19.Don't be afraid of difficulties. Many successful entrepreneurs have faced _______ while starting their business.A. panelsB. bundlesC. manualsD. hurdles

Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank before the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please write down the corresponding letter for each item in the blanks. You may not use any of the words in the bank more than once.A) adequate E) evidence I) natural M) sealedB) admiring F) instant J) potential N) solvesC) contains G) liquid K) released O) substanceD) defending H) modified L) revealingWhen travelling overseas, do you buy water in plastic bottles or take your chances with tap water? Imagine you are wandering about on a Thai island or ______ the ruins of Angkor. It's hot so you grab a bottle of water from a local vendor. It's the safe thing to do, right? The bottle is ______, and the label says "pure water". But maybe what's inside is not so ______. Would you still be drinking it if you knew that more than 90 percent of all bottled water sold around the world ______ microplastics?That's the conclusion of a recently ______ study, which analysed 259 bottles from 11 brands sold in nine countries, ______ an average of 325 plastic particles per litre of water. These microplastics included a ______ commonly known as PET and widely used in the manufacture of clothing and food and ______ containers. The study was conducted at the State University of New York on behalf of Orb Media, a journalism organisation. About a million bottles are bought every minute, not only by thirsty tourists but also by many of the 2.1 billion worldwide who live with unsafe drinking water.Confronted with this ______, several bottled-water manufacturers including Nestle and Coca-Cola undertook their own studies using the same methodology. These studies showed that their water did contain microplastics, but far less than the Orb study suggested. Regardless, the World Health Organisation has launched a review into the ______ health risks of drinking water from plastic bottles.

具体行为目标应做到SMART，对于该缩略词依次描述正确的是（）。specific，measurable，attainable，researchable，timely specifal，measurable，attainable，relevant，timely specifal，measurable，attainable，researchable，timely specific，measurable，attainable，relevant，timely

Passage1Read the choices. Then listen to the passage and choose the best answer to each question you hear.(1) (单选题)1A.Good luck can always result in a new scientific discovery.B.Luck and knowledge together may lead to unexpected inventions or discoveries.C.Luck is ****ntial in making a great scientific invention.D.Knowledge is the only important factor that contributes to a new scientific discovery.(2) (单选题)2.A.ll of the important scientific discoveries are the result of serendipity.B.Serendipity is of no use because science is all about in***ligence and hard work.C.Serendipity can directly generate great scientific inventions.D.Science doesn't rely on serendipity but progress in science cannot do without it.(3) (单选题)3.A.Only with scientific knowledge and skill can serendipity be meaningful.B.Even with scientific knowledge, serendipity can still go unnoticed and unacted upon.C.Luck can help science to progress.D.Luck is instrumental in science.A.In Ningxia in 1955.B.In Nanjing in 1936.C.In Nanliang farm in 1966.D.In China in 1949. 2.Why did he have to work on the farm?E.Because he wrote a special poem at that time.F.Because he loved to do it.G.Because the farmers needed his help.H.Because he wanted to write something about the farm. 3.Which of the following sentences is NOT right?I.He worked as a teacher.J.He worked on the farm for many days.K.His works were very popular.L.A lot of visitors come to visit the West Movie City. 4.Which is the right order (顺序) about his life? a. He founded the West Movie City. b. He passed away.c. He got his good fame again.d. He came to Ningxia alone and worked as a teacher in the village.M.a b c dN.d b c aO.a c d bP.d c a b

Throughout history, gold has been a precious material, eagerly sought and cherished. It was probably the first metal to be mined because it is beautiful and imperishable (which will always exist or cannot wear out), and because beautiful objects can be made from it-even with primitive tools. The amount of gold known to ancient peoples probably totaled not much more than the amount produced each year by the world’’s largest gold mine located in the Witwatersrand district of South Africa. Stores of gold discovered by archaeologists in Greece, Scythia, and Egypt, as well as the gold from Indian treasuries in Mexico and Peru, represented years of patient collection of small quantities from streams and veins (矿脉) , often by slave labor.　　The essential value of gold has always been known, even before gold was used in coinage. It remains the only universally recognized standard of value in international monetary exchange. Most of the world’’s refined gold is absorbed by governments and central banks to provide backing for paper currency. But the amount of gold used in arts and in industry is increasing. In addition to its use for jewelry, decorative finishes, and dentistry, its special properties have led to many applications in modern science and technology. Surface coatings of gold protect earth satellites from heat and corrosion, and certain electrical components and circuits of spacecraft are made of gold when extreme reliability is required.　　Gold was first produced in the United States from the southern Appalachian region, beginning about 1792. These deposits, though rich, were relatively small and were quickly depleted. The discovery of gold at Sutter’’s Mill in California sparked the gold rush of 1849-50. Hundreds of mining camps sprang to life as new deposits were discovered. As a result, the production of gold increased rapidly.　　During World War I and for some years thereafter, annual production declined to about two million ounces. When the price of gold was raised in 1934 to 35 an ounce, production increased rapidly. Shortly after the start of World WarⅡ, gold mines were closed and the government did not permit them to reopen until 1945. Since then the production of gold has not exceeded two million ounces a year.　　The largest producing gold mine in the United States is the Homestake Mine in South Dakota, which yields about 575,000 ounces of gold each year. Other mines scattered throughout various parts of the world produce even larger amounts of this highly prized and eagerly sought yellowish material. According to the text, which of the following is true A． Surface coatings of gold protect earth satellites from radiation.B． Most of the world’’s refined gold is used for currency backing.C． The world’’s largest gold mine is located in South Dakota.D． The mining of gold can be traced back to the feudal age.

4.不(移)动的;静止的A. stationeryB. sustainableC. stationaryD. suspicious

G Label each sentence as C (correct), D (un-on), or C (omma splie). Then, on a separate sheet of paper, correct the incorrect sentences.____1. Two emails from Jane came on Monday a third one came on Wednesday.____2. An encyclopedia is a valuable source of information it contains summaries of every area of knowledge.____3. Because of the rapid expansion of human knowledge, it is difficult to keep printed encyclopedias current.____4. A printed encyclopedia may quickly go out of date also it is quite expensive to purchase.____5. Online encyclopedias are available to everyone with access to the Internet.____6. Articles in most encyclopedias are written by experts in each subject, who are often university professors.____7. An editor of an encyclopedia does not write articles he or she only collects and edits articles.____8. To find a book on a certain subject, you used to look in a card catalog, to find a magazine article on a subject, you used to look in a periodical index.____9. If you cannot find any information on a subject, you can always ask a librarian to help you, they are paid to assist students.

This year the global market size for AI was valued at just under 40 billion, with an estimated growth rate of around 42 percent in the next few years. This is partly because of increased automation in industries such as retailing, manufacturing, and health care.Currently, advertising and media account for over 20 percent of the global revenue from AI. However, in the coming years a shift is anticipated with the health-care sector gaining the leading position by 2027. Robot-assisted surgery, automated image diagnosis, and virtual nursing assistants will all contribute to this.The health-care sector is likely to gain the leading position in terms of AI revenue in the near future.A True.B False.

Patients have been saying it for years Hospital food-|||-is poorly prepared and totally lacking in flavor.Now a-|||-distinguished nutitionist养学家)adds a more-|||-serious complaint. Dr.Charles E.Butterworth Jr-|||-director of the nutrition program at the University of-|||-Alabama in Birmingham and chairman of the A.M A.`s-|||-Council on Foods and Nutrition,charges that hospital-|||-