A.
Checking your understanding
I.
Answer the following questions:
1)
What problem is the passage deal with?
2)
What is the main idea of the text?
3)
Does the title of the passage adequately express the main idea?
4)
Have you ever watched films about radioactive disasters? Which
one(s)?
II.
Review questions:
1)
Why would two solid materials in contact transfer heat better than a
solid in contact with a gas or a gas with a liquid?
2)
What happens when a gas or liquid is heated?
3)
What is the third method to transfer heat?
4)
Can you cool an object by radiation? Why (not)?
5)
How do atoms or molecules transfer kinetic energy to their
neighbors?
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III.
Look through the passage and fill in the blanks with the proper words.
1.
We are heated from the Sun through
transfer of heat.
2.
However, the heat transfer only works in one
.
3.
Good conductors of
are often good conductors of heat.
4.
Heat transfer is the transfer of thermal energy from a higher
object or system to another system, raising its temperature.
5.
When objects are in contact this transfers
by conduction.
B.
Work with language
I.
Put all possible questions to the following sentences.
1)
Conduction is mainly seen with solid objects, but it can happen when
any materials come into contact.
2)
When you put your hand in a container of warm water, you hand it
heated by conduction from the water.
3)
Atoms can radiate energy that can energize a distant atom, resulting in
heat transfer by radiation.
4)
Thermal energy can be transferred from one substance to another
when they are in direct contact.
5)
The moving molecules of one material can increase the energy of the
molecules of the other.
II.
Guess the words:
1)
uidliq
2)
toseparnia
3)
rdioaaitn
4)
crtaineno
5)
yegner
III.
Match these words with their opposites:
A.
local, temporary, general, concentrated, synthesized, outdated, deep,
pure, natural, simple, fast, exact, small
B.
slow, complicated, global, up-to-date, vast, shallow, permanent, man-
made, diluted, decomposed, approximate, specific, contaminated.
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IV.
Render the text into English:
Достарыңызбен бөлісу: |