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ST. XAVIER’S SCHOOLS-CHANDIGARH, PANCHKULA, MOHALI, ZIRAKPUR
CLASS -7 ENGLISH WORKSHEET 5
TOPIC-TENSES (.......continuation of present tense)
2.
Present continuous tense:-
-expresses actions going on at the time of speaking.
Ex. I am taking my breakfast.
-express an action that is expected to take place in the near future.
Ex. We are going to buy a car tomorrow.
There are some verbs which we generally do not use in the present continuous tense
Verbs expressing feelings and emotions like respect ,love
Verbs of certain activities and mental state like think,suppose,know
Verbs of senses like hear,see
Verbs showing possession like own, belong
Other verbs like seem,appear,measure
These verbs do not describe actions but mostly states.So, they are also called non-action
verbs.But if any of these verbs is used to indicate an action which we can begin or stop at
will,we can use it in the present continuous tense.Ex. I am measuring the length of this rope.
(a controlled action)
TABLE OF PRESENT CONTINUOUS TENSE/PRESENT PROGRESSIVE TENSE
KINDS OF
SENTENCES
FORMULAS EXAMPLES
Simple S+is/am/are+V1+ing+O. Ram is going to the market.
Negative S+is/am/are+not+V1+ing+O. Ram is not going to the market.
Interrogative Is/am/are+S+V1+ing+O? Is Ram going to the market?
Negative
interrogative
Is/am/are+S+not+V1+ing+O? Is Ram not going to the market?
S+is/am/are+V1 +ing+O
PRESENT PROGRESSIVE TENSE/PRESENT CONTINUOUS TENSE
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The form of the verb in the present continuous tense are:-
Am/is/are+present participle
The negative is formed by putting not after the auxillary
The interrogative is formed by inverting the subject and the auxillary
SECTIONAL RECAPITULATION
Exercise 1.Fill in the blanks with Present Progressive Tense:-
1. The school peon_______ the bell. (ring)
2. The naughty boys ______ the monkey. (tease)
3. The passengers _______off the bus. (get)
4. My uncle ________tomorrow. (arrive)
5. He ________me luck for my new assignments. (wish)
6. They _______ me for lunch today. (join)
3.
Present perfect tense:-
-expresses past events whose time is not given
Ex. I have passed many examinations.
-express an action that has just been completed
Ex. He has just gone out.
-express an action which began in the past and is still continuing, or has only just finished
Ex. 1. I lived here for five years.
2. He has helped me since my childhood.
Ex. For two days, for five weeks, for many years
Ex. Since morning, since Friday, since 2004
PRESENT PERFECT TENSE
S+has/have+V3+O.
USE OF “FOR”& “SINCE”
FOR
SINCE
PERIOD
OF TIME
Ex. Since
morning,
since
Friday,
since 2004
POINT OF
TIME
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TABLE OF PRESENT PERFECT TENSE
The form of Present tense is:
Has/have+past participle form of the verb
The negative form is:
Has/have+not+past participle of the verb
The interrogative form is:
Has/have+subject+past participle form of the verb+....?
SECTIONAL RECAPITULATION
Exercise 2 A) Fill in the blanks with “for” or “since”:-
1. You have lived here____ four years.
2. It hasn’t rained ______July.
3. They have waited _____ morning.
4. I have not visited her ______her last birthday.
5. He has not written to me ______we met last.
Exercise 2 B) Fill in the blanks with Present perfect tense of the verbs given in brackets:-
1. She _____ in this office since October. (work)
2. He ______50 runs so far. (score)
3. Our teacher____us for half an hour. (teach)
4. “Do you know about Sudha?” “She ______to Mumbai”. (go)
5. I _____this game. (play) (negative)
6. ____ he _____ in the examination? (fail) (interrogative)
KINDS OF
SENTENCES
FORMULAS EXAMPLES
Simple S+has/have+V3+O. Ram has gone to the market.
Negative S+has/have+not+V3+O. Ram has not gone to the market.
Interrogative Has/have+S+V3+O? Has Ram gone to the market?
Negative
interrogative
Has/have+S+not+V3+O? Has Ram not gone to the market?
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Present perfect progressive tense:-
-expresses an action which began in the past and is still continuing
Ex. I have been working since Monday.
-it is also used with time phrases like “all day”, “all week”, “all the time”, “since”,
“for”
Ex. The girl has been waiting for her parents since morning.
TABLE OF PRESENT PERFECT CONTINUOUS TENSE
KINDS OF SENTENCES
FORMULAS EXAMPLES
Simple S+has/have+been+V1+ing+O.
Ram has been going to the market.
Negative S+has/have+not+been+V1+ing+O.
Ram has not been going to the
market.
Interrogative Has/have+S+been+V1+ing+O?
Has Ram been going to the market?
Negative interrogative Has/have+S+not+been+V1+ing+O?
Has Ram not been going to the
market?
The form of Present perfect continuous tense is
Has been/have been +present participle
For negative sentence ,we write:-
Haven’t/hasn’t+present participle
In interrogative sentences,the first part of the verb is put before the subject
Has/have+S+been+present participle
SECTIONAL RECAPITULATION
Exercise 3 Fill in the blanks with Present perfect progressive tense:-
1. Tina _____ to learn French since she opted for it as the third language. (try)
2. She _____ her teacher after class everyday. (help)
3. The priest _____ in the temple since morning. (pray)
PRESENT PERFECT PROGRESSIVE TENSE/PRESENT PERFECT CONTINUOUS TENSE
S+ has/have+been+V1+ing+O
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4. The lady _____ coconuts for three years. (sell)
5. He ______football for five years. (play) (negative)
6. The dog ______ for half an hour. (bark)
FINAL RECAPITULATION
TABLE OF FORMS OF PRESENT TENSE
Exercise 4 Fill in the blanks with Present indefinite tense,Present progressive
tense,Present perfect tense, Present perfect progressive tense:-
1. The birds ______ for sometime. (chirp) (present perfect continuous tense)
2. She _______ to swim at the club these days. (learn) (present continuous tense)
3.The sun _____us light and energy. (give) (simple present tense)
4. Sheena ______ the engineering course. (complete) (present perfect tense)
5. A doctor_____ patients. (treat) (present indefinite tense)
6. The boy _____novels. (read) (present indefinite tense)(negative)
7. The cake______ delicious. (taste) (simple present tense)
8.Mother ______ delicious food for lunch. (cook) (present perfect tense)
9. Mina _______ to be friendly with naughty children. (like) (present indefinite
tense)(negative)
10. We _______ our responsibility. (fulfill) (present perfect tense)
Answer key of English Worksheet-4
Ex.1A. 1.am 2. is 3. has 4. have 5. do 6. does 7. do 8. does 9. has 10.has
Ex2. 1.The boy does not ride a bicycle to school.
2.They do not waste food at every buffet dinner.
3.The girl does not clean her room in the morning.
Ex.3 1.like 2. remember 3. sells 4. helps 5. allow 6. has 7. boils 8. does not 9. dislikes 10. do not
FORMS
FORMULAS
Simple
S+V1(s/es)+O
Continuous
S+is/am/are+V1+ing+O
Perfect
S+has/have+V3+O
Perfect Continuous
S+has/have+been+V1+ing+O
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Class 7 Hindi Worksheet-5
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Answer key of Hindi worksheet-4
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Class 7 Punjabi Worksheet-5 (For Chandigarh and Panchkula Branches Only)
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Answer key of Punjabi Worksheet-4(Chandigarh & Panchkula Branches)
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Class 7 Punjabi Worksheet-3 (for Mohali & Zirakpur branches only)
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Answer key of Punjabi worksheet-2 (Mohali & Zirakpur branches)
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Class 7 Sanskrit Worksheet-3 (For Panchkula Branch Only)
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Class 7 S.St. Worksheet-5 (History-Civics)
CHAPTER - 2
TOPIC- RISE AND SPREAD OF ISLAM
(PART- I)
Islam arose in the Arabian Peninsula, which is a large desert lying between the Red Sea
and the Persian Gulf. Arabia was inhabited by warring tribes of nomadic people who
were superstitious and believed in many gods and goddesses. They also worshipped the
black stone kept at the shrine called the Kaaba in the town of Mecca. In the seventh
century AD, the Arab tribes were united under a new religion called Islam.
ADVENT OF ISLAM
Early life of the prophet: The founder of Islam, Prophet Muhammad was born in Mecca
around AD 570. On his journeys to distant places, Muhammad came to know about the
Christian and Jewish religions and was impressed by their belief in one god.
Divine revelations: At the age of about 40, Muhammad is said to have started receiving
divine messages through the angel Gabriel, which were believed to be God’s words, and
were later compiled in the Koran (the holy book of Islam). Soon after receiving the first
messages, Muhammad began to preach monotheism (the belief in one god) and opposed
polytheism (the belief in many gods). But, he accepted the Kaaba as a holy shrine.
Hijrah: Muhammad was forced to leave Mecca as some of his teachings went against the
established faith of the Arabs. So, in AD 622, he took refuge in a town called Medina (the
city of prophet). This escape of Muhammad is called Hijrah, which marks as the
beginning of the Islamic era and the birth of Muslim community, or ummah
Muhammad’s teachings became popular and were welcomed back to Mecca and hailed as
the prophet, or the one chosen by God to spread His message
MUHAMMAD’S TEACHINGS
Muhammad called upon his followers (known as Muslims) toaccept Islam, which means
to surrender to the will of Allah, the one and only God. Islam considers Muhammad,
Abraham and
Moses as his last prophet.Muslims, like Christians and Jews, believe that everyone
willhave to face the Day of Judgment and will go to hell or heavenafter being judged. It is
therefore, necessary for everyone to surrender to God and receive His guidance. Islam
stresses on the equality, brotherhood and the responsibility of every manto live a life of
faith without the help of priests. Hence, there is no clergy.
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FIVE DUTIES OF A MUSLIM
Every Muslim must correctly recite aloud the Shahdah, or the basic statement of the
faith. At least once in a lifetime.
While praying, a Muslim must face the direction of the Kaaba and pray five times a
day- before sunrise, at noon in the late afternoon, at sunset and after sunset.
Every Muslim must give alms to the poor and pay tax on his income to contribute to
the well being of the entire community.
A Muslim should fast from dawn to dusk in the month of Ramzaan (the ninth month
of the Islamic calendar).
Every Muslim who can afford to undertake the annual pilgrimage (Haj) to Mecca
DEVELOPMENTS AFTER MUHAMMAD’S DEATH
After Muhammad’s death in AD 632, a caliph, or khalifa as successor of the Prophet,
became the religious and political head of the Muslim community.
The first four caliphs- Abu Bakr, Umar, Uthman and Ali – had been the companions of
the prophet himself.
Abu Bakr and Umar spread Islam beyond Arabia- to Syria, Persia (Iran), Iraq, Jordan,
Lebanon, Palestine, Turkey, Spain and northern Africa.
During the tenures of Uthman and Ali, there were succession disputes. Ali was murdered,
and later his own son Husain, too was murdered at Karbala in Iraq. Therefore, the
community split into two sects-Shia and Sunni.
Shias -regard Ali as the Prophet’s true successor. They believe that a caliph is appointed
by divine will. Sunnis-they believe that a caliph should be chosen by the whole
community.
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Apart from the Koran, they follow the Sunnah (Customs and laws based on the deeds and
words of Muhammad)
The areas governed by the caliphs were known as caliphates.
Most powerful caliphates- Umayyids of Damascus and later, the Abbasids of
Baghdad.
Arab influence extended from Spain in Europe to Sind in India.
In AD 712, the Arabs invaded Sind and annexed it to their empire. Many trade
settlements sprang up in Sind, increasing India’s trade contacts with West Asia. Arab
expansion beyond Sind was checked by the Rajput rulers of North India
Answer the following questions in one or two sentences:
1. What do you understand by Hijrah? What is its significance?
2. Name the two sects into which Islam split? Mention one important difference
between them.
3. Why is there no clergy in the Islamic religion?
4. Name the two most powerful caliphates.
Fill in the blanks:
1. There were succession disputes during the tenures of the caliphs _____ and ____.
2. Prophet Muhammad continued to worship the black stone at the ______
3. ______ is the month in which Muslims fast from dawn to dusk.
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Answer key of S.St. Worksheet-4 (Geography) THE ATMOSPHERE
Q1 Fill in the blanks:
a. The most abundant gas in the atmosphere is nitrogen.
b. Plants require carbon dioxide for the process of production of food.
c. Oxygen is the life breath gas.
d. A mixture of gases is called air.
e. Troposphere is the lowest layer of the atmosphere in which all weather changes take
place.
Q2. Answer the following:
a. Define Atmosphere.
Ans. The earth is surrounded by an envelope of air which is called the atmosphere.
b. Name the two most important gases in the atmosphere.
Ans. The two most important gases in the atmosphere are nitrogen and oxygen.
c. Name the four layers of the atmosphere.
Ans. The four layers of the atmosphere are:
1. Troposphere
2. Stratosphere
3. Mesosphere
4. Thermosphere
d. Name the lowest and densest layer of the atmosphere.
Ans. Troposphere is the lowest and densest layer of the atmosphere.
e. Name any two greenhouse gases.
Ans. The two greenhouse gases are carbon dioxide and methane.
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Class 7 Science Worksheet-5 (Chemistry)
ATOM: An atom is the smallest part of an element that takes p
art in chemical reaction.
MOLECULE : It is the smallest part of element or compound that can exist
independently.
Atomicity: the no of atoms contained in a molecule of an element or compound is called
atomicity.
VALENCY: The combining capacity of an element with other element is called
valency.
The elements with valencies 1,2,3,4 are said to be monovalent,divalent, trivalent and
tetravalent.
Monovalent Divalent Trivalent Tetravalent
Hydrogen Oxygen Nitrogen Carbon
Fluorine,
chlorine
Bromine
Iodine
Sodium
Potassium
Sulphur
Magnesium
Calcium
Zinc
Aluminium Silicon
ATOMICITY:
1)MONOATOMIC:All noble gases are mono atomic. E.g.:helium,neon,argon.
Diatomic:they contain two atoms in a molecule.e.g. hydrogen,nitrogen,oxygen,chlorine
etc.
Triatomic:it contains three atoms jn a molecule.Eg. ozone
Polyatomic:A molecule having atomicity more than two.Eg.
Phosphorus : atomicity 4
Sulphur : atomicity 8
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DIFfERENCE between atoms,molecules and radicals
Property Atom Molecule Radical
Independent
Existence m
Not
capable
Capable Capable
Charge Not
charged
Not
charged
Charged
Valency Has a
valency
Has no
valency
Has a
valency
No.of
constituent
elements
Only
one
One or
more
than one
One or
more
than
one
How it
takes part in
chemical
reaction
Directly Breaks
into
atoms
which
takes part
Takes
part in a
reaction
as a
unit.
Q1. Answer the following questions
Q1. Define atom and molecule?
Q2. What do you mean by the atomicity of an element?
Q3. what do you mean by valency of an element?
Q4. What are the atomicities of the following.
a) Neon
b) Oxygen
c) Ozone
d) Phosphorus
e) Sulphur
Q5. Discuss how atoms molecules and radicals differ from each other?
Q2. Write true or false:
1. HCl is a diatomic molecule.
2. The valency of the radical is the same as the charge over it.
3. The valency of group 14 element is 4.
4. Calcium, an element of group 2 of the periodic table forms ca2H.
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Q3. Fill in the blanks:
1. An atom is the smallest part of ________ that takes part in a chemical reaction.
2. A molecule is the smallest part of an element or a _________. That can exist
independently.
3. A molecule of a noble gas element contains_______ atoms.
Q4 state the valency of the following
a) Calcium
b) Hydrogen
c) Aluminium
d) Iodine
e) Magnesium
f) Carbon.
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Answer key of Science Worksheet-4 (Physics)
1. a) False b) True c) True
2. a) 106
b) Displacement of a liquid c) (Side)3
3. S.I. unit of volume is cubic metre(m3). It is defined as the volume of a cube with
each side 1 metre long.
4. Volume of a cuboid = length × breadth × height
5.Volume of stone = Volume of the liquid displaced
= Final volume – initial volume
= 80mL – 60mL
= 20 mL or 20 cm3
[as 1mL = 1cm3]
6.Volume = length× breadth ×height
=1250 cm3 or 1250 mL [ 1mL = 1cm
3]
7. Volume = 23mL or 23cm3 [1mL= 1cm
3] [ Refer Question No. 5 ]
8. Mass (Kilogram) , length ( metre) , Time (second)
9. Measurement is a process of comparison of the given unknown quantity with a
fixed known quantity of the same kind called the unit.
10. As we know, 1m = 100 cm
Cubing both sides, we get
1m × 1m ×1m = 100cm ×100 cm ×100 cm
Hence , 1m3 = 10
6 cm
3
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Class 7 Maths Worksheet-5
CHAPTER-2: FRACTIONS AND DECIMALS
NOTES ON FRACTIONS
A fraction is a number which represents a part of whole.
General method of comparing fractions:-
(i) Convert all the fractions into equivalent like fractions.
(ii) Then the fraction having the greater numerator is greater.
To add or subtract two (or more) fractions, proceed as under:-
(i) Convert all the fractions into equivalent like fractions.
(ii) Combine the numerators of all these like fractions with their signs + or – and
place it over the common denominator to obtain single like fraction.
(iii) Reduce the fraction obtained in step (ii) to lowest form and then convert it
into mixed fraction (if need be).
(iv) Examples: 3
11 +
5
11 +
9
11 =
3 + 5 + 9
11 =
17
11 = 1
6
11
9
14 +
3
14 −
5
14 =
9 + 3− 5
14=
7
14 =
1
2
To multiply two (or more) fractions, proceed as under:-
(i) Multiply the numerators together and the denominators together. Place the
product of the numerators over the product of the denominators.
(i) Reduce the fraction obtained in the step (i) to lowest terms. Still better is to
cancel to common factors (if any) from the numerators and denominators of
the given fractions before multiplying numerators together and denominators
together.
(ii) Examples: 3
8 4 ×
6 3
4=
9
16
To divide one fraction by another fraction, proceed as under:-
(i) Convert the division of fraction into multiplication by reciprocating the second
fraction (divisor) and follow the multiplication of fraction steps.
(ii) Examples: 4
9 ÷
2
3=
4
9 ×
3
2=
12 2
18 3=
2
3
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Practice Worksheet
1. Solve:- 7
10 +
2
15 +
3
5
2. Arrange the following in descending order:-
2
9 ,
2
3 ,
8
21
3. Find 1
2 of 4
2
9
4. Find 21
5 ÷ 1
1
5
5. Multiply the following fraction:- 34
7 ×
3
5
6. Which is greater: 2
7 of
3
4 or
3
5 of
5
8
7. A car runs 16 km using 1 litre of petrol. How much distance will it cover using 23
4
litres of petrol?
8. A rectangular sheet of a paper is 121
2 cm long and 10
2
3 cm wide. Find its
perimeter.
9. Sameera purchased 31
2 kg apples and 4
3
4 kg oranges. What is the total weight of
fruits purchased by her?
10. Ramesh solved 2
7 part of an exercise while Seema solved
4
5 of it. Who solved lesser
part?
Answer key of Maths worksheet-4
1. (i) 480
(ii) -53000
(iii) -15000
(iv) -4182
(v) -62500
(vi) 336
(vii) 493
▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪
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Class 7 Computer Applications Worksheet-4
CHAPTER : USING LIST, IMAGES AND LINKS
UNORDERED LIST :-
Used when the items are not to be displayed in any particular order.
Also known as bulleted list.
Written within <UL> </UL> TAGS
<LI> tag used display list items
EXAMPLE CODE OF UNORDERED LIST
DEFINITION OF LIST : - A list is the most efficient way of presenting information in a
precise manner. It helps in making important points stand out more clearly and thus grabs a
visitor’s attention.
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ORDERED LIST :-
Used when the items are to be displayed in a specific order.
Also known as numbered list.
Written within <OL> and </OL> TAGS
<LI> tag used display list items
EXAMPLE CODE OF ORDERED LIST
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NEXT TOPIC : ATTRIBUTES
START, REVERSE ATTRIBUTE ( ORDERED LIST ) and TYPE ATTRIBUTE (
ORDERED AND UNORDERED LISTS )
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HINT BOX :
FILL IN THE BLANKS :
a) ___________ attribute specifies the start value of the first item from which an
ordered list should start.
b) The default value for an ordered list is _____.
c) The default value for Reversed attribute is _________.
d) ___________ attribute allows a list to appear in the reverse order.
e) The default value for an unordered list is _____.
f) The _________ attribute specifies the type of numbering and bullet used to mark
items in an Ordered and Unordered list respectively.
g) START and REVERESED are attributes of ____________ list.
Answer key of Computer Application Worksheet-3
HINT (list, <Li>, <UL> </UL>, bulleted, </HTML>, numbered, <UL>, ordered,
<OL> </OL>, unordered)
1. A list is the most efficient way of presenting information.
2. Items can be displayed in an ordered list and unordered list by using , <Li>, tag.
3. ordered list is used to display the list in specific order.
4. Ordered list begins and ends with <OL> and </OL> tags.
5. <UL> And </UL> tags are used respectively to start and end an unordered list.
6. <UL>tag indents each item in the list and adds a bullet against each item.
7. Ordered list is known as numbered list.
8. The unordered list is used when the items are not to be displayed in any particular
order.
9. To start html page we use <HTML> tag and to end the page we use </HTML>tag.
10. Unordered list is also known as bulleted list.
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REVERSED; TYPE; START; 1; ORDERED; DISC; FALSE
