The instructions in the manual were very ______，leaving no room for confusion or mistakes.（ ）A. explicitB. visualC. implicitD. valuable

Questions 12 to 15 are based on the conversation you have just heard. 　 A．They are overweight for their age 　 B．They are respectful to their parents 　　C．They are still in their early twenties 　 D．They dislike doing physical exercise.

You can buy maps at __ railway station. They all have them.A. allB. everyC. anyD. each

Passage OneDirectionsIn this section, there is passage with ten blanks. You are required to select one word foreach blank from a list of choices given in a word bank following the passage. Read thepassage through carefully before making your choices. You may not use any of the words inthe bank more than once.Children do not think the way adults do. For most of the first year of life, if something isout of sight, it is out of mind. If you cover a baby's _1_ toy with a piece of cloth, thebaby thinks the toy has disappeared and stops looking for it. A four-year-old may _2_that a sister has more fruit juice when it is only the shapes of the glasses that differ, not the_3_ of juice.Yet children are smart in their own way. Like good little scientists, children are always testingtheir child-sized _4_ about how things work. When your child throws her spoon on thefloor for the sixth time as you try to feed her, and you say,“That's enough! I will not pickup your spoon again!”the child will _5_ test your claim. Are you serious? Are youangry? What will happen if she throws the spoon again? She is not doing this to drive you_6_; rather, she is learning that her desires and yours can differ, and that sometimes those_7_ are important and sometimes they are not.How and why does children's thinking change? In the 1920s, Swiss psychologist Jean Piagetproposed that children's cognitive abilities unfold _8_, like the blooming of a flower,almost independent of what else is _9_ in their lives. Although many of his specificconclusions have been _10_ or modified over the years, his ideas inspired thousands ofstudies by investigators all over the world.A) advocate B) amount C) confirmed D) crazy E) definiteF) differences G) favorite H) happening I) immediately J) naturallyK) obtaining L) primarily M) protest N) rejected O) theories

Computers are getting better at writing their own code but software engineers may not need to worry about losing their jobs just yet.DeepMind, a U.K. artificial intelligence lab acquired by Google in 2014, announced Wednesday that it has created a piece of software called AlphaCode that can code just as well as an average human programmer. The London-headquartered firm tested AlphaCode’s abilities in a coding competition on Codeforces — a platform that allows human coders to compete against one another. “AlphaCode placed at about the level of the median competitor, marking the first time an AI code generation system has reached a competitive level of performance in programming competitions,” the DeepMind team behind the tool said in a blogpost.But computer scientist Dzmitry Bahdanau wrote on Twitter that human-level coding is “still light years away.” “The system ranks behind 54.3% participants,” he said, adding that many of the participants are high school or college students who are just learning their problem-solving skills. Bahdanau said most people reading his tweet could “easily train to outperform AlphaCode.”Researchers have been trying to teach computers to write code for decades but the concept has yet to go mainstream, partly because the AI tools that are meant to write new code have not been versatile enough.An AI research scientist, who preferred to remain anonymous as they were not authorized to talk publicly on the subject, told CNBC that AlphaCode is an impressive technical achievement, but a careful analysis is required of the sort of coding tasks it does well on, versus the ones it doesn’t.The scientist said they believe AI coding tools like AlphaCode will likely change the nature of software engineering roles somewhat as they mature, but the complexity of human roles means machines won’t be able to do the jobs in their entirety for some time.“You should think of it as something that could be an assistant to a programmer in the way that a calculator might once have helped an accountant,” Gary Marcus, an AI professor at New York University, told CNBC. “It’s not one-stop shopping that would replace an actual human programmer. We are decades away from that.”DeepMind is far from the only tech company developing AI tools that can write their own code.Last June, Microsoft announced an AI system that can recommend code for software developers to use as they work. The system, called GitHub Copilot, draws on source code uploaded to code-sharing service GitHub, which Microsoft acquired in 2018, as well as other websites. Microsoft and GitHub developed it with help from OpenAI, an AI research start-up that Microsoft backed in 2019. The GitHub Copilot relies on a large volume of code in many programming languages and vast Azure cloud computing power.Nat Friedman, CEO of GitHub, describes GitHub Copilot as a virtual version of what software creators call a pair programmer — that’s when two developers work side-by-side collaboratively on the same project. The tool looks at existing code and comments in the current file, and it offers up one or more lines to add. As programmers accept or reject suggestions, the model learns and becomes more sophisticated over time. The software makes coding faster, Friedman told CNBC. Hundreds of developers at GitHub have been using the Copilot feature all day while coding, and the majority of them are accepting suggestions and not turning the feature off, Friedman said.In a separate research paper published on Friday, DeepMind said it had tested its software against OpenAI’s technology and it had performed similarly. Samim Winiger, an AI researcher in Berlin, told CNBC that every good computer programmer knows that it is essentially impossible to create “perfect code.”“All programs are flawed and will eventually fail in unforeseeable ways, due to hacks, bugs or complexity,” he said.“Hence, computer programming in most critical contexts is fundamentally about building ‘fail safe’ systems that are ‘accountable’.”In 1979, IBM said “computers can never be held accountable” and “therefore a computer must never make a management decision.”Winiger said the question of the accountability of code has been largely ignored despite the hype around AI coders outperforming humans.“Do we really want hyper-complex, intransparent, non-introspectable, autonomous systems that are essentially incomprehensible to most and uncountable to all to run our critical infrastructure?” he asked, pointing to the finance system, food supply chain, nuclear power plants and weapons systems.【小题1】What do we learn about AlphaCode?A．a U.K. artificial intelligence lab acquired by GitHub created it.B．AlphaCode will likely change the nature of software engineering roles somewhat now.C．It’s a one-stop shopping that would replace an actual human programmer.D．It’s a piece of software that can code just as well as a plain human programmer.【小题2】What is the main point of IBM’s view in 1979 according to this passage?A．The question of the accountability of code should be largely ignored.B．A computer must never make a management decision because they can never be held accountable.C．We would let systems that are essentially incomprehensible to most to run our critical infrastructure.D．All programs are flawed and will eventually fail in unforeseeable ways.【小题3】According to the passage, GitHub Copilot couldn’t ________.A．accept or reject suggestionsB．look at existing code in the current fileC．offer up one or more lines to addD．make coding faster【小题4】Which of the following can be the best title for the text?A．Engineers may need to worry about losing their jobs.B．Machines are getting better at writing their own code but human-level is ‘light years away’.C．AlphaCode is an impressive technical achievement.D．Microsoft announced an AI system that can recommend code for software developers.

At the top of the A-frames there is a strong cast iron frame called （）.A. cylinder linerB. cylinder coverC. the gear boxD. the scavenging box

17【阅读理解】Read the following passage. Fill in each blank with no more than three words.(用不超过三个单词填 空) How to win at interviews Do you always feel nervous before interviews? Are you tired of being unsuccessful? Take our three-week online course and get ready to make a great impression at your next interview! This course covers everything you will need to succeed at interviews. First of all, you'll learn about how to prepare well and how to go about researching your company and position. The course also looks at how to deal with challenging questions and how to present your experience in the best possible way. The instructors on this course have years of experience in interviewing and teaching candidates how to perform well at interview. Charles Lambert is the author of the international best-selling book Interview Success Made Easy and Sue Kay teaches Business Studies at Cardiff University. Mr Lambert and Ms Kay teach this online course through a series of interesting articles, videos and live online events. Feedback on previous course has been very positive with 95%of participants saying that they have felt more confident about interviews after taking part in the course. One participant comments:"This course is really interesting and so well-taught.I had a job interview yesterday and am delighted to say I got the job. Before taking this course,I don't think this would be possible." All course participants will receive a certificate on completing the course. For more information, please visit www. winningatinterviews. com. (10.0分) (1)[填空题] This online course teaches people how to do 1._. The course covers 2._ for interviews and also how to do well during interviews. Both of 3._ this course have lots of experience in teaching people how to do well at interviews. Participants on the course say they feel 4._ interviews after taking part in the course.

Translate the following passage into English, using the words and phrases in the box below. boundary current established generous landscape mobile roam urban be packed with slip into take up space/room 长期以来一直是中国城市景观重要组成部分的菜市场正面临挑战：虽然年纪大的人似乎永远不会厌倦在挤 满摊位的开放式市场上兜来逛去,但这一代的年轻人宁可选择外卖食品或用手机购买副食品,也不愿踏入已经 失惨(disrepair)的莱市场。地方政府意识到保护桨市场这一文化遗产的重要性，开始行动起来，他们投入大量 资金更换旧设备,提升菜市场对年轻消费者的吸引力。既有的菜市场本身也在进行调整。出售预先切好的、可在 家中快速烹饪的半成品菜肴的摊位开始占据空间。一些菜市场试图加强其社交(social networking)功能，建起 花店、面包店(bakery)、书店和老年中心，模糊了购买食物之处和共享社区空间之间的界限。

Organic food has more of the antioxidant (抗氧化剂) compounds linked to better health than regular food, according to the most comprehensive scientific analysis to date. The international team behind the work, led by a professor at Newcastle University, concludes that there are “statistically significant, meaningful” differences, with a range of antioxidants being “substantially higher” in organic food. The increased levels of antioxidants are equivalent to “one to two of the five portions of fruits and vegetables recommended to be consumed daily” and would therefore be significant and meaningful in terms of human nutrition. It is the first study to demonstrate clear and wide-ranging differences between organic and conventional fruits, vegetables and cereals.The Newcastle University’s research, published in the British Journal of Nutrition, is based on an analysis of 343 peer-reviewed studies from around the world – more than ever before – which examine differences between organic and conventional fruits, vegetables and cereals. The researchers conclude that many antioxidants have previously been linked to a reduced risk of chronic diseases such as cardiovascular diseases and certain cancers. But they also note that no long-term studies showing health benefits from a broad organic diet have yet been conducted.The findings will bring to the boil a long-simmering (酝酿) debate over whether those differences in antioxidant levels mean organic food is better for people. A professor of nutrition at King’s College London, said, “The question is whether they are within natural variation, or whether they are nutritionally relevant.”What does the research discussed in this passage conclude?A. Organic food contains higher levels of antioxidants than regular food.B. The amount of protein in organic food is similar to that in regular food.C. Antioxidants bear no direct links to a reduced risk of most cancers.D. Organic food provides twice as much nutrition as in regular food.

22.(翻译作业，10.0分)请将下面的内容翻译成英语作为二十四节气之首，立春标志着春季的开始，代表寒冷的冬日已经过去，天气逐渐回暖，日照时间越来越长。对于农民而言，立春意味着春耕播种的开始。早在3,000年前，中国人就有了在立春这一天举行特殊仪式的习俗。到了清朝，迎春已经成为一项重要的民间活动。在中国的许多地方，人们会在立春这天吃春饼、春卷或咬口胡萝卜，俗称“咬春”(Biting the Spring)。