Bài 5: Đọc đoạn văn sau và trả lời câu hỏi.
Fossil fuels are fuels from fossils. The three most important fossil fuels are coal, petroleum, and natural
gas. They contain hydrocarbons, or things that have only hydrogen and carbon in them. Fossil fuels can be
used to make electricity in a power plant. They are burned to heat water into steam, which can push a fan-
like object called a turbine. When the turbine spins around, magnets in it make electricity. People also burn
coal to heat their homes, but they do not do it as much as they used to because it produces too much
pollution. In many homes, people burn natural gas in a stove to cook food. It may also be used for heating
the house. Fossil fuels produce a lot of pollution when burned. Also, they are limited resources, so they can
run out.
41: What does the word “them” in line 2 refer to?
A. fossils B. coal, petroleum and natural gas
C. hydrocarbons D. hygro and carbon
42: According to the passage, what is the fan- like object called?
A. steam B. turbine C. magnet D. electricity
43: Why isn’t coal burnt to heat home as much as they used to be?
A. Because it produces too much pollution .
B. Because it isn’t as effective as it used to be.
C. Because people have other fuels.
D. Because they are running out.
44: Why can fossil fuels run out?
A. Because they cause a lot of pollution.
B. Because they are used to make electricity.
D. Because they are limited resources.
45: Which of the following sentences is NOT true?
A. Fossil fuels are burnt to make electricity.
B. Burning fossil fuels produces a lot of pollution.
C. Only coal is used to heat the house.
D. People can use natural gas to cook food.
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