Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questionsJust as the performance ended, all the concertgoers raised to their feet and applauded. A.Just as B.endedC.raised D.their feet
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 38 to 45. Oxford University scientists have launched an attempt to bring the Northern White Rhinoceros back from beyond the “point of no return” using IVF (In Vitro Fertilization). The team believes a pioneering treatment can prompt a revival of the persecuted species, despite the death last year of the last known male and the fact that the two remaining females, Najin and Fatu, cannot have calves. One of two subspecies of White Rhinoceros, the Northern Rhinoceros once ranged over tracts of Uganda, Sudan, Central African Republic and the Democratic Republic of Congo. However, the value of its horns saw it poached from a population of approximately 500 to 15 in the 1970s and 1980s. A small recovery - numbers reached 32 - from the early 1990s was then reversed from 2003 when illegal hunting intensified again. The Oxford researchers believe that it will be possible to remove ovarian tissue from the animals and stimulate it to produce eggs, which would then be fertilised from sperm preserved from male Northern White Rhinoceros. The embryos would then be implanted into a surrogate mother of a similar species, probably a Southern White Rhinoceros. The technique has been used successfully in mice for nearly two decades; it has also been accomplished for some species of dog, horse and cat. However, it has never been attempted before on a rhinoceros, meaning the Oxford team plan to perfect it first by conducting a series of trials on ovarian tissue taken from a Southern White Rhinoceros. In principle, the benefit of removing ovarian tissue for use in the lab is that it can go on producing eggs. Other researchers are exploring the possibility of using the remaining Northern White Rhinoceros sperm to cross-breed with Southern White Rhinoceros, however, Dr Williams believes the focus should be on preserving the identity of the northern species. “This will be a huge buffer against disease and ill-health in the long-term, and give the new herds better genetic ability to adapt to changing environments in the future.” Najin was born in captivity in 1989 and Fatu in 2000. They both belong to the Cvur Kralove Zoo in the Czech Republic, which shipped them to the Ol Pejeta Conservancy in Kenya in 2009 amid tight security. In place of their horns, keepers have fitted radio transmitters to allow close monitoring of their whereabouts in the large paddock areas. The team has enough funding for three years’ research, donated from Foundation Hoffman, however, Oxford University has launched a public appeal to raise the money to secure the project long term.Which of the following statement is TRUE according to the passage?A.Oxford University can afford a three-year project without being sponsored by any foundation.B.Najin and Fatu are the last known female rhinos which can have calves naturally.C.Researchers can find out the position of Najin and Fatu if they want.D.The technique that Oxford University scientists use to breed rhinos has never been successful before.
The situations are very disappointing because almost all the rivers and lakes, even seas are contaminated. A. clean with waterB. short of waterC. full of waterD.very dirty
Choose one word whose stress pattern is different from the othersA.impoliteB.valuableC.comfortableD.countrymen
Read the passage and choose the best answer to each question.A new study shows that women can reduce their chances of developing heart disease by jogging for about three hours every week. The researchers at Harvard University Medical in Boston have just reported the results of the study on the New England Journal of Medicine. The study is the first to show the effectiveness of jogging in the developing of heart disease in women. Only a few earlier studies have examined the effects of jogging on the heart, but nearly all have been done on men. The new study involves more than 72,000 women between the ages of forty and sixty-five during a period of eight years. The researchers have found that women who jog at least three hours a week have a thirty to forty percent lower chance of suffering a heart attack than those who do not.Most of the early studies have been done on __________.A.babies B.children C.women D.men
Identify the underlined part among A, B, C or D that needs correcting.I’m very hungry (A) and thirsty (B) now. I could ate a horse (C) and drink (D) an ocean.A.hungry B.thirstyC.ate a horse D.drink
"What shall we do this evening?" - "_____ "A.How about doing it now?B.Why not do it now?C.Let's go out to the zoo.D.I'll go out for dinner.
Choose A, B, C or D that best fits each numbered blank in the following passage.There are a number of things I like to do in my free time. They are my hobbies.The hobby I like most is (21) __________my guitar. My uncle, (22) _____________is an accomplished guitarist, taught me how to play. Now I can (23) _____________ a few simple tunes. I have even begun to sing while playing the guitar, but I have not been very successful (24)_______ this. My uncle tells me that all I need is to practise regularly and I should be able to do it. He is very good at (25) _________ people singing with his guitar and I admire him very much.(23) A.plays B.play C.played D.be played
Mark the letter A, B, C, or D to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions. The Great Pyramid of Giza is one of the famous man-made wonders of the world.A.artificial B.natural C.modern D.eternal
Choose the best answer among A, B, C or D.Exposure to pollution can cause many serious illnesses ________ to death.A.that leading B.which led C.led D.leading
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