These bats learn to eavesdrop—in order to survive

English	Tiếng Việt
Bats fly at night.	Dơi bay vào ban đêm.
They use echolocation to find food.	Chúng sử dụng định vị bằng tiếng vang để tìm thức ăn.
Frogs make calls to find mates.	Ếch phát ra tiếng kêu để tìm bạn tình.
Some bats listen to these calls to find frogs.	Một số dơi lắng nghe những tiếng kêu này để tìm ếch.
Fringe-lipped bats eat frogs.	Dơi môi tua ăn ếch.
They can tell which frogs are safe to eat.	Chúng có thể phân biệt ếch nào an toàn để ăn.
Young bats learn by watching older bats.	Dơi non học bằng cách quan sát dơi trưởng thành.
They learn which frog calls mean good food.	Chúng học tiếng kêu của ếch nào là thức ăn tốt.
Some frogs are poisonous.	Một số ếch có độc.
Bats avoid poisonous frogs.	Dơi tránh ếch độc.
Bats use their ears to listen.	Dơi sử dụng tai để lắng nghe.
They also use their eyes to see.	Chúng cũng sử dụng mắt để nhìn.
Bats live in forests.	Dơi sống trong rừng.
Frogs live near water.	Ếch sống gần nước.
At night, the forest is full of frog calls.	Vào ban đêm, rừng đầy tiếng kêu của ếch.
Bats fly quietly to catch frogs.	Dơi bay lặng lẽ để bắt ếch.
They use sound to find frogs.	Chúng sử dụng âm thanh để tìm ếch.
Bats are smart animals.	Dơi là loài vật thông minh.
They learn from their mothers.	Chúng học từ mẹ của chúng.
Bats remember which frogs are good to eat.	Dơi nhớ ếch nào là tốt để ăn.
Bats and frogs share the forest.	Dơi và ếch cùng sống trong rừng.
Bats help keep the number of frogs balanced.	Dơi giúp giữ số lượng ếch cân bằng.
Scientists study bats and frogs.	Nhà khoa học nghiên cứu dơi và ếch.
They learn how bats find food.	Họ tìm hiểu cách dơi tìm thức ăn.
Nature is full of interesting things.	Thiên nhiên đầy những điều thú vị.

Vocabulary List

Word	Part of Speech	Phonemic Symbol	Vietnamese Meaning	Example Sentence
bat	noun	/bæt/	dơi	The bat flies at night.
frog	noun	/frɒɡ/	ếch	A frog jumps into the water.
call	noun/verb	/kɔːl/	tiếng kêu, kêu	The frog makes a loud call.
echolocation	noun	/ˌekəʊləʊˈkeɪʃn/	định vị bằng tiếng vang	Bats use echolocation to find food.
fringe-lipped bat	noun	/frɪndʒ-lɪpt bæt/	dơi môi tua	A fringe-lipped bat eats frogs.
poisonous	adjective	/ˈpɔɪzənəs/	độc	That frog is poisonous.
ear	noun	/ɪə(r)/	tai	Bats listen with their ears.
eye	noun	/aɪ/	mắt	The bat sees with its eyes.
forest	noun	/ˈfɒrɪst/	rừng	Frogs live in the forest.
water	noun	/ˈwɔːtə(r)/	nước	Frogs jump into the water.
sound	noun	/saʊnd/	âm thanh	Bats hear the sound of frogs.
mother	noun	/ˈmʌðə(r)/	mẹ	The young bat follows its mother.
scientist	noun	/ˈsaɪəntɪst/	nhà khoa học	A scientist studies frogs.
nature	noun	/ˈneɪtʃə(r)/	thiên nhiên	Nature is full of animals.
night	noun	/naɪt/	ban đêm	Bats come out at night.
food	noun	/fuːd/	thức ăn	Frogs are food for bats.
learn	verb	/lɜːn/	học	Bats learn from other bats.
young	adjective	/jʌŋ/	non, trẻ	The young bat is small.
old	adjective	/əʊld/	già	The old bat teaches the young.
safe	adjective	/seɪf/	an toàn	Some frogs are safe to eat.
dangerous	adjective	/ˈdeɪndʒərəs/	nguy hiểm	Poisonous frogs are dangerous.
catch	verb	/kætʃ/	bắt	The bat tries to catch the frog.
fly	verb	/flaɪ/	bay	Bats fly in the sky.
see	verb	/siː/	nhìn	The bat can see the frog.
listen	verb	/ˈlɪsn/	lắng nghe	Bats listen to frog calls.

Vocabulary Review Tasks

Task 1: Fill in the Blank (Reviewing items 1–5)

Fill in the blanks with the correct vocabulary word.

A ______ uses echolocation to find its way in the dark.
The ______ makes a noise to attract a mate.
The bat follows the frog’s ______ to locate it.
______ helps animals "see" with sound.
The - ______ eats frogs by listening to their calls.

Task 2: Unscramble the Words (Reviewing items 6–10)

Unscramble the letters to form a vocabulary word.

OUIPOSNOIS = __________
RAE = __________
EYE = __________
ROTSEF = __________
RETWA = __________

Task 3: Synonym Matching (Reviewing items 11–15)

Match each word to its closest synonym.

Vocabulary Word	Synonym Letter
11. sound	a. mom
12. mother	b. expert
13. scientist	c. audio
14. nature	d. environment
15. night	e. dark hours

Task 4: Gap Fill – Paragraph Format (Reviewing items 16–20)

Fill in the blanks with the correct vocabulary word.

The baby bat needed ______ to grow strong. It would ______ from its ______ how to hunt. While the bat was still ______, it stayed close to its mother. The forest could be a ______ or a dangerous place.

Task 5: Multiple Choice (Reviewing items 21–25)

Choose the correct word to complete each sentence.

Some frogs are very ______ to eat.
a) safe
b) dangerous
c) young
d) soft
The bat can ______ insects while flying.
a) see
b) listen
c) catch
d) swim
Bats use their eyes to ______ in daylight.
a) hear
b) catch
c) see
d) eat
When bats fly, they ______ above the trees.
a) walk
b) fly
c) hop
d) sleep
To hunt frogs, bats must ______ carefully.
a) run
b) jump
c) listen
d) sleep

Answer Keys

Task 1: Fill in the Blank

bat
frog
call
echolocation
fringe-lipped bat

Task 2: Unscramble the Words

poisonous
ear
eye
forest
water

Task 3: Synonym Matching

1. sound → c. audio
1. mother → a. mom
1. scientist → b. expert
1. nature → d. environment
1. night → e. dark hours

Task 4: Gap Fill – Paragraph Format

The baby bat needed food to grow strong. It would learn from its mother how to hunt. While the bat was still young, it stayed close to its mother. The forest could be a safe or a dangerous place.

Task 5: Multiple Choice

b) dangerous
c) catch
c) see
b) fly
c) listen