Read the following passage and choose the letter A, B, C or D to indicate the correct answer to each of the questions from 55 to 64.

A number of factors related to the voice reveal the personality of the speaker. The first is the broad area of communication, which includes imparting information by use of language, communicating with a group or an individual and specialized communication through performance. A person conveys thoughts and ideas through choice of words, by a tone of voice that is pleasant or unpleasant, gentle or harsh, by the rhythm that is inherent within the language itself, and by speech rhythms that are flowing and regular or uneven and hesitant, and finally, by the pitch and melody of the utterance. When speaking before a group, a person's tone may indicate uncertainty or fright, confidence or calm. At interpersonal levels, the tone may reflect ideas and feelings over and above the words chosen, or may believe them. Here the participant’s tone can consciously or unconsciously reflect intuitive sympathy or antipathy, lack of concern or interest, fatigue, anxiety, enthusiasm or excitement, all of which are .usually discernible by the acute listener. Public performance is a manner of communication that is highly specialized with its own techniques for obtaining effects by voice and /or gesture. The motivation derived from the text, and in the case of singing, the music, in combination with the performer's skills, personality, and ability to create empathy will determine the success of artistic, political, or pedagogic communication.

Second, the voice gives psychological clues to a person's self-image, perception of others, and emotional health. Self-image can be indicated by a tone of voice that is confident, pretentious, shy, aggressive, outgoing, or exuberant, to name only a few personality traits. Also the sound may give a clue to the facade or mask of that person, for example, a shy person hiding behind an overconfident front. How a speaker perceives the listener's receptiveness, interest, or sympathy in any given conversation can drastically alter the tone of presentation, by encouraging or discouraging the speaker. Emotional health is evidenced in the voice by free and melodic sounds of the happy, by constricted and harsh sound of the angry, and by dull and lethargic qualities of the depressed.

The word drastically in line 21 is closest in meaning to ______.

A. severely

B. exactly

C. frequently

D. easily

Read the followingpassage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer for each of the question.

It is estimated that over 99 percent of all species that ever existed have become extinct. What causes extinction? When a species is no longer adapted to a change environment, _it may perish. The exact causes of a species’ death vary from situation to situation. Rapid ecological change may render an environment hostile to a species. For example, temperatures may change and a species may not be adapt. Food resources may be affected by environmental changes, which will then cause problems for a species requiring these resources. Other species may become better adapted to an environment, resulting in competition and, ultimately,    in the death of a species.

The fossil record reveals that extinction has occurred throughout the history of Earth. Recent analyses have also revealed that on some occasions many species became extinct at the same time - a mass extinction. One of the best - known examples of mass extinction occurred 65 million years ago with the demise of dinosaurs and many other forms of life. Perhaps the largest mass extinction was the one that occurred 225 million years ago, when approximately 95 percent of all species died. Mass extinctions can be caused by a relatively rapid change in the environment and can be worsened by the close interrelationship of many species. If, for example, something were to happen to destroy much of the plankton in the oceans, then the oxygen content of Earth would drop, affection even organisms not living in the oceans. Such a change would probably lead to a mass extinction.

One interesting, and controversial, finding is that extinctions during the past 250 million years have tended to be more intense every 26 million years. The periodic extinction might be due to intersection of the earth’s orbit with a cloud of comets, but this theory is purely speculative. Some researchers have also speculated that extinction may often be random. That is, certain species may be eliminated and others may survive for no particular reason. A species’ survival may have nothing to do with its ability or inability to adapt. If so, some of revolutionary history may reflect a sequence of essentially random events.

 The word “ultimately” in line 7 is closest meaning to

A. exceptionally

B. dramatically

C. eventually

D. unfortunately

Read the followingpassage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer for each of the blanks.

Owning a pet

The joys and tribulations of being a pet owner! During our lifetime most of us have some experience of either owning a pet or being in (35)___________contact with someone who does. Is there such a things as “the ideal pet”? If so what characterizes the ideal pet? Various (36)___________influence one’s choice of pet, from your reasons for getting a pet to your lifestyle. For example, although quite a few pets are relatively cheap to buy, the cost of (37)___________can be considerable. Everything must be (38)___________into account, from food and bedding, to vaccinations and veterinary bills. You must be prepared to (39)___________time on your pet, which involves shopping for it, cleaning and feeling it. Pets can be demanding and a big responsibility.   Are you prepared to exercise and      (40)___________an animal or do you prefer a more independent pet?     How much spare      room do you have? Is it right to lock an energetic animal into a (41)___________space? Do you live near a busy road which may threaten the life of your pet? Pets (42)___________as turtles and goldflsh can be cheap and convenient, but if you prefer affectionate pets, a friendly cat or dog would be more (43)___________. People get pets for a number of reasons, for company, security or to teach responsibility to children. Pets can be affectionate and loyal and an excellent source of company as long as you know what pet (44)___________you and your lifestyle.

Điền vào số 42

A. so

B.for

C.much

D. such

Cho các chất sau: Axit fomic, metylfomat, axit axetic, glucozơ, tinh bột, xenlulozơ, anđehit axetic. Số chất có phản ứng với dung dịch AgNO₃/NH₃ cho ra Ag là

A. 4

B. 2

C. 3

D. 5

Choose the best option A, B, C or D to complete each of the sentences from 21 to 39.

The firemen did well ______ their preparation for catastrophic gas explosions.

A. although

B. because

C. despite

D. because of