Can you remember a morning when you’ve woken up to the ring of your alarm clock and wished you could stay in bed? You haven’t slept well, your hair is a mess. Worse, you can’t stop yawning. Yawning is universal to humans and many animals. Cats, dogs and fish yawn just like humans do! Yawning is an involuntary(无意识的,不自觉的) action during which you open your mouth and breathe deeply. The average duration of a yawn is about 6 seconds.
The purpose and cause of yawning are still a mystery. Scientists are not sure what causes a yawn. People yawn when they are tired or bored, but they also yawn when they aren’t. There are many ideas explaining why we yawn.
One idea is that yawning is a way for the body to become more alert by taking in more oxygen. A yawn increases the heart rate, forces carbon dioxide out of the lungs and blood stream, and brings oxygen to the brain. But one study showed that volunteers given a lot of oxygen did not yawn any less than before, while those given a lot of carbon dioxide did not yawn more.
Another idea is that early humans used yawning as a form of communication. If one decided it was time to sleep, they would tell the others by yawning and they would do it in return to show they agreed.
A third explanation comes from psychology professor Gordon Gallup of University at Albany in New York. He said that as people yawn, they cool off their brains. “Brains are like computers.” he said. “They only operate efficiently and effectively when they’re cool. Many things connected to yawning, like being tired, make the brain hot, and yawning can reduce the heat.”
Scientists have sent people into space, and created terrible nuclear weapons, but there are lots of seemingly simple things, such as why we yawn, or hiccup（打嗝）, that they can’t figure out. Next time you are in class in the morning, let out a big yawn and watch to see how many of your classmates yawn in response!
【小题1】What’s the purpose of the description of how bad you may feel when you’re woken up in the morning?

Can you remember a morning when you’ve woken up to the ring of your alarm clock and wished you could stay in bed? You haven’t slept well, your hair is a mess. Worse, you can’t stop yawning. Yawning is universal to humans and many animals. Cats, dogs and fish yawn just like humans do! Yawning is an involuntary(无意识的,不自觉的) action during which you open your mouth and breathe deeply. The average duration of a yawn is about 6 seconds.

The purpose and cause of yawning are still a mystery. Scientists are not sure what causes a yawn. People yawn when they are tired or bored, but they also yawn when they aren’t. There are many ideas explaining why we yawn.

One idea is that yawning is a way for the body to become more alert by taking in more oxygen. A yawn increases the heart rate, forces carbon dioxide out of the lungs and blood stream, and brings oxygen to the brain. But one study showed that volunteers given a lot of oxygen did not yawn any less than before, while those given a lot of carbon dioxide did not yawn more.

Another idea is that early humans used yawning as a form of communication. If one decided it was time to sleep, they would tell the others by yawning and they would do it in return to show they agreed.

A third explanation comes from psychology professor Gordon Gallup of University at Albany in New York. He said that as people yawn, they cool off their brains. “Brains are like computers.” he said. “They only operate efficiently and effectively when they’re cool. Many things connected to yawning, like being tired, make the brain hot, and yawning can reduce the heat.”

Scientists have sent people into space, and created terrible nuclear weapons, but there are lots of seemingly simple things, such as why we yawn, or hiccup（打嗝）, that they can’t figure out. Next time you are in class in the morning, let out a big yawn and watch to see how many of your classmates yawn in response!

1.What’s the purpose of the description of how bad you may feel when you’re woken up in the morning?

2.Which is not among the possible reasons for yawning mentioned in the passage?

3.In which situation are you likely to yawn?

4.What can we learn from the passage?

Having divorced (离婚) my dad, my mom had to move frequently in order to find a job that would provide her with enough money to support the big family For three years, we lived in the town of Parkersburg On the first Christmas there, my brothers and I had been well prepared for a holiday without presents But we had a surprise on Christmas Eve

    At midnight, we were woken up by someone shouting at our front door, “Ho, ho, ho! Merry Christmas!” We jumped up and ran to the door to find no one there, but several boxes and bags! Not only were there gifts, which were our favorite, but there were also clothes and food Each of us kids, as well as Mom, had gifts with our names on them And the clothes all fit us!

    Another year went by and on Christmas Eve, we again got boxes and bags full of goodies The next year we moved We were in the same town but across the other side Mom was beginning to get on her feet Since we had moved and Mom had a better job, we were quite certain that “Santa” wouldn’t visit us that year But we were wrong!

    Those “Santa” visits restored in me the belief in the goodness of mankind, though to this day we don’t know who our helper was

    When we grew up, Mom moved to Virginia She had some extra money one Christmas She sent it to me and let us know her decision We then took action My husband and children had so much fun buying and wrapping presents for the needy family we had chosen On Christmas Eve, we allowed the excited kids to stay up late to be part of our secret “Santa” project

    Such satisfaction there was in being able to pass on the gift of love to others who needed it And the gift goes on!

1.From the first paragraph, we can learn that ______

A the writer’s family didn’t like to celebrate Christmas

B the writer felt sorry about not having Christmas presents

C the writer’s mother couldn’t afford any Christmas presents

D the writer knew that something surprising would happen

2.The presents that the writer’s family received must be from _______

A someone who has no children

B someone who knew them well

C the church in the neighborhood

D the richest family in the town 

3.What decision did the writer’s mom make in the fifth paragraph?

A To give her extra money to a poor family   

B To thank the person who once helped her family

C To give some Christmas presents to a poor family in secret

D To invite a poor family to spend Christmas with her family  

4.This passage is written to ______

A show pity to the poor people       

B show human kindness

C thank the helper         

D show the advantages of being rich

For 40 years, the people of London have been happy to discover in their parks a bird that seems to have made its way from the Himalayas to the capital of England. With its shocking green body, red mouth, long tail and noisy screech(尖叫), the rose-ringed parakeet (长尾小鹦鹉) brought a vivid colour to parks in and around London.
However, the parakeets are no longer welcome. The government has suddenly woken up to the fact that there are many more parakeets in and around London making life harder for the local bird population. Government experts put the number of parakeets at around 30,000. They fear that if the number of parakeets keeps rising, these birds will push out local birds like wood-peckers, starlings and nuthatches from trees to build their own nests.
Not only that. According to an online report by The Independent, the parakeets will then also get control of most of the food available in the parks — seeds, berries, fruit and nuts. The local bird population will then have a hard time staying alive. An organization called the Royal Society for the Protection of Birds (RSPB) has asked the government to investigate (调查) what kind of a threat the parakeet brings to local birds. If the government decides that these birds are indeed a threat to local birds, steps will be taken to control the number of parakeets.
The most surprising thing about the case of the rose-ringed parakeet is that no one quite knows how the parakeets came from India and started breeding (繁殖) in areas around London.
【小题1】Parakeets are no longer welcome mainly because ______.