Could you a moment while I see if Peter is in his office A. get on well (Miễn phí)

C. hold on

Đáp án chủ yếu xác

Markthe letter A, B,C or D lớn indicate the correct answer lớn each of the following questions.

Question 18: Nowadays, most students use _______ calculators in their studies and examinations.

A. electrical

B. electric

C. electrified

D. electronic

Markthe letter A, B,C or D lớn indicate the correct answer lớn each of the following questions.

Question 15: In future, cars will still be _________ us, but, instead of petrol, they will run ________anything from electricity lớn methane gas.

A. for/ by

B. for/ on

C. with/ by

D. with/ on

Mark the letter A, B, C or D lớn indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following questions.

Question 24: A frightening number of illiterate students are graduating from college.

A. inflexible

B. able lớn read and write

C. able lớn enjoy winter sports

D. unable to pass an examination in reading and writing

Markthe letter A, B,C or D lớn indicate the correct answer lớn each of the following questions.

Question 19: Lan: "She seems ______ for the job". - Hoa: "Yes. Everybody thinks she's perfectly suited for it."

A. ready-made

B. home-made

C. tailor-made

D. self-made

Read the following passage and mark the letter A, B, C or D lớn indicate the correct answer lớn each of the questions from 43 lớn 50.

The need for a surgical operation, especially an emergency operation, almost always comes as a severe shock lớn the patient and his family. Despite modern advances, most people still have an irrational fear of hospitals, and anaesthetics. Patients tự not often believe they really need surgery - cutting into a part of the body toàn thân as opposed lớn treatment with drugs.

In the early years of the 20th century there was little specialization in surgery. A good surgeon was capable of performing almost every operation that had been advised up lớn that time. Today the situation is different. Operations are now being carried out that were not even dreamed of fifty years ago. The heart can be safely opened and its valves repaired. Clogged blood vessels can be cleaned out, and broken ones mended or replaced. A lung, the whole stomach, or even part of the brain can be removed and still permit the patient lớn live comfortable and satisfactory life. However, not every surgeon wants lớn, or is qualified lớn carry out every type of modern operation.

The scope of surgery has increased remarkably in the past decades. Its safety has increased too. Deaths from most operations are about 20% of what they were in 1910 and surgery has been extended in many directions, for example lớn certain types of birth defects in new born babies, and, at the other over of the scale, lớn life saving operations for the octogenarian. The hospital stay after surgery has been shortened lớn as little as a week for most major operations. Most patients are out of bed on the day after an operation and may be back at work in two or three weeks.

Many developments in modern surgery are almost incredible. They include replacement of damaged blood vessels with simulated ones made of plastic: the replacement of heart valves with plastic substitutes; the transplanting of tissues such as lens of the eye; the invention of the artificial kidney lớn clean the blood of poisons at regular intervals and the development of heart and lung machines lớn keep patients alive during very long operations. All these things open a hopeful vista for the future of surgery.

One of the most revolutionary areas of modem surgery is that of organ transplants. Until a few decades ago, no person, except an identical twin, was able lớn accept into his body toàn thân the tissues of another person without reacting against them and eventually killing them. Recently, however, it has been discovered that with the use of X-rays and special drugs, it is possible lớn graft tissues from one person lớn another which will survive for periods of a year or more. Kidneys have been successfully transplanted between non-identical twins. Heart and lung transplants have also been reasonably successful.

"Spare parts" surgery, the simple routine replacement of all worn-out organs by new ones, is

still a dream of the future but surgery is ready for such miracles. In the meantime, you can be happy if your doctors say lớn you, "Yes, I think it is possible lớn operate on you for this condition."

Question 47: Today, compared with 1910 ________.

A. 20% fewer of all operation patients die

B. 20% of all operation patients recover

C. operation deaths have increased by 20%

D. five times fewer patients die after being operated on

Read the following passage and mark the letter A, B, C or D lớn indicate the correct answer lớn each of the questions from 36 lớn 42.

Life originated in the early seas less kêu ca a billion years after the Earth was formed. Yet another three billions years were lớn pass before the first plants and animals appeared on the continents. Life's transition from the sea lớn the land was perhaps as much of an evolutionary challenge as was the genesis of life.

What forms of life were able lớn make such a drastic change in lifestyle? The traditional view of the first terrestrial organisms is based on megafossils - relatively large specimens of essential whole plants and animals. Vascular plants, related lớn modern seed plants and ferns, left the first comprehensive megafossil record. Because of this, it has been commonly assumed that the sequence of terrestrialization reflected the evolution of 10 modern terrestrial ecosystems. In this view, primitive vascular plants first colonized the margins of continental waters, followed by animals that fed on the plants, and lastly by the animals that preyed on the plant-eaters. Moreover, the megafossils suggest that terrestrial life appeared and diversified explosively near the boundary between the Silurian and the Devonian periods, a little more kêu ca 400 million years ago.

Recently, however, paleontologists have been taking a closer look at sediments below this Silurian- Devonian geological boundary. It turns out that some fossils can be extracted from these sediments by putting the rock in an acid bath. The technique has uncovered new evidence from sediments that were deposited near the shores of the ancient oceans - plant microfossils and microscopic pieces of small animals. In many instances, the specimens are less kêu ca one-tenth of a millimeter in diameter. Although they were entombed in the rocks for hundreds of millions of years, many of the fossils consist of the organic remains of the organism.

These discovered fossils have not only revealed the existence ofpreviously unknown organisms, but have also pushed back these dates for the invasion of land by multicellular organisms. Our view about the nature of the early plants and animal communities are now being revised. And with those revisions come new speculations about the first terrestrial life-forms.

Question 36: The word "drastic" is closest in meaning lớn ________.

A. widespread

B. radical

C. progressive

D. risky