题目内容

【题目】You might wonder how it________to live without eating for so many months.

A.keeps

B.succeeds

C.manages

D.tries

【答案】C

【解析】AB项后面不能接不定式根据从句意思可知它指的是成功地活下来”,try to设法做某事但不一定成功

练习册系列答案
相关题目

【题目】 Families should reduce exposure to synthetic chemicals found in food colorings, preservatives and packaging materials as a growing body of research shows they may harm children’s health, according to a policy statement and technical report from the American Academy of Pediastrics released online.

The statement also suggests improvements to the food additives regulatory system, including updating the scientific foundation of the U.S. Food and Drug Administrations safety assessment retesting all previously approved chemicals.

Leonard Trasande ,the author of the policy statement, to tell us more about these concerns.

Q: What are the growing number of studies showing us?

A: Over the past two decades, an accumulating body of science suggests some food additives can interfere with a child’s hormones, growth and development.

Potentially harmful effects of food additives are of special concern for children because they are more sensitive to chemical exposures because they eat and drink more relative to body weight, than adults do and are still growing and developing. An early injury to their organ systems can have lifelong and permanent consequences.

Q: What additives does the statement highlight?

A: The additives of most concern, based on rising research evidence cited in the report, include:

Bisphenols, such as BPA, used to harden plastic containers and line metal cans, can act like estrogen(雌激素)in the body which may potentially change the timing of puberty, decrease fertility, increase body fat and affect the nervous and immune systems. BPA is now banned in baby bottles.

Phthalates, which make plastic and vinyl tubes used in industrial food production flexible, may affect male genital development increase childhood obesity and contribute to cardiovascular disease. In 2017, the Consumer Product Safety Commission banned the use or some phthalates in child-care products such as teething rings.

1According to the American Academy of Pediatric’s report, people should ___ to cope with the problem of food additives.

A. try to avoid food additives in daily life and revise relevant rules on food additives

B. update the food safety assessment program and check the approved chemicals again

C. improve the food additives regulatory system and retest all approved chemicals

D. reduce the usage of food additives and establish new food protection system

2Leonardo Trasande holds the view that food additives do more harm to children than adults because study shows ___.

A. children are more sensitive to what they eat and drink than adults

B. children usually eat and drink more unhealthy food than adults

C. children are just too young and weak to protect themselves

D. children’s organs are easier to be damaged and hard to recover

3How many specific kinds of harmful effect caused by the additives are mentioned in the passage?

A. 2B. 7

C. 8D. 3

【题目】请阅读下面有关中国在线外卖现状调查的柱状图及相关文字,并按照要求用 英语写一篇150词左右的文章。

The scale of consumers of fast food delivery service in China

The fast food delivery service, which depends on the already-existing restaurants, can cover a larger place with more customers without taking the seats of restaurants. Under the current economic and market condition, the fast food delivery service has been the new battlefield of the fast food giants in China. Even MacDonald’s and KFC, the two international fast food giants are fighting against each other for more market share in China’s fast food delivery industry.

However, Jing Linbo, Deputy Director of the Institute of Finance and Trade Economics, the Chinese Academy of Social Science, thought that the fast food delivery is the new growth point of fast food enterprises. But the fast food enterprises should have certain comprehensive strengths to do this service, which is thought to be different from the traditional food industry in some aspects.

Besides, with the development of the new industry, there also emerge problems. And some observers have given their warnings. They warn that if the fast food enterprises take no notice of the hidden problems, they will lose the customers in the competitive market gradually.

(写作内容)

1. 用约30个单词概述上述信息的主要内容;

2. 结合上述信息,简要分析外卖盛行的主要原因;

3. 请从消费者角度谈谈你对外卖的看法及建议,用2-3个理由支撑你的观点。

(写作要求)

1. 写作过程中不能直接引用原文语句;

2. 作文中不能出现真实姓名和学校名称;

3. 不必写标题。

(评分标准)

内容完整,语言规范,语篇连贯,词数适当。

_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

【题目】

News anchors(主播) must have been reluctant to read out the following news: Xin Xiaomeng began working as the world’s first female artificial(人工的) intelligence news anchor at Xinhua News Agency on Sunday, three months after a male robot joined the profession.

Unlike previous news robots though, Xin does not read news like a cold machine; she reads it almost like a human being. The muscles on her face stretch and relax-and her reactions change-as she continues reading. That’s why many news anchors were worried: Will AI replace us in the near future?

To find the answer, we have to analyse the technologies that support Xin at her job. Three key technologies are used to support Xin. First, samples of human voices are collected and synthesized (合成). This is followed by the collection and synthesis of human muscle movement samples. And third the voices and movements are married in a way that when the Al news anchor reads, the micro -electric motors behind her face move to make her expressions seem more human.

Yet we need a thorough knowledge of deep leaning technology to make a robot imitate a person’s voice. The developer needs to collect tens of thousands of pieces of pronunciations, input them Into the machine and match them with the text or the Al to lean and read. The process for imitating facial movements is similar. The developer has to analyse the movements of the 53 muscles in the human face, make a model set from the collected data for the AI news anchor to lean, and imitate the movements of facial muscles via programs

Both the technologies used to make Xin’s performance impressive are mature. The real difficulty lies in the third -the technology to match the pronunciations with facial movements so that Xin expressions vary according to the content of the news report. In fact, Xins expressions don' t always change according to the content. As a result, her expressions look anything but human. Actually. AI is still no match for human qualities.

1What does the underlined word "reluctant "in the first paragraph mean?

A. Delighted.B. Unwilling.C. Confused.D. Optimistic.

2What can we infer about previous news robots?

A. They read news without expressions.B. They looked like a human being

C. They could interview sports starsD. They could interact with audience.

3What do we know about the third technology?

A. This technology is very perfect so far

B. This technology is quite popular now

C. This technology remains at the theoretical stage

D. This technology is far from mature.

4From the last paragraph, we can draw a conclusion that____.

A. human news anchors should learn from AT anchors to save their jobs

B. Al anchors perform much better than human news anchors at present

C. Al news anchors won 't replace human news anchors in the near future

D. Xin Xiaomeng s expressions vary so naturally that they are true to life

【题目】 The okapi is a mammal living above the equator in one of the most biodiverse areas in central Africa. The animal was unknown to the western world until the beginning of the 20th century, and is often described as half-zebra, half-giraffe, as if it were a mixed-breed creature from a Greek legend. Yes its image is prevalent in the Democratic Republic of Congo-the only country in the world where it is found living in the world. The okapi is to Congo what the giant panda is to China or the kangaroo to Australia.

Although the okapi has striped markings resembling those of zebras’, it is most closely related to the giraffe. It has a long neck, and large, flexible ears. The face and throat are greyish white. The coat is a chocolate to reddish brown, much in contrast with the white horizontal stripes and rings on the legs and white ankles. Overall, the okapi can be easily distinguished form its nearest relative. It is much smaller (about the size of a horse) and shares more external similarities with the deer than with the giraffe. While both sexes possess horns in the giraffe, only males bear horns in the okapi.

The West got its first whiff of the okapi in 1890 when Welsh Journalist Henry Morton Stanley had puzzled over a strange “African donkey” in his book. Other Europeans in Africa had also heard of an animal that they came to call the “African unicorn.” Explorers may have seen the fleeting view of the striped backside as the animal fled through the bushes, leading to speculation that the okapi was some sort of rainforest zebra. Some even believed that the okapi was a new species of zebra. It was only later, when okapi skeleton was analyzed, that naturalists realized they had a giraffe on their hands.

In 1987, the Okapi Wildlife Reserve was established in eastern Congo to protect this rare mammal. But decades of political turbulence has seen much of the Congo’s natural resources spin out of the government’s control, and okapi numbers have fallen by 50 percent since 1995. Today, only 10,000 remain.

1Which of the following is a picture of an okapi?

A.B.

C.D.

2Which of the following descriptions is true about the okapi?

A.It is an important symbol of Congo.

B.It has been well protected since 1987.

C.It is a mystical creature from a Greek legend

D.It is more closely related to the zebra than the giraffe.

3What does the underlined word“whiff”most likely mean in Paragraph 3?

A.Firm belief.B.Kind intention.

C.Strong dislike.D.Slight trace.

4What can be inferred about Henry Morton Stanley?

A.He was the first Europeans to analyze okapi skeleton.

B.He had found many new species of animals in Africa.

C.He did not know the“African donkey"in his book was the okapi.

D.He had seen the backside of an okapi dashing through the bushes.

【题目】Directions: Fill in each blank with a proper word chosen from the box. Each word can be used only once. Note that there is one word more than you need.

For several decades, various types of artificial intelligence kept shocking the world. Robots could 1 people in highly competitive games and then quickly destroyed their human competitors.

AI long ago mastered chess, the Chinese board game Go and even the Rubik's cube, which it managed to solve in just 0.38 second.

Now machines have a new game that will allow them to 2 humans: Jenga, the popular game in which players 3remove pieces from an increasingly unstable tower of 54 blocks, placing each one on top until the entire structure would 4.

A newly released video from MIT shows a robot developed by the school's engineers playing the game with surprising accuracy. The machine is equipped with a soft gripper(夹子), a force-sensing wrist and an external camera, allowing the robot to detect the tower’s 5 the way a human might do

Unlike in purely recognitive tasks or games such as chess or Go, playing the game of Jenga also requires mastery of physical acts such as pushing, pulling, placing, and arranging pieces. It must 6 interactive physical operation, where you have to touch the tower to learn how and when to move blocks.

Imitating it is rather difficult, so the robot has to learn in the real world, by working with the real Jenga tower. Recently, a relevant research was published in the journal Science Robotics. Researchers say the robot demonstrates that machines can learn how to perform certain tasks through actual touching instead of relying heavily on visual 7. That physical 8 is significant, researchers say, because it provides further proof that robots can be used to perform 9 tasks, such as separating recyclable objects from landfill trash and assembling consumer products.

In a cellphone assembly line, the felling of any component is coming from force and touch rather than vision. To become an accomplished Jenga player, the robot did not require as much repetitive practice as you might imagine. Hoping to avoid reconstructing a Jenga tower thousands of times, researchers developed a method that allowed the robot to be trained on about 300 games. Researchers say the robot has already begun facing off against humans, who remain 10 playersfor now.

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网