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 question.

  Rachel Carson was bom in 1907 in Springsdale, Pennsylvania. She studied biology in college and zoology at Johns Hopkins University, where she received her master’s degree in 1933. In 1936, she was hired by the US Fish and Wildlife Service, where she worked most of her life.

  Carson’s first book, Under the Sea Wind, was published in 1941. It received excellent reviews, but sales were poor until it was reissued in 1952. In that year, she published The Sea Around Us, which provided a fascinating look beneath the ocean’s surface, emphasizing human history as well as geology and marine biology. Her imagery and language had a poetic quality. Carson consulted no less than 1, 000 printed sources. She had voluminous correspondence and frequent discussions with experts in the field. However, she always realized the limitations of her non-technical readers.

          In 1962, Carson published Silence Spring, a book that sparked considerable controversy. It proved how much harm was done by the uncontrolled, reckless use of insecticides. She detailed how they poison the food supply of animals, kill birds, and contaminate human food. At that time, spokesmen for the chemical industry mounted personal attacks against Carson and issued propaganda to indicate that her findings were flawed. However, her work was vindicated by a 1963 report of the President’s Science Advisory Committee.

Which of the following was not mentioned in the passage as a source of information for The Sea Around Us?

A. Printed matter

B. Talks with experts

C. Letters from scientists

D. A research expedition

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 from 43 to 50.

   Cooperation is the common endeavor of two or more people to perform a task or reach a jointly cherished goal. Like competition and conflict, there are different forms of cooperation, based on group organization and attitudes.

   In the first form, known as primary cooperation, group and individual fuse. The group contains nearly all of each individual’s life. The rewards of the group’s work are shared with each member. There is an interlocking identity of individual, group and task performed. Means and goals become one, for cooperation itself is valued.   

   While primary cooperation is most often characteristic of preliterature societies, secondary cooperation is characteristic of many modem societies. In secondary cooperation, individuals devote only part of their lives to the group. Cooperation itself is not a value. Most members of the group feel loyalty, but the welfare of the group is not the first consideration. Members perform tasks so that they can separately enjoy the fruits of their cooperation in the form of salary, prestige, or power. Business offices and professional athletic teams are examples of secondary cooperation.

   In the third type, called tertiary cooperation or accommodation, latent conflict underlies the shared work. The attitudes of the cooperating parties are purely opportunistic: the organization is loose and fragile. Accommodation involves common means to achieve antagonistic goals: it breaks down when the common means cease to aid each party in reaching its goals. This is not, strictly speaking, cooperation at all, and hence the somewhat contradictory term antagonistic cooperation is sometimes used for this relationship.

What is the author’s main purpose in the first paragraph of the passage?

A. To offer a brief definition of cooperation

B. To explain how cooperation differs from competition and conflict

C. To urge readers to cooperate more often

D. To show the importance of group organization and attitudes

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Mary rarely uses social networks, _______?

A. isn’t she

B. does she

C. doesn’t she

D. is she

Khi đốt nóng hỗn hợp ancol gồm CH₃OH và C₂H₅OH (xúc tác H₂SO₄ đặc, ở 140^oC) thì số ete thu được tối đa là:

A. 1.

B. 3.

C. 4

D. 2.

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 from 35 to 42.

Henry is the undisputed star of Dronfield School near Sheffield. Whatever the achievements of other members of the comprehensive school, it is Henry, with his soulful eyes and glossy hair, who has hogged the limelight, appearing on television in Britain and abroad. Yet despite all the public adulation, Henry stirs up no envy or resentment among the 2000 students – in fact, they all adore him. The dog, who first arrived six months ago, is a super dog, who has improved students' behaviour and encouraged more students to focus on their academic achievement.

Andrew Wainwright, a student at Dronfield School, says there is something magical and calming about being able to interact with Henry during his time at the school's catch-up classes, and that if he falls behind, that opportunity will be denied. Even doubting staff have finally been won round. Perhaps that is because Henry, who lies on the floor during staff meetings, has also had a calming effect on them.

It was Andrew's teacher, Wendy Brown and the school counsellor, Julie Smart, who first proposed buying a school dog. "Julie and I were talking one day about how looking after dogs can positively affect children's conduct," says Brown. "We did some research and discovered that the presence of pets has been shown to be therapeutic. A number of studies have shown that animals improve recovery after surgery or illness and have a calming influence on people in a lot of settings. Some of my kids can be a handful and some of the children Julie counsels have terrible problems."

Could the school dog become a craze? Other schools such as the Mulberry Bush, a primary school for children with behavioural problems, have stepped forward to point out they already have one. Rosie Johnston, a Mulberry staff member has been bringing her golden retriever, Muskoka, into school for three years. Apart from being a calming influence, Muskoka even plays his part in literacy lessons. Children at the school can be too shy to read to adults so they read to Muskoka. "Their anxiety about mispronouncing something or getting the words in the wrong order is reduced when they read to him," says Johnston.

Psychologist Dr Deborah Wells from Queen's University Belfast specialises in animal-human interaction. She believes that the underlying key to the Henry effect is that dogs offer unconditional love and that cheers up adults and children and helps with self-esteem. But traditionalist Chris Woodhead, the former chief inspector of schools says, "I don't see why a teacher cannot create a positive learning environment through the subject they teach and their personality. Dogs strike me as a bit of a publicity stunt. It's the kind of sentimental story journalists love." Despite this sentiment, Henry remains as popular as ever.

The phrase "a handful" in paragraph 3 is probably descriptive of a child who is ______.

A. difficult to control

B. inclined to disagree

C. reluctant to explore

D. impossible to understand

5.

a)carefully

b)well

c)siently

d)beautiful

e)beautifully

f)sweetly

g)happy

h)happily

i)good

j)tired