Star patterns in the winter are ________ star patterns in the summer.
A. Brighter than
B. Different from
C. Much smaller than
D. the same as
Read the followingpassage and mark the letter A, B, C or D onyour answer sheet to indicate the correct answer to each of the questions
Stellar Astronomy
Many parameters are used to describe a star. One of them is its temperature, which can be determined by simple observation; the color of a star and its temperature are related. Once the color of a star is identified, its temperature can be calculated through the use of scientific principles such as Wien’s Law.
There are different types of stars in the universe. For our purposes, we can classify them into two categories: variable and binary. Variable stars are those which show some degree of variability in their luminosity and magnitude. Luminosity refers to the amount of energy radiated by a star, while magnitude refers to its brightness. At time the degree of variability may be high, requiring a telescope with an equally high light- gathering power. This can be achieved by using a lens of large diameter, such as that of a reflecting telescope.
Binary stars are those found in pairs that revolve around a common center. The closest star to the sun, Proxima Centauri, is a binary star. To observe a binary star, the resolving power of a telescope - its ability to distinguish between two close objects having a small angular separation - must be very high.
Stellar astronomy is possible for a everyone, well beyond mere looking at the sky with the naked eye in order to identify constellations. With two basic of telescopes and rudimentary knowledge, much exploration can be achieved.
The word “ rudimentary” in paragraph 4 is closest in meaning to
A. Advanced
B. Formal
C. Basic
D. Important
Đáp án là C.
rudimentary: sơ khai = basic: căn bản
Các từ còn lại: Advanced: tiên tiến; formal: chính thức; important: quan trọng
Read the followingpassage and mark the letter A, B, C or D onyour answer sheet to indicate the correct answer to each of the questions
Stellar Astronomy
Many parameters are used to describe a star. One of them is its temperature, which can be determined by simple observation; the color of a star and its temperature are related. Once the color of a star is identified, its temperature can be calculated through the use of scientific principles such as Wien’s Law.
There are different types of stars in the universe. For our purposes, we can classify them into two categories: variable and binary. Variable stars are those which show some degree of variability in their luminosity and magnitude. Luminosity refers to the amount of energy radiated by a star, while magnitude refers to its brightness. At time the degree of variability may be high, requiring a telescope with an equally high light- gathering power. This can be achieved by using a lens of large diameter, such as that of a reflecting telescope.
Binary stars are those found in pairs that revolve around a common center. The closest star to the sun, Proxima Centauri, is a binary star. To observe a binary star, the resolving power of a telescope - its ability to distinguish between two close objects having a small angular separation - must be very high.
Stellar astronomy is possible for a everyone, well beyond mere looking at the sky with the naked eye in order to identify constellations. With two basic of telescopes and rudimentary knowledge, much exploration can be achieved.
The word “parameters” in paragraph 1 is closest in meaning to
A. Measurements
B. Laws
C. Categories
D. Numbers
Đáp án là A.
parameters = measurements: các thông số
Nghĩa các từ còn lại: law: luật; categories: các loại; numbers: các số đếm
Read the followingpassage and mark the letter A, B, C or D onyour answer sheet to indicate the correct answer to each of the questions
Stellar Astronomy
Many parameters are used to describe a star. One of them is its temperature, which can be determined by simple observation; the color of a star and its temperature are related. Once the color of a star is identified, its temperature can be calculated through the use of scientific principles such as Wien’s Law.
There are different types of stars in the universe. For our purposes, we can classify them into two categories: variable and binary. Variable stars are those which show some degree of variability in their luminosity and magnitude. Luminosity refers to the amount of energy radiated by a star, while magnitude refers to its brightness. At time the degree of variability may be high, requiring a telescope with an equally high light- gathering power. This can be achieved by using a lens of large diameter, such as that of a reflecting telescope.
Binary stars are those found in pairs that revolve around a common center. The closest star to the sun, Proxima Centauri, is a binary star. To observe a binary star, the resolving power of a telescope - its ability to distinguish between two close objects having a small angular separation - must be very high.
Stellar astronomy is possible for a everyone, well beyond mere looking at the sky with the naked eye in order to identify constellations. With two basic of telescopes and rudimentary knowledge, much exploration can be achieved.
The word “radiated” in paragraph 2 is closest in meaning to
A. Received
B. Sent out
C. Burnt
D. Controlled
Đáp án là B.
radiated: được chiếu, tỏa ra = send out: được gửi đi, phân phát
Nghĩa các từ còn lại: received: được nhận; burnt: được đốt cháy; controlled: được điều khiển
Read the followingpassage and mark the letter A, B, C or D onyour answer sheet to indicate the correct answer to each of the questions
Stellar Astronomy
Many parameters are used to describe a star. One of them is its temperature, which can be determined by simple observation; the color of a star and its temperature are related. Once the color of a star is identified, its temperature can be calculated through the use of scientific principles such as Wien’s Law.
There are different types of stars in the universe. For our purposes, we can classify them into two categories: variable and binary. Variable stars are those which show some degree of variability in their luminosity and magnitude. Luminosity refers to the amount of energy radiated by a star, while magnitude refers to its brightness. At time the degree of variability may be high, requiring a telescope with an equally high light- gathering power. This can be achieved by using a lens of large diameter, such as that of a reflecting telescope.
Binary stars are those found in pairs that revolve around a common center. The closest star to the sun, Proxima Centauri, is a binary star. To observe a binary star, the resolving power of a telescope - its ability to distinguish between two close objects having a small angular separation - must be very high.
Stellar astronomy is possible for a everyone, well beyond mere looking at the sky with the naked eye in order to identify constellations. With two basic of telescopes and rudimentary knowledge, much exploration can be achieved.
The temperature of a star can be determined by its
A. Size
B. Color
C. Movement
D. Luminosity
Đáp án là B.
Color. Ý trong đoạn 1: One of them is its temperature, which can be determined by simple observation; the color of a star and its temperature are related
Read the followingpassage and mark the letter A, B, C or D onyour answer sheet to indicate the correct answer to each of the questions
Stellar Astronomy
Many parameters are used to describe a star. One of them is its temperature, which can be determined by simple observation; the color of a star and its temperature are related. Once the color of a star is identified, its temperature can be calculated through the use of scientific principles such as Wien’s Law.
There are different types of stars in the universe. For our purposes, we can classify them into two categories: variable and binary. Variable stars are those which show some degree of variability in their luminosity and magnitude. Luminosity refers to the amount of energy radiated by a star, while magnitude refers to its brightness. At time the degree of variability may be high, requiring a telescope with an equally high light- gathering power. This can be achieved by using a lens of large diameter, such as that of a reflecting telescope.
Binary stars are those found in pairs that revolve around a common center. The closest star to the sun, Proxima Centauri, is a binary star. To observe a binary star, the resolving power of a telescope - its ability to distinguish between two close objects having a small angular separation - must be very high.
Stellar astronomy is possible for a everyone, well beyond mere looking at the sky with the naked eye in order to identify constellations. With two basic of telescopes and rudimentary knowledge, much exploration can be achieved.
What is the topic of the passage?
A. Types of stars and how to observe them.
B. The differences between binary and variable stars
C. Types of telescopes
D. The color and temperature of stars
Đáp án là A.
Các loại sao và làm thế nào để quan sát chúng. Đọc nội dung cả bài chúng ta dễ dàng chọn được đáp án này.
Read the followingpassage and mark the letter A, B, C or D onyour answer sheet to indicate the correct answer to each of the questions
Stellar Astronomy
Many parameters are used to describe a star. One of them is its temperature, which can be determined by simple observation; the color of a star and its temperature are related. Once the color of a star is identified, its temperature can be calculated through the use of scientific principles such as Wien’s Law.
There are different types of stars in the universe. For our purposes, we can classify them into two categories: variable and binary. Variable stars are those which show some degree of variability in their luminosity and magnitude. Luminosity refers to the amount of energy radiated by a star, while magnitude refers to its brightness. At time the degree of variability may be high, requiring a telescope with an equally high light- gathering power. This can be achieved by using a lens of large diameter, such as that of a reflecting telescope.
Binary stars are those found in pairs that revolve around a common center. The closest star to the sun, Proxima Centauri, is a binary star. To observe a binary star, the resolving power of a telescope - its ability to distinguish between two close objects having a small angular separation - must be very high.
Stellar astronomy is possible for a everyone, well beyond mere looking at the sky with the naked eye in order to identify constellations. With two basic of telescopes and rudimentary knowledge, much exploration can be achieved.
Complete the table by choosing a phrase to match the heading
A. Include the sun
B. Can be viewed without a telescope
C. Display the greatest luminosity
D. Include Proxima Centauri
Đáp án là B.
Can be viewed without a telescope - Có thể được xem mà không một kính thiên văn
Read the followingpassage and mark the letter A, B, C or D onyour answer sheet to indicate the correct answer to each of the questions
Stellar Astronomy
Many parameters are used to describe a star. One of them is its temperature, which can be determined by simple observation; the color of a star and its temperature are related. Once the color of a star is identified, its temperature can be calculated through the use of scientific principles such as Wien’s Law.
There are different types of stars in the universe. For our purposes, we can classify them into two categories: variable and binary. Variable stars are those which show some degree of variability in their luminosity and magnitude. Luminosity refers to the amount of energy radiated by a star, while magnitude refers to its brightness. At time the degree of variability may be high, requiring a telescope with an equally high light- gathering power. This can be achieved by using a lens of large diameter, such as that of a reflecting telescope.
Binary stars are those found in pairs that revolve around a common center. The closest star to the sun, Proxima Centauri, is a binary star. To observe a binary star, the resolving power of a telescope - its ability to distinguish between two close objects having a small angular separation - must be very high.
Stellar astronomy is possible for a everyone, well beyond mere looking at the sky with the naked eye in order to identify constellations. With two basic of telescopes and rudimentary knowledge, much exploration can be achieved.
Why does the author write that “stellar astronomy is possible for everyone”?
A. To emphasize that it is easy to become an astronomer
B. To encourage people to try observing stars
C. To show that most people know a lot about stars
D. To explain why astronomy is popular
Đáp án là B
“stellar astronomy is possible for everyone “ - Thiên văn học về sao là có thể cho tất cả mọi người.
B. Để khuyến khích mọi người cố gắng quan sát sao
Read the followingpassage and mark the letter A, B, C or D onyour answer sheet to indicate the correct answer to each of the questions
Stellar Astronomy
Many parameters are used to describe a star. One of them is its temperature, which can be determined by simple observation; the color of a star and its temperature are related. Once the color of a star is identified, its temperature can be calculated through the use of scientific principles such as Wien’s Law.
There are different types of stars in the universe. For our purposes, we can classify them into two categories: variable and binary. Variable stars are those which show some degree of variability in their luminosity and magnitude. Luminosity refers to the amount of energy radiated by a star, while magnitude refers to its brightness. At time the degree of variability may be high, requiring a telescope with an equally high light- gathering power. This can be achieved by using a lens of large diameter, such as that of a reflecting telescope.
Binary stars are those found in pairs that revolve around a common center. The closest star to the sun, Proxima Centauri, is a binary star. To observe a binary star, the resolving power of a telescope - its ability to distinguish between two close objects having a small angular separation - must be very high.
Stellar astronomy is possible for a everyone, well beyond mere looking at the sky with the naked eye in order to identify constellations. With two basic of telescopes and rudimentary knowledge, much exploration can be achieved.
A. They vary in brightness
B. They rotate around each other.
C. They vary in color.
D. The size of the telescope must vary in order to observe them.
Đáp án là A.
Ý trong đoạn 2: Luminosity refers to the amount of energy radiated by a star, while magnitude refers to its brightness . Tính sáng đề cập đến lượng năng lượng bức xạ của một ngôi sao, trong khi cường độ đề cập đến độ sáng của nó
Read the followingpassage and mark the letter A, B, C or D onyour answer sheet to indicate the correct answer to each of the questions
Stellar Astronomy
Many parameters are used to describe a star. One of them is its temperature, which can be determined by simple observation; the color of a star and its temperature are related. Once the color of a star is identified, its temperature can be calculated through the use of scientific principles such as Wien’s Law.
There are different types of stars in the universe. For our purposes, we can classify them into two categories: variable and binary. Variable stars are those which show some degree of variability in their luminosity and magnitude. Luminosity refers to the amount of energy radiated by a star, while magnitude refers to its brightness. At time the degree of variability may be high, requiring a telescope with an equally high light- gathering power. This can be achieved by using a lens of large diameter, such as that of a reflecting telescope.
Binary stars are those found in pairs that revolve around a common center. The closest star to the sun, Proxima Centauri, is a binary star. To observe a binary star, the resolving power of a telescope - its ability to distinguish between two close objects having a small angular separation - must be very high.
Stellar astronomy is possible for a everyone, well beyond mere looking at the sky with the naked eye in order to identify constellations. With two basic of telescopes and rudimentary knowledge, much exploration can be achieved.
Complete the summary by choosing one sentence (A, B, C or D) that is among the most important information to fill in the blank.
A. Variable stars may differ in the amount of energy they radiate or in their luminosity.
B. Variable stars change in brightness and luminosity, and require a telescope with a large lens
C. Proxima Centauri, the closest star to Earth, is a binary star and requires a large telescope for observation
D. Many different types of stars exist, but the most important categories are variable and binary stars.
Đáp án là B.
Câu B này chính là câu tóm tắt ý cho đoạn 2.