Đề thi thử THPT Quốc Gia lần 3 năm 2019 môn Tiếng Anh trường THPT Chuyên Nguyễn Huệ
Đề thi THPT Quốc Gia năm 2019 môn Anh có đáp án
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ĐỀ THI THỬ THPT QUỐC GIA MÔN TIẾNG ANH
NĂM 2019 CÓ ĐÁP ÁN
Mark the word whose underlined part differs from the other three in pronunciation in
each of the following questions.
1:A. said B. raid C. paid D. laid
2: A. thoroughly B. astronaut C. compete D. atmosphere
Read the following passage and mark the correct answer to each of the following
questions.
ssSSSShhh… IT'S A SECRET!
Throughout history and in every civilisation, people have felt the need to communicate in
secret. In war time, military secrets need to be transferred securely to commanders without
being understood by the enemy. During revolutions, those plotting to overthrow the
establishment need to ensure their communications remain undisclosed. The history of
secret communication is long and fascinating. World events have changed on many
occasions because of secret messages - secrets that were kept and secrets that were not!
There are two ways to communicate in secret - either you conceal the fact that you are
sending a message at all, (‘steganography’) or you obscure the meaning of your message
rather than its actual existence ('cryptology'), steganography is very old. In 440 BC,the
Greek ruler, Histiaeus, sent a message to a fellow plotter in a revolt by shaving off the hair
of his most loyal slave, tattooing a message on his head, allowing the slave’s hair to grow
back, then sending him to deliver the message.The slave passed through enemy lines easily
since he seemed to be carrying no communication. Another very old form of steganography
is invisible ink. Inks made of simple organic materials such as milk orlemon juice, which
turn dark when held over a flame, were used as early as the first century AD for very serious
communications. During the Second World War, both sides raced to create new secret inks
and to find developers for the enemy'sinks, although in the end this form of steganography
became impractical due to the large amount of communications involved.
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Although steganography is a very clever way to communicate in secret, it does have an
Achilles heel. If the messenger does not do a particularly good job concealing their message
and some one finds it, all its secrets will be immediately revealed. This weakness soon led to
the idea of hiding the actual meaning of messages, so that they could not be read, even if
they were discovered. The result was the development of cryptology.
Cryptology hides the meaning of messages by using codes. Codes are essentially secret
languages. Julius Caesar invented one. He replaced every letter in a word by the letter three
places away from it in the alphabet. A was D, B was E, and soon. Later on, any code that
used a system of letter replacement such as this was referred to as a ‘Caesarcode’. Of course,
it doesn’t take much brain power to figure out most of these codes! Today, code makers
devise practically unbreakable codes using highly sophisticated mathematics and computer
power.
Are cryptology and steganography used now? Well, you may be surprised to learn that
secret communication is apart of everyday life! For example, every time you use your credit
card to buy something from a company over the Internet, cryptology is employed. Very
complicated codes turn your credit card number into a pile of gibberish that only the retailer
can decipher, not anyone else, steganography is also thriving in the digital world.
Secret messages can easily be hidden in e-mail, audio and image files. This is because most
digital documents contain useless areas of data, so some of their information can be altered
without obvious effect.This is of concern to governments as they fear that criminals may be
concealing messages in files sent over the Internet. One thing is certain - secret
communication is still just as much a part of life today as it was millennia ago!
[Source: SPOTLIGHT 11, Student’s Book, Express Publishing, 2007]
3: ‘Caesar Codes’.....
A. are usually quite easy to break. B. were all invented by Julius Caesar.
C. use sophisticated mathematics. D. only use certain letters of the alphabet.
4: The word undisclosed is closest in meaning to.....
A. decoded B. concealed C. unseen D. found
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5: In 440 BC, the Greek ruler, Histiaeus.....
A. learnt of a plot through a secret message.
B. secretly communicated with the enemy.
C. started a revolt by sending a hidden message.
D. sent a secret message past the enemy.
6: Invisible ink.....
A. can sometimes be made visible with heat.
B. was used the most effectively during WW2.
C. is the oldest form of steganography.
D. must be made from organic materials.
7: Steganography does not.....
A. depend on the skill of the messenger. B. pre-date cryptology
C. hide the meaning of a message. D. have any disadvantages.
8: Internet credit card transactions.....
A. make a retailer's job easier. B. use steganographic techniques.
C. are made secure by cryptology. D. are hidden in digital files.
9: Secret communication.....
A. can lead to revolutions or wars. B. has altered the course of history at times.
C. was only used in the past. D. was first used by military commanders.
10: Steganography is still used a lot today because.....
A. governments use it to send information securely.
B. secret communication is more important than ever before.
C. it can help to catch criminals.
D. it’s easy to hide secret messages in digital documents.
Mark the sentence that best combines each pair of sentences in the following questions.
11: There had been prior warnings of the earthquake. It came as a shock to the people living
in nearby villages.
Đề thi TNPT Quốc Gia năm 2019 môn Tiếng Anh có đáp án
Đề thi thử THPT Quốc Gia trường THPT Chuyên Nguyễn Huệ môn Tiếng Anh có đáp án nằm trong bộ đề thi THPT Quốc Gia môn Tiếng Anh do VnDoc.com sưu tầm và đăng tải. Đề kiểm tra môn Tiếng Anh được biên tập bám sát chương trình học của bộ GD - ĐT giúp học sinh lớp 12 củng cố kiến thức đã học hiệu quả.
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