/hr

5. Find the speed of the following. ( In km/hr)

1. Distance = 950 m , Time = 5 mins

2. Distance = 500 m , Time = 100 Sec

6. Sam and Tony went to Derek’s house in their cars. Sam covered a distance of 11 km

in 10 minutes. Tony covered a distance of 24 km in 20 minutes. Who drove faster?

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