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What is the first thing you want to do when you see someone yawn(打哈欠)?You want to yawn, too! Yawning is contagious.
Scientists have found that all people yawn. Babies start to yawn even before they are born. The earliest yawn takes place when a baby is still inside its mother. When young children are about one year old, they start to yawn when they see others yawning. That’s why scientists seem to think yawning is contagious.
It’s no secret that yawning is contagious, but why do we yawn? Well, scientists are not really sure.
Some think we yawn because we feel bored. Recently scientists studied two groups of students between the ages of 17 and 19. One group watched music videos, and the other watched a boring color test. Scientists compared the numbers of their yawns and found that the color test group yawned more times than the video group.
Another reason for yawning has to do with breathing. Some scientists believe that when we are bored or tired, we breathe more slowly. As our breathing slows down, we cannot get rid of (去除)enough carbon dioxide, our bodies will tell the brains(大脑)to breathe deeply. The result is a big yawn.
In 2007, scientists suggested a new reason. They said that the reason why people yawned was to cool down their brains. These scientists found that people who were warmer than others yawned more often.
Scientists are still trying to find out why yawning happens and why it is so contagious. But they are only sure that when one person yawns, almost everyone else nearby wants to yawn, too.
The underlined word “contagious” in Paragraph 1 means _________.

A.helpful to our health
B.passing from one person to another
C.hard to understand
D.getting into one trouble after another

According to the scientists, people start to yawn when they are _______.

A.born B.one year old C.17 or 19 years old D.inside their mothers

Which of the following are the possible reasons for yawning according to the passage?
①People yawn because they are bored    
②People yawn to catch others’ attention
③People yawn to cool down their brains  
④People yawn to get rid of carbon dioxide.

A.①②③ B.②③④ C.①②④ D.①③④

We can probably read this passage in a ____________

A.storybook B.travel guidebook C.movie poster D.science magazine
科目 英语   题型 阅读理解   难度 中等
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相关试题

Have you ever complained why life is so tiring? Does the sky sometimes seem dark to you? Are your studies sometimes not successful? Well, friends, cheer up and smile all the time. If you see the world with your warm heart, you'll find that the whole world smiles to you. While in school, sometimes you are tired of your lessons, but have you ever noticed the happy smile on your teacher's face when you did a good job?
One day it is fine. Just before you go out, it suddenly starts to rain. Maybe you would feel very sad and start to complain about the weather. But friends, why don't you sit down and listen to the free concerts that the nature offers you? And with the timely (及时地) rain, crops in the fields will grow better and better and farmers will have a good harvest.
Although everyone wants to succeed in what he tries to do, sometimes failure can't be avoided. I think failure is not terrible, and the terrible thing is that we are afraid of it and give up hope. When we face failure, we must be confident (信心) in ourselves, draw a useful lesson from it and try our best to finish what we have decided to do. As a popular saying goes," Failure is the mother of success".
Attitude (态度) decides everything. With an optimistic (乐观) attitude life is easy and pleasant. Let's smile to whatever we meet and the whole world will smile to us.
People sometimes complain_______.
A. life is tiring
B. their studies are successful
C. the sky is always dark
According to the passage, in school,_______.
A. the students don't like their lessons
B. the teachers will be happy if the students do good jobs
C. the teachers don't like their teaching
When we face failure, we_______.
A. shouldn't give up hope
B. must be confident in ourselves
C. Both A and B
If there is a timely rain,_______.
A. farmers can't have a good harvest
B. you can listen to a concert
C. crops in the fields will grow better
The best title for this passage is _______.
A. Smile and the World Smiles to You
B. Complaining about life
C. Failure is the Mother of Success

Whenever the sun dropped and the blue sky came up, my father and I used to climb the mountain near my house. Walking together, my father and I used to have a lot of conversations through which I learned lessons from his experiences. He always told me, “You should have goals like climbing the mountain.” Without the mountain-climbing that we both enjoyed, we couldn’t have enough time to spend together because my father was very busy. I really got a lot from the mountain-climbing. It gave me time to talk with my father and to be in deep thought as well as develop my patience.
Once we climbed a very high mountain. It was so challenging for me because I was only ten years old. During the first few hours of climbing, I enjoyed the flowers and trees, and the birds’ singing. But as time passed, I got a pain in both of my legs. I wanted to stop climbing, but my father said to me, “You can always see a beautiful sky at the top of the mountain, but you can’t see it before you reach the top. Only there can you see all of the nice things, which is just like your life.”
At that time, I was too young to understand his words. But later after that, I got to know the meaning of hope in life. I found myself standing at the top of the mountain, and the sky was as clear as crystal.
The writer tells us that mountain-climbing was ______ for his father and him.
A. hard B. enjoyable C. painful
The underlined word “crystal” in the passage means _______.
A. 岩石 B. 火焰 C. 水晶
Which of the following is the closest meaning to the father’s words in the second paragraph?
A. You will get all you need at the top of the mountain.
B. Never give up half-way.
C.You can find life is full of nice things.
We can infer(推断) from the last paragraph that ______.
A. the writer was very successful in his life
B. the writer reached the top of the mountain
C. though the writer was young, he could understand his father
Which one is the best title for the passage?
A. Reaching the Top of the Mountain.
B. Standing at the Top of the Mountain.
C. Conversations between Father and Son.


注:courtesy礼貌,audience观众
How many days will the show be on?
A. For 10 days. B. For 12 days. C. For 15 days.
How long does each show last?
A. Half an hour. B. One hour. C. One hour and a half'.
If a family of four go to the theatre in the evening,they have to pay at leastdollars for the tickets
A. 85 B. 100 C. 120
are not allowed to enter the theatre
A. Latecomers B. Kids below three years old C. School students
70 What information CANNOT be found in the advertisement?
A. The name of the show. B. The name of the director. C. The telephone number.

阅读短文,按要求完成短文后的各项任务。
Because earthquakes happen without warning, it’s important to take steps now to prepare. Because you don’t know where you will be when an earthquake happens, prepare some supplies for your home, workplace and car.
1. Water
A person needs 1or 2 gallons of water daily just for drinking. (1)So store
1 gallon of water per person every day and be prepared for a 72-hour period. It is suggested that you buy bottled water. Keep bottled water in its original container and (2) do not open it until you need to use it. Also, do check the “use by” date.
2. Food
It’s always a practical idea to keep a supply of non-perishable (不易腐烂的) food on hand. Have an enough supply of canned food, powered milk, dried fruits, non-salted nuts and canned juices for at least 72 hours.
3. Flash light (手电筒) and spare batteries
Keep a flashlight beside your bed, at your place of work, and in your car. Do not use matches or candles after an earthquake until you are sure there are no gas leaks. Prepare a battery-powered radio and spare batteries. Most telephones will be out of order, so radios will be your best source of information.
4. Clothes
If you live in a cold place, you must think about warmth. You might not have heat after an earthquake. Think about your clothing and bedding supplies.
在(1)句的空白处分别填入一个适当的词使句意完整、上下文通顺。
将(2)句译成中文。
回答问题: When can we use matches or candles after an earthquake?
在文中找出与Most telephones will not be in service and radios will supply information for you.意思相同或相近的句子,并将它写在答题卡上。
在文中找出最能表达该短文主题的句子,并将它写在答题卡上。

When I was a child, my parents always told me that I should never talk to strangers. This was part of a whole list of things I should never do: Never accept food or candy from strangers, never get in a car with strangers, and so on.
But if we didn’t start a conversation with strangers, we’d never make new friends. We’d never get a job. We may miss the joy that comes from talking with strangers. And the more people you know, you more chances you can get.
The following passage offers you some advice on how to break the ice.
Don’t just stare at your shoes. Go and say “Hi” to that new guy. It will be easier to break the ice if you know more about different cultures.
British: Beautiful day, isn’t it?
The weather in Britain is changeable. So, it is one of the topics the British care most about. And there’s a simple rule: Say “Yes” whether you agree with the person’s idea on the weather or not. That’s because the British start a conversation using the weather so that they can continue their talk.
French: Where did you go on holiday?
To talk with a French person, the safest way is to ask his or her last holiday. French students enjoy a 10-to-15-day holiday every two months. French employees get more than six weeks of holidays per year.
American: So, where are you from?
The US is so big and people move so often that location is always a source(来源) of talk. You can try to find a connection with the place they’re from. For example, if someone’s from Los Angeles, you could say:“Oh, I have a friend who studied there”
Why did the writer’s parents tell him not to talk to strangers?

A.It was dangerous.
B.Is wasted time.
C.It was part of the life.
D.Their son didn’t like to talk to strangers.

The best thing to talk with British is .

A.the fog B.the rain
C.the weather D.the wind

To talk with a French person, the safest way is .

A.his or her family B.his or her parents
C.his or her friends D.his or her last holiday

The location is always a source of talk in America because.

A.They are energetic
B.They love their home
C.Los Angeles is their location
D.The US is so big and people move so often

According to the passage, the writer thinks .

A.his parents were right
B.he can talk with strangers freely
C.It is necessary to talk with strangers
D.he can find jobs easily

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