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组卷网 > 初中英语综合库 > 主题 > 人与社会 > 科普知识与现代技术 > 科普知识
题型：阅读理解-单选 难度：0.65 引用次数：62 题号：19617984

Do you like doing experiments? What will happen if you put a jar upside down over a burning candle?

What do you need?

What do you do?

What is happening?


● a candle
● a candle holder
● a big glass jar
● a shallow dish
● some water
● a lighter or matches		● Put the candle in the candle holder.
● Put the candle holder on the dish.
● Fill the dish half full with water.
● Light the candle.
● Let the candle burn for two or three minutes.
● Carefully put the jar over the candle until the top of the jar rests on the dish.
● Examine the water in the jar.		● As the candle burns, it uses the oxygen (氧气) in the air. When the candle stops burning, it has used up all the oxygen in the air.
● The water inside the jar rises. Because about one fifth of the air is made up of oxygen, the water rises and fills about one fifth of the jar.
1. How many things do we need to do the experiment?
A．Five.B．Six.C．Seven.
2. What is the fourth step of the experiment?
A．Light the candle.B．Examine the water in the jar.C．Put the candle holder on the dish.
3. What can we learn from the experiment?
A．The top of the jar should rest on the desk.
B．The water inside the jar falls about one fifth of the jar.
C．The candle stops burning because the oxygen is used up.
4. Where can we most probably read this passage?
A．A tour guide.B．A news report.C．A science magazine.
2023·贵州六盘水·二模 查看更多[1]
更新时间：2023-07-19 14:58:34 |
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【知识点】 科普知识 应用文

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科普知识应用文
阅读理解-单选(约220词) | 适中 (0.65)
文章大意：本文主要介绍了几种动物的科普知识。

【推荐1】Trivia about some animals

Ants don’t have ears. But that doesn’t mean they are deaf. They hear by feeling vibrations（震动）in the ground. Ants have special sensors（传感器）on their feet and legs to sense signals from their surroundings.

A whale who sings at the wrong frequency（频率）is known as the loneliest whale in the world. One whale, recorded since 1989 and tracked（跟踪）since 1992, sings at a frequency of 51.75 Hz, while others of her kind sing at 15 to 25 Hz. She’s lonely because no one else can hear her.

Emus can walk forward but not backward. It is not clear why this bird cannot walk backward. Many have suggested that its knee joint（关节）prevents it from moving backward.

Did you know this? Birds can’t be brought into outer space because birds need gravity（重力）to swallow（吞咽）food. NASA did an experiment with a bird in space. After the spaceship reached orbit（轨道）, the bird did not eat anything. It also had some balancing problems.

Water is one of the deadliest enemies of chinchillas. Chinchillas should not get wet because they have very dense（浓密的）fur that is extremely difficult to dry, causing a risk of fungus（真菌）and bacterial（细菌）infection, which can in turn, create a bigger problem for their skin.

1. Ants sense signals by _________.
A．earsB．mouthC．noseD．feet and legs
2. Whales can’t be heard by their own kind if _________.
A．they sing too frequentlyB．they sing at different frequencies
C．they sing at 15 HzD．they sing lower than 25 Hz
3. Which is TRUE, according to the material?
A．Emus can walk backward.B．Chinchillas’ fur is wet and warm.
C．Birds can live normally without gravity.D．Chinchillas don’t like water.
2022-03-16更新 | 134次组卷
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阅读理解-单选(约150词) | 适中 (0.65)

【推荐2】Galileo（伽利略） read the ideas of Copernicus（哥白尼） in the course of his work. Copernicus was a famous scientist who had lived a century before Galileo. In the time of Copernicus(1473-1543), people believed that the earth was the centre of the universe, and that the Sun and all other heavenly（天空的） bodies travelled around it.

By using mathematics and his own observations, Copernicus started to think that the Earth and some of the other planets really travelled around the Sun.

Most people of those times could not accept Copernicus’s ideas. It was hard for them to believe that the Earth was not at the centre of everything. It was hard for Copernicus to prove(证明) scientifically to other people that his ideas were right.


（选自新理念英语第三册 Galileo Galilei and the Beginning of Modern Science）
1. What was Copernicus?
A．A teacher.B．A scientist.C．A singer.D．A worker.
2. How did Copernicus get his own idea?
A．By guessing and playing games.B．By dreaming and praying(祈祷) to God.
C．By calculating(计算) and observingD．By travelling and writing.
3. Which of the following is True?
A．The Earth travelled around the sun.
B．The Earth was the Center of the universe.
C．.It was easy for Copernicus to prove his idea.
D．People believed that the Sun was the center of everything in the time of Copernicus.
4. Which is the best title for this passage?
A．A DIFFERENT WAY OF THINKINGB．ASTRONOMY（天文学）
C．GALILEO AND THE CATHOLIC CHURCH（天主教会）D．THE IDEAS OF COPERNICUS
2019-06-05更新 | 109次组卷
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阅读理解-单选(约320词) | 适中 (0.65)
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【推荐3】When you are busy with your schoolwork, you might find it tough to get enough sleep. We all know that not getting enough sleep is bad for our health. But it has been found that less sleep could even cause you to have fewer friends, the Guardian reported.

According to researchers from the University of California, people who don't get enough sleep are less willing to socialize(社交) with others. They are simply too tired to go out.

The researchers did a small study. They tested 18 young people who just had a good night’s sleep as well as tested them again after a sleepless night. The participants watched videos of people with neutral (中性的) expressions walking toward them. When the person on the video got too "close" to them, they pushed a button (按钮) to stop the video, which recorded how close they allowed the person to get.

The results showed that people kept the person at a distance of 60 percent further back if they hadn’t gotten enough sleep. They felt that their personal space was being invaded(侵占). But when the participants got a good night’s sleep, they allowed the person to get much closer to them.

According to lead （领头）researcher Matthew Walker, the less sleep you get, the less you want to socialize with others. In turn, other people may think you are weird and stay away from you. This can make you feel lonely and cause you to sleep even less. It becomes a vicious cycle(恶性循环). So if you want to be a more sociable and popular person, sleeping well might help. "One night of good sleep. makes you feel more outgoing and socially confident," Walker told the Daily Mail.

1. “When you are busy with your schoolwork, you might find it tough to get enough sleep.” What does this sentence mean?
A．Students are too busy with their schoolwork.
B．Students have too much stress to go to sleep.
C．Students are not allowed to get enough sleep by their teachers and parents.
D．Students are too busy with their schoolwork to have enough time to sleep
2. Researchers from the University of California believe that less sleep_____.
A．makes school life harderB．is good for one’s health
C．makes people less sociableD．causes people to become nervous
3. How did the researchers prove their point?
A．They did a study of 18 young people.
B．They watched videos of sleepy people.
C．They interviewed people on the street.
D．they invited people to play a game.
4. The underlined "participants " in Para 3 means_____.
A．researchers from the university.
B．people with neutral expressions.
C．the tested young people.
D．the sociable people.
5. The media(媒体) mentioned in the passage are_____.
A．the Guardian; Walker
B．the Guardian; the Daily Mail
C．the Daily Mail; the University of California
D．the Daily Mail; Walker
2020-03-18更新 | 227次组卷
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