at risk, but the potential goes even further than that. The technology promises exciting new possibilities for a variety of applications. A solar panel or similar product could be produced in a flat shape onto which functional devices can be easily installed. It could then be changed to a compact shape for packing and shipping. After arriving at its destination, the product could be stimulated to form a different shape that serves its function. Also it could be used to build furniture, bikes, cars and even buildings. As with many of the ideas being put forward, it is easy to go a step too far into the extreme, but this just shows the potential of 4D in comparison to 3D.
The next stage for the research is to move from printing single strands to sheets and eventually whole structures. And water need not be the process’s only energy source. 24. Which of the following displays the fourth dimension of 4D printing?
A. 4D printing creates a new, 3D structure out of certain component. B. 4D technology reduces need for workers to put themselves at risk. C. 4D technology can be used in many more fields than 3D printing. D. 4D printed materials reshape themselves with conditions changing.
25. The major problem concerning the development of 4D printing lies in__________.
A. producing essential 4D printers B. creating proper smart materials C. providing a suitable environment D. promoting practical applications
26. It can be inferred from the last but one paragraph that__________.
A. electricity is used in 4D technology B. 4D printing has been applied in
industry
C. more potential of 4D is to be discovered D. 4D technology will go to extreme
27. What does the passage lead you to believe?
A. 4D printing will take the place of 3D printing in the near future. B. Most aspects of our study life can be affected by 4D printing. C. 4D printing will benefit humans by saving labor somehow.
D. Smart materials can be transformed into other types of material.
C
If you could change your child’s DNA in the future to protect them against diseases, would you? It could be possible because of technology known as CRISPR-Cas,
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or just CRISPR.
CRISPR involves a piece of RNA, a chemical messenger, designed to work on one part of DNA; it also uses an enzyme (酶) that can take unwanted genes out and put new ones in, according to The Economist. There are other ways of editing DNA, but CRISPR will do it very simply, quickly, and exactly.
The uses of CRISPR could mean that cures are developed for everything from Alzheimer’s to cancer to HIV. By allowing doctors to put just the right cancer-killing genes into a patient’s immune system, the technology could help greatly.
In April scientists in China said they had tried using CRISPR to edit the genomes (基因组) of human embryos. Though the embryos would never turn into humans, this was the first time anyone had ever tried to edit DNA from human beings. With this in mind, the US’ National Academy of Sciences plans to discuss questions about CRISPR’s ethics (伦理问题).
For example, CRISPR doesn’t work properly yet. As well as cutting the DNA it is looking for, it often cuts other DNA, too. In addition, we currently seem to have too little understanding of what DNA gives people what qualities.
There are also moral questions around “playing God”. Of course, medicine already stops natural things from happening —— for example, it saves people from infections. The opportunities to treat diseases make it hard to say we shouldn’t keep going.
A harder question is whether it is ever right to edit human germ-line (种系) cells and make changes that are passed on to children. This is banned in 40 countries and restricted in many others. However, CRISPR means that if genes can be edited out, they can also be edited back in. It may be up to us as a society to decide when and where editing the genome is wrong.
Also, according to The Economist, gene editing may mean that parents make choices that are not obviously in the best interests of their children: “Deaf parents may prefer their children to be deaf too; parents might want to make their children more intelligent at all costs.”
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In the end, more research is still needed to see what we can and can’t do with CRISPR. “It’s still a huge mystery how we work,” Craig Mello, a UMass Medical School biologist and Nobel Prize winner, told The Boston Globe. “We’re just trying to figure out this amazingly complicated thing we call life.” 28．What is the article mainly about?
A. What we can and can’t do with CRISPR. B. How CRISPR was developed by scientists.
C. The advantages of CRISPR and arguments about its ethics.
D. Chinese scientists’ experiment of using CRISPR to edit human embryos. 29．According to the article, the technology of CRISPR ________.
A. is very safe because it only cuts the DNA it is looking for B. is banned in 42 countries and restricted in many others C. could cause parents to make unwise choices for their children
D. could help us discover the link between DNA and the qualities it gives people 30．It can be concluded from the article that CRISPR ________.
A. allows scientists to edit genomes for the first time B. could be helpful in the treatment of cancer and HIV C. is a technology that uses an enzyme to work on RNA and DNA
D. has proven to be the most effective way to protect children against diseases 31．What is the author’s attitude toward CRISPR?
A. Supportive. B. Worried.
The 2016 Oscars, the 88 Academy Awards, once again thrilled people around the world, including the Chinese, who were excited about Leonardo DiCaprio winning the Best Actor Award.
But the annual carnival also put Chinese filmmakers in an awkward position, as no Chinese film makers ever pocketed a golden trophy(奖杯). The hard truth leaves people wondering when the nation, which is already the second largest film market, will earn a place in the well-known award ceremony’s spotlight.
There are good reasons to be optimistic about such an ambitious outlook.
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th
C. Negative. D. Objective.
First, China is one of the fastest growing film markets in the world, attracting abundant capital from home and abroad, which will attract more talented people to get into the industry. Latest statistics showed Chinese cinemas took a record of 6.87 billion yuan (about $ 1.05 billion) in ticket sales in February, with the monthly box office overtaking that of North America for the first time.
The achievement, which may be repeated in the future, has led to thinking that China’s annual box office could go on to surpass(超过) North America as soon as 2017. As capital rushes into the Chinese film industry, fierce competition is expected. The creativity and quality of homegrown movies, two outstanding shortcomings compared with Hollywood productions, will be improved.
Second, Chinese culture and stories have provided a rich source of inspiration for domestic(国内的) productions. For example, the most popular animations in China are the Kung Fu Panda series and Monkey King films. Once they master cutting-edge film technology and improve narration(叙述), Chinese film makers could see their potential released. Also showing promise is the younger generation of filmmakers, who are born after 1970. With more professional and international training compared with their predecessors(前辈), such as Zhang Yimou, they are equipped to make breakthroughs.
Young directors, who often travel to the United States and Europe for seminars and award ceremonies, are also more familiar with Hollywood productions. This being said, no one can predict the exact year when a homegrown film will surprise the world greatly. Patience is gold for domestic filmmakers.
32．Why do Chinese filmmakers feel awkward, according to the passage?
A. Because China has never earned any film award in the world.
B. Because Chinese film makers have never won a golden trophy of the Oscar. C. Because Leonardo DiCaprio won the Best Actor award of the Oscar in 2016. D. Because Chinese wonder when China will be the largest film market in the world. 33．In the author’s opinion, what are the reasons for Chinese filmmakers to win an Oscar in the future?
① China can raise capital from home and abroad.
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② The creativity and quality of Chinese movies have been improved.
③ The younger film makers, receiving international training, are more professional.
④ Film makers can find a rich source of inspiration from Chinese culture and stories.
A. ①②③ B. ②③④
C. ①②④ D. ①③④
34．According to the passage, which of the following statements is TRUE?
A. Kung Fu Panda series and Monkey King films are the most popular animations in China now.
B. The record in monthly ticket sales has overtaken that of North America in the past few months.
C. Zhang Yimou, who is familiar with Hollywood production, will win an award at Oscar.
D. A Chinese film is certain to surprise the world greatly in the Oscar of 2017. 35．What is the implied meaning of the underlined sentence, according to the passage?
A. Chinese filmmakers still have a long way to go.
B. Oscar awards can provide gold chances for domestic filmmakers. C. Hollywood is a great place for filmmakers to achieve their dreams. D. It is certain that young directors are in the gold periods of filmmaking.
第二节(共5小题：每小题2分，满分10分)
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Looking back at my younger years, I am sometimes amazed at how life has turned out. 36 The only thing that stays the same is who I am, my values, and my interests. If I could go back in time and hang out with my younger self for a day, here’s what I would tell her.
●Everything happens for a reason.
Without mistakes and failure, you would never have learned. Without pain, you would never have grown. Once you understand this, you will know that everything comes
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