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3. 同样的问题也发生在欧洲的城市。听一听,判断下面的表述是否相符,相符的写“T”,不符的写“F”。
(
(
(
(
(
(
T
)① The air was dirty in London by the 1950’s.(
F
)② The smog(烟雾)lasted for five days in London.(
F
)③ Fewer than four thousand people died because of the dirty air.(
T
)④ A lot of dirty air came from coal(煤)because people used it to keep warm.(
F
)⑤ A few years later, the air in London was still dirty.
答案：
①T②F③F④T⑤F
听力原文
By the 1950's, the air pollution got so bad in London. In 1952, there was a smog that lasted four days. And over four thousand people died because the air was so dirty. It was called "The Great Smog of London". People thought the dirty air came from the factories, but a lot of it came from coal because people used it in their houses to keep warm in winter. Then the government limited people from using coal. A few years later, the air became much cleaner.
听力原文
By the 1950's, the air pollution got so bad in London. In 1952, there was a smog that lasted four days. And over four thousand people died because the air was so dirty. It was called "The Great Smog of London". People thought the dirty air came from the factories, but a lot of it came from coal because people used it in their houses to keep warm in winter. Then the government limited people from using coal. A few years later, the air became much cleaner.
4. 科学课上,老师正在讲解关于空气的知识,听录音,填入所缺的单词。
What is air? It has no colour,
What is air? It has no colour,
smell
or taste
. We can feel it. Air is important
to the world. People, animals and plants all need
it. So we must keep the air clean
. Don’t drive to school or work if you can take a bus or the underground
. Of course, walking and riding
a bike is the best. A lot of smoke
comes out from the factories every day. The air around the factories isn’t fresh
. The workers should plant more trees
inside and outside the factories to keep the air clean.
答案：
smell, taste, important, need, clean, underground, riding, smoke, fresh, trees
5. 同学们在和外国朋友们讨论空气的性质、作用以及治理问题,帮助他们选择正确的表达吧！
(
A.keep
B.keeping
C.keeps
(
C
)① It ______ them high in the sky.A.keep
B.keeping
C.keeps
答案：
C
(
A.and
B.or
C.of
B
)② It has no colour ______ shape.A.and
B.or
C.of
答案：
B
(
A.were, is
B.is, was
C.was, is
C
)③ The air here ______ clean in the past, but now sometimes it ______ dirty.A.were, is
B.is, was
C.was, is
答案：
C
( )④ We should open the window to keep the air
A.fresh
B.nice
C.dirty
A
in the classroom.A.fresh
B.nice
C.dirty
答案：
A
( )⑤ Don’t throw stones. That will
A.get
B.make
C.help
B
Mum angry.A.get
B.make
C.help
答案：
B
6. Peter 正在写关于空气的报告,请帮助他写出所给单词的适当形式吧。
① Dirty air
② The bad news from the teacher makes
③ We should
④ The floor was dirty this morning, but now it is clean. Someone
⑤ The smoke in the street
⑥ Trees
① Dirty air
makes
(make) us feel uncomfortable.② The bad news from the teacher makes
them
(they) sad.③ We should
plant
(plant) more trees to keep the air clean.④ The floor was dirty this morning, but now it is clean. Someone
cleaned
(clean) the classroom.⑤ The smoke in the street
comes
(come) from the buses and cars.⑥ Trees
keep
(keep) the air clean.
答案：
①makes②them③plant④cleaned⑤comes⑥keep
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