Tính: $16\,\,200\,\,:\,\,5\,\,:\,\,40.$

Giá trị của biểu thức $8 \times 427 \times 3 + 6 \times 573 \times 4$ là:

Tổng của hai số là 95. Hiệu của hai số đó là 47. Tìm số lớn.

Tính: $16\,\,200\,\,:\,\,5\,\,:\,\,40.$

Hình vuông có cạnh là 6 cm. Chu vi hình vuông đó là:

Một con mèo nặng 3kg, con chó nặng gấp 5 lần con mèo. Hỏi tổng khối lượng của chó và mèo là bao nhiêu ki-lô-gam?

Hình vuông ABCD có tất cả bao nhiêu cặp cạnh vuông góc với nhau?

Một kho hàng có 52 bao gạo và 48 bao ngô, mỗi bao nặng 50kg. Hỏi tổng khối lượng gạo và ngô là bao nhiêu ki-lô-gam?

Một bao gạo nặng 30kg, một bao ngô nặng 40kg. Một xe ôtô chở 20 bao gạo và 50 bao ngô. Hỏi xe ôtô đó chở tất cả bao nhiêu ki-lô-gam gạo và ngô?

Cho hai số, biết số lớn hơn số bé 48 đơn vị và biết nếu thêm vào số bé 35 đơn vị thì được hai số có tổng bằng 335. Số lớn là:

Tính giá trị của biểu thức sau với a = 2015; $b = 2016:$
$A = \left( {a \times 1 - a:1} \right) \times \left( {b \times 2015 + b + 2015} \right)$.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

These days, photography is considered an art form. However, people did not always feel this way. It took one of the greatest photographers of all time to change public opinion about photography: Ansel Adams. Ansel Adams claimed that he knew his destiny when he first visited Yosemite, a national park, at the age of fourteen. Until then, the focus of his life had always been music; he had long dreamed of being a concert pianist, a career that would have required him to live an urban lifestyle. Instead, Adams found himself drawn to Yosemite and to other natural settings. Over time his love of photography became more influential than that of music. Contrary to the popular belief of the time, he believed photography to be an art form and often exhibited it as art. Due to his love of nature, Adams became devoted to the conservation of and access to wilderness. He believed that the American people needed to experience nature in all its glory. Adams felt that the experience of nature was a spiritual one, a view evidenced by many of his photographs.

Question 30: What can we infer about photographers before Adams' time?         

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

These days, photography is considered an art form. However, people did not always feel this way. It took one of the greatest photographers of all time to change public opinion about photography: Ansel Adams. Ansel Adams claimed that he knew his destiny when he first visited Yosemite, a national park, at the age of fourteen. Until then, the focus of his life had always been music; he had long dreamed of being a concert pianist, a career that would have required him to live an urban lifestyle. Instead, Adams found himself drawn to Yosemite and to other natural settings. Over time his love of photography became more influential than that of music. Contrary to the popular belief of the time, he believed photography to be an art form and often exhibited it as art. Due to his love of nature, Adams became devoted to the conservation of and access to wilderness. He believed that the American people needed to experience nature in all its glory. Adams felt that the experience of nature was a spiritual one, a view evidenced by many of his photographs.

Question 31: According to the passage, which of the following made Adams want to become a photographer?         

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

These days, photography is considered an art form. However, people did not always feel this way. It took one of the greatest photographers of all time to change public opinion about photography: Ansel Adams. Ansel Adams claimed that he knew his destiny when he first visited Yosemite, a national park, at the age of fourteen. Until then, the focus of his life had always been music; he had long dreamed of being a concert pianist, a career that would have required him to live an urban lifestyle. Instead, Adams found himself drawn to Yosemite and to other natural settings. Over time his love of photography became more influential than that of music. Contrary to the popular belief of the time, he believed photography to be an art form and often exhibited it as art. Due to his love of nature, Adams became devoted to the conservation of and access to wilderness. He believed that the American people needed to experience nature in all its glory. Adams felt that the experience of nature was a spiritual one, a view evidenced by many of his photographs.

Question 32: The word “destiny” in paragraph 2 is closest in meaning to _______.         

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

These days, photography is considered an art form. However, people did not always feel this way. It took one of the greatest photographers of all time to change public opinion about photography: Ansel Adams. Ansel Adams claimed that he knew his destiny when he first visited Yosemite, a national park, at the age of fourteen. Until then, the focus of his life had always been music; he had long dreamed of being a concert pianist, a career that would have required him to live an urban lifestyle. Instead, Adams found himself drawn to Yosemite and to other natural settings. Over time his love of photography became more influential than that of music. Contrary to the popular belief of the time, he believed photography to be an art form and often exhibited it as art. Due to his love of nature, Adams became devoted to the conservation of and access to wilderness. He believed that the American people needed to experience nature in all its glory. Adams felt that the experience of nature was a spiritual one, a view evidenced by many of his photographs.

Question 33: According to the passage, photography has come to be recognized as an art form since _______.         

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

These days, photography is considered an art form. However, people did not always feel this way. It took one of the greatest photographers of all time to change public opinion about photography: Ansel Adams. Ansel Adams claimed that he knew his destiny when he first visited Yosemite, a national park, at the age of fourteen. Until then, the focus of his life had always been music; he had long dreamed of being a concert pianist, a career that would have required him to live an urban lifestyle. Instead, Adams found himself drawn to Yosemite and to other natural settings. Over time his love of photography became more influential than that of music. Contrary to the popular belief of the time, he believed photography to be an art form and often exhibited it as art. Due to his love of nature, Adams became devoted to the conservation of and access to wilderness. He believed that the American people needed to experience nature in all its glory. Adams felt that the experience of nature was a spiritual one, a view evidenced by many of his photographs.

Question 29: What is this passage primarily about?         

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

These days, photography is considered an art form. However, people did not always feel this way. It took one of the greatest photographers of all time to change public opinion about photography: Ansel Adams. Ansel Adams claimed that he knew his destiny when he first visited Yosemite, a national park, at the age of fourteen. Until then, the focus of his life had always been music; he had long dreamed of being a concert pianist, a career that would have required him to live an urban lifestyle. Instead, Adams found himself drawn to Yosemite and to other natural settings. Over time his love of photography became more influential than that of music. Contrary to the popular belief of the time, he believed photography to be an art form and often exhibited it as art. Due to his love of nature, Adams became devoted to the conservation of and access to wilderness. He believed that the American people needed to experience nature in all its glory. Adams felt that the experience of nature was a spiritual one, a view evidenced by many of his photographs.

Question 34: The word "it" in paragraph 2 refers to _______.         

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

These days, photography is considered an art form. However, people did not always feel this way. It took one of the greatest photographers of all time to change public opinion about photography: Ansel Adams. Ansel Adams claimed that he knew his destiny when he first visited Yosemite, a national park, at the age of fourteen. Until then, the focus of his life had always been music; he had long dreamed of being a concert pianist, a career that would have required him to live an urban lifestyle. Instead, Adams found himself drawn to Yosemite and to other natural settings. Over time his love of photography became more influential than that of music. Contrary to the popular belief of the time, he believed photography to be an art form and often exhibited it as art. Due to his love of nature, Adams became devoted to the conservation of and access to wilderness. He believed that the American people needed to experience nature in all its glory. Adams felt that the experience of nature was a spiritual one, a view evidenced by many of his photographs.

Question 35: According to the passage, all of the following are true of Adams EXCEPT that _______.         

Question 36: Approximately how much of the Earth’s atmosphere is nitrogen?        

As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers ( 93 million miles), Earth is the third planet from the Sun and the fifth largest planet in the solar system. Our planet’s rapid spin and molten nickel-iron core give rise to an extensive magnetic field which, coupled the atmosphere, shields us from nearly all of the harmful radiation coming from the Sun and other stars. Earth’s atmosphere protects us from meteors as well, most of which burn up in the Earth’s atmosphere before they can strike the surface. The planet active geological processes have left no evidence of the ancient pelting it almost certainly received soon after it formed about 4.6 billion years ago. The Earth has a single natural satellite–the moon.    

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35:

In Part Three of the Speaking Section you work together with a partner. You have to do a single task which usually lasts about 3 minutes. One possible task is “problem solving”, which means you have to look at some visual information and then (31)__ the problem with your partner. You may be shown photos, drawings, diagrams, maps, plans, advertisements or computer graphics and it is (32)__ that you study them carefully. If necessary, check you know exactly what to do by politely asking the examiner to (33)__ the instruction or make them clearer. While you are doing the task, the examiner will probably say very (34)__ and you should ask your partner questions and make suggestions if he or she is not saying much. If either of you have any real difficulties, the examiner may decide to step in and help. Normally, however, you will find plenty to say, which helps the assessor to give you a fair mark. This mark depends on your success in doing the task by (35)__ with your partner, which includes taking turns in giving opinions and replying appropriately, although in the end it may be possible to “agree to disagree”.

Question 32: 

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions:

The changing profile of a city in the United States is apparent in the shifting definitions used by the United States Bureau of the Census. In 1870 the census officially distinguished the nation’s “urban” from its “rural” population for the first time. “Urban population” was defined as persons living in towns of 8,000 inhabitants or more. But after 1900 it meant persons living in incorporated places having 2,500 or more inhabitants.

Then, in 1950 the Census Bureau radically changed its definition of urban to take account of the new vagueness of city boundaries. In addition to persons living in incorporated units of 2,500 or more, the census now included those who lived in unincorporated units of that size, and also all persons living in the densely settled urban fringe, including both incorporated and unincorporated areas located around cities of 50,000 inhabitants or more. Each such unit, conceived as an integrated economic and social unit with a large population nucleus, was named a Standard Metropolitan Statistical Area (SMSA).

Each SMSA would contain at least (a) one central city with 50,000 inhabitants or more or (b) two cities having shared boundaries and constituting, for general economic and social purposes, a single community with a combined population of at least 50,000, the smaller of which must have a population of at least 15,000. Such an area would include the county in which the central city was located, and adjacent counties that were found to be metropolitan in character and economically and socially integrated with the county of the central city.By 1970, about two-thirds of the population of the United States was living in these urbanized areas, and of that figure more than half were living outside the central cities.

While the Census Bureau and the United States government used the term SMSA (by 1969 there were 233 of them), social scientists were also using new terms to describe the elusive, vaguely defined areas reaching out from what used to be simple “towns” and “cities”. A host of terms came into use: “metropolitan regions”, “poly-nucleated population groups”, “conurbations”, “metropolitan clusters”, “megalopolises” and so on.  

Question 31: The word “distinguished” in paragraph 1 is closest in meaning to _______.