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TOEFL Directory > TOEFL writing > TOEFL Listening Class Unit 1 Passage 30
TOEFL Listening Class Unit 1 Passage 30
First of all, you need to know what is TOEFL listening Pattern.
Second, in the course of listening, just pay attention on what you know, if you missed something, just let it go . don't try to figure out what you missed .
Finally, after finishing the passage, don't go answers immediately. use about 5 seconds to review the passage specially last two sentence. then go answers one by one. don't saty in one question for a long time.
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191. What is the talk mainly about?
The differences between butterflies and frogs
The life cycle of higher animals
Developmental changes in certain animals
Evolutionary advantages of metamorphosis
192. What happens in direct development?
An animal maintains the same basic structure
throughout its life.
An animal gives birth to several offspring at
one time.
An animal lays its eggs in the fourth stage of
metamorphosis.
A young animal models its behavior after its
parents.
193. Why do butterflies lay their eggs on plants?
To provide a supply of food
To hide the eggs from birds
To provide an appropriate place to make a cocoon
To expose the eggs to sunlight
194. What is the sequence of the metamorphosis of a butterfly?
Click on a sentence. Then click on the space where it belongs.
Use each sentence only once. The first one is done for you.
A butterfly emerges from its cocoon.
A larva covers itself with silk.
Adult structures are developed.
A butterfly pumps blood into its wings.
1. A butterfly lays eggs, which become larvae.
2.
3.
4.
5.
195. What is an example of incomplete metamorphosis?
An animal is born with undeveloped lungs.
An animal is hatched directly into its adult form.
An animal undergoes only three stages of
changes.
An animal stops developing at the pupal stage.
196. Why does the professor mention toads and frogs?
Their pupal stages are very long.
They are examples of animals that undergo
metamorphosis.
They lay their eggs in water.
They eat roaches and grasshoppers.
Listen to the passage again and check out the script and correct answers.
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