Global warming refers to an increase in the earth's temperature. This temperature change in turn
causes a change in climate. A warmer earth may lead to changes in rainfall patterns, a rise in sea level,
and different impacts on plants, wildlife, and humans.
When scientists talk about global warming, they are mainly talking about what is caused by
humans. Finding out how we impact the environment makes it possible for us to change our behaviours.
Scientists think that the things we do that send gasses into the air are making our planet warmer. During
the Industrial Revolution, we began changing our climate through agriculture and industry. Both agriculture
and industry release huge amounts of gasses into the air. These gasses then help trap the sun's radiation
in the earth's atmosphere. Because of this, the earth is warming up. The warmer the earth gets, the more
water vapor is released into the air. Water vapor is a gas that keeps heat, which makes the global warming
even worse.
The Industrial Revolution was the time when people started using machines to make life easier.
Industry sends out gasses by burning fuels. The Industrial Revolution made it easier for humans to start
their lives in any places on Earth. People started cutting down forests which recycle gasses that keep heat
in the atmosphere. This makes it even harder to get rid of the gasses we create.
Global warming is a big problem that must be solved soon. If everybody joins together, there is a
chance that we can stop the process.
(Adapted from TOEFL Junior Reading)
Question 37: What does the passage mainly discuss?
A How humans can deal with global warming
B. The relationship between industry and environment
C. The impact of global warming on humans
D. How humans' argicultural and industrial activities worsen global warming
Question 38: The phrase "warming up" in the passage is CLOSEST in meaning to
A. cooling down
C. becoming hotter
Bbecoming more harmful
Dgetting bigger
Question 39: What is TRUE about Industrial Revolution?
A. This was the first time agriculture was known about.
BThis was the time when people were known to destroy the environment by cutting down trees.
C. This was the time when the largest number of machines are used in industry.
D. This was the time when the Earth faced the worst situation of global warming.
Question 40: Which of the following is NOT a problem of global warming?
A. Rising sea level
C Impacts on different species on Earth
B. Changes in rainfall patterns
DSnow and ice storms