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题型:阅读理解-阅读单选 难度:0.4 引用次数:156 题号:8816642

For more than twenty years, scientists have been searching for signs of life on other planets.Most of these searches have been done over the radio.The hope is that someone in outer space may be trying to get in touch with us.Scientists also have sent radio and television messages on spaceships traveling through space, on the chance that someone may be receptive to such messages.

Scientists are using powerful radio telescopes to listen to signals from about 1, 000 stars, all within 100 light years of earth.In addition, they will scan the entire sky to "listen" for radio messages from more distant stars.Using a computer, they will be able to monitor more than eight channels at one time.Scientists are looking for any signal that stands out from the background noise.

Of the 200 billion stars in the Milky Way galaxy(银河星系), scientists find that five percent are like our sun.Perhaps half of them have a planet like earth.Such a planet would be a reasonable distance from the star for temperatures to be right for the evolution of life.Based on the inhabitable (that can be lived in) planets in our galaxy, most scientists agree that chances are likely that one or more of these planets support some life.

However, many scientists wonder whether intelligent life exists on other planets.Some believe that twenty years of searching without any intelligible messages shows that no one is out there.They say that the evolution of intelligence comparable to ours is unlikely.

Other scientists believe that our search hasn't been long enough to rule out the possibility that intelligent life exists in our galaxy.Although our sun family is only about five billion years old, our galaxy is about 20 billion years old.In that time, some scientists think it is likely that civilization (文明)much more advanced than ours have developed.Perhaps these civilizations send us no signals; perhaps we have not recognized the signals they have sent us.If we hope to find intelligent life, these scientists believe that we have to keep looking.

1. According to the passage, how many planets in our galaxy might be inhabitable?
A.5 billion.B.10 billion.
C.15 billion.D.100 billion
2. The first paragraph in this passage is mainly about     
A.how scientists are looking for signs of life on other planets
B.why scientists are looking for signs of life on other planets
C.where scientists are looking for signs of life on other planets
D.when scientists are looking for signs of life on other planets
3. The underlined word "monitor" in the passage means" ___ ".
A.findB.change
C.checkD.form
4. Which of these statements is true based on the information in the passage?
A.The earth is one of the oldest planets in our galaxy.
B.Most scientists believe that there is intelligent life on other planets.
C.Scientists are trying different ways to find signs of life on other planets.
D.Scientists don't believe that there might be life on other planets.

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文章大意:这是一篇说明文。文章主要介绍了手势会很快进入孩子的记忆,导致孩子对伴随着这个手势的问题做出错误的回答。一项新的发现表明,父母、社会工作者、心理学家和律师应该注意自己的手势和语言。

【推荐1】A simple gesture can be formed into a child’s memory so quickly that it will cause the child to give a false answer to a question along with that gesture. A new finding suggests that parents, social workers, psychologists and lawyers should be careful with their hands as well as their words.

While memories of both adults and children are easy to react to suggestion, those of children are known to be particularly influenced, said lead researcher Sara Broaders of Northwestern University. Kids are used to looking to adults to tell events for them and can be misled even if not intentionally.

Previous research, for example, has shown that detail-loaded questions often cause false answers; when asked, say “Did you drink juice at the picnic?” the child is likely to say “yes” even if no juice had been available. It is not that the child is consciously lying, but rather the detail is quickly formed into his or her memory.

To avoid this problem, social workers have long been advised to ask children only open-ended questions, such as “What did you have at the picnic?” But an open-ended question paired with a gesture, briefly meaning a juice box, is treated like a detailed question. That is, children become likely to answer falsely.

And it isn’t just a few kids: 77% of children gave at least one piece of false information when a detail was suggested by an ordinary gesture. Gestures may also become more popular when talking with non-fluent language users, such as little kids, Broaders said as hand movements can impart meaning of unfamiliar words and phrases. “It certainly seems reasonable that adults would gesture more with children.”

In general, Broaders advises parents and other adults to “try to be aware of your hands when questioning a child about an event. Otherwise, you might be getting answers that don’t reflect what actually happened.”

1. What can we know about gestures from the text?
A.They are rarely used by people.B.They have not any function at all.
C.They have certain effect on children.D.They are often used by social workers.
2. Why are kids easy to be misled by gestures according to Sara Broaders?
A.Children are easy to tell lies.B.These gestures are very attractive.
C.These gestures are used frequently.D.Children’s memories are affected easily.
3. Which may cause a wrong reply according to the text?
A.Where are you going Lucy?B.What will you have for lunch?
C.Did you see anything else last night?D.Did you cheat in the last English examination?
4. What does the underlined word “impart” in paragraph 5 mean?
A.Tell apart.B.Pass on.C.Mix up.D.Break up.
2023-11-14更新 | 74次组卷
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【推荐2】Contrary to popular belief, when a person makes a mistake while learning, it improves their memory for the right information, but only if the error is close to the correct answer, according to recent findings by Baycrest researchers.

Our research found evidence that mistakes that are a' near miss' can help a person learn the in formation better than if no errors were made at all, says Dr. Nicole Anderson, senior scientist at Bavcrest's Rotman Research Institute. " These types of errors can serve as stepping stones to remembering the right answer. But if the error made is a wild guess, then a person doesn’t learn the correct information as easily.

In their study, researchers asked 32 young adults with no Spanish background to guess the English definition of certain Spanish words,, The Spanish words selected either resembled an English word with a similar meaning or the word looked like an English word. but meant something different.

Participants were shown the Spanish words and asked to guess their meanings. Then, they were briefly shown the correct translation, before being shown another Spanish word. After repeating this process with 16 Spanish words, participants had a short break before their memory for the translations was tested. Researchers found that people were better able to think of the correct translations for Spanish words that were similar to the English words.They had greater difficulty recalling the meaning for words that looked misleading.

''Based on these findings, someone studying for an exam should only take practice quizzes Nafter reviewing the material, "says Dr. Anderson. "If a person takes a practice test and is unfamiliar with the content, they risk making guesses that are nowhere near the right answer.

This could make it harder for them to learn the correct information later".

1. What do people usually think of mistakes in learning?
A.Necessary
B.Avoidable
C.Harmful
D.Beneficial
2. Which of the following best explains"recalling" underlined in paragraph 4?
A.Remembering
B.Realizing
C.Distinguishing
D.Understanding
3. Which of the following reflects Dr. Andersons opinion?
A.Errors of any kind are likely to help with learning
B.Taking practice tests before exams isn't always a good thing
C.Practice tests should be taken before lessons have been reviewed
D.It's important to make as few mistake as possible during learning.
4. What can be a suitable title for the text?
A.Making Mistakes Is Also an Art.
B.A Unexpected Way to Improve Memory
C.Trying to Remember the Correct Information Is Important
D.Making Mistakes While Studying May Help. You Learn Better
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【推荐3】NASA is studying ways to build human habitations on the Red Planet. In 2016, SpaceX publicly announced a plan to begin building settlements Mars. This mission (任务)could put people on Mars by 2026. This is why astrobiology students at Villanova began their Mars Gardens project, investigating which plants and vegetables can grow in iron oxide-rich Martian soil simulant (模拟物).

A few billion years ago, Mars had a better environment, complete with oceans, a mild climate and quite possibly —life. It has since lost most of its atmosphere and water and there's currently no water on its surface. Water (or ice) is present beneath the surface, however, as well as in the planet's icy polar areas. The tough conditions on Mars make it necessary for all plants to be grown in heated, pressurized greenhouses with significant compensations (补充)made for atmosphere, wetness and water.

In their greenhouse experiments, the Villanova students took measures to create an environment that's both plant-friendly and similar to what would be found in greenhouses on Mars. They made sure, for example that plants received roughly the same amount of sunlight as they would on Mars. The students found that their success rates improve by using multiwavelength LEDs and adding potting soil or earthworm feces.

The students were able to get certain vegetables from consideration. For example, the low light on Mars does not lend itself well to growing plants that require full sun, which include favorites like tomatoes, beans, corn or many root plants. Carrots also don't make the cut. Potatoes largely don't thrive in the simulant soil and low light conditions, but sweet potatoes do a little better.

The students found that dandelions (蒲公英)would grow well on Mars and have significant benefits: they grow quickly, every part of the plant is eatable, and they have high nutritional value. Other thriving plants include microgreens, lettuce, peas and so on.

1. What do the students at Villanova intend to do with their project?
A.Design space crafts for the Mars mission.
B.Choose possible plants to be grown on Mars.
C.Study reasons for environmental changes on Mars.
D.Test models of human settlements to be set up on Mars.
2. What is the environment on Mars like?
A.The air pressure is low.B.The temperature is high.
C.The soil is plant-friendly,D.The sunlight is abundant.
3. What does the underlined word “thrive” in Paragraph 4 mean?
A.Have high nutrition.B.Require full sun.
C.Grow well.D.Adjust to the conditions.
4. Which is likely to grow best on Mars?
A.Tomatoes.B.Carrots.C.Potatoes.D.Dandelions.
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