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A scientific approach to reducing povert...

    A scientific approach to reducing poverty’s many harmful effects via field experiments in schools and other real-world settings has won the Nobel Memorial Prize in Economic Sciences.

Economists Abhijit Banerjee and Esther Duflo, both of MIT, and Michael Kremer of Harvard University will receive equal shares of the prize of 9 million Swedish kronor. Duflo is only the second woman ever to be awarded the economics Nobel. “Poverty has deep roots, and we use an experimental approach to examine particular aspects of this problem and determine what interventions (干预) work.” Duflo said.

More than 700 million people globally live in extreme poverty. Half of the world’s children leave school without basic language or math skills. Roughly 5 million children under age 5 annually die from diseases that could have been prevented with inexpensive treatments.

The three winners design and test interventions aimed at specific ways to alleviate poverty’s effects on education, health care and other areas. Such studies are especially important because policies intended to fight poverty can often cause opposite results.

In the mid-1990s, Kremer led a team that tested a range of interventions aimed at improving learning among students attending schools in western Kenya. Banerjee and Duflo, often with Kremer, then performed similar studies in other countries. One important line of research developed “Teaching at the Right Level” programs, which enable teachers in low-income, developing nations to target instruction to students’ learning levels. Teachers in these programs learn ways to keep students from falling behind rather than forcing them through a one-size-fits-all curriculum for each grade.

A 2011 study led by Duflo, for instance, found that grade 1 test scores in a Kenyan school increased when teachers divided students into smaller classes based on their initial learning levels.

A string of studies in the. same vein led by the 2019 winners took randomized controlled trials and field experiments from ignored status to standard practice in developing nations.

These studies showed that the virtually unanswerable question “How can we fight global poverty?” could be broken into smaller, testable questions such as “Why do children not attend school?” and “Why do small-scale farmers not use technologies such as modern seeds and fertilizer (肥料) that are known to be profitable?”

1.What does the underlined word “alleviate” in Paragraph 4 most probably mean?

A.relieve

B.remove

C.control

D.transform

2.It can be inferred that the method the 2019 winners applied to education     .

A.is more suitable for high-level students

B.is an intervention initially created by Duflo

C.will surely get rid of the deep roots of poverty

D.takes into consideration students learning levels

3.What can we learn from the experimenting approach the three economists adopt?

A.The authorities concerned should make policies based on scientific findings.

B.Field experimenting is the most scientific way to find whether interventions work.

C.Education should be paid more attention to due to its important part in fighting poverty.

D.It may be helpful to narrow down the scale of a problem by focusing on specific aspects.

 

1.A 2.D 3.D 【解析】 这是一篇说明文。文章讲述了,3位获奖者通过具体方法干预减轻贫困对教育、医疗等方面的影响,最后得出结论:无法回答的大问题可以分成更小的、可测试的问题来进行解答。 1.词义猜测题。由第四段中的“The three winners design and test interventions aimed at specific ways to alleviate poverty’s effects on education, health care and other areas. Such studies are especially important because policies intended to fight poverty can often cause opposite results.”(三位获奖者设计并测试了旨在用具体方法减轻贫困对教育、医疗和其他领域影响的干预措施。这类研究尤其重要,因为旨在抗击贫穷的政策往往会导致相反的结果。),可知旨在消除贫困的政策往往会导致相反的结果,那么这三位获奖者应该是通过具体方法干预减轻贫困对教育、医疗等方面的影响,所以alleviate在此处意为“减轻”。故选A项。 2.推理判断题。由第五段中的“One important line of research developed “Teaching at the Right Level” programs, which enable teachers in low-income, developing nations to target instruction to students’ learning levels.”(一项重要的研究开发了“适当水平的教学”项目,使发展中国家的低收入教师能够针对学生的学习水平进行教学。),第六段中的“A 2011 study led by Duflo, for instance, found that grade 1 test scores in a Kenyan school increased when teachers divided students into smaller classes based on their initial learning levels.”(例如,2011年Duflo领导的一项研究发现,当老师根据学生的初始学习水平将他们分成更小的班级时,肯尼亚一所学校的一年级考试分数会增加。)和第七段也表明了 2019 年的获奖者也采用了同样的思路,也就是考虑学生的实际学习水平,进行随机对照实验。由此判断出2019年的获奖者考虑了学生的学习水平。故选D项。 3.推理判断题。由最后一段中的“These studies showed that the virtually unanswerable question “How can we fight global poverty?” could be broken into smaller, testable questions”(这些研究表明,事实上无法回答的问题“我们如何才能战胜全球贫困?”可以分成更小的、可测试的问题),可知知这些研究都展示了可以将一个大问题分成小的、可以测试的问题。由此判断出,通过关注特定的方面来缩小问题的范围可能是有帮助的。故选D项。
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    Today scientists are creating cool designs with smoother moves. Let’s check out the science behind four awesome robots.

TYPES

HOW IT WORKS

WHAT IT MEANS FOR YOU

T-HR3

The two-legged walking robot imitates the way people move. A human operator wears a headset with cameras that show what the robot “sees”. The human can then control the robot’s actions with his or her own human movements.

With a human helper, T-HR3 could assist people in medical facilities, burning buildings, construction sites, and even space. Its creators hope that T-HR3 will learn to do some tasks itself one day …like, say, your chores, maybe?

SHAPE-SHIFTIING

When a scientist programs in a shape/ the motors change different parts of the surface to make it look like whatever the scientist wants! The shape-shifting robot can be programmed to look like just about anything small and enter tiny space.

In addition to helping scientists secretly observe animals, the shape-shifting robot might one day be used to create more immersive virtual reality experiences. Imagine being able to touch objects in your VR game and not just see them!

SALTO

Rescuers have long used remote-controlled robots to search through nibble. But what’s special about Salto is its jumping ability, enabling it to reach places humans can’t. Twisted rubber bands in its legs make it bouncy enough to leap to high spaces.

Salto’s not just helpful in emergencies. Its technology might one day help fetch things from hard-to-reach places in your home, like that candy bar you hid on the top shelf of the cupboard.

SPOTMINI

The four-legged robot is designed to help with house chores. With its extendable arms, Spotmini can unload dishes and put them in high shelves, grab debris (碎片) in hard-to-reach places. It can even climb stairs.

Experts say future homes will have robots doing chores so that people have more free time. Instead of earning your allowance by taking out the garbage, you might be doing robot repairs instead.

 

 

 

 

 

 

1.If you want to take a close picture of a poisonous snake, which robot is the most suitable?

A.T-HR3 B.SHAPE-SHIFTING C.SALTO D.SPOTMINI

2.What these robots have in common is that they      .

A.work by using a remote-control

B.are designed to help with the housework

C.enable people to see whatever they “see”

D.carry out tasks where humans are hard to reach

 

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    Joe spent 16 years as a fireman and emergency medical technician. He has been honored for his_______in risking his life on numerous occasions to save others. However, one emergency call_______him to poisonous chemicals that later led to repeated strokes (中风). At only_______, the man who had grown 38 to having the physical strength and mobility to save lives was now: _______to tie his own shoes or button his own shirt. Worst of all, the strokes left him _______ seizures (痉挛) that would strike _______,

Before his health _______, Joe was known for being active and optimistic. But after his strokes, he spent day and night in bed, dangerously _______. One of his only _______ joys was Lucky, his 12-year-old Dalmatian, but Joe’s wife Kim ______________something terrible would happen to Joe when Lucky______________. She didn’t want to wait to find out, so she suggested a new dog should be ______________to the family.

Then entered Meatball. He was saved as a puppy from an Afghan war zone and brought to the United States for ______________by Puppy Rescue Mission. Joe and Kim went to the airport to meet Meatball upon his arrival. The moment Meatball came out of his cage, he peed (撒尿) all over Joe and Joe ______________his first genuine laughter in months!

Two years later, one night, Kim was awakened by Meatball’s ______________barking. She went to see what was wrong and found Joe having a______________seizure. Joe was ______________to the hospital Meatball had saved the day. And it wasn’t the only time. “He’s always there ______________me, helping me, making sure I’m okay,” says Joe. Since I got sick, some of my friends have fallen by the wayside,______________this beautiful dog always stays with me. That means I’m worth ______________after all. Pets are the emotional, physical, and spiritual gift we didn’t know we needed.

1.A.fear B.luck C.bravery D.hesitation

2.A.reduced B.shifted C.exposed D.attracted

3.A.committed B.accustomed C.addicted D.abandoned

4.A.afraid B.ashamed C.unable D.unwilling

5.A.to B.by C.for D.with

6.A.painfully B.separately C.randomly D.automatically

7.A.recovered B.improved C.infected D.declined

8.A.depressed B.puzzled C.excited D.embarrassed

9.A.accessible B.remaining C.selective D.meaningful

10.A.anticipated B.suspected C.predicted D.worried

11.A.passed away B.hung out C.fell out D.turned away

12.A.contributed B.offered C.added D.devoted

13.A.profit B.adoption C.release D.memory

14.A.fell into B.dived into C.burst into D.ran into

15.A.confused B.panicked C.surprised D.shocked

16.A.violent B.tough C.common D.slight

17.A.loaded B.rushed C.transferred D.admitted

18.A.praying B.guiding C.tolerating D.watching

19.A.so B.if C.and D.but

20.A.something B.anything C.everything D.nothing

 

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—It’s said that your family will move to another city, why?

—_______.The environment in this city is wonderful and relaxing.

A.That depends B.That’s for sure C.It’s not the case D.It’s hard to say

 

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A recent survey has demonstrated that a large number of victims during the COVID-19 Outbreak______if they had worn masks.

A.should have been saved

B.must have been saved

C.need have been saved

D.could have been saved

 

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—I’m fed up with the wet, cold weather here! I wish tomorrow a sunny day!

—Exactly. Actually, it______every day in the past two weeks.

A.rained B.was raining C.has rained D.has been raining

 

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