It’s a Mammal!
Building Background Mammals
What do you already know about ‘mammals’? What do you want to
know about ‘mammals’? Complete the chart below.
Vocabulary Many Animals & What Is a Mammal?
Write the correct word from the Word Bank next to the definition.
[ Word Bank ]
What is a mammal?
What animals are mammals?
foal
munch
nutrients
pouch
1. a type of animal that drinks milk from its mother's body
when it is young
2. a young horse
Where do mammals live?
3. a pocket of skin on the stomach which kangaroos use for
carrying their babies
4. to eat something noisily
5. to go into a long, deep sleep-usually in winter
What are the common characteristics of mammals?
6. substances that living things need to grow and be healthy
hibernate
mammal
mammal
foal
pouch
munch
hibernate
nutrients
Circle the antonym of the underlined words.
Make more questions about what you want to know about ‘mammals’.
1. Most mammals give birth to their babies.
① protection
② death
③ nutrients
④ food
③ helping
④ healing
2. They feed them and protect them from harm.
① playing
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Four Corners Workbook
② injury
It’s a Mammal!
3
Comprehension Many Animals & What Is a Mammal?
Circle the answer.
Circle the answer.
1. What is a common fact for the animals below?
a cow
a koala
① They munch on hay.
③ They live in a tree.
1. What is the only food that most baby mammals eat?
a bat
a dog
② They hibernate in the winter.
④ They are mammals.
2. Which is true about mammals?
①
②
③
④
All the animals in the world are mammals.
They are almost the same as reptiles.
There are about 4,000 species of mammals in the world.
Mammals do not take care of their young.
Read the paragraph and circle the answer.
Mammals have certain things in common. Mammal mothers produce
milk for their babies to drink. Most mammals have fur, or hair, to keep
them warm. Their body temperature does not depend on the temperature
outside. Mammals also have a skeleton that is held together by a back
bone.
why mammals have certain things in common
what a mammal is
how mammals can survive
where we can see mammals
2. What can we know from the underlined sentence?
① Mammals are warm-blooded.
③ Mammals are cold-blooded.
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Four Corners Workbook
① water
② eggs
② Mammals feed and protect their babies.
④ Mammals take care of their young.
③ milk
④ nectar
2. Which is true about reptiles?
①
②
③
④
They are almost the same as mammals.
Reptiles also can make milk.
Reptiles take care of their young.
Baby reptiles take care of themselves almost from birth.
3. What conclusion can you draw from the sentences?
Lions teach their cubs how to hunt and protect themselves. Horses teach
their foals how to run.
①
②
③
④
Baby mammals take care of themselves almost from birth.
Mammal parents feed and protect their young.
Milk contains the water that babies need to survive.
Most mammals give birth to their babies.
4. What keeps water mammals warm?
① furry coat
③ nutrients
1. What is the main idea of the paragraph?
①
②
③
④
Comprehension What Is a Mammal?
② blubber
④ wool
5. What is the common fact for the animals below?
dormice
①
②
③
④
woodchucks
some bats
They are mammals that hibernate during the cold winter.
They are reptiles.
They are mammals that lay eggs.
They are mammals that have a warm pouch on their belly.
It’s a Mammal!
5
Vocabulary Where Mammals Live & Mammals on the Move
Complete the word puzzle.
❶
p
o l
l
a
n
t
Read the paragraph and circle the answer.
❷
i n a t e
d
a b s o r b
a
h u m p
a
i
t
e x t i n c t
b
d
f
i
o
t
r
a r c t i c
e
t
s
h u m a n s
l
Comprehension Where Mammals Live (1)
❸
Mammals live in many different places or
. They live in
grasslands and in deserts, on Arctic shores and in rainforests. Their
bodies have adapted to survive many different conditions.
❹
❺
❻
❼
❽
1. What is the paragraph about?
①
②
③
④
what mammals are endangered
where mammals live
how mammals move
why mammals hibernate during the cold winter
2. Which word goes in the blank?
① planets
② habitats
③ mountains
④ Arctic areas
3. What might the next paragraph be about?
① endangered animals
③ animals and their habitats
② nocturnal animals
④ hibernating animals
t
Across
Down
1. to place pollen on a flower
1. a living thing that has leaves and roots
3. to take in liquid from the surface or space
around something
5. a large round shape that rises above the
surface of something
and grows in earth
2. changed to survive in a particular habitat
4. a tropical forest where it rains a lot
5. places where plants and animals live
Circle the answer.
1. Where do camels gain energy from?
①
②
③
④
from substances stored inside their humps
from their big paws that have hair
from their fur made of hollow hairs
from their short wool under their long hair
6. not to exist any more
7. relating to the most northern part of the
world
8. people
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Four Corners Workbook
2. What allows polar bears to capture the heat of the sun?
① their blubber
③ their fur made of hollow hairs
② their big paws
④ their humps
It’s a Mammal!
7
Comprehension Where Mammals Live (2)
Comprehension Mammals on the Move
Circle the answer.
Circle the answer.
1. Why are mammals losing their habitats and food sources in many places?
①
②
③
④
Because mammals cannot live without their mother’s protection.
Because mammals hibernate during the cold winter.
Because mammals need the rainforest to live in.
Because humans are taking over land where mammals live.
2. What is a common fact for the animals below?
black rhinoceroses
①
②
③
④
tigers
woodland caribous
①
②
③
④
They are the only mammals that can fly.
Their thick foot pads protect them from the hot sand.
They hop around by pushing off the ground with their feet.
Their big paws have hair on the bottom to grip the ice.
2. What is a common fact for the animals below?
grey wolves
They are mammals that lay eggs.
They are reptiles.
They are endangered animals.
They are animals that have furs made of hollow hairs.
3. What conclusion can we draw from the paragraph below?
Mammals are losing their habitats and food sources in many places. Many
mammals live in areas where humans are taking over land. Animals cannot adapt
to this change.
①
②
③
④
1. Which is true about Australia’s kangaroos?
Some animals may soon become extinct.
Animals should adapt to their changed habitats.
Some animals live together with humans.
Animals can live in areas where humans are taking over land.
kangaroos
①
②
③
④
wallabies
humans
They keep their babies in their pouches.
They are two-legged mammals.
They are mammals that lay eggs.
They are nocturnal mammals.
3. Which animals are the only mammals that can fly?
① wallabies
② koalas
③ squirrels
④ bats
4. What do bats use to fly and hunt?
① echolocation
② antenna
③ big paws
④ wings
5. What are mammals that are active mostly at night?
① reptiles
③ nocturnal mammals
② humans
④ endangered mammals
4. Which is true about endangered animals?
①
②
③
④
8
They are animals that lay eggs.
They are animals that hibernate during the cold winter.
They are animals that may soon become extinct.
They are animals that protect their young.
Four Corners Workbook
6. Reread Book page 17 and write about how bats hunt.
Bat’s high-pitched squeaks bounce off objects and
echo back to them. This tells them where things are.
It’s a Mammal!
9
Vocabulary
Mammal Senses & Amazing Mammals
Comprehension Mammal Senses
Fill in the blanks with the correct words from the Word Bank.
Read the paragraph and circle the answer.
[ Word Bank ]
distance
faintest
twitchy
grooming
taster
sleepiest
senses
snatch
senses
1. Most mammals, like people, have five ______________. They are sight, sound, smell,
taste and touch.
2. Bushbabies see and hear far better than humans. At night their huge eyes pick up the
______________ light.
faintest
snatch
3. Then they swing out like acrobats to ______________ the insects in midair.
Most mammals, like people, have five senses. The five senses are sight,
sound, smell, taste and __________ . Many animals’ senses are better
than humans’.
1. What is the paragraph about?
① mammals’ habitats
③ mammals’ moves
② mammals’ senses
④ amazing mammals
2. Which word goes in the blank?
① touch
③ fly
② sniff
④ grooming
3. What might the next paragraph be about?
tasters
4. Rabbits are terrific ______________ because they have 17,000 taste buds. That’s 7,000
more than humans have.
twitchy
5. The hedgehog’s moist, ______________ nose can find worms about three centimeters
below the ground.
Grooming
6. ______________ seems to relax them and strengthen friendships.
sleepiest
7. The koala is the ______________ animal. It sleeps for up to 22 out of 24 hours each day.
distance
8. The fastest land mammal is the cheetah. For a short ______________, it can run at 95
kilometers per hour.
① animals and their senses
③ where mammals live
Circle the answer.
1. Which is true about hedgehogs?
①
②
③
④
Touch is important to hedgehogs.
They have poor sight but can smell very well.
They have 17,000 taste buds.
They see and hear far better than humans.
2. What makes monkeys seem to relax and strengthen friendships?
① sniffing
③ running
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Four Corners Workbook
② animals and their moves
④ endangered animals
② swing
④ grooming
It’s a Mammal!
11
Comprehension Mammal Senses & Amazing Mammals
Read the paragraph and circle the answer.
Final Test (1)
1. What supports mammals’ body?
① wings and feet
③ humps on their back
Bushbabies, animals similar to monkeys, see and hear far better than
_______. At night their huge eyes pick up the faintest light. Their large
ears swivel to track flying insects. Then they swing out like acrobats to
snatch the insects in midair.
1. What is the paragraph about?
② how bushbabies groom each other
④ humans’ senses
2. Which word goes in the blank?
② cheetah
③ rabbits
① They are reptiles.
③ They are mammals but lay eggs.
② They are water mammals.
④ They are hibernating animals.
② throw
①
②
③
④
During hibernation they usually do not eat.
Walruses and whales are hibernating animals.
They hibernate during the warm spring.
When the cold weather comes, they wake up.
④ humans
4. What helps polar bears grip the slippery ice?
3. What is a synonym of the underlined word?
① grip
2. What do the platypus and the echidna have in common?
3. Which is true about hibernating animals?
① why bushbabies see and hear well
③ bushbabies’ senses
① monkey
② furry coats of their body
④ skeleton and backbone
③ kick
④ fly
Write the answer from the box.
①
②
③
④
thick foot pads
big paws that have hair on the bottom of fat under the skin
long double eyelashes
a layer of fat under the skin
5. Write about how reptiles and mammals are different in your own words.
sloth
koala
cheetah
Mammals
Reptiles
1. Which animal is the slowest mammal?
sloth
2. Which animal sleeps for up to 22 hours out of 24 hours each day?
koala
3. Which animal can run at 95 kilometers per hour for a short distance?
cheetah
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Four Corners Workbook
They give birth to their babies.
They lay eggs.
They take care of their
young.
They produce milk.
They are warm-blooded.
They have fur on their body.
They do not make milk.
Baby reptiles take care
of themselves from
birth.
It’s a Mammal!
13
Grammar Conjunction Words (1)
Final Test (2)
1. What conclusion can you draw from the sentences below?
Brush-tailed rock wallabies have padded hind feet to help them grip the rocky
cliffs on which they live. They can jump about four meters high.
Circle the correct conjunction word to complete each sentence.
1. We will go skating ______ bike riding.
① or
①
②
③
④
Brush-tailed rock wallabies are nocturnal animals.
Brush-tailed rock wallabies are great jumpers.
Brush-tailed rock wallabies are water mammals.
Brush-tailed rock wallabies are endangered animals.
2. Which is true about bats?
①
②
③
④
They can see far better than humans.
They are active mostly at daytime.
They are the only mammals that can fly.
They cannot fly even though they have big wings.
② but
③ however
④ so
2. She wants to buy a sweater ______ a raincoat.
① but
② and
③ if
④ therefore
3. I wanted to go to the movies, ______ I didn’t have any money.
① or
② but
③ and
④ so
4. Jennifer ______ her father are washing the car.
① or
② and
③ but
④ if
3. Why do whales swim to the surface of water for air?
①
②
③
④
Because they are nocturnal animals.
Because it is very cold underwater.
Because they cannot breathe underwater.
Because they hunt for food.
Circle the correct conjunction word to complete each sentence.
4. Why do water mammals settle on beaches or sea ice at least once a year?
①
②
③
④
Because they hunt for food.
Because they give birth to their babies on land.
Because they cannot breathe underwater.
Because they cannot live in water.
5. Why do we say that rabbits are terrific tasters?
①
②
③
④
14
1. My mother wanted to go visit my grandmother, (and but) the car broke down.
2. Suzy went to the grocery store (and or) bought everything she needed.
3. He couldn’t decide if he wanted to go to Miami (but or) Los Angeles.
4. Dennis wants a computer (but or) a new bike for his fourteenth birthday.
Because touch is important to them.
Because they can smell very well.
Because they can see and hear far better than humans.
Because they have 17,000 taste buds.
Four Corners Workbook
It’s a Mammal!
15
Grammar Conjunction Words (2)
Writing Amazing Mammals
Circle the correct conjunction word to complete each sentence.
Choose one mammal and write about a fact file about it.
1. They are born when they are still tiny ______ only partly formed.
① and
② but
③ or
④ so
Name:
2. Mammals live in many different places, ______ habitats.
① but
② or
③ however
④ so
Where does it live?
3. They run, walk, ______ trot.
① or
② but
③ however
④ if
4. Most bats have sharp teeth ______ big ears.
① but
② however
③ yet
How does it get energy?
④ and
What are amazing facts about the animal?
Circle the correct conjunction word to complete each sentence.
1. Bats can see, (but or) some also use echolocation to fly and hunt.
2. Mammals, such as the dormouse, woodchuck (and however) some bats,
Write a paragraph using the information from the chart that you
completed above.
hibernate during the cold winter.
3. They feed them (and but) protect them from harm.
4. Most mammals give birth to their babies, (and however) the platypus and the
echidna lay eggs instead.
16
Four Corners Workbook
It’s a Mammal!
17
Listening Practice
MEMO
Listen to the sentence and fill in the blanks.
species of mammals.
1. There are about 4000 __________
fully formed when they are born.
2. Most mammal babies are __________
habitats
3. Mammals live in many different places, or __________.
extinct
4. Some animals may soon become __________.
seals and sea lions are also __________
water mammals.
5. Walruses, __________
Listen to the paragraph and fill in the blanks.
Nearly all baby mammals need their mothers’ milk to live. In fact, their mothers’
6. __________
milk is the only food most baby mammals eat. It is __________
full
nutrients
__________
of __________
to help them grow. It also contains the water they need to survive.
furry __________
coats like land mammals.
7. Many water mammals do not have __________
blubber Blubber is a layer of
Some water mammals, such as walruses, have __________.
fat
__________
under the skin. It keeps these mammals warm.
adapted to their cold Arctic habitat. Their fur is made of
8. Polar bears are well __________
hollow hairs that capture the __________
heat of the sun. Their tough, dark skin
__________
absorbs much of this warmth. They also have a thick layer of fat under their
__________
skin Their big paws have hair on the bottom to grip the __________
slippery ice.
__________.
four legs. They run, walk or __________.
trot
9. Most mammals move around on __________
leap
legged
Some jump and __________,
and others swim and fly. Some two-__________
mammals, like humans, walk, run or jump.
sharp teeth and big
10. Bats are the only mammals that can fly. Most bats have __________
leathery skin. This skin is __________
stretched over
ears. All bats have wings made of __________
vary in size. Some bats have
their arm and finger bones. Bats’ wings __________
wingspans of more than one meter while others have wingspans of only 15
__________
centimeters.
18
Four Corners Workbook
It’s a Mammal!
19
Four Corners
WORKBOOK
It’s a Mammal!
Publisher Jae-yoon Chung
Managing Director Hannah Lee
Senior Editor Jung-ah Kim
Project Editor Reese Ji
Written by Jeong Hee Choi
Proofread by Alwin G. Fontenot
Recorded by Yeasung Media Tech
Illustrated by Donghyun Lee, Youngjoo Jung
Designed by DOD Design
Printed by POD KOREA
Copyright © 2008 by Language World Co., Ltd.
All rights reserved. No part of this publication may be reproduced or distributed in any form
or by any means, or stored in a database or retrieval system,
without the prior written consent of Language World Co., Ltd., including, but not limited to,
in any network or other electronic storage or transmission, or broadcast for distance learning.
www.lwbooks.co.kr
First Edition in 2008
ISBN 978-89-256-0029-1