Unit 9 undersea world (1)

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London
Liverpool
Warsaw
(England)
(England)


UNIT 9 UNDERSEA WORLD
I. Pre-writing:
1. Pre-teach vocabulary:
Sperm (whale)

Cá nhà táng

Carnivore (n)

Động vật ăn thịt

Gestation (n)

Thời kỳ mang thai

Life span
Squid
(n)

Vòng đời
Mực ống


* Checking vocabulary:

Matching

a. Life span

1. Cá nhà táng

b. Carnivore (n)

2. Mực ống

c. Squid

3. Vòng đời

(n)

d. Sperm (whale)

4. Thời kỳ mang thai

e. Gestation (n)

5. Động vật ăn thịt


2. Comprehension questions:
a. Are sperm whales the largest animals on Earth
that have teeth? Yes, they are.
b. Where are sperm whales?
Sperm whales can be found in all oceans.
c. Would you tell me the length and the weight of a
male/ a female?
The males are 18m long and 54,000 kg heavy.
The females are 12m long and 17,000 kg heavy.
d. How long is a gestation period?
Fourteen to nineteen months.
e. How long can sperm whales be?
Sixty or seventy years.
f. What are special features of sperm whales?
They have the largest brain of mammals.

RANGE and
HABIT
SIZE

All oceans – Prefer waters with high
squid populations
Male: 18m in length; 54,000 kg in weight
Female; 12m in length; 17,000 kg in weight

FEEDING
HABITS

Carnivores; eat mainly squid
Eat up to 1,500 kg of food daily

OFFSPRING

Give birth to one calf every 5 - 7 years
Gestation period: 14 - 19 months

LIFE SPAN

Up to 60 - 70 years

SPECIAL
FEATURES

Biggest animals that have teeth on Earth
Have the largest brain of all mammals

CONSERVATION
CONCERNS

At risk due to hunting and accidental
fishing net entrapment


RANGE and
HABIT
SIZE
FEEDING
HABITS
OFFSPRING

Oceans worldwide
Prefer coastal waters and bays
Smallest: about 50 kg and 1.2m
Largest: up to 8,200 kg and 10m
Carnivores. Eat most fish
Give birth to one calf every 2 years
Gestation period: 12- 14 months

LIFE SPAN

From 25 - 65 years -Sometimes longer,
depending on the species

SPECIAL
FEATURES

Mammals, not fish
Among the most intelligent animals

CONSERVATION
CONCERNS

At risk due to habitat pollution and
accidental fishing net entrapment


DOLPHIN
Dolphins are not fish. They are mammals that live in the
water. Dolphins are among the most intelligent animals on
Earth. Although they can be found in all the oceans in the
world, dolphins prefer coastal waters and bays. The size of
dolphins varies greatly. The smallest dolphin is just about 50
kg in weight and 1.2 m in length while the largest one can
weigh up to 8,200 kg and is 10 m long. Dolphins are
carnivores and they eat mainly fish. A female dolphin gives
birth to one calf every 2 years after a gestation period of
eleven to twelve months. A dolphin can normally live from
twenty-five to sixty-five years and some species of dolphins
can even live longer. Dolphin populations are at risk due to the
pollution of their habitat and accidental entrapment in fishing
net.


1. RANGE
and HABIT

2. SIZE
3. FEEDING
HABITS
4. OFFSPRING
5. SPECIAL
FEATURES
6. LIFE SPAN

a. Carnivores; Eat mainly small
shrimp-like animals called krill
b. The largest animals of all time
A baby blue whale gains about 90
kg a day
c. Oceans throughout the world
Tropical waters in winter, Arctic
and Antarctic waters in summer
d. Endangered due to hunting

e. Length: up to 29 m
Weight: about 136,000 kg
Females tend to grow larger than males

f. Up to 100 years
7. CONSERVATION g. Give birth to one calf
CONCERNS
Gestation period: about 11 months