adj.无意的；非故意的；偶然的A. unparalleledB. unintentionalC. uninjuredD. upgrade

adj.高雅的,优雅的;讲究的;简炼的;简洁的A. eleganceB. embarrassmentC. exceedinglyD. elegant

Translate the following sentences into English, using the words or phrases in the bracket.1. 然而，也有一些人不服从团队行为标准。(conform to)2. 在此我想提出三点建议以解决交通拥堵问题。(put forward)3. 跟世界上很多国家一样，中国人也很重视这一天。(place importance on)4. 我想花点时间斟酌斟酌再作决定。(consider)5. 我们这个职位的申请者有很多都不错，但是其中一个人格外出众。(stand out)

adj.可医治的;可治愈的A. committeeB. caretakerC. choreD. curable

The Later Stone Age technology was thought to have made its first appearance in South Africa much later than it did in Europe. A new analysis of South African finds suggests modern culture emerged in both areas at the same time. In Europe, the Later Stone Age is commonly dated to around 45,000 years ago. In South Africa there is archeological (考古学的) evidence suggesting the Later Stone Age did not begin until much later – around 22,000 years ago.Perhaps no longer, though. Paola Villa of the University of Colorado Museum of Natural History in Boulder, and her colleagues, have explored deep into the layers of Border Cave in South Africa, and found that Middle Stone Age tool-making techniques were giving way to Later Stone Age technology by 44,000 years ago. For instance, stone spear points – a mark of Middle Stone Age technology – were replaced by bows and bone arrows. A companion paper, headed by Francesco d’Errico of the University of Bordeaux, France, found organic evidence that pointed to a similar date, probably representing the beginning of the modern-day hunter-gatherer society in South Africa.The Border Cave evidence also shows a striking trend of internal evolution. Though Later Stone Age technologies could theoretically have spread rapidly to the north and south from a source in East Africa, Villa’s evidence suggests otherwise. The South African finds suggest a gradual shift into the Later Stone Age, while retaining a few elements from earlier times in the form of notched (刻V字形切口的) bones, bone awls (锥子) and marine shell beads (珠子). That points to the South African populations evolving many of their later tools independently. “To prove internal evolution, you need a place like Border Cave that has a long sequence, many layers, is well dated, and all use the same materials to make artefacts (人工制品),”says Villa.1. Which of the following is true about Later Stone Age according to the passage?A) It appeared in South Africa much later than it did in Europe.B) It appeared approximately the same time in both South Africa and Europe. C) It appeared 22,000 years later in Europe than that in South Africa.D) It did not begin in South Africa 22,000 years ago as it did in Europe.2. Which of the following is a symbol of Middle Stone Age technology?A) Bows and bone arrows.B) Caves.C) Hunting techniques.D) Stone spear points. 3. Which of the following is true regarding the study of Francesco d’Errico according to the passage?A) It examined the layers of Border Cave in South Africa.B) It provided further evidence for the conclusion made by Paola Villa. C) It revealed the differences between Middle Stone Age technology and Later Stone Age technology.D) It suggested that the modern-day hunter-gatherer society in South Africa appeared earlier than it did in Europe.4. What does the evidence of the Border Cave suggest?A) South Africa did not shift rapidly from earlier times into the Later Stone Age. B) Later Stone Age technologies had spread quickly to other areas from the source.C) The South African populations were reluctant to evolve their tools with the help of Later Stone Age technology.D) The Border Cave was a perfect place to retain a few elements from earlier times.5. Which of the following could be the best title for this passage?A) Later Stone Age got earlier start in South Africa than thought. B) The Border Cave, a perfect place for internal evolution.C) Later Stone Age technology in Europe and South Africa.D) The Border Cave, a source of Later Stone Age technologies.

What is one of the traps entrepeneurs may often fall into when competing with rivals?A. They may adopt strategies that arebound to ruin their venture.B. They may resort to unethical meansto outperform their rivals.C. They may be too eager to succeedwhile ignoring the huge labor cost.D. They may be intently focused on winning at the current market level.

My research focus is on what happens to our immune system as we age. So the job of the immune system is to fight infections. It also protects us from viruses and from autoimmune diseases. We know that as we get older, it’s easier for us to get infections. So older adults have more chances of falling ill. This is evidence that our immune system really doesn’t function so well when we age. In most of our work, when we’re looking at older adults who’ve got an illness, we always have to have health controls. So we work very closely with a great group of volunteers called the One Thousand Elders. These volunteers are all 65 or over, but in good health. They come to the university to provide us with blood samples to be interviewed and to help us carry out a whole range of research. The real impact of our research is going to be on health in old age. At the moment, we are living much longer. Life expectancy is increasing at 2 years for every decade. That means an extra 5 hours a day. I want to make sure that older adults are still able to enjoy their old age, and that they are not spending time in hospital with infections, feeling unwell and being generally weak. We want people to be healthy even when they are old.1.What is the focus of the speaker's research?A) The function of the human immune system.B) The cause of various auto-immune diseases.C) The viruses that may infect the human immune system.D) The change in people’s immune system as they get older.2.What are the volunteers asked to do in the research?A) Report their illnesses.B) Offer blood samples.C) Act as research assistants.D) Help to interview patients.3.What does the speaker say will be the impact of his research?A) Strengthening people’s immunity to infection.B) Better understanding patients’ immune system.C) Helping improve old people’s health conditions.D) Further reducing old patients’ medical expenses.

Please select one word for each blank from a list of choices given in a word bank following the passage.Albert Einstein was more than just curious though. He had the patience and___1___that kept him at things longer than most others. Other children would build houses of cards up to 4 stories tall before the cards would lose___2___and the whole structure would come falling down. Maja___3___in wonder as her brother Albert___4___built his card buildings to 14 stories. Later he would say, “It’s not that I’m so smart, it’s just that I stay with problems longer.”One___5___Albert Einstein’s developing mind enjoyed was the opportunity to communicate with adults in an___6___way. His uncle, an engineer, would come to the house, and Albert would join in the discussions. His thinking was also___7___by a medical student who came over once a week for dinner and lively chats.At age 12, Albert Einstein came upon a set of ideas that___8___him as “holy”. It was a little book on Euclidean plane geometry. The concept that one could prove theorems of angles and lines that were in no way obvious made an “indescribable ___9___” on the young student. He adopted mathematics as the tool he would use to pursue his___10___and prove what he would discover about the behavior of the universe.A. evidentB. apparentlyC. determinationD. curiosityE. intellectualF. methodicallyG. descriptionH. impressedI. convincedJ. advantageK. essenceL. impressionM. watchedN. stimulatedO. balance

n.必然;确实;确实的事情A. cordlessB. consciousnessC. certaintyD. complicate

n.电梯；升降机；升降舵；起卸机A. equityB. extendC. editorialD. elevator

热门问题