Portuguese activity, aimed at students in the ninth year of elementary school, explores the determined subjects. Hidden subject, simple subject and compound subject! Let's analyze them in the curious text How does whale and dolphin breathing work? So, answer the various questions proposed!
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SCHOOL: DATE:
PROF: CLASS:
NAME:
Read:
That they are mammals you already know. Among many peculiarities, being a mammal means having lungs and needing oxygen from the air (not water!) to breathe. So how can whales and dolphins spend their lives underwater without drowning?
The secret is to rise to the surface to breathe and, of course, have a huge breath to spend a lot of time underwater before coming back to the surface again. We humans, like most mammals, breathe in and out all the time, and so, without realizing it, we renew the air in our lungs little by little and constantly. It's different with aquatic mammals: they renew a large amount of air each time they rise to breathe and this gives them the breath to spend a good deal of time underwater.
Upon reaching the surface, the first part of the body of marine mammals to appear are the breathing holes – whales have two and dolphins one. Also called spiracle, these regions are sensitive like our nose and, in a fraction of a second, they sense the outside air and open up. At that moment, the old air is expelled – it comes out with such force that it splashes the water from the surface, making the biggest fountain – and the new air enters.
Whales control their breathing very well: with each inhalation they can renew up to 90% of the air in the lungs, while we humans manage only 15%. This, of course, gives them incredible breath. The sperm whale, for example, can go up to an hour and a half without breathing. After that, she quickly rises for air.
Each whale and each dolphin has its time to surface, and this is absolutely essential for not drowning.
Sicilian Salvatore. “Ciência Hoje das Crianças” magazine. Edition 265. Available in: .
Question 1 - Reread this period of the text:
"That they are mammals you already know."
Now, identify what the subject "they" refers to:
Question 2 - In the excerpt “[…] we renew the air in our lungs”, the subject of the verb is:
( ) hidden.
( ) nonexistent.
( ) undetermined.
Question 3 - The subject is composed in the sentence:
( ) “[…] whales and dolphins can spend their lives underwater […]”
( ) “[…] these regions are sensitive like our nose […]”
( ) “The sperm whale, for example, can stay up to an hour and a half […]”
Question 4 – The nuclei of the composite subject, identified in the question above, are:
( ) adjectives.
( ) pronouns.
( ) nouns.
Question 5 - Classify the subject of the underlined verbs, numbering according to the orientation:
( 1 ) Subject hidden.
( 2 ) Simple subject.
(3) Compound subject.
( ) "The secret it is in rising to the surface to breathe […]"
( ) “[…] with each inhalation can renew up to 90% of the air in the lungs […]"
( ) “Each whale and each dolphin has its time to surface […]"
Question 6 – In the sentence “[…] the old air is expelled […]”, the verbal expression indicates that the subject is:
( ) agent.
( ) patient.
( ) agent and patient.
Question 7 – In “Whales control their breathing very well […]”, the verb expresses:
( ) an action of the whales.
( ) a state of whales.
( ) an attribute of whales.
Question 8 – In the fragment “That, of course, gives them incredible breath.”, the simple subject is a demonstrative pronoun that takes up the fact:
A:
Per Denyse Lage Fonseca
Graduated in Languages and specialist in distance education.
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